Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

17 files changed, 6270 insertions, 0 deletions

diff --git a/security/nss/lib/cryptohi/Makefile b/security/nss/lib/cryptohi/Makefile
new file mode 100644
index 0000000000..aae54b1e0f
--- /dev/null
+++ b/security/nss/lib/cryptohi/Makefile
@@ -0,0 +1,46 @@
+#! gmake
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#######################################################################
+# (1) Include initial platform-independent assignments (MANDATORY).   #
+#######################################################################
+
+include manifest.mn
+
+#######################################################################
+# (2) Include "global" configuration information. (OPTIONAL)          #
+#######################################################################
+
+include $(CORE_DEPTH)/coreconf/config.mk
+
+#######################################################################
+# (3) Include "component" configuration information. (OPTIONAL)       #
+#######################################################################
+
+
+
+#######################################################################
+# (4) Include "local" platform-dependent assignments (OPTIONAL).      #
+#######################################################################
+
+#######################################################################
+# (5) Execute "global" rules. (OPTIONAL)                              #
+#######################################################################
+
+include $(CORE_DEPTH)/coreconf/rules.mk
+
+#######################################################################
+# (6) Execute "component" rules. (OPTIONAL)                           #
+#######################################################################
+
+
+
+#######################################################################
+# (7) Execute "local" rules. (OPTIONAL).                              #
+#######################################################################
+
+
+
diff --git a/security/nss/lib/cryptohi/cryptohi.gyp b/security/nss/lib/cryptohi/cryptohi.gyp
new file mode 100644
index 0000000000..ef9e63fbf5
--- /dev/null
+++ b/security/nss/lib/cryptohi/cryptohi.gyp
@@ -0,0 +1,27 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+{
+  'includes': [
+    '../../coreconf/config.gypi'
+  ],
+  'targets': [
+    {
+      'target_name': 'cryptohi',
+      'type': 'static_library',
+      'sources': [
+        'dsautil.c',
+        'sechash.c',
+        'seckey.c',
+        'secsign.c',
+        'secvfy.c'
+      ],
+      'dependencies': [
+        '<(DEPTH)/exports.gyp:nss_exports'
+      ]
+    }
+  ],
+  'variables': {
+    'module': 'nss'
+  }
+}
\ No newline at end of file
diff --git a/security/nss/lib/cryptohi/cryptohi.h b/security/nss/lib/cryptohi/cryptohi.h
new file mode 100644
index 0000000000..7b66f0b0b9
--- /dev/null
+++ b/security/nss/lib/cryptohi/cryptohi.h
@@ -0,0 +1,425 @@
+/*
+ * cryptohi.h - public prototypes for the crypto library
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _CRYPTOHI_H_
+#define _CRYPTOHI_H_
+
+#include "blapit.h"
+
+#include "seccomon.h"
+#include "secoidt.h"
+#include "secdert.h"
+#include "cryptoht.h"
+#include "keythi.h"
+#include "certt.h"
+
+SEC_BEGIN_PROTOS
+
+/****************************************/
+/*
+** DER encode/decode (EC)DSA signatures
+*/
+
+/* ANSI X9.57 defines DSA signatures as DER encoded data.  Our DSA1 code (and
+ * most of the rest of the world) just generates 40 bytes of raw data.  These
+ * functions convert between formats.
+ */
+extern SECStatus DSAU_EncodeDerSig(SECItem *dest, SECItem *src);
+extern SECItem *DSAU_DecodeDerSig(const SECItem *item);
+
+/*
+ * Unlike DSA1, raw DSA2 and ECDSA signatures do not have a fixed length.
+ * Rather they contain two integers r and s whose length depends
+ * on the size of q or the EC key used for signing.
+ *
+ * We can reuse the DSAU_EncodeDerSig interface to DER encode
+ * raw ECDSA signature keeping in mind that the length of r
+ * is the same as that of s and exactly half of src->len.
+ *
+ * For decoding, we need to pass the length of the desired
+ * raw signature (twice the key size) explicitly.
+ */
+extern SECStatus DSAU_EncodeDerSigWithLen(SECItem *dest, SECItem *src,
+                                          unsigned int len);
+extern SECItem *DSAU_DecodeDerSigToLen(const SECItem *item, unsigned int len);
+
+/****************************************/
+/*
+** Signature creation operations
+*/
+
+/*
+** Create a new signature context used for signing a data stream.
+**      "alg" the signature algorithm to use (e.g. SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION)
+**	"privKey" the private key to use
+*/
+extern SGNContext *SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *privKey);
+
+/*
+** Create a new signature context from an algorithmID.
+**      "alg" the signature algorithm to use
+**	"privKey" the private key to use
+*/
+extern SGNContext *SGN_NewContextWithAlgorithmID(SECAlgorithmID *alg,
+                                                 SECKEYPrivateKey *privKey);
+
+/*
+** Destroy a signature-context object
+**	"cx" the object
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void SGN_DestroyContext(SGNContext *cx, PRBool freeit);
+
+/*
+** Reset the signing context "cx" to its initial state, preparing it for
+** another stream of data.
+*/
+extern SECStatus SGN_Begin(SGNContext *cx);
+
+/*
+** Update the signing context with more data to sign.
+**	"cx" the context
+**	"input" the input data to sign
+**	"inputLen" the length of the input data
+*/
+extern SECStatus SGN_Update(SGNContext *cx, const unsigned char *input,
+                            unsigned int inputLen);
+
+/*
+** Finish the signature process. Use either k0 or k1 to sign the data
+** stream that was input using SGN_Update. The resulting signature is
+** formatted using PKCS#1 and then encrypted using RSA private or public
+** encryption.
+**	"cx" the context
+**	"result" the final signature data (memory is allocated)
+*/
+extern SECStatus SGN_End(SGNContext *cx, SECItem *result);
+
+/*
+** Sign a single block of data using private key encryption and given
+** signature/hash algorithm.
+**	"result" the final signature data (memory is allocated)
+**	"buf" the input data to sign
+**	"len" the amount of data to sign
+**	"pk" the private key to encrypt with
+**	"algid" the signature/hash algorithm to sign with
+**		(must be compatible with the key type).
+*/
+extern SECStatus SEC_SignData(SECItem *result,
+                              const unsigned char *buf, int len,
+                              SECKEYPrivateKey *pk, SECOidTag algid);
+
+/*
+** Sign a single block of data using private key encryption and given
+** signature/hash algorithm with parameters from an algorithmID.
+**	"result" the final signature data (memory is allocated)
+**	"buf" the input data to sign
+**	"len" the amount of data to sign
+**	"pk" the private key to encrypt with
+**	"algid" the signature/hash algorithm to sign with
+**		(must be compatible with the key type).
+*/
+extern SECStatus SEC_SignDataWithAlgorithmID(SECItem *result,
+                                             const unsigned char *buf, int len,
+                                             SECKEYPrivateKey *pk,
+                                             SECAlgorithmID *algid);
+
+/*
+** Sign a pre-digested block of data using private key encryption, encoding
+**  The given signature/hash algorithm.
+**	"result" the final signature data (memory is allocated)
+**	"digest" the digest to sign
+**	"privKey" the private key to encrypt with
+**	"algtag" The algorithm tag to encode (need for RSA only)
+*/
+extern SECStatus SGN_Digest(SECKEYPrivateKey *privKey,
+                            SECOidTag algtag, SECItem *result, SECItem *digest);
+
+/*
+** DER sign a single block of data using private key encryption and the
+** MD5 hashing algorithm. This routine first computes a digital signature
+** using SEC_SignData, then wraps it with an CERTSignedData and then der
+** encodes the result.
+**	"arena" is the memory arena to use to allocate data from
+** 	"result" the final der encoded data (memory is allocated)
+** 	"buf" the input data to sign
+** 	"len" the amount of data to sign
+** 	"pk" the private key to encrypt with
+*/
+extern SECStatus SEC_DerSignData(PLArenaPool *arena, SECItem *result,
+                                 const unsigned char *buf, int len,
+                                 SECKEYPrivateKey *pk, SECOidTag algid);
+
+/*
+** DER sign a single block of data using private key encryption and
+** the given signature/hash algorithm with parameters from an
+** algorithmID. This routine first computes a digital signature using
+** SEC_SignData, then wraps it with an CERTSignedData and then der
+** encodes the result.
+**	"arena" is the memory arena to use to allocate data from
+** 	"result" the final der encoded data (memory is allocated)
+** 	"buf" the input data to sign
+** 	"len" the amount of data to sign
+** 	"pk" the private key to encrypt with
+**	"algid" the signature/hash algorithm to sign with
+**		(must be compatible with the key type).
+*/
+extern SECStatus SEC_DerSignDataWithAlgorithmID(PLArenaPool *arena,
+                                                SECItem *result,
+                                                const unsigned char *buf,
+                                                int len,
+                                                SECKEYPrivateKey *pk,
+                                                SECAlgorithmID *algid);
+
+/*
+** Destroy a signed-data object.
+**	"sd" the object
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void SEC_DestroySignedData(CERTSignedData *sd, PRBool freeit);
+
+/*
+** Get the signature algorithm tag number for the given key type and hash
+** algorithm tag. Returns SEC_OID_UNKNOWN if key type and hash algorithm
+** do not match or are not supported.
+*/
+extern SECOidTag SEC_GetSignatureAlgorithmOidTag(KeyType keyType,
+                                                 SECOidTag hashAlgTag);
+
+/*
+** Create algorithm parameters for signing. Return a new item
+** allocated from arena, or NULL on failure.
+**	"arena" is the memory arena to use to allocate data from
+**	"result" the encoded parameters (memory is allocated)
+**	"signAlgTag" is the signing algorithm
+**	"hashAlgTag" is the preferred hash algorithm
+**	"params" is the default parameters
+**	"key" is the private key
+*/
+extern SECItem *SEC_CreateSignatureAlgorithmParameters(PLArenaPool *arena,
+                                                       SECItem *result,
+                                                       SECOidTag signAlgTag,
+                                                       SECOidTag hashAlgTag,
+                                                       const SECItem *params,
+                                                       const SECKEYPrivateKey *key);
+
+/****************************************/
+/*
+** Signature verification operations
+*/
+
+/*
+** Create a signature verification context. This version is deprecated,
+**  This function is deprecated. Use VFY_CreateContextDirect or
+**  VFY_CreateContextWithAlgorithmID instead.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"sigAlg" specifies the signing algorithm to use (including the
+**         hash algorthim).  This must match the key type.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContext(SECKEYPublicKey *key, SECItem *sig,
+                                     SECOidTag sigAlg, void *wincx);
+/*
+** Create a signature verification context.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key
+**         type.
+**	"hashAlg" specifies the hashing algorithm used. If the key is an
+**	   RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN.
+**	   the hash is selected from data in the sig.
+**	"hash" optional pointer to return the actual hash algorithm used.
+**	   in practice this should always match the passed in hashAlg (the
+**	   exception is the case where hashAlg is SEC_OID_UNKNOWN above).
+**         If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContextDirect(const SECKEYPublicKey *key,
+                                           const SECItem *sig,
+                                           SECOidTag pubkAlg,
+                                           SECOidTag hashAlg,
+                                           SECOidTag *hash, void *wincx);
+/*
+** Create a signature verification context from a algorithm ID.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" optional pointer to return the oid of the actual hash used in
+**         the signature. If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContextWithAlgorithmID(const SECKEYPublicKey *key,
+                                                    const SECItem *sig,
+                                                    const SECAlgorithmID *algid,
+                                                    SECOidTag *hash,
+                                                    void *wincx);
+
+/*
+** Destroy a verification-context object.
+**	"cx" the context to destroy
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void VFY_DestroyContext(VFYContext *cx, PRBool freeit);
+
+extern SECStatus VFY_Begin(VFYContext *cx);
+
+/*
+** Update a verification context with more input data. The input data
+** is fed to a secure hash function (depending on what was in the
+** encrypted signature data).
+**	"cx" the context
+**	"input" the input data
+**	"inputLen" the amount of input data
+*/
+extern SECStatus VFY_Update(VFYContext *cx, const unsigned char *input,
+                            unsigned int inputLen);
+
+/*
+** Finish the verification process. The return value is a status which
+** indicates success or failure. On success, the SECSuccess value is
+** returned. Otherwise, SECFailure is returned and the error code found
+** using PORT_GetError() indicates what failure occurred.
+** 	"cx" the context
+*/
+extern SECStatus VFY_End(VFYContext *cx);
+
+/*
+** Finish the verification process. The return value is a status which
+** indicates success or failure. On success, the SECSuccess value is
+** returned. Otherwise, SECFailure is returned and the error code found
+** using PORT_GetError() indicates what failure occurred. If signature is
+** supplied the verification uses this signature to verify, otherwise the
+** signature passed in VFY_CreateContext() is used.
+** VFY_EndWithSignature(cx,NULL); is identical to VFY_End(cx);.
+** 	"cx" the context
+** 	"sig" the encrypted signature data
+*/
+extern SECStatus VFY_EndWithSignature(VFYContext *cx, SECItem *sig);
+
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+**  This function is deprecated. Use VFY_VerifyDigestDirect or
+**  VFY_VerifyDigestWithAlgorithmID instead.
+** 	"dig" the digest
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"sigAlg" specifies the signing algorithm to use.  This must match
+**	    the key type.
+**	"wincx" void pointer to the window context
+**/
+extern SECStatus VFY_VerifyDigest(SECItem *dig, SECKEYPublicKey *key,
+                                  SECItem *sig, SECOidTag sigAlg, void *wincx);
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+** 	"dig" the digest
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key
+**         type.
+**	"hashAlg" specifies the hashing algorithm used.
+**	"wincx" void pointer to the window context
+**/
+extern SECStatus VFY_VerifyDigestDirect(const SECItem *dig,
+                                        const SECKEYPublicKey *key,
+                                        const SECItem *sig, SECOidTag pubkAlg,
+                                        SECOidTag hashAlg, void *wincx);
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" oid of the actual hash used to create digest. If this  value is
+**         not set to SEC_OID_UNKNOWN, it must match the hash of the signature.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDigestWithAlgorithmID(const SECItem *dig,
+                                                 const SECKEYPublicKey *key, const SECItem *sig,
+                                                 const SECAlgorithmID *algid, SECOidTag hash,
+                                                 void *wincx);
+
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+**   This function is deprecated. Use VFY_VerifyDataDirect or
+**   VFY_VerifyDataWithAlgorithmID instead.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"sigAlg" specifies the signing algorithm to use.  This must match
+**	    the key type.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyData(const unsigned char *buf, int len,
+                                const SECKEYPublicKey *key, const SECItem *sig,
+                                SECOidTag sigAlg, void *wincx);
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key
+**         type.
+**	"hashAlg" specifies the hashing algorithm used. If the key is an
+**	   RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN.
+**	   the hash is selected from data in the sig.
+**	"hash" optional pointer to return the actual hash algorithm used.
+**	   in practice this should always match the passed in hashAlg (the
+**	   exception is the case where hashAlg is SEC_OID_UNKNOWN above).
+**         If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDataDirect(const unsigned char *buf, int len,
+                                      const SECKEYPublicKey *key,
+                                      const SECItem *sig,
+                                      SECOidTag pubkAlg, SECOidTag hashAlg,
+                                      SECOidTag *hash, void *wincx);
+
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" optional pointer to return the oid of the actual hash used in
+**         the signature. If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDataWithAlgorithmID(const unsigned char *buf,
+                                               int len, const SECKEYPublicKey *key,
+                                               const SECItem *sig,
+                                               const SECAlgorithmID *algid, SECOidTag *hash,
+                                               void *wincx);
+
+SEC_END_PROTOS
+
+#endif /* _CRYPTOHI_H_ */
diff --git a/security/nss/lib/cryptohi/cryptoht.h b/security/nss/lib/cryptohi/cryptoht.h
new file mode 100644
index 0000000000..5780bf47ae
--- /dev/null
+++ b/security/nss/lib/cryptohi/cryptoht.h
@@ -0,0 +1,14 @@
+/*
+ * cryptoht.h - public data structures for the crypto library
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _CRYPTOHT_H_
+#define _CRYPTOHT_H_
+
+typedef struct SGNContextStr SGNContext;
+typedef struct VFYContextStr VFYContext;
+
+#endif /* _CRYPTOHT_H_ */
diff --git a/security/nss/lib/cryptohi/dsautil.c b/security/nss/lib/cryptohi/dsautil.c
new file mode 100644
index 0000000000..cc575878f6
--- /dev/null
+++ b/security/nss/lib/cryptohi/dsautil.c
@@ -0,0 +1,271 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "cryptohi.h"
+#include "secasn1.h"
+#include "secitem.h"
+#include "prerr.h"
+
+#ifndef DSA1_SUBPRIME_LEN
+#define DSA1_SUBPRIME_LEN 20 /* bytes */
+#endif
+
+typedef struct {
+    SECItem r;
+    SECItem s;
+} DSA_ASN1Signature;
+
+const SEC_ASN1Template DSA_SignatureTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(DSA_ASN1Signature) },
+    { SEC_ASN1_INTEGER, offsetof(DSA_ASN1Signature, r) },
+    { SEC_ASN1_INTEGER, offsetof(DSA_ASN1Signature, s) },
+    { 0 }
+};
+
+/* Input is variable length multi-byte integer, MSB first (big endian).
+** Most signficant bit of first byte is NOT treated as a sign bit.
+** May be one or more leading bytes of zeros.
+** Output is variable length multi-byte integer, MSB first (big endian).
+** Most significant bit of first byte will be zero (positive sign bit)
+** No more than one leading zero byte.
+** Caller supplies dest buffer, and assures that it is long enough,
+** e.g. at least one byte longer that src's buffer.
+*/
+void
+DSAU_ConvertUnsignedToSigned(SECItem *dest, SECItem *src)
+{
+    unsigned char *pSrc = src->data;
+    unsigned char *pDst = dest->data;
+    unsigned int cntSrc = src->len;
+
+    /* skip any leading zeros. */
+    while (cntSrc && !(*pSrc)) {
+        pSrc++;
+        cntSrc--;
+    }
+    if (!cntSrc) {
+        *pDst = 0;
+        dest->len = 1;
+        return;
+    }
+
+    if (*pSrc & 0x80)
+        *pDst++ = 0;
+
+    PORT_Memcpy(pDst, pSrc, cntSrc);
+    dest->len = (pDst - dest->data) + cntSrc;
+}
+
+/*
+** src is a buffer holding a signed variable length integer.
+** dest is a buffer which will be filled with an unsigned integer,
+** MSB first (big endian) with leading zeros, so that the last byte
+** of src will be the LSB of the integer.  The result will be exactly
+** the length specified by the caller in dest->len.
+** src can be shorter than dest.  src can be longer than dst, but only
+** if the extra leading bytes are zeros.
+*/
+SECStatus
+DSAU_ConvertSignedToFixedUnsigned(SECItem *dest, SECItem *src)
+{
+    unsigned char *pSrc = src->data;
+    unsigned char *pDst = dest->data;
+    unsigned int cntSrc = src->len;
+    unsigned int cntDst = dest->len;
+    int zCount = cntDst - cntSrc;
+
+    if (zCount > 0) {
+        PORT_Memset(pDst, 0, zCount);
+        PORT_Memcpy(pDst + zCount, pSrc, cntSrc);
+        return SECSuccess;
+    }
+    if (zCount <= 0) {
+        /* Source is longer than destination.  Check for leading zeros. */
+        while (zCount++ < 0) {
+            if (*pSrc++ != 0)
+                goto loser;
+        }
+    }
+    PORT_Memcpy(pDst, pSrc, cntDst);
+    return SECSuccess;
+
+loser:
+    PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
+    return SECFailure;
+}
+
+/* src is a "raw" ECDSA or DSA signature, the first half contains r
+ * and the second half contains s. dest is the DER encoded signature.
+*/
+static SECStatus
+common_EncodeDerSig(SECItem *dest, SECItem *src)
+{
+    SECItem *item;
+    SECItem srcItem;
+    DSA_ASN1Signature sig;
+    unsigned char *signedR;
+    unsigned char *signedS;
+    unsigned int len;
+
+    /* Allocate memory with room for an extra byte that
+     * may be required if the top bit in the first byte
+     * is already set.
+     */
+    len = src->len / 2;
+    signedR = (unsigned char *)PORT_Alloc(len + 1);
+    if (!signedR)
+        return SECFailure;
+    signedS = (unsigned char *)PORT_ZAlloc(len + 1);
+    if (!signedS) {
+        if (signedR)
+            PORT_Free(signedR);
+        return SECFailure;
+    }
+
+    PORT_Memset(&sig, 0, sizeof(sig));
+
+    /* Must convert r and s from "unsigned" integers to "signed" integers.
+    ** If the high order bit of the first byte (MSB) is 1, then must
+    ** prepend with leading zero.
+    ** Must remove all but one leading zero byte from numbers.
+    */
+    sig.r.type = siUnsignedInteger;
+    sig.r.data = signedR;
+    sig.r.len = sizeof signedR;
+    sig.s.type = siUnsignedInteger;
+    sig.s.data = signedS;
+    sig.s.len = sizeof signedR;
+
+    srcItem.data = src->data;
+    srcItem.len = len;
+
+    DSAU_ConvertUnsignedToSigned(&sig.r, &srcItem);
+    srcItem.data += len;
+    DSAU_ConvertUnsignedToSigned(&sig.s, &srcItem);
+
+    item = SEC_ASN1EncodeItem(NULL, dest, &sig, DSA_SignatureTemplate);
+    if (signedR)
+        PORT_Free(signedR);
+    if (signedS)
+        PORT_Free(signedS);
+    if (item == NULL)
+        return SECFailure;
+
+    /* XXX leak item? */
+    return SECSuccess;
+}
+
+/* src is a DER-encoded ECDSA or DSA signature.
+** Returns a newly-allocated SECItem structure, pointing at a newly allocated
+** buffer containing the "raw" signature, which is len bytes of r,
+** followed by len bytes of s. For DSA, len is the length of q.
+** For ECDSA, len depends on the key size used to create the signature.
+*/
+static SECItem *
+common_DecodeDerSig(const SECItem *item, unsigned int len)
+{
+    SECItem *result = NULL;
+    PORTCheapArenaPool arena;
+    SECStatus status;
+    DSA_ASN1Signature sig;
+    SECItem dst;
+
+    PORT_Memset(&sig, 0, sizeof(sig));
+
+    /* Make enough room for r + s. */
+    PORT_InitCheapArena(&arena, PR_MAX(2 * MAX_ECKEY_LEN, DSA_MAX_SIGNATURE_LEN));
+
+    result = PORT_ZNew(SECItem);
+    if (result == NULL)
+        goto loser;
+
+    result->len = 2 * len;
+    result->data = (unsigned char *)PORT_Alloc(2 * len);
+    if (result->data == NULL)
+        goto loser;
+
+    sig.r.type = siUnsignedInteger;
+    sig.s.type = siUnsignedInteger;
+    status = SEC_QuickDERDecodeItem(&arena.arena, &sig, DSA_SignatureTemplate, item);
+    if (status != SECSuccess)
+        goto loser;
+
+    /* Convert sig.r and sig.s from variable  length signed integers to
+    ** fixed length unsigned integers.
+    */
+    dst.data = result->data;
+    dst.len = len;
+    status = DSAU_ConvertSignedToFixedUnsigned(&dst, &sig.r);
+    if (status != SECSuccess)
+        goto loser;
+
+    dst.data += len;
+    status = DSAU_ConvertSignedToFixedUnsigned(&dst, &sig.s);
+    if (status != SECSuccess)
+        goto loser;
+
+done:
+    PORT_DestroyCheapArena(&arena);
+
+    return result;
+
+loser:
+    if (result != NULL) {
+        SECITEM_FreeItem(result, PR_TRUE);
+        result = NULL;
+    }
+    goto done;
+}
+
+/* src is a "raw" DSA1 signature, 20 bytes of r followed by 20 bytes of s.
+** dest is the signature DER encoded. ?
+*/
+SECStatus
+DSAU_EncodeDerSig(SECItem *dest, SECItem *src)
+{
+    PORT_Assert(src->len == 2 * DSA1_SUBPRIME_LEN);
+    if (src->len != 2 * DSA1_SUBPRIME_LEN) {
+        PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
+        return SECFailure;
+    }
+
+    return common_EncodeDerSig(dest, src);
+}
+
+/* src is a "raw" DSA signature of length len (len/2 bytes of r followed
+** by len/2 bytes of s). dest is the signature DER encoded.
+*/
+SECStatus
+DSAU_EncodeDerSigWithLen(SECItem *dest, SECItem *src, unsigned int len)
+{
+
+    PORT_Assert((src->len == len) && (len % 2 == 0));
+    if ((src->len != len) || (src->len % 2 != 0)) {
+        PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
+        return SECFailure;
+    }
+
+    return common_EncodeDerSig(dest, src);
+}
+
+/* src is a DER-encoded DSA signature.
+** Returns a newly-allocated SECItem structure, pointing at a newly allocated
+** buffer containing the "raw" DSA1 signature, which is 20 bytes of r,
+** followed by 20 bytes of s.
+*/
+SECItem *
+DSAU_DecodeDerSig(const SECItem *item)
+{
+    return common_DecodeDerSig(item, DSA1_SUBPRIME_LEN);
+}
+
+/* src is a DER-encoded ECDSA signature.
+** Returns a newly-allocated SECItem structure, pointing at a newly allocated
+** buffer containing the "raw" ECDSA signature of length len containing
+** r followed by s (both padded to take up exactly len/2 bytes).
+*/
+SECItem *
+DSAU_DecodeDerSigToLen(const SECItem *item, unsigned int len)
+{
+    return common_DecodeDerSig(item, len / 2);
+}
diff --git a/security/nss/lib/cryptohi/exports.gyp b/security/nss/lib/cryptohi/exports.gyp
new file mode 100644
index 0000000000..bb910592ca
--- /dev/null
+++ b/security/nss/lib/cryptohi/exports.gyp
@@ -0,0 +1,37 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+{
+  'includes': [
+    '../../coreconf/config.gypi'
+  ],
+  'variables': {
+    'module': 'nss'
+  },
+  'targets': [
+    {
+      'target_name': 'lib_cryptohi_exports',
+      'type': 'none',
+      'copies': [
+        {
+          'files': [
+            'cryptohi.h',
+            'cryptoht.h',
+            'key.h',
+            'keyhi.h',
+            'keyt.h',
+            'keythi.h',
+            'sechash.h'
+          ],
+          'destination': '<(nss_public_dist_dir)/<(module)'
+        },
+        {
+          'files': [
+            'keyi.h',
+          ],
+          'destination': '<(nss_private_dist_dir)/<(module)'
+        }
+      ]
+    }
+  ],
+}
diff --git a/security/nss/lib/cryptohi/key.h b/security/nss/lib/cryptohi/key.h
new file mode 100644
index 0000000000..8392031c5a
--- /dev/null
+++ b/security/nss/lib/cryptohi/key.h
@@ -0,0 +1,14 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _KEY_H_
+#define _KEY_H_
+
+#if defined(_MSC_VER) || defined(__GNUC__) || defined(__clang__)
+#pragma message("key.h is deprecated. Please include keyhi.h instead.")
+#endif
+
+#include "keyhi.h"
+
+#endif /* _KEY_H_ */
diff --git a/security/nss/lib/cryptohi/keyhi.h b/security/nss/lib/cryptohi/keyhi.h
new file mode 100644
index 0000000000..173dbda903
--- /dev/null
+++ b/security/nss/lib/cryptohi/keyhi.h
@@ -0,0 +1,276 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _KEYHI_H_
+#define _KEYHI_H_
+
+#include "plarena.h"
+
+#include "seccomon.h"
+#include "secoidt.h"
+#include "secdert.h"
+#include "keythi.h"
+#include "certt.h"
+/*#include "secpkcs5.h" */
+
+SEC_BEGIN_PROTOS
+
+/*
+** Destroy a subject-public-key-info object.
+*/
+extern void SECKEY_DestroySubjectPublicKeyInfo(CERTSubjectPublicKeyInfo *spki);
+
+/*
+** Copy subject-public-key-info "src" to "dst". "dst" is filled in
+** appropriately (memory is allocated for each of the sub objects).
+*/
+extern SECStatus SECKEY_CopySubjectPublicKeyInfo(PLArenaPool *arena,
+                                                 CERTSubjectPublicKeyInfo *dst,
+                                                 CERTSubjectPublicKeyInfo *src);
+
+/*
+** Update the PQG parameters for a cert's public key.
+** Only done for DSA certs
+*/
+extern SECStatus
+SECKEY_UpdateCertPQG(CERTCertificate *subjectCert);
+
+/*
+** Return the number of bits in the provided big integer.  This assumes that the
+** SECItem contains a big-endian number and counts from the first non-zero bit.
+*/
+extern unsigned SECKEY_BigIntegerBitLength(const SECItem *number);
+
+/*
+** Return the strength of the public key in bytes
+*/
+extern unsigned SECKEY_PublicKeyStrength(const SECKEYPublicKey *pubk);
+
+/*
+** Return the strength of the public key in bits
+*/
+extern unsigned SECKEY_PublicKeyStrengthInBits(const SECKEYPublicKey *pubk);
+
+/*
+** Return the strength of the private key in bits
+*/
+extern unsigned SECKEY_PrivateKeyStrengthInBits(const SECKEYPrivateKey *privk);
+
+/*
+** Return the length of the signature in bytes
+*/
+extern unsigned SECKEY_SignatureLen(const SECKEYPublicKey *pubk);
+
+/*
+** Make a copy of the private key "privKey"
+*/
+extern SECKEYPrivateKey *SECKEY_CopyPrivateKey(const SECKEYPrivateKey *privKey);
+
+/*
+** Make a copy of the public key "pubKey"
+*/
+extern SECKEYPublicKey *SECKEY_CopyPublicKey(const SECKEYPublicKey *pubKey);
+
+/*
+** Convert a private key "privateKey" into a public key
+*/
+extern SECKEYPublicKey *SECKEY_ConvertToPublicKey(SECKEYPrivateKey *privateKey);
+
+/*
+ * create a new RSA key pair. The private Key is returned...
+ */
+SECKEYPrivateKey *SECKEY_CreateRSAPrivateKey(int keySizeInBits,
+                                             SECKEYPublicKey **pubk, void *cx);
+
+/*
+ * create a new DH key pair. The private Key is returned...
+ */
+SECKEYPrivateKey *SECKEY_CreateDHPrivateKey(SECKEYDHParams *param,
+                                            SECKEYPublicKey **pubk, void *cx);
+
+/*
+ * create a new EC key pair. The private Key is returned...
+ */
+SECKEYPrivateKey *SECKEY_CreateECPrivateKey(SECKEYECParams *param,
+                                            SECKEYPublicKey **pubk, void *cx);
+
+/*
+** Create a subject-public-key-info based on a public key.
+*/
+extern CERTSubjectPublicKeyInfo *
+SECKEY_CreateSubjectPublicKeyInfo(const SECKEYPublicKey *k);
+
+/*
+** Convert a base64 ascii encoded DER public key and challenge to spki,
+** and verify the signature and challenge data are correct
+*/
+extern CERTSubjectPublicKeyInfo *
+SECKEY_ConvertAndDecodePublicKeyAndChallenge(char *pkacstr, char *challenge,
+                                             void *cx);
+
+/*
+** Encode a  CERTSubjectPublicKeyInfo structure. into a
+** DER encoded subject public key info.
+*/
+SECItem *
+SECKEY_EncodeDERSubjectPublicKeyInfo(const SECKEYPublicKey *pubk);
+
+/*
+** Decode a DER encoded subject public key info into a
+** CERTSubjectPublicKeyInfo structure.
+*/
+extern CERTSubjectPublicKeyInfo *
+SECKEY_DecodeDERSubjectPublicKeyInfo(const SECItem *spkider);
+
+/*
+** Convert a base64 ascii encoded DER subject public key info to our
+** internal format.
+*/
+extern CERTSubjectPublicKeyInfo *
+SECKEY_ConvertAndDecodeSubjectPublicKeyInfo(const char *spkistr);
+
+/*
+ * extract the public key from a subject Public Key info structure.
+ * (used by JSS).
+ */
+extern SECKEYPublicKey *
+SECKEY_ExtractPublicKey(const CERTSubjectPublicKeyInfo *);
+
+/*
+** Destroy a private key object.
+**	"key" the object
+*/
+extern void SECKEY_DestroyPrivateKey(SECKEYPrivateKey *key);
+
+/*
+** Destroy a public key object.
+**	"key" the object
+*/
+extern void SECKEY_DestroyPublicKey(SECKEYPublicKey *key);
+
+/* Destroy and zero out a private key info structure.  for now this
+ * function zero's out memory allocated in an arena for the key
+ * since PORT_FreeArena does not currently do this.
+ *
+ * NOTE -- If a private key info is allocated in an arena, one should
+ * not call this function with freeit = PR_FALSE.  The function should
+ * destroy the arena.
+ */
+extern void
+SECKEY_DestroyPrivateKeyInfo(SECKEYPrivateKeyInfo *pvk, PRBool freeit);
+
+/* Destroy and zero out an encrypted private key info.
+ *
+ * NOTE -- If a encrypted private key info is allocated in an arena, one should
+ * not call this function with freeit = PR_FALSE.  The function should
+ * destroy the arena.
+ */
+extern void
+SECKEY_DestroyEncryptedPrivateKeyInfo(SECKEYEncryptedPrivateKeyInfo *epki,
+                                      PRBool freeit);
+
+/* Copy private key info structure.
+ *  poolp is the arena into which the contents of from is to be copied.
+ *	NULL is a valid entry.
+ *  to is the destination private key info
+ *  from is the source private key info
+ * if either from or to is NULL or an error occurs, SECFailure is
+ * returned.  otherwise, SECSuccess is returned.
+ */
+extern SECStatus
+SECKEY_CopyPrivateKeyInfo(PLArenaPool *poolp,
+                          SECKEYPrivateKeyInfo *to,
+                          const SECKEYPrivateKeyInfo *from);
+
+extern SECStatus
+SECKEY_CacheStaticFlags(SECKEYPrivateKey *key);
+
+/* Copy encrypted private key info structure.
+ *  poolp is the arena into which the contents of from is to be copied.
+ *	NULL is a valid entry.
+ *  to is the destination encrypted private key info
+ *  from is the source encrypted private key info
+ * if either from or to is NULL or an error occurs, SECFailure is
+ * returned.  otherwise, SECSuccess is returned.
+ */
+extern SECStatus
+SECKEY_CopyEncryptedPrivateKeyInfo(PLArenaPool *poolp,
+                                   SECKEYEncryptedPrivateKeyInfo *to,
+                                   const SECKEYEncryptedPrivateKeyInfo *from);
+/*
+ * Accessor functions for key type of public and private keys.
+ */
+KeyType SECKEY_GetPrivateKeyType(const SECKEYPrivateKey *privKey);
+KeyType SECKEY_GetPublicKeyType(const SECKEYPublicKey *pubKey);
+
+/*
+ * Creates a PublicKey from its DER encoding.
+ * Currently only supports RSA, DSA, and DH keys.
+ */
+SECKEYPublicKey *
+SECKEY_ImportDERPublicKey(const SECItem *derKey, CK_KEY_TYPE type);
+
+SECKEYPrivateKeyList *
+SECKEY_NewPrivateKeyList(void);
+
+void
+SECKEY_DestroyPrivateKeyList(SECKEYPrivateKeyList *keys);
+
+void
+SECKEY_RemovePrivateKeyListNode(SECKEYPrivateKeyListNode *node);
+
+SECStatus
+SECKEY_AddPrivateKeyToListTail(SECKEYPrivateKeyList *list,
+                               SECKEYPrivateKey *key);
+
+#define PRIVKEY_LIST_HEAD(l) ((SECKEYPrivateKeyListNode *)PR_LIST_HEAD(&l->list))
+#define PRIVKEY_LIST_NEXT(n) ((SECKEYPrivateKeyListNode *)n->links.next)
+#define PRIVKEY_LIST_END(n, l) (((void *)n) == ((void *)&l->list))
+
+SECKEYPublicKeyList *
+SECKEY_NewPublicKeyList(void);
+
+void
+SECKEY_DestroyPublicKeyList(SECKEYPublicKeyList *keys);
+
+void
+SECKEY_RemovePublicKeyListNode(SECKEYPublicKeyListNode *node);
+
+SECStatus
+SECKEY_AddPublicKeyToListTail(SECKEYPublicKeyList *list,
+                              SECKEYPublicKey *key);
+
+#define PUBKEY_LIST_HEAD(l) ((SECKEYPublicKeyListNode *)PR_LIST_HEAD(&l->list))
+#define PUBKEY_LIST_NEXT(n) ((SECKEYPublicKeyListNode *)n->links.next)
+#define PUBKEY_LIST_END(n, l) (((void *)n) == ((void *)&l->list))
+
+/*
+ * Length in bits of the EC's field size.  This is also the length of
+ * the x and y coordinates of EC points, such as EC public keys and
+ * base points.
+ *
+ * Return 0 on failure (unknown EC domain parameters).
+ */
+extern int SECKEY_ECParamsToKeySize(const SECItem *params);
+
+/*
+ * Length in bits of the EC base point order, usually denoted n.  This
+ * is also the length of EC private keys and ECDSA signature components
+ * r and s.
+ *
+ * Return 0 on failure (unknown EC domain parameters).
+ */
+extern int SECKEY_ECParamsToBasePointOrderLen(const SECItem *params);
+
+/*
+ * Returns the object identifier of the curve, of the provided
+ * elliptic curve parameters structures.
+ *
+ * Return 0 on failure (unknown EC domain parameters).
+ */
+SECOidTag SECKEY_GetECCOid(const SECKEYECParams *params);
+
+SEC_END_PROTOS
+
+#endif /* _KEYHI_H_ */
diff --git a/security/nss/lib/cryptohi/keyi.h b/security/nss/lib/cryptohi/keyi.h
new file mode 100644
index 0000000000..5683afbeb6
--- /dev/null
+++ b/security/nss/lib/cryptohi/keyi.h
@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _KEYI_H_
+#define _KEYI_H_
+#include "secerr.h"
+
+SEC_BEGIN_PROTOS
+/* NSS private functions */
+/* map an oid to a keytype... actually this function and it's converse
+ *  are good candidates for public functions..  */
+KeyType seckey_GetKeyType(SECOidTag pubKeyOid);
+
+/* extract the 'encryption' (could be signing) and hash oids from and
+ * algorithm, key and parameters (parameters is the parameters field
+ * of a algorithm ID structure (SECAlgorithmID)*/
+SECStatus sec_DecodeSigAlg(const SECKEYPublicKey *key, SECOidTag sigAlg,
+                           const SECItem *param, SECOidTag *encalg, SECOidTag *hashalg);
+
+/* just get the 'encryption' oid from the combined signature oid */
+SECOidTag sec_GetEncAlgFromSigAlg(SECOidTag sigAlg);
+
+/* extract the RSA-PSS hash algorithms and salt length from
+ * parameters, taking into account of the default implications.
+ *
+ * (parameters is the parameters field of a algorithm ID structure
+ * (SECAlgorithmID)*/
+SECStatus sec_DecodeRSAPSSParams(PLArenaPool *arena,
+                                 const SECItem *params,
+                                 SECOidTag *hashAlg,
+                                 SECOidTag *maskHashAlg,
+                                 unsigned long *saltLength);
+
+/* convert the encoded RSA-PSS parameters into PKCS #11 mechanism parameters */
+SECStatus sec_DecodeRSAPSSParamsToMechanism(PLArenaPool *arena,
+                                            const SECItem *params,
+                                            CK_RSA_PKCS_PSS_PARAMS *mech);
+
+/* make sure the key length matches the policy for keyType */
+SECStatus seckey_EnforceKeySize(KeyType keyType, unsigned keyLength,
+                                SECErrorCodes error);
+SEC_END_PROTOS
+
+#endif /* _KEYHI_H_ */
diff --git a/security/nss/lib/cryptohi/keyt.h b/security/nss/lib/cryptohi/keyt.h
new file mode 100644
index 0000000000..5a0d2c2e7c
--- /dev/null
+++ b/security/nss/lib/cryptohi/keyt.h
@@ -0,0 +1,14 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _KEYT_H_
+#define _KEYT_H_
+
+#if defined(_MSC_VER) || defined(__GNUC__) || defined(__clang__)
+#pragma message("keyt.h is deprecated. Please include keythi.h instead.")
+#endif
+
+#include "keythi.h"
+
+#endif /* _KEYT_H_ */
diff --git a/security/nss/lib/cryptohi/keythi.h b/security/nss/lib/cryptohi/keythi.h
new file mode 100644
index 0000000000..1dd8a557c5
--- /dev/null
+++ b/security/nss/lib/cryptohi/keythi.h
@@ -0,0 +1,260 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef _KEYTHI_H_
+#define _KEYTHI_H_ 1
+
+#include "eccutil.h"
+#include "kyber.h"
+#include "plarena.h"
+#include "pkcs11t.h"
+#include "secmodt.h"
+#include "prclist.h"
+
+/*
+** RFC 4055 Section 1.2 specifies three different RSA key types.
+**
+** rsaKey maps to keys with SEC_OID_PKCS1_RSA_ENCRYPTION and can be used for
+** both encryption and signatures with old (PKCS #1 v1.5) and new (PKCS #1
+** v2.1) padding schemes.
+**
+** rsaPssKey maps to keys with SEC_OID_PKCS1_RSA_PSS_SIGNATURE and may only
+** be used for signatures with PSS padding (PKCS #1 v2.1).
+**
+** rsaOaepKey maps to keys with SEC_OID_PKCS1_RSA_OAEP_ENCRYPTION and may only
+** be used for encryption with OAEP padding (PKCS #1 v2.1).
+*/
+
+typedef enum {
+    nullKey = 0,
+    rsaKey = 1,
+    dsaKey = 2,
+    fortezzaKey = 3, /* deprecated */
+    dhKey = 4,
+    keaKey = 5, /* deprecated */
+    ecKey = 6,
+    rsaPssKey = 7,
+    rsaOaepKey = 8,
+    kyberKey = 9,
+} KeyType;
+
+/*
+** Template Definitions
+**/
+
+SEC_BEGIN_PROTOS
+extern const SEC_ASN1Template SECKEY_RSAPublicKeyTemplate[];
+extern const SEC_ASN1Template SECKEY_RSAPSSParamsTemplate[];
+extern const SEC_ASN1Template SECKEY_DSAPublicKeyTemplate[];
+extern const SEC_ASN1Template SECKEY_DHPublicKeyTemplate[];
+extern const SEC_ASN1Template SECKEY_DHParamKeyTemplate[];
+extern const SEC_ASN1Template SECKEY_PQGParamsTemplate[];
+extern const SEC_ASN1Template SECKEY_DSAPrivateKeyExportTemplate[];
+
+/* Windows DLL accessor functions */
+SEC_ASN1_CHOOSER_DECLARE(SECKEY_DSAPublicKeyTemplate)
+SEC_ASN1_CHOOSER_DECLARE(SECKEY_RSAPublicKeyTemplate)
+SEC_ASN1_CHOOSER_DECLARE(SECKEY_RSAPSSParamsTemplate)
+SEC_END_PROTOS
+
+/*
+** RSA Public Key structures
+** member names from PKCS#1, section 7.1
+*/
+
+struct SECKEYRSAPublicKeyStr {
+    PLArenaPool *arena;
+    SECItem modulus;
+    SECItem publicExponent;
+};
+typedef struct SECKEYRSAPublicKeyStr SECKEYRSAPublicKey;
+
+/*
+** RSA-PSS parameters
+*/
+struct SECKEYRSAPSSParamsStr {
+    SECAlgorithmID *hashAlg;
+    SECAlgorithmID *maskAlg;
+    SECItem saltLength;
+    SECItem trailerField;
+};
+typedef struct SECKEYRSAPSSParamsStr SECKEYRSAPSSParams;
+
+/*
+** DSA Public Key and related structures
+*/
+
+struct SECKEYPQGParamsStr {
+    PLArenaPool *arena;
+    SECItem prime;    /* p */
+    SECItem subPrime; /* q */
+    SECItem base;     /* g */
+    /* XXX chrisk: this needs to be expanded to hold j and validationParms (RFC2459 7.3.2) */
+};
+typedef struct SECKEYPQGParamsStr SECKEYPQGParams;
+
+struct SECKEYDSAPublicKeyStr {
+    SECKEYPQGParams params;
+    SECItem publicValue;
+};
+typedef struct SECKEYDSAPublicKeyStr SECKEYDSAPublicKey;
+
+/*
+** Diffie-Hellman Public Key structure
+** Structure member names suggested by PKCS#3.
+*/
+struct SECKEYDHParamsStr {
+    PLArenaPool *arena;
+    SECItem prime; /* p */
+    SECItem base;  /* g */
+};
+typedef struct SECKEYDHParamsStr SECKEYDHParams;
+
+struct SECKEYDHPublicKeyStr {
+    PLArenaPool *arena;
+    SECItem prime;
+    SECItem base;
+    SECItem publicValue;
+};
+typedef struct SECKEYDHPublicKeyStr SECKEYDHPublicKey;
+
+/*
+** Elliptic curve Public Key structure
+** The PKCS#11 layer needs DER encoding of ANSI X9.62
+** parameters value
+*/
+typedef SECItem SECKEYECParams;
+
+struct SECKEYECPublicKeyStr {
+    SECKEYECParams DEREncodedParams;
+    int size;                 /* size in bits */
+    SECItem publicValue;      /* encoded point */
+    ECPointEncoding encoding; /* deprecated, ignored */
+};
+typedef struct SECKEYECPublicKeyStr SECKEYECPublicKey;
+
+/*
+** FORTEZZA Public Key structures
+*/
+struct SECKEYFortezzaPublicKeyStr {
+    int KEAversion;
+    int DSSversion;
+    unsigned char KMID[8];
+    SECItem clearance;
+    SECItem KEApriviledge;
+    SECItem DSSpriviledge;
+    SECItem KEAKey;
+    SECItem DSSKey;
+    SECKEYPQGParams params;
+    SECKEYPQGParams keaParams;
+};
+typedef struct SECKEYFortezzaPublicKeyStr SECKEYFortezzaPublicKey;
+#define KEAprivilege KEApriviledge /* corrected spelling */
+#define DSSprivilege DSSpriviledge /* corrected spelling */
+
+struct SECKEYDiffPQGParamsStr {
+    SECKEYPQGParams DiffKEAParams;
+    SECKEYPQGParams DiffDSAParams;
+};
+typedef struct SECKEYDiffPQGParamsStr SECKEYDiffPQGParams;
+
+struct SECKEYPQGDualParamsStr {
+    SECKEYPQGParams CommParams;
+    SECKEYDiffPQGParams DiffParams;
+};
+typedef struct SECKEYPQGDualParamsStr SECKEYPQGDualParams;
+
+struct SECKEYKEAParamsStr {
+    PLArenaPool *arena;
+    SECItem hash;
+};
+typedef struct SECKEYKEAParamsStr SECKEYKEAParams;
+
+struct SECKEYKEAPublicKeyStr {
+    SECKEYKEAParams params;
+    SECItem publicValue;
+};
+typedef struct SECKEYKEAPublicKeyStr SECKEYKEAPublicKey;
+
+/*
+** Kyber Public Key structure
+*/
+
+struct SECKEYKyberPublicKeyStr {
+    KyberParams params;
+    SECItem publicValue;
+};
+typedef struct SECKEYKyberPublicKeyStr SECKEYKyberPublicKey;
+
+/*
+** A Generic  public key object.
+*/
+struct SECKEYPublicKeyStr {
+    PLArenaPool *arena;
+    KeyType keyType;
+    PK11SlotInfo *pkcs11Slot;
+    CK_OBJECT_HANDLE pkcs11ID;
+    union {
+        SECKEYRSAPublicKey rsa;
+        SECKEYDSAPublicKey dsa;
+        SECKEYDHPublicKey dh;
+        SECKEYKEAPublicKey kea;
+        SECKEYFortezzaPublicKey fortezza;
+        SECKEYECPublicKey ec;
+        SECKEYKyberPublicKey kyber;
+    } u;
+};
+typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
+
+/* bit flag definitions for staticflags */
+#define SECKEY_Attributes_Cached 0x1 /* bit 0 states \
+                                        whether attributes are cached */
+#define SECKEY_CKA_PRIVATE (1U << 1) /* bit 1 is the value of CKA_PRIVATE */
+#define SECKEY_CKA_ALWAYS_AUTHENTICATE (1U << 2)
+
+#define SECKEY_ATTRIBUTES_CACHED(key) \
+    (0 != (key->staticflags & SECKEY_Attributes_Cached))
+
+#define SECKEY_ATTRIBUTE_VALUE(key, attribute) \
+    (0 != (key->staticflags & SECKEY_##attribute))
+
+#define SECKEY_HAS_ATTRIBUTE_SET(key, attribute) \
+    (0 != (key->staticflags & SECKEY_Attributes_Cached)) ? (0 != (key->staticflags & SECKEY_##attribute)) : PK11_HasAttributeSet(key->pkcs11Slot, key->pkcs11ID, attribute, PR_FALSE)
+
+#define SECKEY_HAS_ATTRIBUTE_SET_LOCK(key, attribute, haslock) \
+    (0 != (key->staticflags & SECKEY_Attributes_Cached)) ? (0 != (key->staticflags & SECKEY_##attribute)) : pk11_HasAttributeSet_Lock(key->pkcs11Slot, key->pkcs11ID, attribute, haslock)
+
+/*
+** A generic key structure
+*/
+struct SECKEYPrivateKeyStr {
+    PLArenaPool *arena;
+    KeyType keyType;
+    PK11SlotInfo *pkcs11Slot;  /* pkcs11 slot this key lives in */
+    CK_OBJECT_HANDLE pkcs11ID; /* ID of pkcs11 object */
+    PRBool pkcs11IsTemp;       /* temp pkcs11 object, delete it when done */
+    void *wincx;               /* context for errors and pw prompts */
+    PRUint32 staticflags;      /* bit flag of cached PKCS#11 attributes */
+};
+typedef struct SECKEYPrivateKeyStr SECKEYPrivateKey;
+
+typedef struct {
+    PRCList links;
+    SECKEYPrivateKey *key;
+} SECKEYPrivateKeyListNode;
+
+typedef struct {
+    PRCList list;
+    PLArenaPool *arena;
+} SECKEYPrivateKeyList;
+
+typedef struct {
+    PRCList links;
+    SECKEYPublicKey *key;
+} SECKEYPublicKeyListNode;
+
+typedef struct {
+    PRCList list;
+    PLArenaPool *arena;
+} SECKEYPublicKeyList;
+#endif /* _KEYTHI_H_ */
diff --git a/security/nss/lib/cryptohi/manifest.mn b/security/nss/lib/cryptohi/manifest.mn
new file mode 100644
index 0000000000..6b1a546dd3
--- /dev/null
+++ b/security/nss/lib/cryptohi/manifest.mn
@@ -0,0 +1,37 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+CORE_DEPTH = ../..
+
+MODULE = nss
+
+REQUIRES = nssutil
+
+LIBRARY_NAME = cryptohi
+SHARED_LIBRARY = $(NULL)
+
+EXPORTS = \
+	cryptohi.h \
+	cryptoht.h \
+	key.h     \
+	keyhi.h   \
+	keyt.h    \
+	keythi.h  \
+	sechash.h \
+	$(NULL)
+
+PRIVATE_EXPORTS = \
+	keyi.h    \
+	$(NULL)
+
+CSRCS = \
+	sechash.c \
+	seckey.c  \
+	secsign.c \
+	secvfy.c  \
+	dsautil.c \
+	$(NULL)
+
+# This part of the code, including all sub-dirs, can be optimized for size
+export ALLOW_OPT_CODE_SIZE = 1
diff --git a/security/nss/lib/cryptohi/sechash.c b/security/nss/lib/cryptohi/sechash.c
new file mode 100644
index 0000000000..5c592dfb21
--- /dev/null
+++ b/security/nss/lib/cryptohi/sechash.c
@@ -0,0 +1,583 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "sechash.h"
+#include "secoidt.h"
+#include "secerr.h"
+#include "blapi.h"
+#include "pk11func.h" /* for the PK11_ calls below. */
+
+static void *
+null_hash_new_context(void)
+{
+    return NULL;
+}
+
+static void *
+null_hash_clone_context(void *v)
+{
+    PORT_Assert(v == NULL);
+    return NULL;
+}
+
+static void
+null_hash_begin(void *v)
+{
+}
+
+static void
+null_hash_update(void *v, const unsigned char *input, unsigned int length)
+{
+}
+
+static void
+null_hash_end(void *v, unsigned char *output, unsigned int *outLen,
+              unsigned int maxOut)
+{
+    *outLen = 0;
+}
+
+static void
+null_hash_destroy_context(void *v, PRBool b)
+{
+    PORT_Assert(v == NULL);
+}
+
+static void *
+md2_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_MD2);
+}
+
+static void *
+md5_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_MD5);
+}
+
+static void *
+sha1_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA1);
+}
+
+static void *
+sha224_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA224);
+}
+
+static void *
+sha256_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA256);
+}
+
+static void *
+sha384_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA384);
+}
+
+static void *
+sha512_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA512);
+}
+
+static void *
+sha3_224_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA3_224);
+}
+
+static void *
+sha3_256_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA3_256);
+}
+
+static void *
+sha3_384_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA3_384);
+}
+
+static void *
+sha3_512_NewContext(void)
+{
+    return (void *)PK11_CreateDigestContext(SEC_OID_SHA3_512);
+}
+
+const SECHashObject SECHashObjects[] = {
+    { 0,
+      (void *(*)(void))null_hash_new_context,
+      (void *(*)(void *))null_hash_clone_context,
+      (void (*)(void *, PRBool))null_hash_destroy_context,
+      (void (*)(void *))null_hash_begin,
+      (void (*)(void *, const unsigned char *, unsigned int))null_hash_update,
+      (void (*)(void *, unsigned char *, unsigned int *,
+                unsigned int))null_hash_end,
+      0,
+      HASH_AlgNULL },
+    { MD2_LENGTH,
+      (void *(*)(void))md2_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      MD2_BLOCK_LENGTH,
+      HASH_AlgMD2 },
+    { MD5_LENGTH,
+      (void *(*)(void))md5_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      MD5_BLOCK_LENGTH,
+      HASH_AlgMD5 },
+    { SHA1_LENGTH,
+      (void *(*)(void))sha1_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA1_BLOCK_LENGTH,
+      HASH_AlgSHA1 },
+    { SHA256_LENGTH,
+      (void *(*)(void))sha256_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA256_BLOCK_LENGTH,
+      HASH_AlgSHA256 },
+    { SHA384_LENGTH,
+      (void *(*)(void))sha384_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA384_BLOCK_LENGTH,
+      HASH_AlgSHA384 },
+    { SHA512_LENGTH,
+      (void *(*)(void))sha512_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA512_BLOCK_LENGTH,
+      HASH_AlgSHA512 },
+    { SHA224_LENGTH,
+      (void *(*)(void))sha224_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA224_BLOCK_LENGTH,
+      HASH_AlgSHA224 },
+    { SHA3_224_LENGTH,
+      (void *(*)(void))sha3_224_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA3_224_BLOCK_LENGTH,
+      HASH_AlgSHA3_224 },
+    { SHA3_256_LENGTH,
+      (void *(*)(void))sha3_256_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA3_256_BLOCK_LENGTH,
+      HASH_AlgSHA3_256 },
+    { SHA3_384_LENGTH,
+      (void *(*)(void))sha3_384_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA3_384_BLOCK_LENGTH,
+      HASH_AlgSHA3_384 },
+    { SHA3_512_LENGTH,
+      (void *(*)(void))sha3_512_NewContext,
+      (void *(*)(void *))PK11_CloneContext,
+      (void (*)(void *, PRBool))PK11_DestroyContext,
+      (void (*)(void *))PK11_DigestBegin,
+      (void (*)(void *, const unsigned char *, unsigned int))PK11_DigestOp,
+      (void (*)(void *, unsigned char *, unsigned int *, unsigned int))
+          PK11_DigestFinal,
+      SHA3_512_BLOCK_LENGTH,
+      HASH_AlgSHA3_512 },
+};
+
+const SECHashObject *
+HASH_GetHashObject(HASH_HashType type)
+{
+    return &SECHashObjects[type];
+}
+
+HASH_HashType
+HASH_GetHashTypeByOidTag(SECOidTag hashOid)
+{
+    HASH_HashType ht = HASH_AlgNULL;
+
+    switch (hashOid) {
+        case SEC_OID_MD2:
+            ht = HASH_AlgMD2;
+            break;
+        case SEC_OID_MD5:
+            ht = HASH_AlgMD5;
+            break;
+        case SEC_OID_SHA1:
+            ht = HASH_AlgSHA1;
+            break;
+        case SEC_OID_SHA224:
+            ht = HASH_AlgSHA224;
+            break;
+        case SEC_OID_SHA256:
+            ht = HASH_AlgSHA256;
+            break;
+        case SEC_OID_SHA384:
+            ht = HASH_AlgSHA384;
+            break;
+        case SEC_OID_SHA512:
+            ht = HASH_AlgSHA512;
+            break;
+        case SEC_OID_SHA3_224:
+            ht = HASH_AlgSHA3_224;
+            break;
+        case SEC_OID_SHA3_256:
+            ht = HASH_AlgSHA3_256;
+            break;
+        case SEC_OID_SHA3_384:
+            ht = HASH_AlgSHA3_384;
+            break;
+        case SEC_OID_SHA3_512:
+            ht = HASH_AlgSHA3_512;
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return ht;
+}
+
+SECOidTag
+HASH_GetHashOidTagByHashType(HASH_HashType type)
+{
+    SECOidTag oid = SEC_OID_UNKNOWN;
+
+    switch (type) {
+        case HASH_AlgMD2:
+            oid = SEC_OID_MD2;
+            break;
+        case HASH_AlgMD5:
+            oid = SEC_OID_MD5;
+            break;
+        case HASH_AlgSHA1:
+            oid = SEC_OID_SHA1;
+            break;
+        case HASH_AlgSHA224:
+            oid = SEC_OID_SHA224;
+            break;
+        case HASH_AlgSHA256:
+            oid = SEC_OID_SHA256;
+            break;
+        case HASH_AlgSHA384:
+            oid = SEC_OID_SHA384;
+            break;
+        case HASH_AlgSHA512:
+            oid = SEC_OID_SHA512;
+            break;
+        case HASH_AlgSHA3_224:
+            oid = SEC_OID_SHA3_224;
+            break;
+        case HASH_AlgSHA3_256:
+            oid = SEC_OID_SHA3_256;
+            break;
+        case HASH_AlgSHA3_384:
+            oid = SEC_OID_SHA3_384;
+            break;
+        case HASH_AlgSHA3_512:
+            oid = SEC_OID_SHA3_512;
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return oid;
+}
+
+SECOidTag
+HASH_GetHashOidTagByHMACOidTag(SECOidTag hmacOid)
+{
+    SECOidTag hashOid = SEC_OID_UNKNOWN;
+
+    switch (hmacOid) {
+        /* no oid exists for HMAC_MD2 */
+        /* NSS does not define a oid for HMAC_MD4 */
+        case SEC_OID_HMAC_SHA1:
+            hashOid = SEC_OID_SHA1;
+            break;
+        case SEC_OID_HMAC_SHA224:
+            hashOid = SEC_OID_SHA224;
+            break;
+        case SEC_OID_HMAC_SHA256:
+            hashOid = SEC_OID_SHA256;
+            break;
+        case SEC_OID_HMAC_SHA384:
+            hashOid = SEC_OID_SHA384;
+            break;
+        case SEC_OID_HMAC_SHA512:
+            hashOid = SEC_OID_SHA512;
+            break;
+        case SEC_OID_HMAC_SHA3_224:
+            hashOid = SEC_OID_SHA3_224;
+            break;
+        case SEC_OID_HMAC_SHA3_256:
+            hashOid = SEC_OID_SHA3_256;
+            break;
+        case SEC_OID_HMAC_SHA3_384:
+            hashOid = SEC_OID_SHA3_384;
+            break;
+        case SEC_OID_HMAC_SHA3_512:
+            hashOid = SEC_OID_SHA3_512;
+            break;
+        default:
+            hashOid = SEC_OID_UNKNOWN;
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return hashOid;
+}
+
+SECOidTag
+HASH_GetHMACOidTagByHashOidTag(SECOidTag hashOid)
+{
+    SECOidTag hmacOid = SEC_OID_UNKNOWN;
+
+    switch (hashOid) {
+        /* no oid exists for HMAC_MD2 */
+        /* NSS does not define a oid for HMAC_MD4 */
+        case SEC_OID_SHA1:
+            hmacOid = SEC_OID_HMAC_SHA1;
+            break;
+        case SEC_OID_SHA224:
+            hmacOid = SEC_OID_HMAC_SHA224;
+            break;
+        case SEC_OID_SHA256:
+            hmacOid = SEC_OID_HMAC_SHA256;
+            break;
+        case SEC_OID_SHA384:
+            hmacOid = SEC_OID_HMAC_SHA384;
+            break;
+        case SEC_OID_SHA512:
+            hmacOid = SEC_OID_HMAC_SHA512;
+            break;
+        case SEC_OID_SHA3_224:
+            hmacOid = SEC_OID_HMAC_SHA3_224;
+            break;
+        case SEC_OID_SHA3_256:
+            hmacOid = SEC_OID_HMAC_SHA3_256;
+            break;
+        case SEC_OID_SHA3_384:
+            hmacOid = SEC_OID_HMAC_SHA3_384;
+            break;
+        case SEC_OID_SHA3_512:
+            hmacOid = SEC_OID_HMAC_SHA3_512;
+            break;
+        default:
+            hmacOid = SEC_OID_UNKNOWN;
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return hmacOid;
+}
+
+const SECHashObject *
+HASH_GetHashObjectByOidTag(SECOidTag hashOid)
+{
+    HASH_HashType ht = HASH_GetHashTypeByOidTag(hashOid);
+
+    return (ht == HASH_AlgNULL) ? NULL : &SECHashObjects[ht];
+}
+
+/* returns zero for unknown hash OID */
+unsigned int
+HASH_ResultLenByOidTag(SECOidTag hashOid)
+{
+    const SECHashObject *hashObject = HASH_GetHashObjectByOidTag(hashOid);
+    unsigned int resultLen = 0;
+
+    if (hashObject)
+        resultLen = hashObject->length;
+    return resultLen;
+}
+
+/* returns zero if hash type invalid. */
+unsigned int
+HASH_ResultLen(HASH_HashType type)
+{
+    if ((type < HASH_AlgNULL) || (type >= HASH_AlgTOTAL)) {
+        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+        return (0);
+    }
+
+    return (SECHashObjects[type].length);
+}
+
+unsigned int
+HASH_ResultLenContext(HASHContext *context)
+{
+    return (context->hashobj->length);
+}
+
+SECStatus
+HASH_HashBuf(HASH_HashType type,
+             unsigned char *dest,
+             const unsigned char *src,
+             PRUint32 src_len)
+{
+    HASHContext *cx;
+    unsigned int part;
+
+    if ((type < HASH_AlgNULL) || (type >= HASH_AlgTOTAL)) {
+        return (SECFailure);
+    }
+
+    cx = HASH_Create(type);
+    if (cx == NULL) {
+        return (SECFailure);
+    }
+    HASH_Begin(cx);
+    HASH_Update(cx, src, src_len);
+    HASH_End(cx, dest, &part, HASH_ResultLenContext(cx));
+    HASH_Destroy(cx);
+
+    return (SECSuccess);
+}
+
+HASHContext *
+HASH_Create(HASH_HashType type)
+{
+    void *hash_context = NULL;
+    HASHContext *ret = NULL;
+
+    if ((type < HASH_AlgNULL) || (type >= HASH_AlgTOTAL)) {
+        return (NULL);
+    }
+
+    hash_context = (*SECHashObjects[type].create)();
+    if (hash_context == NULL) {
+        goto loser;
+    }
+
+    ret = (HASHContext *)PORT_Alloc(sizeof(HASHContext));
+    if (ret == NULL) {
+        goto loser;
+    }
+
+    ret->hash_context = hash_context;
+    ret->hashobj = &SECHashObjects[type];
+
+    return (ret);
+
+loser:
+    if (hash_context != NULL) {
+        (*SECHashObjects[type].destroy)(hash_context, PR_TRUE);
+    }
+
+    return (NULL);
+}
+
+HASHContext *
+HASH_Clone(HASHContext *context)
+{
+    void *hash_context = NULL;
+    HASHContext *ret = NULL;
+
+    hash_context = (*context->hashobj->clone)(context->hash_context);
+    if (hash_context == NULL) {
+        goto loser;
+    }
+
+    ret = (HASHContext *)PORT_Alloc(sizeof(HASHContext));
+    if (ret == NULL) {
+        goto loser;
+    }
+
+    ret->hash_context = hash_context;
+    ret->hashobj = context->hashobj;
+
+    return (ret);
+
+loser:
+    if (hash_context != NULL) {
+        (*context->hashobj->destroy)(hash_context, PR_TRUE);
+    }
+
+    return (NULL);
+}
+
+void
+HASH_Destroy(HASHContext *context)
+{
+    (*context->hashobj->destroy)(context->hash_context, PR_TRUE);
+    PORT_Free(context);
+    return;
+}
+
+void
+HASH_Begin(HASHContext *context)
+{
+    (*context->hashobj->begin)(context->hash_context);
+    return;
+}
+
+void
+HASH_Update(HASHContext *context,
+            const unsigned char *src,
+            unsigned int len)
+{
+    (*context->hashobj->update)(context->hash_context, src, len);
+    return;
+}
+
+void
+HASH_End(HASHContext *context,
+         unsigned char *result,
+         unsigned int *result_len,
+         unsigned int max_result_len)
+{
+    (*context->hashobj->end)(context->hash_context, result, result_len,
+                             max_result_len);
+    return;
+}
+
+HASH_HashType
+HASH_GetType(HASHContext *context)
+{
+    return (context->hashobj->type);
+}
diff --git a/security/nss/lib/cryptohi/sechash.h b/security/nss/lib/cryptohi/sechash.h
new file mode 100644
index 0000000000..16e8b67133
--- /dev/null
+++ b/security/nss/lib/cryptohi/sechash.h
@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _HASH_H_
+#define _HASH_H_
+
+#include "seccomon.h"
+#include "hasht.h"
+#include "secoidt.h"
+
+SEC_BEGIN_PROTOS
+
+/*
+** Generic hash api.
+*/
+
+extern unsigned int HASH_ResultLen(HASH_HashType type);
+
+extern unsigned int HASH_ResultLenContext(HASHContext *context);
+
+extern unsigned int HASH_ResultLenByOidTag(SECOidTag hashOid);
+
+extern SECStatus HASH_HashBuf(HASH_HashType type,
+                              unsigned char *dest,
+                              const unsigned char *src,
+                              PRUint32 src_len);
+
+extern HASHContext *HASH_Create(HASH_HashType type);
+
+extern HASHContext *HASH_Clone(HASHContext *context);
+
+extern void HASH_Destroy(HASHContext *context);
+
+extern void HASH_Begin(HASHContext *context);
+
+extern void HASH_Update(HASHContext *context,
+                        const unsigned char *src,
+                        unsigned int len);
+
+extern void HASH_End(HASHContext *context,
+                     unsigned char *result,
+                     unsigned int *result_len,
+                     unsigned int max_result_len);
+
+extern HASH_HashType HASH_GetType(HASHContext *context);
+
+extern const SECHashObject *HASH_GetHashObject(HASH_HashType type);
+
+extern const SECHashObject *HASH_GetHashObjectByOidTag(SECOidTag hashOid);
+
+extern HASH_HashType HASH_GetHashTypeByOidTag(SECOidTag hashOid);
+extern SECOidTag HASH_GetHashOidTagByHMACOidTag(SECOidTag hmacOid);
+extern SECOidTag HASH_GetHMACOidTagByHashOidTag(SECOidTag hashOid);
+
+extern SECOidTag HASH_GetHashOidTagByHashType(HASH_HashType type);
+
+SEC_END_PROTOS
+
+#endif /* _HASH_H_ */
diff --git a/security/nss/lib/cryptohi/seckey.c b/security/nss/lib/cryptohi/seckey.c
new file mode 100644
index 0000000000..1762c1a143
--- /dev/null
+++ b/security/nss/lib/cryptohi/seckey.c
@@ -0,0 +1,2325 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "cryptohi.h"
+#include "keyhi.h"
+#include "secoid.h"
+#include "secitem.h"
+#include "secder.h"
+#include "base64.h"
+#include "secasn1.h"
+#include "cert.h"
+#include "pk11func.h"
+#include "secerr.h"
+#include "secdig.h"
+#include "prtime.h"
+#include "keyi.h"
+#include "nss.h"
+
+SEC_ASN1_MKSUB(SECOID_AlgorithmIDTemplate)
+SEC_ASN1_MKSUB(SEC_IntegerTemplate)
+
+const SEC_ASN1Template CERT_SubjectPublicKeyInfoTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(CERTSubjectPublicKeyInfo) },
+    { SEC_ASN1_INLINE | SEC_ASN1_XTRN,
+      offsetof(CERTSubjectPublicKeyInfo, algorithm),
+      SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) },
+    { SEC_ASN1_BIT_STRING,
+      offsetof(CERTSubjectPublicKeyInfo, subjectPublicKey) },
+    { 0 }
+};
+
+const SEC_ASN1Template CERT_PublicKeyAndChallengeTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CERTPublicKeyAndChallenge) },
+    { SEC_ASN1_ANY, offsetof(CERTPublicKeyAndChallenge, spki) },
+    { SEC_ASN1_IA5_STRING, offsetof(CERTPublicKeyAndChallenge, challenge) },
+    { 0 }
+};
+
+const SEC_ASN1Template SECKEY_RSAPublicKeyTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPublicKey) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.rsa.modulus) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.rsa.publicExponent) },
+    { 0 }
+};
+
+static const SEC_ASN1Template seckey_PointerToAlgorithmIDTemplate[] = {
+    { SEC_ASN1_POINTER | SEC_ASN1_XTRN, 0,
+      SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) }
+};
+
+/* Parameters for SEC_OID_PKCS1_RSA_PSS_SIGNATURE */
+const SEC_ASN1Template SECKEY_RSAPSSParamsTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYRSAPSSParams) },
+    { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
+          SEC_ASN1_CONTEXT_SPECIFIC | 0,
+      offsetof(SECKEYRSAPSSParams, hashAlg),
+      seckey_PointerToAlgorithmIDTemplate },
+    { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
+          SEC_ASN1_CONTEXT_SPECIFIC | 1,
+      offsetof(SECKEYRSAPSSParams, maskAlg),
+      seckey_PointerToAlgorithmIDTemplate },
+    { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
+          SEC_ASN1_XTRN | SEC_ASN1_CONTEXT_SPECIFIC | 2,
+      offsetof(SECKEYRSAPSSParams, saltLength),
+      SEC_ASN1_SUB(SEC_IntegerTemplate) },
+    { SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
+          SEC_ASN1_XTRN | SEC_ASN1_CONTEXT_SPECIFIC | 3,
+      offsetof(SECKEYRSAPSSParams, trailerField),
+      SEC_ASN1_SUB(SEC_IntegerTemplate) },
+    { 0 }
+};
+
+const SEC_ASN1Template SECKEY_DSAPublicKeyTemplate[] = {
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.dsa.publicValue) },
+    { 0 }
+};
+
+const SEC_ASN1Template SECKEY_PQGParamsTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPQGParams) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams, prime) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams, subPrime) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams, base) },
+    { 0 }
+};
+
+const SEC_ASN1Template SECKEY_DHPublicKeyTemplate[] = {
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.dh.publicValue) },
+    { 0 }
+};
+
+const SEC_ASN1Template SECKEY_DHParamKeyTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPublicKey) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.dh.prime) },
+    { SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey, u.dh.base) },
+    /* XXX chrisk: this needs to be expanded for decoding of j and validationParms (RFC2459 7.3.2) */
+    { SEC_ASN1_SKIP_REST },
+    { 0 }
+};
+
+SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_DSAPublicKeyTemplate)
+SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_RSAPublicKeyTemplate)
+SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_RSAPSSParamsTemplate)
+SEC_ASN1_CHOOSER_IMPLEMENT(CERT_SubjectPublicKeyInfoTemplate)
+
+/*
+ * See bugzilla bug 125359
+ * Since NSS (via PKCS#11) wants to handle big integers as unsigned ints,
+ * all of the templates above that en/decode into integers must be converted
+ * from ASN.1's signed integer type.  This is done by marking either the
+ * source or destination (encoding or decoding, respectively) type as
+ * siUnsignedInteger.
+ */
+static void
+prepare_rsa_pub_key_for_asn1(SECKEYPublicKey *pubk)
+{
+    pubk->u.rsa.modulus.type = siUnsignedInteger;
+    pubk->u.rsa.publicExponent.type = siUnsignedInteger;
+}
+
+static void
+prepare_dsa_pub_key_for_asn1(SECKEYPublicKey *pubk)
+{
+    pubk->u.dsa.publicValue.type = siUnsignedInteger;
+}
+
+static void
+prepare_pqg_params_for_asn1(SECKEYPQGParams *params)
+{
+    params->prime.type = siUnsignedInteger;
+    params->subPrime.type = siUnsignedInteger;
+    params->base.type = siUnsignedInteger;
+}
+
+static void
+prepare_dh_pub_key_for_asn1(SECKEYPublicKey *pubk)
+{
+    pubk->u.dh.prime.type = siUnsignedInteger;
+    pubk->u.dh.base.type = siUnsignedInteger;
+    pubk->u.dh.publicValue.type = siUnsignedInteger;
+}
+
+/* Create an RSA key pair is any slot able to do so.
+** The created keys are "session" (temporary), not "token" (permanent),
+** and they are "sensitive", which makes them costly to move to another token.
+*/
+SECKEYPrivateKey *
+SECKEY_CreateRSAPrivateKey(int keySizeInBits, SECKEYPublicKey **pubk, void *cx)
+{
+    SECKEYPrivateKey *privk;
+    PK11RSAGenParams param;
+    PK11SlotInfo *slot = PK11_GetBestSlot(CKM_RSA_PKCS_KEY_PAIR_GEN, cx);
+    if (!slot) {
+        return NULL;
+    }
+
+    param.keySizeInBits = keySizeInBits;
+    param.pe = 65537L;
+
+    privk = PK11_GenerateKeyPair(slot, CKM_RSA_PKCS_KEY_PAIR_GEN, &param, pubk,
+                                 PR_FALSE, PR_TRUE, cx);
+    PK11_FreeSlot(slot);
+    return (privk);
+}
+
+/* Create a DH key pair in any slot able to do so,
+** This is a "session" (temporary), not "token" (permanent) key.
+** Because of the high probability that this key will need to be moved to
+** another token, and the high cost of moving "sensitive" keys, we attempt
+** to create this key pair without the "sensitive" attribute, but revert to
+** creating a "sensitive" key if necessary.
+*/
+SECKEYPrivateKey *
+SECKEY_CreateDHPrivateKey(SECKEYDHParams *param, SECKEYPublicKey **pubk, void *cx)
+{
+    SECKEYPrivateKey *privk;
+    PK11SlotInfo *slot;
+
+    if (!param || !param->base.data || !param->prime.data ||
+        SECKEY_BigIntegerBitLength(&param->prime) < DH_MIN_P_BITS ||
+        param->base.len == 0 || param->base.len > param->prime.len + 1 ||
+        (param->base.len == 1 && param->base.data[0] == 0)) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return NULL;
+    }
+
+    slot = PK11_GetBestSlot(CKM_DH_PKCS_KEY_PAIR_GEN, cx);
+    if (!slot) {
+        return NULL;
+    }
+
+    privk = PK11_GenerateKeyPair(slot, CKM_DH_PKCS_KEY_PAIR_GEN, param,
+                                 pubk, PR_FALSE, PR_FALSE, cx);
+    if (!privk)
+        privk = PK11_GenerateKeyPair(slot, CKM_DH_PKCS_KEY_PAIR_GEN, param,
+                                     pubk, PR_FALSE, PR_TRUE, cx);
+
+    PK11_FreeSlot(slot);
+    return (privk);
+}
+
+/* Create an EC key pair in any slot able to do so,
+** This is a "session" (temporary), not "token" (permanent) key.
+** Because of the high probability that this key will need to be moved to
+** another token, and the high cost of moving "sensitive" keys, we attempt
+** to create this key pair without the "sensitive" attribute, but revert to
+** creating a "sensitive" key if necessary.
+*/
+SECKEYPrivateKey *
+SECKEY_CreateECPrivateKey(SECKEYECParams *param, SECKEYPublicKey **pubk, void *cx)
+{
+    SECKEYPrivateKey *privk;
+    PK11SlotInfo *slot = PK11_GetBestSlot(CKM_EC_KEY_PAIR_GEN, cx);
+    if (!slot) {
+        return NULL;
+    }
+
+    privk = PK11_GenerateKeyPairWithOpFlags(slot, CKM_EC_KEY_PAIR_GEN,
+                                            param, pubk,
+                                            PK11_ATTR_SESSION |
+                                                PK11_ATTR_INSENSITIVE |
+                                                PK11_ATTR_PUBLIC,
+                                            CKF_DERIVE, CKF_DERIVE | CKF_SIGN,
+                                            cx);
+    if (!privk)
+        privk = PK11_GenerateKeyPairWithOpFlags(slot, CKM_EC_KEY_PAIR_GEN,
+                                                param, pubk,
+                                                PK11_ATTR_SESSION |
+                                                    PK11_ATTR_SENSITIVE |
+                                                    PK11_ATTR_PRIVATE,
+                                                CKF_DERIVE, CKF_DERIVE | CKF_SIGN,
+                                                cx);
+
+    PK11_FreeSlot(slot);
+    return (privk);
+}
+
+void
+SECKEY_DestroyPrivateKey(SECKEYPrivateKey *privk)
+{
+    if (privk) {
+        if (privk->pkcs11Slot) {
+            if (privk->pkcs11IsTemp) {
+                PK11_DestroyObject(privk->pkcs11Slot, privk->pkcs11ID);
+            }
+            PK11_FreeSlot(privk->pkcs11Slot);
+        }
+        if (privk->arena) {
+            PORT_FreeArena(privk->arena, PR_TRUE);
+        }
+    }
+}
+
+void
+SECKEY_DestroyPublicKey(SECKEYPublicKey *pubk)
+{
+    if (pubk) {
+        if (pubk->pkcs11Slot) {
+            if (!PK11_IsPermObject(pubk->pkcs11Slot, pubk->pkcs11ID)) {
+                PK11_DestroyObject(pubk->pkcs11Slot, pubk->pkcs11ID);
+            }
+            PK11_FreeSlot(pubk->pkcs11Slot);
+        }
+        if (pubk->arena) {
+            PORT_FreeArena(pubk->arena, PR_FALSE);
+        }
+    }
+}
+
+SECStatus
+SECKEY_CopySubjectPublicKeyInfo(PLArenaPool *arena,
+                                CERTSubjectPublicKeyInfo *to,
+                                CERTSubjectPublicKeyInfo *from)
+{
+    SECStatus rv;
+    SECItem spk;
+
+    rv = SECOID_CopyAlgorithmID(arena, &to->algorithm, &from->algorithm);
+    if (rv == SECSuccess) {
+        /*
+         * subjectPublicKey is a bit string, whose length is in bits.
+         * Convert the length from bits to bytes for SECITEM_CopyItem.
+         */
+        spk = from->subjectPublicKey;
+        DER_ConvertBitString(&spk);
+        rv = SECITEM_CopyItem(arena, &to->subjectPublicKey, &spk);
+        /* Set the length back to bits. */
+        if (rv == SECSuccess) {
+            to->subjectPublicKey.len = from->subjectPublicKey.len;
+        }
+    }
+
+    return rv;
+}
+
+/* Procedure to update the pqg parameters for a cert's public key.
+ * pqg parameters only need to be updated for DSA certificates.
+ * The procedure uses calls to itself recursively to update a certificate
+ * issuer's pqg parameters.  Some important rules are:
+ *    - Do nothing if the cert already has PQG parameters.
+ *    - If the cert does not have PQG parameters, obtain them from the issuer.
+ *    - A valid cert chain cannot have a DSA cert without
+ *      pqg parameters that has a parent that is not a DSA cert.  */
+
+static SECStatus
+seckey_UpdateCertPQGChain(CERTCertificate *subjectCert, int count)
+{
+    SECStatus rv;
+    SECOidData *oid = NULL;
+    int tag;
+    CERTSubjectPublicKeyInfo *subjectSpki = NULL;
+    CERTSubjectPublicKeyInfo *issuerSpki = NULL;
+    CERTCertificate *issuerCert = NULL;
+
+    /* increment cert chain length counter*/
+    count++;
+
+    /* check if cert chain length exceeds the maximum length*/
+    if (count > CERT_MAX_CERT_CHAIN) {
+        return SECFailure;
+    }
+
+    oid = SECOID_FindOID(&subjectCert->subjectPublicKeyInfo.algorithm.algorithm);
+    if (oid != NULL) {
+        tag = oid->offset;
+
+        /* Check if cert has a DSA or EC public key. If not, return
+         * success since no PQG params need to be updated.
+         *
+         * Question: do we really need to do this for EC keys. They don't have
+         * PQG parameters, but they do have parameters. The question is does
+         * the child cert inherit thost parameters for EC from the parent, or
+         * do we always include those parameters in each cert.
+         */
+
+        if ((tag != SEC_OID_ANSIX9_DSA_SIGNATURE) &&
+            (tag != SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
+            (tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST) &&
+            (tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST) &&
+            (tag != SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
+            (tag != SEC_OID_SDN702_DSA_SIGNATURE) &&
+            (tag != SEC_OID_ANSIX962_EC_PUBLIC_KEY)) {
+
+            return SECSuccess;
+        }
+    } else {
+        return SECFailure; /* return failure if oid is NULL */
+    }
+
+    /* if cert has PQG parameters, return success */
+
+    subjectSpki = &subjectCert->subjectPublicKeyInfo;
+
+    if (subjectSpki->algorithm.parameters.len != 0) {
+        return SECSuccess;
+    }
+
+    /* check if the cert is self-signed */
+    if (subjectCert->isRoot) {
+        /* fail since cert is self-signed and has no pqg params. */
+        return SECFailure;
+    }
+
+    /* get issuer cert */
+    issuerCert = CERT_FindCertIssuer(subjectCert, PR_Now(), certUsageAnyCA);
+    if (!issuerCert) {
+        return SECFailure;
+    }
+
+    /* if parent is not DSA, return failure since
+       we don't allow this case. */
+
+    oid = SECOID_FindOID(&issuerCert->subjectPublicKeyInfo.algorithm.algorithm);
+    if (oid != NULL) {
+        tag = oid->offset;
+
+        /* Check if issuer cert has a DSA public key. If not,
+         * return failure.   */
+
+        if ((tag != SEC_OID_ANSIX9_DSA_SIGNATURE) &&
+            (tag != SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
+            (tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST) &&
+            (tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST) &&
+            (tag != SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
+            (tag != SEC_OID_SDN702_DSA_SIGNATURE) &&
+            (tag != SEC_OID_ANSIX962_EC_PUBLIC_KEY)) {
+            rv = SECFailure;
+            goto loser;
+        }
+    } else {
+        rv = SECFailure; /* return failure if oid is NULL */
+        goto loser;
+    }
+
+    /* at this point the subject cert has no pqg parameters and the
+     * issuer cert has a DSA public key.  Update the issuer's
+     * pqg parameters with a recursive call to this same function. */
+
+    rv = seckey_UpdateCertPQGChain(issuerCert, count);
+    if (rv != SECSuccess) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    /* ensure issuer has pqg parameters */
+
+    issuerSpki = &issuerCert->subjectPublicKeyInfo;
+    if (issuerSpki->algorithm.parameters.len == 0) {
+        rv = SECFailure;
+    }
+
+    /* if update was successful and pqg params present, then copy the
+     * parameters to the subject cert's key. */
+
+    if (rv == SECSuccess) {
+        rv = SECITEM_CopyItem(subjectCert->arena,
+                              &subjectSpki->algorithm.parameters,
+                              &issuerSpki->algorithm.parameters);
+    }
+
+loser:
+    if (issuerCert) {
+        CERT_DestroyCertificate(issuerCert);
+    }
+    return rv;
+}
+
+SECStatus
+SECKEY_UpdateCertPQG(CERTCertificate *subjectCert)
+{
+    if (!subjectCert) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+    return seckey_UpdateCertPQGChain(subjectCert, 0);
+}
+
+/* Decode the DSA PQG parameters.  The params could be stored in two
+ * possible formats, the old fortezza-only wrapped format or
+ * the normal standard format.  Store the decoded parameters in
+ * a V3 certificate data structure.  */
+
+static SECStatus
+seckey_DSADecodePQG(PLArenaPool *arena, SECKEYPublicKey *pubk,
+                    const SECItem *params)
+{
+    SECStatus rv;
+    SECItem newparams;
+
+    if (params == NULL)
+        return SECFailure;
+
+    if (params->data == NULL)
+        return SECFailure;
+
+    PORT_Assert(arena);
+
+    /* make a copy of the data into the arena so QuickDER output is valid */
+    rv = SECITEM_CopyItem(arena, &newparams, params);
+
+    /* Check if params use the standard format.
+     * The value 0xa1 will appear in the first byte of the parameter data
+     * if the PQG parameters are not using the standard format.  This
+     * code should be changed to use a better method to detect non-standard
+     * parameters.    */
+
+    if ((newparams.data[0] != 0xa1) &&
+        (newparams.data[0] != 0xa0)) {
+
+        if (SECSuccess == rv) {
+            /* PQG params are in the standard format */
+            prepare_pqg_params_for_asn1(&pubk->u.dsa.params);
+            rv = SEC_QuickDERDecodeItem(arena, &pubk->u.dsa.params,
+                                        SECKEY_PQGParamsTemplate,
+                                        &newparams);
+        }
+    } else {
+
+        if (SECSuccess == rv) {
+            /* else the old fortezza-only wrapped format is used. */
+            PORT_SetError(SEC_ERROR_BAD_DER);
+            rv = SECFailure;
+        }
+    }
+    return rv;
+}
+
+/* Function used to make an oid tag to a key type */
+KeyType
+seckey_GetKeyType(SECOidTag tag)
+{
+    KeyType keyType;
+
+    switch (tag) {
+        case SEC_OID_X500_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_RSA_ENCRYPTION:
+            keyType = rsaKey;
+            break;
+        case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+            keyType = rsaPssKey;
+            break;
+        case SEC_OID_PKCS1_RSA_OAEP_ENCRYPTION:
+            keyType = rsaOaepKey;
+            break;
+        case SEC_OID_ANSIX9_DSA_SIGNATURE:
+            keyType = dsaKey;
+            break;
+        case SEC_OID_MISSI_KEA_DSS_OLD:
+        case SEC_OID_MISSI_KEA_DSS:
+        case SEC_OID_MISSI_DSS_OLD:
+        case SEC_OID_MISSI_DSS:
+            keyType = fortezzaKey;
+            break;
+        case SEC_OID_MISSI_KEA:
+        case SEC_OID_MISSI_ALT_KEA:
+            keyType = keaKey;
+            break;
+        case SEC_OID_X942_DIFFIE_HELMAN_KEY:
+            keyType = dhKey;
+            break;
+        case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
+            keyType = ecKey;
+            break;
+        /* accommodate applications that hand us a signature type when they
+         * should be handing us a cipher type */
+        case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
+            keyType = rsaKey;
+            break;
+        default:
+            keyType = nullKey;
+    }
+    return keyType;
+}
+
+/* Function used to determine what kind of cert we are dealing with. */
+KeyType
+CERT_GetCertKeyType(const CERTSubjectPublicKeyInfo *spki)
+{
+    return seckey_GetKeyType(SECOID_GetAlgorithmTag(&spki->algorithm));
+}
+
+/* Ensure pubKey contains an OID */
+static SECStatus
+seckey_HasCurveOID(const SECKEYPublicKey *pubKey)
+{
+    SECItem oid;
+    SECStatus rv;
+    PORTCheapArenaPool tmpArena;
+
+    PORT_InitCheapArena(&tmpArena, DER_DEFAULT_CHUNKSIZE);
+    /* If we can decode it, an OID is available. */
+    rv = SEC_QuickDERDecodeItem(&tmpArena.arena, &oid,
+                                SEC_ASN1_GET(SEC_ObjectIDTemplate),
+                                &pubKey->u.ec.DEREncodedParams);
+    PORT_DestroyCheapArena(&tmpArena);
+    return rv;
+}
+
+static SECKEYPublicKey *
+seckey_ExtractPublicKey(const CERTSubjectPublicKeyInfo *spki)
+{
+    SECKEYPublicKey *pubk;
+    SECItem os, newOs, newParms;
+    SECStatus rv;
+    PLArenaPool *arena;
+    SECOidTag tag;
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL)
+        return NULL;
+
+    pubk = (SECKEYPublicKey *)PORT_ArenaZAlloc(arena, sizeof(SECKEYPublicKey));
+    if (pubk == NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+        return NULL;
+    }
+
+    pubk->arena = arena;
+    pubk->pkcs11Slot = 0;
+    pubk->pkcs11ID = CK_INVALID_HANDLE;
+
+    /* Convert bit string length from bits to bytes */
+    os = spki->subjectPublicKey;
+    DER_ConvertBitString(&os);
+
+    tag = SECOID_GetAlgorithmTag(&spki->algorithm);
+
+    /* copy the DER into the arena, since Quick DER returns data that points
+       into the DER input, which may get freed by the caller */
+    rv = SECITEM_CopyItem(arena, &newOs, &os);
+    if (rv == SECSuccess)
+        switch (tag) {
+            case SEC_OID_X500_RSA_ENCRYPTION:
+            case SEC_OID_PKCS1_RSA_ENCRYPTION:
+            case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+                pubk->keyType = rsaKey;
+                prepare_rsa_pub_key_for_asn1(pubk);
+                rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_RSAPublicKeyTemplate, &newOs);
+                if (rv == SECSuccess)
+                    return pubk;
+                break;
+            case SEC_OID_ANSIX9_DSA_SIGNATURE:
+            case SEC_OID_SDN702_DSA_SIGNATURE:
+                pubk->keyType = dsaKey;
+                prepare_dsa_pub_key_for_asn1(pubk);
+                rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DSAPublicKeyTemplate, &newOs);
+                if (rv != SECSuccess)
+                    break;
+
+                rv = seckey_DSADecodePQG(arena, pubk,
+                                         &spki->algorithm.parameters);
+
+                if (rv == SECSuccess)
+                    return pubk;
+                break;
+            case SEC_OID_X942_DIFFIE_HELMAN_KEY:
+                pubk->keyType = dhKey;
+                prepare_dh_pub_key_for_asn1(pubk);
+                rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DHPublicKeyTemplate, &newOs);
+                if (rv != SECSuccess)
+                    break;
+
+                /* copy the DER into the arena, since Quick DER returns data that points
+                   into the DER input, which may get freed by the caller */
+                rv = SECITEM_CopyItem(arena, &newParms, &spki->algorithm.parameters);
+                if (rv != SECSuccess)
+                    break;
+
+                rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DHParamKeyTemplate,
+                                            &newParms);
+
+                if (rv == SECSuccess)
+                    return pubk;
+                break;
+            case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
+                /* A basic sanity check on inputs. */
+                if (spki->algorithm.parameters.len == 0 || newOs.len == 0) {
+                    PORT_SetError(SEC_ERROR_INPUT_LEN);
+                    break;
+                }
+                pubk->keyType = ecKey;
+                pubk->u.ec.size = 0;
+
+                /* Since PKCS#11 directly takes the DER encoding of EC params
+                 * and public value, we don't need any decoding here.
+                 */
+                rv = SECITEM_CopyItem(arena, &pubk->u.ec.DEREncodedParams,
+                                      &spki->algorithm.parameters);
+                if (rv != SECSuccess) {
+                    break;
+                }
+                rv = SECITEM_CopyItem(arena, &pubk->u.ec.publicValue, &newOs);
+                if (rv != SECSuccess) {
+                    break;
+                }
+                pubk->u.ec.encoding = ECPoint_Undefined;
+                rv = seckey_HasCurveOID(pubk);
+                if (rv == SECSuccess) {
+                    return pubk;
+                }
+                break;
+
+            default:
+                PORT_SetError(SEC_ERROR_UNSUPPORTED_KEYALG);
+                break;
+        }
+
+    SECKEY_DestroyPublicKey(pubk);
+    return NULL;
+}
+
+/* required for JSS */
+SECKEYPublicKey *
+SECKEY_ExtractPublicKey(const CERTSubjectPublicKeyInfo *spki)
+{
+    return seckey_ExtractPublicKey(spki);
+}
+
+SECKEYPublicKey *
+CERT_ExtractPublicKey(CERTCertificate *cert)
+{
+    return seckey_ExtractPublicKey(&cert->subjectPublicKeyInfo);
+}
+
+int
+SECKEY_ECParamsToKeySize(const SECItem *encodedParams)
+{
+    SECOidTag tag;
+    SECItem oid = { siBuffer, NULL, 0 };
+
+    /* The encodedParams data contains 0x06 (SEC_ASN1_OBJECT_ID),
+     * followed by the length of the curve oid and the curve oid.
+     */
+    oid.len = encodedParams->data[1];
+    oid.data = encodedParams->data + 2;
+    if ((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)
+        return 0;
+
+    switch (tag) {
+        case SEC_OID_SECG_EC_SECP112R1:
+        case SEC_OID_SECG_EC_SECP112R2:
+            return 112;
+
+        case SEC_OID_SECG_EC_SECT113R1:
+        case SEC_OID_SECG_EC_SECT113R2:
+            return 113;
+
+        case SEC_OID_SECG_EC_SECP128R1:
+        case SEC_OID_SECG_EC_SECP128R2:
+            return 128;
+
+        case SEC_OID_SECG_EC_SECT131R1:
+        case SEC_OID_SECG_EC_SECT131R2:
+            return 131;
+
+        case SEC_OID_SECG_EC_SECP160K1:
+        case SEC_OID_SECG_EC_SECP160R1:
+        case SEC_OID_SECG_EC_SECP160R2:
+            return 160;
+
+        case SEC_OID_SECG_EC_SECT163K1:
+        case SEC_OID_SECG_EC_SECT163R1:
+        case SEC_OID_SECG_EC_SECT163R2:
+        case SEC_OID_ANSIX962_EC_C2PNB163V1:
+        case SEC_OID_ANSIX962_EC_C2PNB163V2:
+        case SEC_OID_ANSIX962_EC_C2PNB163V3:
+            return 163;
+
+        case SEC_OID_ANSIX962_EC_C2PNB176V1:
+            return 176;
+
+        case SEC_OID_ANSIX962_EC_C2TNB191V1:
+        case SEC_OID_ANSIX962_EC_C2TNB191V2:
+        case SEC_OID_ANSIX962_EC_C2TNB191V3:
+        case SEC_OID_ANSIX962_EC_C2ONB191V4:
+        case SEC_OID_ANSIX962_EC_C2ONB191V5:
+            return 191;
+
+        case SEC_OID_SECG_EC_SECP192K1:
+        case SEC_OID_ANSIX962_EC_PRIME192V1:
+        case SEC_OID_ANSIX962_EC_PRIME192V2:
+        case SEC_OID_ANSIX962_EC_PRIME192V3:
+            return 192;
+
+        case SEC_OID_SECG_EC_SECT193R1:
+        case SEC_OID_SECG_EC_SECT193R2:
+            return 193;
+
+        case SEC_OID_ANSIX962_EC_C2PNB208W1:
+            return 208;
+
+        case SEC_OID_SECG_EC_SECP224K1:
+        case SEC_OID_SECG_EC_SECP224R1:
+            return 224;
+
+        case SEC_OID_SECG_EC_SECT233K1:
+        case SEC_OID_SECG_EC_SECT233R1:
+            return 233;
+
+        case SEC_OID_SECG_EC_SECT239K1:
+        case SEC_OID_ANSIX962_EC_C2TNB239V1:
+        case SEC_OID_ANSIX962_EC_C2TNB239V2:
+        case SEC_OID_ANSIX962_EC_C2TNB239V3:
+        case SEC_OID_ANSIX962_EC_C2ONB239V4:
+        case SEC_OID_ANSIX962_EC_C2ONB239V5:
+        case SEC_OID_ANSIX962_EC_PRIME239V1:
+        case SEC_OID_ANSIX962_EC_PRIME239V2:
+        case SEC_OID_ANSIX962_EC_PRIME239V3:
+            return 239;
+
+        case SEC_OID_SECG_EC_SECP256K1:
+        case SEC_OID_ANSIX962_EC_PRIME256V1:
+            return 256;
+
+        case SEC_OID_ANSIX962_EC_C2PNB272W1:
+            return 272;
+
+        case SEC_OID_SECG_EC_SECT283K1:
+        case SEC_OID_SECG_EC_SECT283R1:
+            return 283;
+
+        case SEC_OID_ANSIX962_EC_C2PNB304W1:
+            return 304;
+
+        case SEC_OID_ANSIX962_EC_C2TNB359V1:
+            return 359;
+
+        case SEC_OID_ANSIX962_EC_C2PNB368W1:
+            return 368;
+
+        case SEC_OID_SECG_EC_SECP384R1:
+            return 384;
+
+        case SEC_OID_SECG_EC_SECT409K1:
+        case SEC_OID_SECG_EC_SECT409R1:
+            return 409;
+
+        case SEC_OID_ANSIX962_EC_C2TNB431R1:
+            return 431;
+
+        case SEC_OID_SECG_EC_SECP521R1:
+            return 521;
+
+        case SEC_OID_SECG_EC_SECT571K1:
+        case SEC_OID_SECG_EC_SECT571R1:
+            return 571;
+
+        case SEC_OID_CURVE25519:
+            return 255;
+
+        default:
+            PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
+            return 0;
+    }
+}
+
+int
+SECKEY_ECParamsToBasePointOrderLen(const SECItem *encodedParams)
+{
+    SECOidTag tag;
+    SECItem oid = { siBuffer, NULL, 0 };
+
+    /* The encodedParams data contains 0x06 (SEC_ASN1_OBJECT_ID),
+     * followed by the length of the curve oid and the curve oid.
+     */
+    oid.len = encodedParams->data[1];
+    oid.data = encodedParams->data + 2;
+    if ((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)
+        return 0;
+
+    switch (tag) {
+        case SEC_OID_SECG_EC_SECP112R1:
+            return 112;
+        case SEC_OID_SECG_EC_SECP112R2:
+            return 110;
+
+        case SEC_OID_SECG_EC_SECT113R1:
+        case SEC_OID_SECG_EC_SECT113R2:
+            return 113;
+
+        case SEC_OID_SECG_EC_SECP128R1:
+            return 128;
+        case SEC_OID_SECG_EC_SECP128R2:
+            return 126;
+
+        case SEC_OID_SECG_EC_SECT131R1:
+        case SEC_OID_SECG_EC_SECT131R2:
+            return 131;
+
+        case SEC_OID_SECG_EC_SECP160K1:
+        case SEC_OID_SECG_EC_SECP160R1:
+        case SEC_OID_SECG_EC_SECP160R2:
+            return 161;
+
+        case SEC_OID_SECG_EC_SECT163K1:
+            return 163;
+        case SEC_OID_SECG_EC_SECT163R1:
+            return 162;
+        case SEC_OID_SECG_EC_SECT163R2:
+        case SEC_OID_ANSIX962_EC_C2PNB163V1:
+            return 163;
+        case SEC_OID_ANSIX962_EC_C2PNB163V2:
+        case SEC_OID_ANSIX962_EC_C2PNB163V3:
+            return 162;
+
+        case SEC_OID_ANSIX962_EC_C2PNB176V1:
+            return 161;
+
+        case SEC_OID_ANSIX962_EC_C2TNB191V1:
+            return 191;
+        case SEC_OID_ANSIX962_EC_C2TNB191V2:
+            return 190;
+        case SEC_OID_ANSIX962_EC_C2TNB191V3:
+            return 189;
+        case SEC_OID_ANSIX962_EC_C2ONB191V4:
+            return 191;
+        case SEC_OID_ANSIX962_EC_C2ONB191V5:
+            return 188;
+
+        case SEC_OID_SECG_EC_SECP192K1:
+        case SEC_OID_ANSIX962_EC_PRIME192V1:
+        case SEC_OID_ANSIX962_EC_PRIME192V2:
+        case SEC_OID_ANSIX962_EC_PRIME192V3:
+            return 192;
+
+        case SEC_OID_SECG_EC_SECT193R1:
+        case SEC_OID_SECG_EC_SECT193R2:
+            return 193;
+
+        case SEC_OID_ANSIX962_EC_C2PNB208W1:
+            return 193;
+
+        case SEC_OID_SECG_EC_SECP224K1:
+            return 225;
+        case SEC_OID_SECG_EC_SECP224R1:
+            return 224;
+
+        case SEC_OID_SECG_EC_SECT233K1:
+            return 232;
+        case SEC_OID_SECG_EC_SECT233R1:
+            return 233;
+
+        case SEC_OID_SECG_EC_SECT239K1:
+        case SEC_OID_ANSIX962_EC_C2TNB239V1:
+            return 238;
+        case SEC_OID_ANSIX962_EC_C2TNB239V2:
+            return 237;
+        case SEC_OID_ANSIX962_EC_C2TNB239V3:
+            return 236;
+        case SEC_OID_ANSIX962_EC_C2ONB239V4:
+            return 238;
+        case SEC_OID_ANSIX962_EC_C2ONB239V5:
+            return 237;
+        case SEC_OID_ANSIX962_EC_PRIME239V1:
+        case SEC_OID_ANSIX962_EC_PRIME239V2:
+        case SEC_OID_ANSIX962_EC_PRIME239V3:
+            return 239;
+
+        case SEC_OID_SECG_EC_SECP256K1:
+        case SEC_OID_ANSIX962_EC_PRIME256V1:
+            return 256;
+
+        case SEC_OID_ANSIX962_EC_C2PNB272W1:
+            return 257;
+
+        case SEC_OID_SECG_EC_SECT283K1:
+            return 281;
+        case SEC_OID_SECG_EC_SECT283R1:
+            return 282;
+
+        case SEC_OID_ANSIX962_EC_C2PNB304W1:
+            return 289;
+
+        case SEC_OID_ANSIX962_EC_C2TNB359V1:
+            return 353;
+
+        case SEC_OID_ANSIX962_EC_C2PNB368W1:
+            return 353;
+
+        case SEC_OID_SECG_EC_SECP384R1:
+            return 384;
+
+        case SEC_OID_SECG_EC_SECT409K1:
+            return 407;
+        case SEC_OID_SECG_EC_SECT409R1:
+            return 409;
+
+        case SEC_OID_ANSIX962_EC_C2TNB431R1:
+            return 418;
+
+        case SEC_OID_SECG_EC_SECP521R1:
+            return 521;
+
+        case SEC_OID_SECG_EC_SECT571K1:
+        case SEC_OID_SECG_EC_SECT571R1:
+            return 570;
+
+        case SEC_OID_CURVE25519:
+            return 255;
+
+        default:
+            PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
+            return 0;
+    }
+}
+
+/* The number of bits in the number from the first non-zero bit onward. */
+unsigned
+SECKEY_BigIntegerBitLength(const SECItem *number)
+{
+    const unsigned char *p;
+    unsigned octets;
+    unsigned bits;
+
+    if (!number || !number->data) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+
+    p = number->data;
+    octets = number->len;
+    while (octets > 0 && !*p) {
+        ++p;
+        --octets;
+    }
+    if (octets == 0) {
+        return 0;
+    }
+    /* bits = 7..1 because we know at least one bit is set already */
+    /* Note: This could do a binary search, but this is faster for keys if we
+     * assume that good keys will have the MSB set. */
+    for (bits = 7; bits > 0; --bits) {
+        if (*p & (1 << bits)) {
+            break;
+        }
+    }
+    return octets * 8 + bits - 7;
+}
+
+/* returns key strength in bytes (not bits) */
+unsigned
+SECKEY_PublicKeyStrength(const SECKEYPublicKey *pubk)
+{
+    return (SECKEY_PublicKeyStrengthInBits(pubk) + 7) / 8;
+}
+
+/* returns key strength in bits */
+unsigned
+SECKEY_PublicKeyStrengthInBits(const SECKEYPublicKey *pubk)
+{
+    unsigned bitSize = 0;
+
+    if (!pubk) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+
+    /* interpret modulus length as key strength */
+    switch (pubk->keyType) {
+        case rsaKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.rsa.modulus);
+            break;
+        case dsaKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.dsa.params.prime);
+            break;
+        case dhKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.dh.prime);
+            break;
+        case ecKey:
+            bitSize = SECKEY_ECParamsToKeySize(&pubk->u.ec.DEREncodedParams);
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_KEY);
+            break;
+    }
+    return bitSize;
+}
+
+unsigned
+SECKEY_PrivateKeyStrengthInBits(const SECKEYPrivateKey *privk)
+{
+    unsigned bitSize = 0;
+    SECItem params = { siBuffer, NULL, 0 };
+    SECStatus rv;
+
+    if (!privk) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+
+    /* interpret modulus length as key strength */
+    switch (privk->keyType) {
+        case rsaKey:
+        case rsaPssKey:
+        case rsaOaepKey:
+            /* some tokens don't export CKA_MODULUS on the private key,
+             * PK11_SignatureLen works around this if necessary */
+            bitSize = PK11_SignatureLen((SECKEYPrivateKey *)privk) * PR_BITS_PER_BYTE;
+            if (bitSize == -1) {
+                bitSize = 0;
+            }
+            return bitSize;
+        case dsaKey:
+        case fortezzaKey:
+        case dhKey:
+        case keaKey:
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_PRIME, NULL, &params);
+            if ((rv != SECSuccess) || (params.data == NULL)) {
+                PORT_SetError(SEC_ERROR_INVALID_KEY);
+                return 0;
+            }
+            bitSize = SECKEY_BigIntegerBitLength(&params);
+            PORT_Free(params.data);
+            return bitSize;
+        case ecKey:
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_EC_PARAMS, NULL, &params);
+            if ((rv != SECSuccess) || (params.data == NULL)) {
+                return 0;
+            }
+            bitSize = SECKEY_ECParamsToKeySize(&params);
+            PORT_Free(params.data);
+            return bitSize;
+        default:
+            break;
+    }
+    PORT_SetError(SEC_ERROR_INVALID_KEY);
+    return 0;
+}
+
+/* returns signature length in bytes (not bits) */
+unsigned
+SECKEY_SignatureLen(const SECKEYPublicKey *pubk)
+{
+    unsigned size;
+
+    switch (pubk->keyType) {
+        case rsaKey:
+        case rsaPssKey:
+            if (pubk->u.rsa.modulus.len == 0) {
+                return 0;
+            }
+            if (pubk->u.rsa.modulus.data[0] == 0) {
+                return pubk->u.rsa.modulus.len - 1;
+            }
+            return pubk->u.rsa.modulus.len;
+        case dsaKey:
+            return pubk->u.dsa.params.subPrime.len * 2;
+        case ecKey:
+            /* Get the base point order length in bits and adjust */
+            size = SECKEY_ECParamsToBasePointOrderLen(
+                &pubk->u.ec.DEREncodedParams);
+            return ((size + 7) / 8) * 2;
+        default:
+            break;
+    }
+    PORT_SetError(SEC_ERROR_INVALID_KEY);
+    return 0;
+}
+
+SECKEYPrivateKey *
+SECKEY_CopyPrivateKey(const SECKEYPrivateKey *privk)
+{
+    SECKEYPrivateKey *copyk;
+    PLArenaPool *arena;
+
+    if (!privk || !privk->pkcs11Slot) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return NULL;
+    }
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        return NULL;
+    }
+
+    copyk = (SECKEYPrivateKey *)PORT_ArenaZAlloc(arena, sizeof(SECKEYPrivateKey));
+    if (copyk) {
+        copyk->arena = arena;
+        copyk->keyType = privk->keyType;
+
+        /* copy the PKCS #11 parameters */
+        copyk->pkcs11Slot = PK11_ReferenceSlot(privk->pkcs11Slot);
+        /* if the key we're referencing was a temparary key we have just
+         * created, that we want to go away when we're through, we need
+         * to make a copy of it */
+        if (privk->pkcs11IsTemp) {
+            copyk->pkcs11ID =
+                PK11_CopyKey(privk->pkcs11Slot, privk->pkcs11ID);
+            if (copyk->pkcs11ID == CK_INVALID_HANDLE)
+                goto fail;
+        } else {
+            copyk->pkcs11ID = privk->pkcs11ID;
+        }
+        copyk->pkcs11IsTemp = privk->pkcs11IsTemp;
+        copyk->wincx = privk->wincx;
+        copyk->staticflags = privk->staticflags;
+        return copyk;
+    } else {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+    }
+
+fail:
+    PORT_FreeArena(arena, PR_FALSE);
+    return NULL;
+}
+
+SECKEYPublicKey *
+SECKEY_CopyPublicKey(const SECKEYPublicKey *pubk)
+{
+    SECKEYPublicKey *copyk;
+    PLArenaPool *arena;
+    SECStatus rv = SECSuccess;
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        return NULL;
+    }
+
+    copyk = (SECKEYPublicKey *)PORT_ArenaZAlloc(arena, sizeof(SECKEYPublicKey));
+    if (!copyk) {
+        PORT_FreeArena(arena, PR_FALSE);
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        return NULL;
+    }
+
+    copyk->arena = arena;
+    copyk->keyType = pubk->keyType;
+    if (pubk->pkcs11Slot &&
+        PK11_IsPermObject(pubk->pkcs11Slot, pubk->pkcs11ID)) {
+        copyk->pkcs11Slot = PK11_ReferenceSlot(pubk->pkcs11Slot);
+        copyk->pkcs11ID = pubk->pkcs11ID;
+    } else {
+        copyk->pkcs11Slot = NULL; /* go get own reference */
+        copyk->pkcs11ID = CK_INVALID_HANDLE;
+    }
+    switch (pubk->keyType) {
+        case rsaKey:
+            rv = SECITEM_CopyItem(arena, &copyk->u.rsa.modulus,
+                                  &pubk->u.rsa.modulus);
+            if (rv == SECSuccess) {
+                rv = SECITEM_CopyItem(arena, &copyk->u.rsa.publicExponent,
+                                      &pubk->u.rsa.publicExponent);
+                if (rv == SECSuccess)
+                    return copyk;
+            }
+            break;
+        case dsaKey:
+            rv = SECITEM_CopyItem(arena, &copyk->u.dsa.publicValue,
+                                  &pubk->u.dsa.publicValue);
+            if (rv != SECSuccess)
+                break;
+            rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.prime,
+                                  &pubk->u.dsa.params.prime);
+            if (rv != SECSuccess)
+                break;
+            rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.subPrime,
+                                  &pubk->u.dsa.params.subPrime);
+            if (rv != SECSuccess)
+                break;
+            rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.base,
+                                  &pubk->u.dsa.params.base);
+            break;
+        case dhKey:
+            rv = SECITEM_CopyItem(arena, &copyk->u.dh.prime, &pubk->u.dh.prime);
+            if (rv != SECSuccess)
+                break;
+            rv = SECITEM_CopyItem(arena, &copyk->u.dh.base, &pubk->u.dh.base);
+            if (rv != SECSuccess)
+                break;
+            rv = SECITEM_CopyItem(arena, &copyk->u.dh.publicValue,
+                                  &pubk->u.dh.publicValue);
+            break;
+        case ecKey:
+            copyk->u.ec.size = pubk->u.ec.size;
+            rv = seckey_HasCurveOID(pubk);
+            if (rv != SECSuccess) {
+                break;
+            }
+            rv = SECITEM_CopyItem(arena, &copyk->u.ec.DEREncodedParams,
+                                  &pubk->u.ec.DEREncodedParams);
+            if (rv != SECSuccess) {
+                break;
+            }
+            copyk->u.ec.encoding = ECPoint_Undefined;
+            rv = SECITEM_CopyItem(arena, &copyk->u.ec.publicValue,
+                                  &pubk->u.ec.publicValue);
+            break;
+        case nullKey:
+            return copyk;
+        case kyberKey:
+            copyk->u.kyber.params = pubk->u.kyber.params;
+            rv = SECITEM_CopyItem(arena, &copyk->u.kyber.publicValue,
+                                  &pubk->u.kyber.publicValue);
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_KEY);
+            rv = SECFailure;
+            break;
+    }
+    if (rv == SECSuccess)
+        return copyk;
+
+    SECKEY_DestroyPublicKey(copyk);
+    return NULL;
+}
+
+/*
+ * Check that a given key meets the policy limits for the given key
+ * size.
+ */
+SECStatus
+seckey_EnforceKeySize(KeyType keyType, unsigned keyLength, SECErrorCodes error)
+{
+    PRInt32 opt = -1;
+    PRInt32 optVal;
+    SECStatus rv;
+
+    switch (keyType) {
+        case rsaKey:
+        case rsaPssKey:
+        case rsaOaepKey:
+            opt = NSS_RSA_MIN_KEY_SIZE;
+            break;
+        case dsaKey:
+        case fortezzaKey:
+            opt = NSS_DSA_MIN_KEY_SIZE;
+            break;
+        case dhKey:
+        case keaKey:
+            opt = NSS_DH_MIN_KEY_SIZE;
+            break;
+        case ecKey:
+            opt = NSS_ECC_MIN_KEY_SIZE;
+            break;
+        case nullKey:
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_KEY);
+            return SECFailure;
+    }
+    PORT_Assert(opt != -1);
+    rv = NSS_OptionGet(opt, &optVal);
+    if (rv != SECSuccess) {
+        return rv;
+    }
+    if (optVal > keyLength) {
+        PORT_SetError(error);
+        return SECFailure;
+    }
+    return SECSuccess;
+}
+
+/*
+ * Use the private key to find a public key handle. The handle will be on
+ * the same slot as the private key.
+ */
+static CK_OBJECT_HANDLE
+seckey_FindPublicKeyHandle(SECKEYPrivateKey *privk, SECKEYPublicKey *pubk)
+{
+    CK_OBJECT_HANDLE keyID;
+
+    /* this helper function is only used below. If we want to make this more
+     * general, we would need to free up any already cached handles if the
+     * slot doesn't match up with the private key slot */
+    PORT_Assert(pubk->pkcs11ID == CK_INVALID_HANDLE);
+
+    /* first look for a matching public key */
+    keyID = PK11_MatchItem(privk->pkcs11Slot, privk->pkcs11ID, CKO_PUBLIC_KEY);
+    if (keyID != CK_INVALID_HANDLE) {
+        return keyID;
+    }
+
+    /* none found, create a temp one, make the pubk the owner */
+    pubk->pkcs11ID = PK11_DerivePubKeyFromPrivKey(privk);
+    if (pubk->pkcs11ID == CK_INVALID_HANDLE) {
+        /* end of the road. Token doesn't have matching public key, nor can
+          * token regenerate a new public key from and existing private key. */
+        return CK_INVALID_HANDLE;
+    }
+    pubk->pkcs11Slot = PK11_ReferenceSlot(privk->pkcs11Slot);
+    return pubk->pkcs11ID;
+}
+
+SECKEYPublicKey *
+SECKEY_ConvertToPublicKey(SECKEYPrivateKey *privk)
+{
+    SECKEYPublicKey *pubk;
+    PLArenaPool *arena;
+    CERTCertificate *cert;
+    SECStatus rv;
+    CK_OBJECT_HANDLE pubKeyHandle;
+    SECItem decodedPoint;
+
+    /*
+     * First try to look up the cert.
+     */
+    cert = PK11_GetCertFromPrivateKey(privk);
+    if (cert) {
+        pubk = CERT_ExtractPublicKey(cert);
+        CERT_DestroyCertificate(cert);
+        return pubk;
+    }
+
+    /* couldn't find the cert, build pub key by hand */
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        return NULL;
+    }
+    pubk = (SECKEYPublicKey *)PORT_ArenaZAlloc(arena,
+                                               sizeof(SECKEYPublicKey));
+    if (pubk == NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+        return NULL;
+    }
+    pubk->keyType = privk->keyType;
+    pubk->pkcs11Slot = NULL;
+    pubk->pkcs11ID = CK_INVALID_HANDLE;
+    pubk->arena = arena;
+
+    switch (privk->keyType) {
+        case nullKey:
+            /* Nothing to query, if the cert isn't there, we're done -- no way
+             * to get the public key */
+            break;
+        case dsaKey:
+            pubKeyHandle = seckey_FindPublicKeyHandle(privk, pubk);
+            if (pubKeyHandle == CK_INVALID_HANDLE)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_BASE, arena, &pubk->u.dsa.params.base);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_PRIME, arena, &pubk->u.dsa.params.prime);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_SUBPRIME, arena, &pubk->u.dsa.params.subPrime);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_VALUE, arena, &pubk->u.dsa.publicValue);
+            if (rv != SECSuccess)
+                break;
+            return pubk;
+        case dhKey:
+            pubKeyHandle = seckey_FindPublicKeyHandle(privk, pubk);
+            if (pubKeyHandle == CK_INVALID_HANDLE)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_BASE, arena, &pubk->u.dh.base);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_PRIME, arena, &pubk->u.dh.prime);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                    CKA_VALUE, arena, &pubk->u.dh.publicValue);
+            if (rv != SECSuccess)
+                break;
+            return pubk;
+        case rsaKey:
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_MODULUS, arena, &pubk->u.rsa.modulus);
+            if (rv != SECSuccess)
+                break;
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_PUBLIC_EXPONENT, arena, &pubk->u.rsa.publicExponent);
+            if (rv != SECSuccess)
+                break;
+            return pubk;
+        case ecKey:
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_EC_PARAMS, arena, &pubk->u.ec.DEREncodedParams);
+            if (rv != SECSuccess) {
+                break;
+            }
+            rv = PK11_ReadAttribute(privk->pkcs11Slot, privk->pkcs11ID,
+                                    CKA_EC_POINT, arena, &pubk->u.ec.publicValue);
+            if (rv != SECSuccess || pubk->u.ec.publicValue.len == 0) {
+                pubKeyHandle = seckey_FindPublicKeyHandle(privk, pubk);
+                if (pubKeyHandle == CK_INVALID_HANDLE)
+                    break;
+                rv = PK11_ReadAttribute(privk->pkcs11Slot, pubKeyHandle,
+                                        CKA_EC_POINT, arena, &pubk->u.ec.publicValue);
+                if (rv != SECSuccess)
+                    break;
+            }
+            /* ec.publicValue should be decoded, PKCS #11 defines CKA_EC_POINT
+             * as encoded, but it's not always. try do decoded it and if it
+             * succeeds store the decoded value */
+            rv = SEC_QuickDERDecodeItem(arena, &decodedPoint,
+                                        SEC_ASN1_GET(SEC_OctetStringTemplate), &pubk->u.ec.publicValue);
+            if (rv == SECSuccess) {
+                /* both values are in the public key arena, so it's safe to
+                 * overwrite  the old value */
+                pubk->u.ec.publicValue = decodedPoint;
+            }
+            pubk->u.ec.encoding = ECPoint_Undefined;
+            return pubk;
+        default:
+            break;
+    }
+
+    /* must use Destroy public key here, because some paths create temporary
+     * PKCS #11 objects which need to be freed */
+    SECKEY_DestroyPublicKey(pubk);
+    return NULL;
+}
+
+static CERTSubjectPublicKeyInfo *
+seckey_CreateSubjectPublicKeyInfo_helper(SECKEYPublicKey *pubk)
+{
+    CERTSubjectPublicKeyInfo *spki;
+    PLArenaPool *arena;
+    SECItem params = { siBuffer, NULL, 0 };
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        return NULL;
+    }
+
+    spki = (CERTSubjectPublicKeyInfo *)PORT_ArenaZAlloc(arena, sizeof(*spki));
+    if (spki != NULL) {
+        SECStatus rv;
+        SECItem *rv_item;
+
+        spki->arena = arena;
+        switch (pubk->keyType) {
+            case rsaKey:
+                rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
+                                           SEC_OID_PKCS1_RSA_ENCRYPTION, 0);
+                if (rv == SECSuccess) {
+                    /*
+                     * DER encode the public key into the subjectPublicKeyInfo.
+                     */
+                    prepare_rsa_pub_key_for_asn1(pubk);
+                    rv_item = SEC_ASN1EncodeItem(arena, &spki->subjectPublicKey,
+                                                 pubk, SECKEY_RSAPublicKeyTemplate);
+                    if (rv_item != NULL) {
+                        /*
+                         * The stored value is supposed to be a BIT_STRING,
+                         * so convert the length.
+                         */
+                        spki->subjectPublicKey.len <<= 3;
+                        /*
+                         * We got a good one; return it.
+                         */
+                        return spki;
+                    }
+                }
+                break;
+            case dsaKey:
+                /* DER encode the params. */
+                prepare_pqg_params_for_asn1(&pubk->u.dsa.params);
+                rv_item = SEC_ASN1EncodeItem(arena, &params, &pubk->u.dsa.params,
+                                             SECKEY_PQGParamsTemplate);
+                if (rv_item != NULL) {
+                    rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
+                                               SEC_OID_ANSIX9_DSA_SIGNATURE,
+                                               &params);
+                    if (rv == SECSuccess) {
+                        /*
+                         * DER encode the public key into the subjectPublicKeyInfo.
+                         */
+                        prepare_dsa_pub_key_for_asn1(pubk);
+                        rv_item = SEC_ASN1EncodeItem(arena, &spki->subjectPublicKey,
+                                                     pubk,
+                                                     SECKEY_DSAPublicKeyTemplate);
+                        if (rv_item != NULL) {
+                            /*
+                             * The stored value is supposed to be a BIT_STRING,
+                             * so convert the length.
+                             */
+                            spki->subjectPublicKey.len <<= 3;
+                            /*
+                             * We got a good one; return it.
+                             */
+                            return spki;
+                        }
+                    }
+                }
+                SECITEM_FreeItem(&params, PR_FALSE);
+                break;
+            case ecKey:
+                rv = SECITEM_CopyItem(arena, &params,
+                                      &pubk->u.ec.DEREncodedParams);
+                if (rv != SECSuccess)
+                    break;
+
+                rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
+                                           SEC_OID_ANSIX962_EC_PUBLIC_KEY,
+                                           &params);
+                if (rv != SECSuccess)
+                    break;
+
+                rv = SECITEM_CopyItem(arena, &spki->subjectPublicKey,
+                                      &pubk->u.ec.publicValue);
+
+                if (rv == SECSuccess) {
+                    /*
+                     * The stored value is supposed to be a BIT_STRING,
+                     * so convert the length.
+                     */
+                    spki->subjectPublicKey.len <<= 3;
+                    /*
+                     * We got a good one; return it.
+                     */
+                    return spki;
+                }
+                break;
+            case dhKey: /* later... */
+
+                break;
+            default:
+                break;
+        }
+    } else {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+    }
+
+    PORT_FreeArena(arena, PR_FALSE);
+    return NULL;
+}
+
+CERTSubjectPublicKeyInfo *
+SECKEY_CreateSubjectPublicKeyInfo(const SECKEYPublicKey *pubk)
+{
+    CERTSubjectPublicKeyInfo *spki;
+    SECKEYPublicKey *tempKey;
+
+    if (!pubk) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return NULL;
+    }
+
+    tempKey = SECKEY_CopyPublicKey(pubk);
+    if (!tempKey) {
+        return NULL;
+    }
+    spki = seckey_CreateSubjectPublicKeyInfo_helper(tempKey);
+    SECKEY_DestroyPublicKey(tempKey);
+    return spki;
+}
+
+void
+SECKEY_DestroySubjectPublicKeyInfo(CERTSubjectPublicKeyInfo *spki)
+{
+    if (spki && spki->arena) {
+        PORT_FreeArena(spki->arena, PR_FALSE);
+    }
+}
+
+SECItem *
+SECKEY_EncodeDERSubjectPublicKeyInfo(const SECKEYPublicKey *pubk)
+{
+    CERTSubjectPublicKeyInfo *spki = NULL;
+    SECItem *spkiDER = NULL;
+
+    /* get the subjectpublickeyinfo */
+    spki = SECKEY_CreateSubjectPublicKeyInfo(pubk);
+    if (spki == NULL) {
+        goto finish;
+    }
+
+    /* DER-encode the subjectpublickeyinfo */
+    spkiDER = SEC_ASN1EncodeItem(NULL /*arena*/, NULL /*dest*/, spki,
+                                 CERT_SubjectPublicKeyInfoTemplate);
+
+    SECKEY_DestroySubjectPublicKeyInfo(spki);
+
+finish:
+    return spkiDER;
+}
+
+CERTSubjectPublicKeyInfo *
+SECKEY_DecodeDERSubjectPublicKeyInfo(const SECItem *spkider)
+{
+    PLArenaPool *arena;
+    CERTSubjectPublicKeyInfo *spki;
+    SECStatus rv;
+    SECItem newSpkider;
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        return NULL;
+    }
+
+    spki = (CERTSubjectPublicKeyInfo *)
+        PORT_ArenaZAlloc(arena, sizeof(CERTSubjectPublicKeyInfo));
+    if (spki != NULL) {
+        spki->arena = arena;
+
+        /* copy the DER into the arena, since Quick DER returns data that points
+           into the DER input, which may get freed by the caller */
+        rv = SECITEM_CopyItem(arena, &newSpkider, spkider);
+        if (rv == SECSuccess) {
+            rv = SEC_QuickDERDecodeItem(arena, spki,
+                                        CERT_SubjectPublicKeyInfoTemplate, &newSpkider);
+        }
+        if (rv == SECSuccess)
+            return spki;
+    } else {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+    }
+
+    PORT_FreeArena(arena, PR_FALSE);
+    return NULL;
+}
+
+/*
+ * Decode a base64 ascii encoded DER encoded subject public key info.
+ */
+CERTSubjectPublicKeyInfo *
+SECKEY_ConvertAndDecodeSubjectPublicKeyInfo(const char *spkistr)
+{
+    CERTSubjectPublicKeyInfo *spki;
+    SECStatus rv;
+    SECItem der;
+
+    rv = ATOB_ConvertAsciiToItem(&der, spkistr);
+    if (rv != SECSuccess)
+        return NULL;
+
+    spki = SECKEY_DecodeDERSubjectPublicKeyInfo(&der);
+
+    PORT_Free(der.data);
+    return spki;
+}
+
+/*
+ * Decode a base64 ascii encoded DER encoded public key and challenge
+ * Verify digital signature and make sure challenge matches
+ */
+CERTSubjectPublicKeyInfo *
+SECKEY_ConvertAndDecodePublicKeyAndChallenge(char *pkacstr, char *challenge,
+                                             void *wincx)
+{
+    CERTSubjectPublicKeyInfo *spki = NULL;
+    CERTPublicKeyAndChallenge pkac;
+    SECStatus rv;
+    SECItem signedItem;
+    PLArenaPool *arena = NULL;
+    CERTSignedData sd;
+    SECItem sig;
+    SECKEYPublicKey *pubKey = NULL;
+    unsigned int len;
+
+    signedItem.data = NULL;
+
+    /* convert the base64 encoded data to binary */
+    rv = ATOB_ConvertAsciiToItem(&signedItem, pkacstr);
+    if (rv != SECSuccess) {
+        goto loser;
+    }
+
+    /* create an arena */
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        goto loser;
+    }
+
+    /* decode the outer wrapping of signed data */
+    PORT_Memset(&sd, 0, sizeof(CERTSignedData));
+    rv = SEC_QuickDERDecodeItem(arena, &sd, CERT_SignedDataTemplate, &signedItem);
+    if (rv) {
+        goto loser;
+    }
+
+    /* decode the public key and challenge wrapper */
+    PORT_Memset(&pkac, 0, sizeof(CERTPublicKeyAndChallenge));
+    rv = SEC_QuickDERDecodeItem(arena, &pkac, CERT_PublicKeyAndChallengeTemplate,
+                                &sd.data);
+    if (rv) {
+        goto loser;
+    }
+
+    /* decode the subject public key info */
+    spki = SECKEY_DecodeDERSubjectPublicKeyInfo(&pkac.spki);
+    if (spki == NULL) {
+        goto loser;
+    }
+
+    /* get the public key */
+    pubKey = seckey_ExtractPublicKey(spki);
+    if (pubKey == NULL) {
+        goto loser;
+    }
+
+    /* check the signature */
+    sig = sd.signature;
+    DER_ConvertBitString(&sig);
+    rv = VFY_VerifyDataWithAlgorithmID(sd.data.data, sd.data.len, pubKey, &sig,
+                                       &(sd.signatureAlgorithm), NULL, wincx);
+    if (rv != SECSuccess) {
+        goto loser;
+    }
+
+    /* check the challenge */
+    if (challenge) {
+        len = PORT_Strlen(challenge);
+        /* length is right */
+        if (len != pkac.challenge.len) {
+            goto loser;
+        }
+        /* actual data is right */
+        if (PORT_Memcmp(challenge, pkac.challenge.data, len) != 0) {
+            goto loser;
+        }
+    }
+    goto done;
+
+loser:
+    /* make sure that we return null if we got an error */
+    if (spki) {
+        SECKEY_DestroySubjectPublicKeyInfo(spki);
+    }
+    spki = NULL;
+
+done:
+    if (signedItem.data) {
+        PORT_Free(signedItem.data);
+    }
+    if (arena) {
+        PORT_FreeArena(arena, PR_FALSE);
+    }
+    if (pubKey) {
+        SECKEY_DestroyPublicKey(pubKey);
+    }
+
+    return spki;
+}
+
+void
+SECKEY_DestroyPrivateKeyInfo(SECKEYPrivateKeyInfo *pvk,
+                             PRBool freeit)
+{
+    PLArenaPool *poolp;
+
+    if (pvk != NULL) {
+        if (pvk->arena) {
+            poolp = pvk->arena;
+            /* zero structure since PORT_FreeArena does not support
+             * this yet.
+             */
+            PORT_Memset(pvk->privateKey.data, 0, pvk->privateKey.len);
+            PORT_Memset(pvk, 0, sizeof(*pvk));
+            if (freeit == PR_TRUE) {
+                PORT_FreeArena(poolp, PR_TRUE);
+            } else {
+                pvk->arena = poolp;
+            }
+        } else {
+            SECITEM_ZfreeItem(&pvk->version, PR_FALSE);
+            SECITEM_ZfreeItem(&pvk->privateKey, PR_FALSE);
+            SECOID_DestroyAlgorithmID(&pvk->algorithm, PR_FALSE);
+            PORT_Memset(pvk, 0, sizeof(*pvk));
+            if (freeit == PR_TRUE) {
+                PORT_Free(pvk);
+            }
+        }
+    }
+}
+
+void
+SECKEY_DestroyEncryptedPrivateKeyInfo(SECKEYEncryptedPrivateKeyInfo *epki,
+                                      PRBool freeit)
+{
+    PLArenaPool *poolp;
+
+    if (epki != NULL) {
+        if (epki->arena) {
+            poolp = epki->arena;
+            /* zero structure since PORT_FreeArena does not support
+             * this yet.
+             */
+            PORT_Memset(epki->encryptedData.data, 0, epki->encryptedData.len);
+            PORT_Memset(epki, 0, sizeof(*epki));
+            if (freeit == PR_TRUE) {
+                PORT_FreeArena(poolp, PR_TRUE);
+            } else {
+                epki->arena = poolp;
+            }
+        } else {
+            SECITEM_ZfreeItem(&epki->encryptedData, PR_FALSE);
+            SECOID_DestroyAlgorithmID(&epki->algorithm, PR_FALSE);
+            PORT_Memset(epki, 0, sizeof(*epki));
+            if (freeit == PR_TRUE) {
+                PORT_Free(epki);
+            }
+        }
+    }
+}
+
+SECStatus
+SECKEY_CopyPrivateKeyInfo(PLArenaPool *poolp,
+                          SECKEYPrivateKeyInfo *to,
+                          const SECKEYPrivateKeyInfo *from)
+{
+    SECStatus rv = SECFailure;
+
+    if ((to == NULL) || (from == NULL)) {
+        return SECFailure;
+    }
+
+    rv = SECOID_CopyAlgorithmID(poolp, &to->algorithm, &from->algorithm);
+    if (rv != SECSuccess) {
+        return SECFailure;
+    }
+    rv = SECITEM_CopyItem(poolp, &to->privateKey, &from->privateKey);
+    if (rv != SECSuccess) {
+        return SECFailure;
+    }
+    rv = SECITEM_CopyItem(poolp, &to->version, &from->version);
+
+    return rv;
+}
+
+SECStatus
+SECKEY_CopyEncryptedPrivateKeyInfo(PLArenaPool *poolp,
+                                   SECKEYEncryptedPrivateKeyInfo *to,
+                                   const SECKEYEncryptedPrivateKeyInfo *from)
+{
+    SECStatus rv = SECFailure;
+
+    if ((to == NULL) || (from == NULL)) {
+        return SECFailure;
+    }
+
+    rv = SECOID_CopyAlgorithmID(poolp, &to->algorithm, &from->algorithm);
+    if (rv != SECSuccess) {
+        return SECFailure;
+    }
+    rv = SECITEM_CopyItem(poolp, &to->encryptedData, &from->encryptedData);
+
+    return rv;
+}
+
+KeyType
+SECKEY_GetPrivateKeyType(const SECKEYPrivateKey *privKey)
+{
+    return privKey->keyType;
+}
+
+KeyType
+SECKEY_GetPublicKeyType(const SECKEYPublicKey *pubKey)
+{
+    return pubKey->keyType;
+}
+
+SECKEYPublicKey *
+SECKEY_ImportDERPublicKey(const SECItem *derKey, CK_KEY_TYPE type)
+{
+    SECKEYPublicKey *pubk = NULL;
+    SECStatus rv = SECFailure;
+    SECItem newDerKey;
+    PLArenaPool *arena = NULL;
+
+    if (!derKey) {
+        return NULL;
+    }
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        PORT_SetError(SEC_ERROR_NO_MEMORY);
+        goto finish;
+    }
+
+    pubk = PORT_ArenaZNew(arena, SECKEYPublicKey);
+    if (pubk == NULL) {
+        goto finish;
+    }
+    pubk->arena = arena;
+
+    rv = SECITEM_CopyItem(pubk->arena, &newDerKey, derKey);
+    if (SECSuccess != rv) {
+        goto finish;
+    }
+
+    pubk->pkcs11Slot = NULL;
+    pubk->pkcs11ID = CK_INVALID_HANDLE;
+
+    switch (type) {
+        case CKK_RSA:
+            prepare_rsa_pub_key_for_asn1(pubk);
+            rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_RSAPublicKeyTemplate, &newDerKey);
+            pubk->keyType = rsaKey;
+            break;
+        case CKK_DSA:
+            prepare_dsa_pub_key_for_asn1(pubk);
+            rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_DSAPublicKeyTemplate, &newDerKey);
+            pubk->keyType = dsaKey;
+            break;
+        case CKK_DH:
+            prepare_dh_pub_key_for_asn1(pubk);
+            rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_DHPublicKeyTemplate, &newDerKey);
+            pubk->keyType = dhKey;
+            break;
+        default:
+            rv = SECFailure;
+            break;
+    }
+
+finish:
+    if (rv != SECSuccess) {
+        if (arena != NULL) {
+            PORT_FreeArena(arena, PR_FALSE);
+        }
+        pubk = NULL;
+    }
+    return pubk;
+}
+
+SECKEYPrivateKeyList *
+SECKEY_NewPrivateKeyList(void)
+{
+    PLArenaPool *arena = NULL;
+    SECKEYPrivateKeyList *ret = NULL;
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        goto loser;
+    }
+
+    ret = (SECKEYPrivateKeyList *)PORT_ArenaZAlloc(arena,
+                                                   sizeof(SECKEYPrivateKeyList));
+    if (ret == NULL) {
+        goto loser;
+    }
+
+    ret->arena = arena;
+
+    PR_INIT_CLIST(&ret->list);
+
+    return (ret);
+
+loser:
+    if (arena != NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+    }
+
+    return (NULL);
+}
+
+void
+SECKEY_DestroyPrivateKeyList(SECKEYPrivateKeyList *keys)
+{
+    while (!PR_CLIST_IS_EMPTY(&keys->list)) {
+        SECKEY_RemovePrivateKeyListNode(
+            (SECKEYPrivateKeyListNode *)(PR_LIST_HEAD(&keys->list)));
+    }
+
+    PORT_FreeArena(keys->arena, PR_FALSE);
+
+    return;
+}
+
+void
+SECKEY_RemovePrivateKeyListNode(SECKEYPrivateKeyListNode *node)
+{
+    PR_ASSERT(node->key);
+    SECKEY_DestroyPrivateKey(node->key);
+    node->key = NULL;
+    PR_REMOVE_LINK(&node->links);
+    return;
+}
+
+SECStatus
+SECKEY_AddPrivateKeyToListTail(SECKEYPrivateKeyList *list,
+                               SECKEYPrivateKey *key)
+{
+    SECKEYPrivateKeyListNode *node;
+
+    node = (SECKEYPrivateKeyListNode *)PORT_ArenaZAlloc(list->arena,
+                                                        sizeof(SECKEYPrivateKeyListNode));
+    if (node == NULL) {
+        goto loser;
+    }
+
+    PR_INSERT_BEFORE(&node->links, &list->list);
+    node->key = key;
+    return (SECSuccess);
+
+loser:
+    return (SECFailure);
+}
+
+SECKEYPublicKeyList *
+SECKEY_NewPublicKeyList(void)
+{
+    PLArenaPool *arena = NULL;
+    SECKEYPublicKeyList *ret = NULL;
+
+    arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+    if (arena == NULL) {
+        goto loser;
+    }
+
+    ret = (SECKEYPublicKeyList *)PORT_ArenaZAlloc(arena,
+                                                  sizeof(SECKEYPublicKeyList));
+    if (ret == NULL) {
+        goto loser;
+    }
+
+    ret->arena = arena;
+
+    PR_INIT_CLIST(&ret->list);
+
+    return (ret);
+
+loser:
+    if (arena != NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+    }
+
+    return (NULL);
+}
+
+void
+SECKEY_DestroyPublicKeyList(SECKEYPublicKeyList *keys)
+{
+    while (!PR_CLIST_IS_EMPTY(&keys->list)) {
+        SECKEY_RemovePublicKeyListNode(
+            (SECKEYPublicKeyListNode *)(PR_LIST_HEAD(&keys->list)));
+    }
+
+    PORT_FreeArena(keys->arena, PR_FALSE);
+
+    return;
+}
+
+void
+SECKEY_RemovePublicKeyListNode(SECKEYPublicKeyListNode *node)
+{
+    PR_ASSERT(node->key);
+    SECKEY_DestroyPublicKey(node->key);
+    node->key = NULL;
+    PR_REMOVE_LINK(&node->links);
+    return;
+}
+
+SECStatus
+SECKEY_AddPublicKeyToListTail(SECKEYPublicKeyList *list,
+                              SECKEYPublicKey *key)
+{
+    SECKEYPublicKeyListNode *node;
+
+    node = (SECKEYPublicKeyListNode *)PORT_ArenaZAlloc(list->arena,
+                                                       sizeof(SECKEYPublicKeyListNode));
+    if (node == NULL) {
+        goto loser;
+    }
+
+    PR_INSERT_BEFORE(&node->links, &list->list);
+    node->key = key;
+    return (SECSuccess);
+
+loser:
+    return (SECFailure);
+}
+
+#define SECKEY_CacheAttribute(key, attribute)                                                   \
+    if (CK_TRUE == PK11_HasAttributeSet(key->pkcs11Slot, key->pkcs11ID, attribute, PR_FALSE)) { \
+        key->staticflags |= SECKEY_##attribute;                                                 \
+    } else {                                                                                    \
+        key->staticflags &= (~SECKEY_##attribute);                                              \
+    }
+
+SECStatus
+SECKEY_CacheStaticFlags(SECKEYPrivateKey *key)
+{
+    SECStatus rv = SECFailure;
+    if (key && key->pkcs11Slot && key->pkcs11ID) {
+        key->staticflags |= SECKEY_Attributes_Cached;
+        SECKEY_CacheAttribute(key, CKA_PRIVATE);
+        SECKEY_CacheAttribute(key, CKA_ALWAYS_AUTHENTICATE);
+        rv = SECSuccess;
+    }
+    return rv;
+}
+
+SECOidTag
+SECKEY_GetECCOid(const SECKEYECParams *params)
+{
+    SECItem oid = { siBuffer, NULL, 0 };
+    SECOidData *oidData = NULL;
+
+    /*
+     * params->data needs to contain the ASN encoding of an object ID (OID)
+     * representing a named curve. Here, we strip away everything
+     * before the actual OID and use the OID to look up a named curve.
+     */
+    if (params->data[0] != SEC_ASN1_OBJECT_ID)
+        return 0;
+    oid.len = params->len - 2;
+    oid.data = params->data + 2;
+    if ((oidData = SECOID_FindOID(&oid)) == NULL)
+        return 0;
+
+    return oidData->offset;
+}
+
+static CK_MECHANISM_TYPE
+sec_GetHashMechanismByOidTag(SECOidTag tag)
+{
+    switch (tag) {
+        case SEC_OID_SHA512:
+            return CKM_SHA512;
+        case SEC_OID_SHA384:
+            return CKM_SHA384;
+        case SEC_OID_SHA256:
+            return CKM_SHA256;
+        case SEC_OID_SHA224:
+            return CKM_SHA224;
+        case SEC_OID_SHA1:
+            return CKM_SHA_1;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return CKM_INVALID_MECHANISM;
+    }
+}
+
+static CK_RSA_PKCS_MGF_TYPE
+sec_GetMgfTypeByOidTag(SECOidTag tag)
+{
+    switch (tag) {
+        case SEC_OID_SHA512:
+            return CKG_MGF1_SHA512;
+        case SEC_OID_SHA384:
+            return CKG_MGF1_SHA384;
+        case SEC_OID_SHA256:
+            return CKG_MGF1_SHA256;
+        case SEC_OID_SHA224:
+            return CKG_MGF1_SHA224;
+        case SEC_OID_SHA1:
+            return CKG_MGF1_SHA1;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return 0;
+    }
+}
+
+SECStatus
+sec_DecodeRSAPSSParams(PLArenaPool *arena,
+                       const SECItem *params,
+                       SECOidTag *retHashAlg, SECOidTag *retMaskHashAlg,
+                       unsigned long *retSaltLength)
+{
+    SECKEYRSAPSSParams pssParams;
+    SECOidTag hashAlg;
+    SECOidTag maskHashAlg;
+    unsigned long saltLength;
+    unsigned long trailerField;
+    SECStatus rv;
+
+    PORT_Memset(&pssParams, 0, sizeof(pssParams));
+    rv = SEC_QuickDERDecodeItem(arena, &pssParams,
+                                SECKEY_RSAPSSParamsTemplate,
+                                params);
+    if (rv != SECSuccess) {
+        return rv;
+    }
+
+    if (pssParams.hashAlg) {
+        hashAlg = SECOID_GetAlgorithmTag(pssParams.hashAlg);
+    } else {
+        hashAlg = SEC_OID_SHA1; /* default, SHA-1 */
+    }
+
+    if (pssParams.maskAlg) {
+        SECAlgorithmID algId;
+
+        if (SECOID_GetAlgorithmTag(pssParams.maskAlg) != SEC_OID_PKCS1_MGF1) {
+            /* only MGF1 is known to PKCS#11 */
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return SECFailure;
+        }
+
+        rv = SEC_QuickDERDecodeItem(arena, &algId,
+                                    SEC_ASN1_GET(SECOID_AlgorithmIDTemplate),
+                                    &pssParams.maskAlg->parameters);
+        if (rv != SECSuccess) {
+            return rv;
+        }
+        maskHashAlg = SECOID_GetAlgorithmTag(&algId);
+    } else {
+        maskHashAlg = SEC_OID_SHA1; /* default, MGF1 with SHA-1 */
+    }
+
+    if (pssParams.saltLength.data) {
+        rv = SEC_ASN1DecodeInteger((SECItem *)&pssParams.saltLength, &saltLength);
+        if (rv != SECSuccess) {
+            return rv;
+        }
+    } else {
+        saltLength = 20; /* default, 20 */
+    }
+
+    if (pssParams.trailerField.data) {
+        rv = SEC_ASN1DecodeInteger((SECItem *)&pssParams.trailerField, &trailerField);
+        if (rv != SECSuccess) {
+            return rv;
+        }
+        if (trailerField != 1) {
+            /* the value must be 1, which represents the trailer field
+             * with hexadecimal value 0xBC */
+            PORT_SetError(SEC_ERROR_INVALID_ARGS);
+            return SECFailure;
+        }
+    }
+
+    if (retHashAlg) {
+        *retHashAlg = hashAlg;
+    }
+    if (retMaskHashAlg) {
+        *retMaskHashAlg = maskHashAlg;
+    }
+    if (retSaltLength) {
+        *retSaltLength = saltLength;
+    }
+
+    return SECSuccess;
+}
+
+SECStatus
+sec_DecodeRSAPSSParamsToMechanism(PLArenaPool *arena,
+                                  const SECItem *params,
+                                  CK_RSA_PKCS_PSS_PARAMS *mech)
+{
+    SECOidTag hashAlg;
+    SECOidTag maskHashAlg;
+    unsigned long saltLength;
+    SECStatus rv;
+
+    rv = sec_DecodeRSAPSSParams(arena, params,
+                                &hashAlg, &maskHashAlg, &saltLength);
+    if (rv != SECSuccess) {
+        return SECFailure;
+    }
+
+    mech->hashAlg = sec_GetHashMechanismByOidTag(hashAlg);
+    if (mech->hashAlg == CKM_INVALID_MECHANISM) {
+        return SECFailure;
+    }
+
+    mech->mgf = sec_GetMgfTypeByOidTag(maskHashAlg);
+    if (mech->mgf == 0) {
+        return SECFailure;
+    }
+
+    mech->sLen = saltLength;
+
+    return SECSuccess;
+}
diff --git a/security/nss/lib/cryptohi/secsign.c b/security/nss/lib/cryptohi/secsign.c
new file mode 100644
index 0000000000..8779904d35
--- /dev/null
+++ b/security/nss/lib/cryptohi/secsign.c
@@ -0,0 +1,884 @@
+/*
+ * Signature stuff.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+#include "cryptohi.h"
+#include "sechash.h"
+#include "secder.h"
+#include "keyhi.h"
+#include "secoid.h"
+#include "secdig.h"
+#include "pk11func.h"
+#include "secerr.h"
+#include "keyi.h"
+#include "nss.h"
+
+struct SGNContextStr {
+    SECOidTag signalg;
+    SECOidTag hashalg;
+    void *hashcx;
+    const SECHashObject *hashobj;
+    SECKEYPrivateKey *key;
+    SECItem *params;
+};
+
+static SGNContext *
+sgn_NewContext(SECOidTag alg, SECItem *params, SECKEYPrivateKey *key)
+{
+    SGNContext *cx;
+    SECOidTag hashalg, signalg;
+    KeyType keyType;
+    PRUint32 policyFlags;
+    PRInt32 optFlags;
+    SECStatus rv;
+
+    /* OK, map a PKCS #7 hash and encrypt algorithm into
+     * a standard hashing algorithm. Why did we pass in the whole
+     * PKCS #7 algTag if we were just going to change here you might
+     * ask. Well the answer is for some cards we may have to do the
+     * hashing on card. It may not support CKM_RSA_PKCS sign algorithm,
+     * it may just support CKM_SHA1_RSA_PKCS and/or CKM_MD5_RSA_PKCS.
+     */
+    /* we have a private key, not a public key, so don't pass it in */
+    rv = sec_DecodeSigAlg(NULL, alg, params, &signalg, &hashalg);
+    if (rv != SECSuccess) {
+        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+        return NULL;
+    }
+    keyType = seckey_GetKeyType(signalg);
+
+    /* verify our key type */
+    if (key->keyType != keyType &&
+        !((key->keyType == dsaKey) && (keyType == fortezzaKey)) &&
+        !((key->keyType == rsaKey) && (keyType == rsaPssKey))) {
+        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+        return NULL;
+    }
+    if (NSS_OptionGet(NSS_KEY_SIZE_POLICY_FLAGS, &optFlags) != SECFailure) {
+        if (optFlags & NSS_KEY_SIZE_POLICY_SIGN_FLAG) {
+            rv = seckey_EnforceKeySize(key->keyType,
+                                       SECKEY_PrivateKeyStrengthInBits(key),
+                                       SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+            if (rv != SECSuccess) {
+                return NULL;
+            }
+        }
+    }
+    /* check the policy on the hash algorithm */
+    if ((NSS_GetAlgorithmPolicy(hashalg, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        return NULL;
+    }
+    /* check the policy on the encryption algorithm */
+    if ((NSS_GetAlgorithmPolicy(signalg, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        return NULL;
+    }
+
+    cx = (SGNContext *)PORT_ZAlloc(sizeof(SGNContext));
+    if (cx) {
+        cx->hashalg = hashalg;
+        cx->signalg = signalg;
+        cx->key = key;
+        cx->params = params;
+    }
+    return cx;
+}
+
+SGNContext *
+SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *key)
+{
+    return sgn_NewContext(alg, NULL, key);
+}
+
+SGNContext *
+SGN_NewContextWithAlgorithmID(SECAlgorithmID *alg, SECKEYPrivateKey *key)
+{
+    SECOidTag tag = SECOID_GetAlgorithmTag(alg);
+    return sgn_NewContext(tag, &alg->parameters, key);
+}
+
+void
+SGN_DestroyContext(SGNContext *cx, PRBool freeit)
+{
+    if (cx) {
+        if (cx->hashcx != NULL) {
+            (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE);
+            cx->hashcx = NULL;
+        }
+        if (freeit) {
+            PORT_ZFree(cx, sizeof(SGNContext));
+        }
+    }
+}
+
+SECStatus
+SGN_Begin(SGNContext *cx)
+{
+    if (cx->hashcx != NULL) {
+        (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE);
+        cx->hashcx = NULL;
+    }
+
+    cx->hashobj = HASH_GetHashObjectByOidTag(cx->hashalg);
+    if (!cx->hashobj)
+        return SECFailure; /* error code is already set */
+
+    cx->hashcx = (*cx->hashobj->create)();
+    if (cx->hashcx == NULL)
+        return SECFailure;
+
+    (*cx->hashobj->begin)(cx->hashcx);
+    return SECSuccess;
+}
+
+SECStatus
+SGN_Update(SGNContext *cx, const unsigned char *input, unsigned int inputLen)
+{
+    if (cx->hashcx == NULL) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+    (*cx->hashobj->update)(cx->hashcx, input, inputLen);
+    return SECSuccess;
+}
+
+/* XXX Old template; want to expunge it eventually. */
+static DERTemplate SECAlgorithmIDTemplate[] = {
+    { DER_SEQUENCE,
+      0, NULL, sizeof(SECAlgorithmID) },
+    { DER_OBJECT_ID,
+      offsetof(SECAlgorithmID, algorithm) },
+    { DER_OPTIONAL | DER_ANY,
+      offsetof(SECAlgorithmID, parameters) },
+    { 0 }
+};
+
+/*
+ * XXX OLD Template.  Once all uses have been switched over to new one,
+ * remove this.
+ */
+static DERTemplate SGNDigestInfoTemplate[] = {
+    { DER_SEQUENCE,
+      0, NULL, sizeof(SGNDigestInfo) },
+    { DER_INLINE,
+      offsetof(SGNDigestInfo, digestAlgorithm),
+      SECAlgorithmIDTemplate },
+    { DER_OCTET_STRING,
+      offsetof(SGNDigestInfo, digest) },
+    { 0 }
+};
+
+SECStatus
+SGN_End(SGNContext *cx, SECItem *result)
+{
+    unsigned char digest[HASH_LENGTH_MAX];
+    unsigned part1;
+    int signatureLen;
+    SECStatus rv;
+    SECItem digder, sigitem;
+    PLArenaPool *arena = 0;
+    SECKEYPrivateKey *privKey = cx->key;
+    SGNDigestInfo *di = 0;
+
+    result->data = 0;
+    digder.data = 0;
+    sigitem.data = 0;
+
+    /* Finish up digest function */
+    if (cx->hashcx == NULL) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+    (*cx->hashobj->end)(cx->hashcx, digest, &part1, sizeof(digest));
+
+    if (privKey->keyType == rsaKey &&
+        cx->signalg != SEC_OID_PKCS1_RSA_PSS_SIGNATURE) {
+
+        arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+        if (!arena) {
+            rv = SECFailure;
+            goto loser;
+        }
+
+        /* Construct digest info */
+        di = SGN_CreateDigestInfo(cx->hashalg, digest, part1);
+        if (!di) {
+            rv = SECFailure;
+            goto loser;
+        }
+
+        /* Der encode the digest as a DigestInfo */
+        rv = DER_Encode(arena, &digder, SGNDigestInfoTemplate,
+                        di);
+        if (rv != SECSuccess) {
+            goto loser;
+        }
+    } else {
+        digder.data = digest;
+        digder.len = part1;
+    }
+
+    /*
+    ** Encrypt signature after constructing appropriate PKCS#1 signature
+    ** block
+    */
+    signatureLen = PK11_SignatureLen(privKey);
+    if (signatureLen <= 0) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        rv = SECFailure;
+        goto loser;
+    }
+    sigitem.len = signatureLen;
+    sigitem.data = (unsigned char *)PORT_Alloc(signatureLen);
+
+    if (sigitem.data == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    if (cx->signalg == SEC_OID_PKCS1_RSA_PSS_SIGNATURE) {
+        CK_RSA_PKCS_PSS_PARAMS mech;
+        SECItem mechItem = { siBuffer, (unsigned char *)&mech, sizeof(mech) };
+
+        PORT_Memset(&mech, 0, sizeof(mech));
+
+        if (cx->params && cx->params->data) {
+            arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+            if (!arena) {
+                rv = SECFailure;
+                goto loser;
+            }
+
+            rv = sec_DecodeRSAPSSParamsToMechanism(arena, cx->params, &mech);
+            if (rv != SECSuccess) {
+                goto loser;
+            }
+        } else {
+            mech.hashAlg = CKM_SHA_1;
+            mech.mgf = CKG_MGF1_SHA1;
+            mech.sLen = digder.len;
+        }
+        rv = PK11_SignWithMechanism(privKey, CKM_RSA_PKCS_PSS, &mechItem,
+                                    &sigitem, &digder);
+        if (rv != SECSuccess) {
+            goto loser;
+        }
+    } else {
+        rv = PK11_Sign(privKey, &sigitem, &digder);
+        if (rv != SECSuccess) {
+            goto loser;
+        }
+    }
+
+    if ((cx->signalg == SEC_OID_ANSIX9_DSA_SIGNATURE) ||
+        (cx->signalg == SEC_OID_ANSIX962_EC_PUBLIC_KEY)) {
+        /* DSAU_EncodeDerSigWithLen works for DSA and ECDSA */
+        rv = DSAU_EncodeDerSigWithLen(result, &sigitem, sigitem.len);
+        if (rv != SECSuccess)
+            goto loser;
+        SECITEM_FreeItem(&sigitem, PR_FALSE);
+    } else {
+        result->len = sigitem.len;
+        result->data = sigitem.data;
+    }
+
+loser:
+    if (rv != SECSuccess) {
+        SECITEM_FreeItem(&sigitem, PR_FALSE);
+    }
+    SGN_DestroyDigestInfo(di);
+    if (arena != NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+    }
+    return rv;
+}
+
+/************************************************************************/
+
+static SECStatus
+sec_SignData(SECItem *res, const unsigned char *buf, int len,
+             SECKEYPrivateKey *pk, SECOidTag algid, SECItem *params)
+{
+    SECStatus rv;
+    SGNContext *sgn;
+
+    sgn = sgn_NewContext(algid, params, pk);
+
+    if (sgn == NULL)
+        return SECFailure;
+
+    rv = SGN_Begin(sgn);
+    if (rv != SECSuccess)
+        goto loser;
+
+    rv = SGN_Update(sgn, buf, len);
+    if (rv != SECSuccess)
+        goto loser;
+
+    rv = SGN_End(sgn, res);
+
+loser:
+    SGN_DestroyContext(sgn, PR_TRUE);
+    return rv;
+}
+
+/*
+** Sign a block of data returning in result a bunch of bytes that are the
+** signature. Returns zero on success, an error code on failure.
+*/
+SECStatus
+SEC_SignData(SECItem *res, const unsigned char *buf, int len,
+             SECKEYPrivateKey *pk, SECOidTag algid)
+{
+    return sec_SignData(res, buf, len, pk, algid, NULL);
+}
+
+SECStatus
+SEC_SignDataWithAlgorithmID(SECItem *res, const unsigned char *buf, int len,
+                            SECKEYPrivateKey *pk, SECAlgorithmID *algid)
+{
+    SECOidTag tag = SECOID_GetAlgorithmTag(algid);
+    return sec_SignData(res, buf, len, pk, tag, &algid->parameters);
+}
+
+/************************************************************************/
+
+DERTemplate CERTSignedDataTemplate[] = {
+    { DER_SEQUENCE,
+      0, NULL, sizeof(CERTSignedData) },
+    { DER_ANY,
+      offsetof(CERTSignedData, data) },
+    { DER_INLINE,
+      offsetof(CERTSignedData, signatureAlgorithm),
+      SECAlgorithmIDTemplate },
+    { DER_BIT_STRING,
+      offsetof(CERTSignedData, signature) },
+    { 0 }
+};
+
+SEC_ASN1_MKSUB(SECOID_AlgorithmIDTemplate)
+
+const SEC_ASN1Template CERT_SignedDataTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(CERTSignedData) },
+    { SEC_ASN1_ANY,
+      offsetof(CERTSignedData, data) },
+    { SEC_ASN1_INLINE | SEC_ASN1_XTRN,
+      offsetof(CERTSignedData, signatureAlgorithm),
+      SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) },
+    { SEC_ASN1_BIT_STRING,
+      offsetof(CERTSignedData, signature) },
+    { 0 }
+};
+
+SEC_ASN1_CHOOSER_IMPLEMENT(CERT_SignedDataTemplate)
+
+static SECStatus
+sec_DerSignData(PLArenaPool *arena, SECItem *result,
+                const unsigned char *buf, int len, SECKEYPrivateKey *pk,
+                SECOidTag algID, SECItem *params)
+{
+    SECItem it;
+    CERTSignedData sd;
+    SECStatus rv;
+
+    it.data = 0;
+
+    /* XXX We should probably have some asserts here to make sure the key type
+     * and algID match
+     */
+
+    if (algID == SEC_OID_UNKNOWN) {
+        switch (pk->keyType) {
+            case rsaKey:
+                algID = SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION;
+                break;
+            case dsaKey:
+                /* get Signature length (= q_len*2) and work from there */
+                switch (PK11_SignatureLen(pk)) {
+                    case 320:
+                        algID = SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST;
+                        break;
+                    case 448:
+                        algID = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST;
+                        break;
+                    case 512:
+                    default:
+                        algID = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST;
+                        break;
+                }
+                break;
+            case ecKey:
+                algID = SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE;
+                break;
+            default:
+                PORT_SetError(SEC_ERROR_INVALID_KEY);
+                return SECFailure;
+        }
+    }
+
+    /* Sign input buffer */
+    rv = sec_SignData(&it, buf, len, pk, algID, params);
+    if (rv)
+        goto loser;
+
+    /* Fill out SignedData object */
+    PORT_Memset(&sd, 0, sizeof(sd));
+    sd.data.data = (unsigned char *)buf;
+    sd.data.len = len;
+    sd.signature.data = it.data;
+    sd.signature.len = it.len << 3; /* convert to bit string */
+    rv = SECOID_SetAlgorithmID(arena, &sd.signatureAlgorithm, algID, params);
+    if (rv)
+        goto loser;
+
+    /* DER encode the signed data object */
+    rv = DER_Encode(arena, result, CERTSignedDataTemplate, &sd);
+    /* FALL THROUGH */
+
+loser:
+    PORT_Free(it.data);
+    return rv;
+}
+
+SECStatus
+SEC_DerSignData(PLArenaPool *arena, SECItem *result,
+                const unsigned char *buf, int len, SECKEYPrivateKey *pk,
+                SECOidTag algID)
+{
+    return sec_DerSignData(arena, result, buf, len, pk, algID, NULL);
+}
+
+SECStatus
+SEC_DerSignDataWithAlgorithmID(PLArenaPool *arena, SECItem *result,
+                               const unsigned char *buf, int len,
+                               SECKEYPrivateKey *pk,
+                               SECAlgorithmID *algID)
+{
+    SECOidTag tag = SECOID_GetAlgorithmTag(algID);
+    return sec_DerSignData(arena, result, buf, len, pk, tag, &algID->parameters);
+}
+
+SECStatus
+SGN_Digest(SECKEYPrivateKey *privKey,
+           SECOidTag algtag, SECItem *result, SECItem *digest)
+{
+    int modulusLen;
+    SECStatus rv;
+    SECItem digder;
+    PLArenaPool *arena = 0;
+    SGNDigestInfo *di = 0;
+    SECOidTag enctag;
+    PRUint32 policyFlags;
+    PRInt32 optFlags;
+
+    result->data = 0;
+
+    if (NSS_OptionGet(NSS_KEY_SIZE_POLICY_FLAGS, &optFlags) != SECFailure) {
+        if (optFlags & NSS_KEY_SIZE_POLICY_SIGN_FLAG) {
+            rv = seckey_EnforceKeySize(privKey->keyType,
+                                       SECKEY_PrivateKeyStrengthInBits(privKey),
+                                       SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+            if (rv != SECSuccess) {
+                return SECFailure;
+            }
+        }
+    }
+    /* check the policy on the hash algorithm */
+    if ((NSS_GetAlgorithmPolicy(algtag, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        return SECFailure;
+    }
+    /* check the policy on the encryption algorithm */
+    enctag = sec_GetEncAlgFromSigAlg(
+        SEC_GetSignatureAlgorithmOidTag(privKey->keyType, algtag));
+    if ((enctag == SEC_OID_UNKNOWN) ||
+        (NSS_GetAlgorithmPolicy(enctag, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        return SECFailure;
+    }
+
+    if (privKey->keyType == rsaKey) {
+
+        arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+        if (!arena) {
+            rv = SECFailure;
+            goto loser;
+        }
+
+        /* Construct digest info */
+        di = SGN_CreateDigestInfo(algtag, digest->data, digest->len);
+        if (!di) {
+            rv = SECFailure;
+            goto loser;
+        }
+
+        /* Der encode the digest as a DigestInfo */
+        rv = DER_Encode(arena, &digder, SGNDigestInfoTemplate,
+                        di);
+        if (rv != SECSuccess) {
+            goto loser;
+        }
+    } else {
+        digder.data = digest->data;
+        digder.len = digest->len;
+    }
+
+    /*
+    ** Encrypt signature after constructing appropriate PKCS#1 signature
+    ** block
+    */
+    modulusLen = PK11_SignatureLen(privKey);
+    if (modulusLen <= 0) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        rv = SECFailure;
+        goto loser;
+    }
+    result->len = modulusLen;
+    result->data = (unsigned char *)PORT_Alloc(modulusLen);
+    result->type = siBuffer;
+
+    if (result->data == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    rv = PK11_Sign(privKey, result, &digder);
+    if (rv != SECSuccess) {
+        PORT_Free(result->data);
+        result->data = NULL;
+    }
+
+loser:
+    SGN_DestroyDigestInfo(di);
+    if (arena != NULL) {
+        PORT_FreeArena(arena, PR_FALSE);
+    }
+    return rv;
+}
+
+SECOidTag
+SEC_GetSignatureAlgorithmOidTag(KeyType keyType, SECOidTag hashAlgTag)
+{
+    SECOidTag sigTag = SEC_OID_UNKNOWN;
+
+    switch (keyType) {
+        case rsaKey:
+            switch (hashAlgTag) {
+                case SEC_OID_MD2:
+                    sigTag = SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_MD5:
+                    sigTag = SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_SHA1:
+                    sigTag = SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_SHA224:
+                    sigTag = SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_UNKNOWN: /* default for RSA if not specified */
+                case SEC_OID_SHA256:
+                    sigTag = SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_SHA384:
+                    sigTag = SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION;
+                    break;
+                case SEC_OID_SHA512:
+                    sigTag = SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION;
+                    break;
+                default:
+                    break;
+            }
+            break;
+        case dsaKey:
+            switch (hashAlgTag) {
+                case SEC_OID_SHA1:
+                    sigTag = SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST;
+                    break;
+                case SEC_OID_SHA224:
+                    sigTag = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST;
+                    break;
+                case SEC_OID_UNKNOWN: /* default for DSA if not specified */
+                case SEC_OID_SHA256:
+                    sigTag = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST;
+                    break;
+                default:
+                    break;
+            }
+            break;
+        case ecKey:
+            switch (hashAlgTag) {
+                case SEC_OID_SHA1:
+                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA1_SIGNATURE;
+                    break;
+                case SEC_OID_SHA224:
+                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA224_SIGNATURE;
+                    break;
+                case SEC_OID_UNKNOWN: /* default for ECDSA if not specified */
+                case SEC_OID_SHA256:
+                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE;
+                    break;
+                case SEC_OID_SHA384:
+                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA384_SIGNATURE;
+                    break;
+                case SEC_OID_SHA512:
+                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA512_SIGNATURE;
+                    break;
+                default:
+                    break;
+            }
+        default:
+            break;
+    }
+    return sigTag;
+}
+
+static SECItem *
+sec_CreateRSAPSSParameters(PLArenaPool *arena,
+                           SECItem *result,
+                           SECOidTag hashAlgTag,
+                           const SECItem *params,
+                           const SECKEYPrivateKey *key)
+{
+    SECKEYRSAPSSParams pssParams;
+    int modBytes, hashLength;
+    unsigned long saltLength;
+    PRBool defaultSHA1 = PR_FALSE;
+    SECStatus rv;
+
+    if (key->keyType != rsaKey && key->keyType != rsaPssKey) {
+        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+        return NULL;
+    }
+
+    PORT_Memset(&pssParams, 0, sizeof(pssParams));
+
+    if (params && params->data) {
+        /* The parameters field should either be empty or contain
+         * valid RSA-PSS parameters */
+        PORT_Assert(!(params->len == 2 &&
+                      params->data[0] == SEC_ASN1_NULL &&
+                      params->data[1] == 0));
+        rv = SEC_QuickDERDecodeItem(arena, &pssParams,
+                                    SECKEY_RSAPSSParamsTemplate,
+                                    params);
+        if (rv != SECSuccess) {
+            return NULL;
+        }
+        defaultSHA1 = PR_TRUE;
+    }
+
+    if (pssParams.trailerField.data) {
+        unsigned long trailerField;
+
+        rv = SEC_ASN1DecodeInteger((SECItem *)&pssParams.trailerField,
+                                   &trailerField);
+        if (rv != SECSuccess) {
+            return NULL;
+        }
+        if (trailerField != 1) {
+            PORT_SetError(SEC_ERROR_INVALID_ARGS);
+            return NULL;
+        }
+    }
+
+    modBytes = PK11_GetPrivateModulusLen((SECKEYPrivateKey *)key);
+
+    /* Determine the hash algorithm to use, based on hashAlgTag and
+     * pssParams.hashAlg; there are four cases */
+    if (hashAlgTag != SEC_OID_UNKNOWN) {
+        SECOidTag tag = SEC_OID_UNKNOWN;
+
+        if (pssParams.hashAlg) {
+            tag = SECOID_GetAlgorithmTag(pssParams.hashAlg);
+        } else if (defaultSHA1) {
+            tag = SEC_OID_SHA1;
+        }
+
+        if (tag != SEC_OID_UNKNOWN && tag != hashAlgTag) {
+            PORT_SetError(SEC_ERROR_INVALID_ARGS);
+            return NULL;
+        }
+    } else if (hashAlgTag == SEC_OID_UNKNOWN) {
+        if (pssParams.hashAlg) {
+            hashAlgTag = SECOID_GetAlgorithmTag(pssParams.hashAlg);
+        } else if (defaultSHA1) {
+            hashAlgTag = SEC_OID_SHA1;
+        } else {
+            /* Find a suitable hash algorithm based on the NIST recommendation */
+            if (modBytes <= 384) { /* 128, in NIST 800-57, Part 1 */
+                hashAlgTag = SEC_OID_SHA256;
+            } else if (modBytes <= 960) { /* 192, NIST 800-57, Part 1 */
+                hashAlgTag = SEC_OID_SHA384;
+            } else {
+                hashAlgTag = SEC_OID_SHA512;
+            }
+        }
+    }
+
+    if (hashAlgTag != SEC_OID_SHA1 && hashAlgTag != SEC_OID_SHA224 &&
+        hashAlgTag != SEC_OID_SHA256 && hashAlgTag != SEC_OID_SHA384 &&
+        hashAlgTag != SEC_OID_SHA512) {
+        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+        return NULL;
+    }
+
+    /* Now that the hash algorithm is decided, check if it matches the
+     * existing parameters if any */
+    if (pssParams.maskAlg) {
+        SECAlgorithmID maskHashAlg;
+
+        if (SECOID_GetAlgorithmTag(pssParams.maskAlg) != SEC_OID_PKCS1_MGF1) {
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return NULL;
+        }
+
+        if (pssParams.maskAlg->parameters.data == NULL) {
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return NULL;
+        }
+
+        PORT_Memset(&maskHashAlg, 0, sizeof(maskHashAlg));
+        rv = SEC_QuickDERDecodeItem(arena, &maskHashAlg,
+                                    SEC_ASN1_GET(SECOID_AlgorithmIDTemplate),
+                                    &pssParams.maskAlg->parameters);
+        if (rv != SECSuccess) {
+            return NULL;
+        }
+
+        /* Following the recommendation in RFC 4055, assume the hash
+         * algorithm identical to pssParam.hashAlg */
+        if (SECOID_GetAlgorithmTag(&maskHashAlg) != hashAlgTag) {
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return NULL;
+        }
+    } else if (defaultSHA1) {
+        if (hashAlgTag != SEC_OID_SHA1) {
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return NULL;
+        }
+    }
+
+    hashLength = HASH_ResultLenByOidTag(hashAlgTag);
+
+    if (pssParams.saltLength.data) {
+        rv = SEC_ASN1DecodeInteger((SECItem *)&pssParams.saltLength,
+                                   &saltLength);
+        if (rv != SECSuccess) {
+            return NULL;
+        }
+
+        /* The specified salt length is too long */
+        if (saltLength > (unsigned long)(modBytes - hashLength - 2)) {
+            PORT_SetError(SEC_ERROR_INVALID_ARGS);
+            return NULL;
+        }
+    } else if (defaultSHA1) {
+        saltLength = 20;
+    }
+
+    /* Fill in the parameters */
+    if (pssParams.hashAlg) {
+        if (hashAlgTag == SEC_OID_SHA1) {
+            /* Omit hashAlg if the the algorithm is SHA-1 (default) */
+            pssParams.hashAlg = NULL;
+        }
+    } else {
+        if (hashAlgTag != SEC_OID_SHA1) {
+            pssParams.hashAlg = PORT_ArenaZAlloc(arena, sizeof(SECAlgorithmID));
+            if (!pssParams.hashAlg) {
+                return NULL;
+            }
+            rv = SECOID_SetAlgorithmID(arena, pssParams.hashAlg, hashAlgTag,
+                                       NULL);
+            if (rv != SECSuccess) {
+                return NULL;
+            }
+        }
+    }
+
+    if (pssParams.maskAlg) {
+        if (hashAlgTag == SEC_OID_SHA1) {
+            /* Omit maskAlg if the the algorithm is SHA-1 (default) */
+            pssParams.maskAlg = NULL;
+        }
+    } else {
+        if (hashAlgTag != SEC_OID_SHA1) {
+            SECItem *hashAlgItem;
+
+            PORT_Assert(pssParams.hashAlg != NULL);
+
+            hashAlgItem = SEC_ASN1EncodeItem(arena, NULL, pssParams.hashAlg,
+                                             SEC_ASN1_GET(SECOID_AlgorithmIDTemplate));
+            if (!hashAlgItem) {
+                return NULL;
+            }
+            pssParams.maskAlg = PORT_ArenaZAlloc(arena, sizeof(SECAlgorithmID));
+            if (!pssParams.maskAlg) {
+                return NULL;
+            }
+            rv = SECOID_SetAlgorithmID(arena, pssParams.maskAlg,
+                                       SEC_OID_PKCS1_MGF1, hashAlgItem);
+            if (rv != SECSuccess) {
+                return NULL;
+            }
+        }
+    }
+
+    if (pssParams.saltLength.data) {
+        if (saltLength == 20) {
+            /* Omit the salt length if it is the default */
+            pssParams.saltLength.data = NULL;
+        }
+    } else {
+        /* Find a suitable length from the hash algorithm and modulus bits */
+        saltLength = PR_MIN(hashLength, modBytes - hashLength - 2);
+
+        if (saltLength != 20 &&
+            !SEC_ASN1EncodeInteger(arena, &pssParams.saltLength, saltLength)) {
+            return NULL;
+        }
+    }
+
+    if (pssParams.trailerField.data) {
+        /* Omit trailerField if the value is 1 (default) */
+        pssParams.trailerField.data = NULL;
+    }
+
+    return SEC_ASN1EncodeItem(arena, result,
+                              &pssParams, SECKEY_RSAPSSParamsTemplate);
+}
+
+SECItem *
+SEC_CreateSignatureAlgorithmParameters(PLArenaPool *arena,
+                                       SECItem *result,
+                                       SECOidTag signAlgTag,
+                                       SECOidTag hashAlgTag,
+                                       const SECItem *params,
+                                       const SECKEYPrivateKey *key)
+{
+    switch (signAlgTag) {
+        case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+            return sec_CreateRSAPSSParameters(arena, result,
+                                              hashAlgTag, params, key);
+
+        default:
+            if (params == NULL)
+                return NULL;
+            if (result == NULL)
+                result = SECITEM_AllocItem(arena, NULL, 0);
+            if (SECITEM_CopyItem(arena, result, params) != SECSuccess)
+                return NULL;
+            return result;
+    }
+}
diff --git a/security/nss/lib/cryptohi/secvfy.c b/security/nss/lib/cryptohi/secvfy.c
new file mode 100644
index 0000000000..8c9dc2d87d
--- /dev/null
+++ b/security/nss/lib/cryptohi/secvfy.c
@@ -0,0 +1,952 @@
+/*
+ * Verification stuff.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+#include "cryptohi.h"
+#include "sechash.h"
+#include "keyhi.h"
+#include "secasn1.h"
+#include "secoid.h"
+#include "pk11func.h"
+#include "pkcs1sig.h"
+#include "secdig.h"
+#include "secerr.h"
+#include "keyi.h"
+#include "nss.h"
+
+/*
+** Recover the DigestInfo from an RSA PKCS#1 signature.
+**
+** If givenDigestAlg != SEC_OID_UNKNOWN, copy givenDigestAlg to digestAlgOut.
+** Otherwise, parse the DigestInfo structure and store the decoded digest
+** algorithm into digestAlgOut.
+**
+** Store the encoded DigestInfo into digestInfo.
+** Store the DigestInfo length into digestInfoLen.
+**
+** This function does *not* verify that the AlgorithmIdentifier in the
+** DigestInfo identifies givenDigestAlg or that the DigestInfo is encoded
+** correctly; verifyPKCS1DigestInfo does that.
+**
+** XXX this is assuming that the signature algorithm has WITH_RSA_ENCRYPTION
+*/
+static SECStatus
+recoverPKCS1DigestInfo(SECOidTag givenDigestAlg,
+                       /*out*/ SECOidTag *digestAlgOut,
+                       /*out*/ unsigned char **digestInfo,
+                       /*out*/ unsigned int *digestInfoLen,
+                       SECKEYPublicKey *key,
+                       const SECItem *sig, void *wincx)
+{
+    SGNDigestInfo *di = NULL;
+    SECItem it;
+    PRBool rv = SECSuccess;
+
+    PORT_Assert(digestAlgOut);
+    PORT_Assert(digestInfo);
+    PORT_Assert(digestInfoLen);
+    PORT_Assert(key);
+    PORT_Assert(key->keyType == rsaKey);
+    PORT_Assert(sig);
+
+    it.data = NULL;
+    it.len = SECKEY_PublicKeyStrength(key);
+    if (it.len != 0) {
+        it.data = (unsigned char *)PORT_Alloc(it.len);
+    }
+    if (it.len == 0 || it.data == NULL) {
+        rv = SECFailure;
+    }
+
+    if (rv == SECSuccess) {
+        /* decrypt the block */
+        rv = PK11_VerifyRecover(key, sig, &it, wincx);
+    }
+
+    if (rv == SECSuccess) {
+        if (givenDigestAlg != SEC_OID_UNKNOWN) {
+            /* We don't need to parse the DigestInfo if the caller gave us the
+             * digest algorithm to use. Later verifyPKCS1DigestInfo will verify
+             * that the DigestInfo identifies the given digest algorithm and
+             * that the DigestInfo is encoded absolutely correctly.
+             */
+            *digestInfoLen = it.len;
+            *digestInfo = (unsigned char *)it.data;
+            *digestAlgOut = givenDigestAlg;
+            return SECSuccess;
+        }
+    }
+
+    if (rv == SECSuccess) {
+        /* The caller didn't specify a digest algorithm to use, so choose the
+         * digest algorithm by parsing the AlgorithmIdentifier within the
+         * DigestInfo.
+         */
+        di = SGN_DecodeDigestInfo(&it);
+        if (!di) {
+            rv = SECFailure;
+        }
+    }
+
+    if (rv == SECSuccess) {
+        *digestAlgOut = SECOID_GetAlgorithmTag(&di->digestAlgorithm);
+        if (*digestAlgOut == SEC_OID_UNKNOWN) {
+            rv = SECFailure;
+        }
+    }
+
+    if (di) {
+        SGN_DestroyDigestInfo(di);
+    }
+
+    if (rv == SECSuccess) {
+        *digestInfoLen = it.len;
+        *digestInfo = (unsigned char *)it.data;
+    } else {
+        if (it.data) {
+            PORT_Free(it.data);
+        }
+        *digestInfo = NULL;
+        *digestInfoLen = 0;
+        PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+    }
+
+    return rv;
+}
+
+struct VFYContextStr {
+    SECOidTag hashAlg; /* the hash algorithm */
+    SECKEYPublicKey *key;
+    /*
+     * This buffer holds either the digest or the full signature
+     * depending on the type of the signature (key->keyType).  It is
+     * defined as a union to make sure it always has enough space.
+     *
+     * Use the "buffer" union member to reference the buffer.
+     * Note: do not take the size of the "buffer" union member.  Take
+     * the size of the union or some other union member instead.
+     */
+    union {
+        unsigned char buffer[1];
+
+        /* the full DSA signature... 40 bytes */
+        unsigned char dsasig[DSA_MAX_SIGNATURE_LEN];
+        /* the full ECDSA signature */
+        unsigned char ecdsasig[2 * MAX_ECKEY_LEN];
+        /* the full RSA signature, only used in RSA-PSS */
+        unsigned char rsasig[(RSA_MAX_MODULUS_BITS + 7) / 8];
+    } u;
+    unsigned int pkcs1RSADigestInfoLen;
+    /* the encoded DigestInfo from a RSA PKCS#1 signature */
+    unsigned char *pkcs1RSADigestInfo;
+    void *wincx;
+    void *hashcx;
+    const SECHashObject *hashobj;
+    SECOidTag encAlg;    /* enc alg */
+    PRBool hasSignature; /* true if the signature was provided in the
+                          * VFY_CreateContext call.  If false, the
+                          * signature must be provided with a
+                          * VFY_EndWithSignature call. */
+    SECItem *params;
+};
+
+static SECStatus
+verifyPKCS1DigestInfo(const VFYContext *cx, const SECItem *digest)
+{
+    SECItem pkcs1DigestInfo;
+    pkcs1DigestInfo.data = cx->pkcs1RSADigestInfo;
+    pkcs1DigestInfo.len = cx->pkcs1RSADigestInfoLen;
+    return _SGN_VerifyPKCS1DigestInfo(
+        cx->hashAlg, digest, &pkcs1DigestInfo,
+        PR_FALSE /*XXX: unsafeAllowMissingParameters*/);
+}
+
+static unsigned int
+checkedSignatureLen(const SECKEYPublicKey *pubk)
+{
+    unsigned int sigLen = SECKEY_SignatureLen(pubk);
+    if (sigLen == 0) {
+        /* Error set by SECKEY_SignatureLen */
+        return sigLen;
+    }
+    unsigned int maxSigLen;
+    switch (pubk->keyType) {
+        case rsaKey:
+        case rsaPssKey:
+            maxSigLen = (RSA_MAX_MODULUS_BITS + 7) / 8;
+            break;
+        case dsaKey:
+            maxSigLen = DSA_MAX_SIGNATURE_LEN;
+            break;
+        case ecKey:
+            maxSigLen = 2 * MAX_ECKEY_LEN;
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_UNSUPPORTED_KEYALG);
+            return 0;
+    }
+    if (sigLen > maxSigLen) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+    return sigLen;
+}
+
+/*
+ * decode the ECDSA or DSA signature from it's DER wrapping.
+ * The unwrapped/raw signature is placed in the buffer pointed
+ * to by dsig and has enough room for len bytes.
+ */
+static SECStatus
+decodeECorDSASignature(SECOidTag algid, const SECItem *sig, unsigned char *dsig,
+                       unsigned int len)
+{
+    SECItem *dsasig = NULL; /* also used for ECDSA */
+
+    /* Safety: Ensure algId is as expected and that signature size is within maxmimums */
+    if (algid == SEC_OID_ANSIX9_DSA_SIGNATURE) {
+        if (len > DSA_MAX_SIGNATURE_LEN) {
+            goto loser;
+        }
+    } else if (algid == SEC_OID_ANSIX962_EC_PUBLIC_KEY) {
+        if (len > MAX_ECKEY_LEN * 2) {
+            goto loser;
+        }
+    } else {
+        goto loser;
+    }
+
+    /* Decode and pad to length */
+    dsasig = DSAU_DecodeDerSigToLen((SECItem *)sig, len);
+    if (dsasig == NULL) {
+        goto loser;
+    }
+    if (dsasig->len != len) {
+        SECITEM_FreeItem(dsasig, PR_TRUE);
+        goto loser;
+    }
+
+    PORT_Memcpy(dsig, dsasig->data, len);
+    SECITEM_FreeItem(dsasig, PR_TRUE);
+
+    return SECSuccess;
+
+loser:
+    PORT_SetError(SEC_ERROR_BAD_DER);
+    return SECFailure;
+}
+
+const SEC_ASN1Template hashParameterTemplate[] = {
+    { SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECItem) },
+    { SEC_ASN1_OBJECT_ID, 0 },
+    { SEC_ASN1_SKIP_REST },
+    { 0 }
+};
+
+/*
+ * Get just the encryption algorithm from the signature algorithm
+ */
+SECOidTag
+sec_GetEncAlgFromSigAlg(SECOidTag sigAlg)
+{
+    /* get the "encryption" algorithm */
+    switch (sigAlg) {
+        case SEC_OID_PKCS1_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
+        case SEC_OID_ISO_SHA_WITH_RSA_SIGNATURE:
+        case SEC_OID_ISO_SHA1_WITH_RSA_SIGNATURE:
+        case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
+        case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
+            return SEC_OID_PKCS1_RSA_ENCRYPTION;
+        case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+            return SEC_OID_PKCS1_RSA_PSS_SIGNATURE;
+
+        /* what about normal DSA? */
+        case SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST:
+        case SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST:
+        case SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST:
+        case SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST:
+            return SEC_OID_ANSIX9_DSA_SIGNATURE;
+        case SEC_OID_MISSI_DSS:
+        case SEC_OID_MISSI_KEA_DSS:
+        case SEC_OID_MISSI_KEA_DSS_OLD:
+        case SEC_OID_MISSI_DSS_OLD:
+            return SEC_OID_MISSI_DSS;
+        case SEC_OID_ANSIX962_ECDSA_SHA1_SIGNATURE:
+        case SEC_OID_ANSIX962_ECDSA_SHA224_SIGNATURE:
+        case SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE:
+        case SEC_OID_ANSIX962_ECDSA_SHA384_SIGNATURE:
+        case SEC_OID_ANSIX962_ECDSA_SHA512_SIGNATURE:
+        case SEC_OID_ANSIX962_ECDSA_SIGNATURE_RECOMMENDED_DIGEST:
+        case SEC_OID_ANSIX962_ECDSA_SIGNATURE_SPECIFIED_DIGEST:
+            return SEC_OID_ANSIX962_EC_PUBLIC_KEY;
+        /* we don't implement MD4 hashes */
+        case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION:
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            break;
+    }
+    return SEC_OID_UNKNOWN;
+}
+
+/*
+ * Pulls the hash algorithm, signing algorithm, and key type out of a
+ * composite algorithm.
+ *
+ * sigAlg: the composite algorithm to dissect.
+ * hashalg: address of a SECOidTag which will be set with the hash algorithm.
+ * encalg: address of a SECOidTag which will be set with the signing alg.
+ *
+ * Returns: SECSuccess if the algorithm was acceptable, SECFailure if the
+ *	algorithm was not found or was not a signing algorithm.
+ */
+SECStatus
+sec_DecodeSigAlg(const SECKEYPublicKey *key, SECOidTag sigAlg,
+                 const SECItem *param, SECOidTag *encalgp, SECOidTag *hashalg)
+{
+    unsigned int len;
+    PLArenaPool *arena;
+    SECStatus rv;
+    SECItem oid;
+    SECOidTag encalg;
+
+    PR_ASSERT(hashalg != NULL);
+    PR_ASSERT(encalgp != NULL);
+
+    switch (sigAlg) {
+        /* We probably shouldn't be generating MD2 signatures either */
+        case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION:
+            *hashalg = SEC_OID_MD2;
+            break;
+        case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
+            *hashalg = SEC_OID_MD5;
+            break;
+        case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
+        case SEC_OID_ISO_SHA_WITH_RSA_SIGNATURE:
+        case SEC_OID_ISO_SHA1_WITH_RSA_SIGNATURE:
+            *hashalg = SEC_OID_SHA1;
+            break;
+        case SEC_OID_PKCS1_RSA_ENCRYPTION:
+            *hashalg = SEC_OID_UNKNOWN; /* get it from the RSA signature */
+            break;
+        case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+            if (param && param->data) {
+                PORTCheapArenaPool tmpArena;
+
+                PORT_InitCheapArena(&tmpArena, DER_DEFAULT_CHUNKSIZE);
+                rv = sec_DecodeRSAPSSParams(&tmpArena.arena, param,
+                                            hashalg, NULL, NULL);
+                PORT_DestroyCheapArena(&tmpArena);
+
+                /* only accept hash algorithms */
+                if (rv != SECSuccess || HASH_GetHashTypeByOidTag(*hashalg) == HASH_AlgNULL) {
+                    /* error set by sec_DecodeRSAPSSParams or HASH_GetHashTypeByOidTag */
+                    return SECFailure;
+                }
+            } else {
+                *hashalg = SEC_OID_SHA1; /* default, SHA-1 */
+            }
+            break;
+
+        case SEC_OID_ANSIX962_ECDSA_SHA224_SIGNATURE:
+        case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
+        case SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST:
+            *hashalg = SEC_OID_SHA224;
+            break;
+        case SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE:
+        case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
+        case SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST:
+            *hashalg = SEC_OID_SHA256;
+            break;
+        case SEC_OID_ANSIX962_ECDSA_SHA384_SIGNATURE:
+        case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
+            *hashalg = SEC_OID_SHA384;
+            break;
+        case SEC_OID_ANSIX962_ECDSA_SHA512_SIGNATURE:
+        case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
+            *hashalg = SEC_OID_SHA512;
+            break;
+
+        /* what about normal DSA? */
+        case SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST:
+        case SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST:
+        case SEC_OID_ANSIX962_ECDSA_SHA1_SIGNATURE:
+            *hashalg = SEC_OID_SHA1;
+            break;
+        case SEC_OID_MISSI_DSS:
+        case SEC_OID_MISSI_KEA_DSS:
+        case SEC_OID_MISSI_KEA_DSS_OLD:
+        case SEC_OID_MISSI_DSS_OLD:
+            *hashalg = SEC_OID_SHA1;
+            break;
+        case SEC_OID_ANSIX962_ECDSA_SIGNATURE_RECOMMENDED_DIGEST:
+            /* This is an EC algorithm. Recommended means the largest
+             * hash algorithm that is not reduced by the keysize of
+             * the EC algorithm. Note that key strength is in bytes and
+             * algorithms are specified in bits. Never use an algorithm
+             * weaker than sha1. */
+            len = SECKEY_PublicKeyStrength(key);
+            if (len < 28) { /* 28 bytes == 224 bits */
+                *hashalg = SEC_OID_SHA1;
+            } else if (len < 32) { /* 32 bytes == 256 bits */
+                *hashalg = SEC_OID_SHA224;
+            } else if (len < 48) { /* 48 bytes == 384 bits */
+                *hashalg = SEC_OID_SHA256;
+            } else if (len < 64) { /* 48 bytes == 512 bits */
+                *hashalg = SEC_OID_SHA384;
+            } else {
+                /* use the largest in this case */
+                *hashalg = SEC_OID_SHA512;
+            }
+            break;
+        case SEC_OID_ANSIX962_ECDSA_SIGNATURE_SPECIFIED_DIGEST:
+            if (param == NULL) {
+                PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+                return SECFailure;
+            }
+            arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
+            if (arena == NULL) {
+                return SECFailure;
+            }
+            rv = SEC_QuickDERDecodeItem(arena, &oid, hashParameterTemplate, param);
+            if (rv == SECSuccess) {
+                *hashalg = SECOID_FindOIDTag(&oid);
+            }
+            PORT_FreeArena(arena, PR_FALSE);
+            if (rv != SECSuccess) {
+                return rv;
+            }
+            /* only accept hash algorithms */
+            if (HASH_GetHashTypeByOidTag(*hashalg) == HASH_AlgNULL) {
+                /* error set by HASH_GetHashTypeByOidTag */
+                return SECFailure;
+            }
+            break;
+        /* we don't implement MD4 hashes */
+        case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION:
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
+            return SECFailure;
+    }
+
+    encalg = sec_GetEncAlgFromSigAlg(sigAlg);
+    if (encalg == SEC_OID_UNKNOWN) {
+        return SECFailure;
+    }
+    *encalgp = encalg;
+
+    return SECSuccess;
+}
+
+/*
+ * we can verify signatures that come from 2 different sources:
+ *  one in with the signature contains a signature oid, and the other
+ *  in which the signature is managed by a Public key (encAlg) oid
+ *  and a hash oid. The latter is the more basic, so that's what
+ *  our base vfyCreate function takes.
+ *
+ * There is one noteworthy corner case, if we are using an RSA key, and the
+ * signature block is provided, then the hashAlg can be specified as
+ * SEC_OID_UNKNOWN. In this case, verify will use the hash oid supplied
+ * in the RSA signature block.
+ */
+static VFYContext *
+vfy_CreateContext(const SECKEYPublicKey *key, const SECItem *sig,
+                  SECOidTag encAlg, SECOidTag hashAlg, SECOidTag *hash, void *wincx)
+{
+    VFYContext *cx;
+    SECStatus rv;
+    unsigned int sigLen;
+    KeyType type;
+    PRUint32 policyFlags;
+    PRInt32 optFlags;
+
+    /* make sure the encryption algorithm matches the key type */
+    /* RSA-PSS algorithm can be used with both rsaKey and rsaPssKey */
+    type = seckey_GetKeyType(encAlg);
+    if ((key->keyType != type) &&
+        ((key->keyType != rsaKey) || (type != rsaPssKey))) {
+        PORT_SetError(SEC_ERROR_PKCS7_KEYALG_MISMATCH);
+        return NULL;
+    }
+    if (NSS_OptionGet(NSS_KEY_SIZE_POLICY_FLAGS, &optFlags) != SECFailure) {
+        if (optFlags & NSS_KEY_SIZE_POLICY_VERIFY_FLAG) {
+            rv = seckey_EnforceKeySize(key->keyType,
+                                       SECKEY_PublicKeyStrengthInBits(key),
+                                       SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+            if (rv != SECSuccess) {
+                return NULL;
+            }
+        }
+    }
+    /* check the policy on the encryption algorithm */
+    if ((NSS_GetAlgorithmPolicy(encAlg, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        return NULL;
+    }
+
+    cx = (VFYContext *)PORT_ZAlloc(sizeof(VFYContext));
+    if (cx == NULL) {
+        goto loser;
+    }
+
+    cx->wincx = wincx;
+    cx->hasSignature = (sig != NULL);
+    cx->encAlg = encAlg;
+    cx->hashAlg = hashAlg;
+    cx->key = SECKEY_CopyPublicKey(key);
+    cx->pkcs1RSADigestInfo = NULL;
+    rv = SECSuccess;
+    if (sig) {
+        rv = SECFailure;
+        if (type == rsaKey) {
+            rv = recoverPKCS1DigestInfo(hashAlg, &cx->hashAlg,
+                                        &cx->pkcs1RSADigestInfo,
+                                        &cx->pkcs1RSADigestInfoLen,
+                                        cx->key,
+                                        sig, wincx);
+        } else {
+            sigLen = checkedSignatureLen(key);
+            /* Check signature length is within limits */
+            if (sigLen == 0) {
+                /* error set by checkedSignatureLen */
+                rv = SECFailure;
+                goto loser;
+            }
+            if (sigLen > sizeof(cx->u)) {
+                PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                rv = SECFailure;
+                goto loser;
+            }
+            switch (type) {
+                case rsaPssKey:
+                    if (sig->len != sigLen) {
+                        PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                        rv = SECFailure;
+                        goto loser;
+                    }
+                    PORT_Memcpy(cx->u.buffer, sig->data, sigLen);
+                    rv = SECSuccess;
+                    break;
+                case ecKey:
+                case dsaKey:
+                    /* decodeECorDSASignature will check sigLen == sig->len after padding */
+                    rv = decodeECorDSASignature(encAlg, sig, cx->u.buffer, sigLen);
+                    break;
+                default:
+                    /* Unreachable */
+                    rv = SECFailure;
+                    goto loser;
+            }
+        }
+        if (rv != SECSuccess) {
+            goto loser;
+        }
+    }
+
+    /* check hash alg again, RSA may have changed it.*/
+    if (HASH_GetHashTypeByOidTag(cx->hashAlg) == HASH_AlgNULL) {
+        /* error set by HASH_GetHashTypeByOidTag */
+        goto loser;
+    }
+    /* check the policy on the hash algorithm. Do this after
+     * the rsa decode because some uses of this function get hash implicitly
+     * from the RSA signature itself. */
+    if ((NSS_GetAlgorithmPolicy(cx->hashAlg, &policyFlags) == SECFailure) ||
+        !(policyFlags & NSS_USE_ALG_IN_ANY_SIGNATURE)) {
+        PORT_SetError(SEC_ERROR_SIGNATURE_ALGORITHM_DISABLED);
+        goto loser;
+    }
+
+    if (hash) {
+        *hash = cx->hashAlg;
+    }
+    return cx;
+
+loser:
+    if (cx) {
+        VFY_DestroyContext(cx, PR_TRUE);
+    }
+    return 0;
+}
+
+VFYContext *
+VFY_CreateContext(SECKEYPublicKey *key, SECItem *sig, SECOidTag sigAlg,
+                  void *wincx)
+{
+    SECOidTag encAlg, hashAlg;
+    SECStatus rv = sec_DecodeSigAlg(key, sigAlg, NULL, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return NULL;
+    }
+    return vfy_CreateContext(key, sig, encAlg, hashAlg, NULL, wincx);
+}
+
+VFYContext *
+VFY_CreateContextDirect(const SECKEYPublicKey *key, const SECItem *sig,
+                        SECOidTag encAlg, SECOidTag hashAlg,
+                        SECOidTag *hash, void *wincx)
+{
+    return vfy_CreateContext(key, sig, encAlg, hashAlg, hash, wincx);
+}
+
+VFYContext *
+VFY_CreateContextWithAlgorithmID(const SECKEYPublicKey *key, const SECItem *sig,
+                                 const SECAlgorithmID *sigAlgorithm, SECOidTag *hash, void *wincx)
+{
+    VFYContext *cx;
+    SECOidTag encAlg, hashAlg;
+    SECStatus rv = sec_DecodeSigAlg(key,
+                                    SECOID_GetAlgorithmTag((SECAlgorithmID *)sigAlgorithm),
+                                    &sigAlgorithm->parameters, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return NULL;
+    }
+
+    cx = vfy_CreateContext(key, sig, encAlg, hashAlg, hash, wincx);
+    if (sigAlgorithm->parameters.data) {
+        cx->params = SECITEM_DupItem(&sigAlgorithm->parameters);
+    }
+
+    return cx;
+}
+
+void
+VFY_DestroyContext(VFYContext *cx, PRBool freeit)
+{
+    if (cx) {
+        if (cx->hashcx != NULL) {
+            (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE);
+            cx->hashcx = NULL;
+        }
+        if (cx->key) {
+            SECKEY_DestroyPublicKey(cx->key);
+        }
+        if (cx->pkcs1RSADigestInfo) {
+            PORT_Free(cx->pkcs1RSADigestInfo);
+        }
+        if (cx->params) {
+            SECITEM_FreeItem(cx->params, PR_TRUE);
+        }
+        if (freeit) {
+            PORT_ZFree(cx, sizeof(VFYContext));
+        }
+    }
+}
+
+SECStatus
+VFY_Begin(VFYContext *cx)
+{
+    if (cx->hashcx != NULL) {
+        (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE);
+        cx->hashcx = NULL;
+    }
+
+    cx->hashobj = HASH_GetHashObjectByOidTag(cx->hashAlg);
+    if (!cx->hashobj)
+        return SECFailure; /* error code is set */
+
+    cx->hashcx = (*cx->hashobj->create)();
+    if (cx->hashcx == NULL)
+        return SECFailure;
+
+    (*cx->hashobj->begin)(cx->hashcx);
+    return SECSuccess;
+}
+
+SECStatus
+VFY_Update(VFYContext *cx, const unsigned char *input, unsigned inputLen)
+{
+    if (cx->hashcx == NULL) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+    (*cx->hashobj->update)(cx->hashcx, input, inputLen);
+    return SECSuccess;
+}
+
+SECStatus
+VFY_EndWithSignature(VFYContext *cx, SECItem *sig)
+{
+    unsigned char final[HASH_LENGTH_MAX];
+    unsigned part;
+    SECItem hash, rsasig, dsasig; /* dsasig is also used for ECDSA */
+    SECStatus rv;
+
+    if ((cx->hasSignature == PR_FALSE) && (sig == NULL)) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+
+    if (cx->hashcx == NULL) {
+        PORT_SetError(SEC_ERROR_INVALID_ARGS);
+        return SECFailure;
+    }
+    (*cx->hashobj->end)(cx->hashcx, final, &part, sizeof(final));
+    switch (cx->key->keyType) {
+        case ecKey:
+        case dsaKey:
+            dsasig.len = checkedSignatureLen(cx->key);
+            if (dsasig.len == 0) {
+                return SECFailure;
+            }
+            if (dsasig.len > sizeof(cx->u)) {
+                PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                return SECFailure;
+            }
+            dsasig.data = cx->u.buffer;
+
+            if (sig) {
+                rv = decodeECorDSASignature(cx->encAlg, sig, dsasig.data,
+                                            dsasig.len);
+                if (rv != SECSuccess) {
+                    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                    return SECFailure;
+                }
+            }
+            hash.data = final;
+            hash.len = part;
+            if (PK11_Verify(cx->key, &dsasig, &hash, cx->wincx) != SECSuccess) {
+                PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                return SECFailure;
+            }
+            break;
+        case rsaKey:
+            if (cx->encAlg == SEC_OID_PKCS1_RSA_PSS_SIGNATURE) {
+                CK_RSA_PKCS_PSS_PARAMS mech;
+                SECItem mechItem = { siBuffer, (unsigned char *)&mech, sizeof(mech) };
+                PORTCheapArenaPool tmpArena;
+
+                PORT_InitCheapArena(&tmpArena, DER_DEFAULT_CHUNKSIZE);
+                rv = sec_DecodeRSAPSSParamsToMechanism(&tmpArena.arena,
+                                                       cx->params,
+                                                       &mech);
+                PORT_DestroyCheapArena(&tmpArena);
+                if (rv != SECSuccess) {
+                    return SECFailure;
+                }
+
+                rsasig.data = cx->u.buffer;
+                rsasig.len = checkedSignatureLen(cx->key);
+                if (rsasig.len == 0) {
+                    /* Error set by checkedSignatureLen */
+                    return SECFailure;
+                }
+                if (rsasig.len > sizeof(cx->u)) {
+                    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                    return SECFailure;
+                }
+                if (sig) {
+                    if (sig->len != rsasig.len) {
+                        PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                        return SECFailure;
+                    }
+                    PORT_Memcpy(rsasig.data, sig->data, rsasig.len);
+                }
+                hash.data = final;
+                hash.len = part;
+                if (PK11_VerifyWithMechanism(cx->key, CKM_RSA_PKCS_PSS, &mechItem,
+                                             &rsasig, &hash, cx->wincx) != SECSuccess) {
+                    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                    return SECFailure;
+                }
+            } else {
+                SECItem digest;
+                digest.data = final;
+                digest.len = part;
+                if (sig) {
+                    SECOidTag hashid;
+                    PORT_Assert(cx->hashAlg != SEC_OID_UNKNOWN);
+                    rv = recoverPKCS1DigestInfo(cx->hashAlg, &hashid,
+                                                &cx->pkcs1RSADigestInfo,
+                                                &cx->pkcs1RSADigestInfoLen,
+                                                cx->key,
+                                                sig, cx->wincx);
+                    if (rv != SECSuccess) {
+                        return SECFailure;
+                    }
+                    PORT_Assert(cx->hashAlg == hashid);
+                }
+                return verifyPKCS1DigestInfo(cx, &digest);
+            }
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+            return SECFailure; /* shouldn't happen */
+    }
+    return SECSuccess;
+}
+
+SECStatus
+VFY_End(VFYContext *cx)
+{
+    return VFY_EndWithSignature(cx, NULL);
+}
+
+/************************************************************************/
+/*
+ * Verify that a previously-computed digest matches a signature.
+ */
+static SECStatus
+vfy_VerifyDigest(const SECItem *digest, const SECKEYPublicKey *key,
+                 const SECItem *sig, SECOidTag encAlg, SECOidTag hashAlg,
+                 void *wincx)
+{
+    SECStatus rv;
+    VFYContext *cx;
+    SECItem dsasig; /* also used for ECDSA */
+    rv = SECFailure;
+
+    cx = vfy_CreateContext(key, sig, encAlg, hashAlg, NULL, wincx);
+    if (cx != NULL) {
+        switch (key->keyType) {
+            case rsaKey:
+                rv = verifyPKCS1DigestInfo(cx, digest);
+                /* Error (if any) set by verifyPKCS1DigestInfo */
+                break;
+            case ecKey:
+            case dsaKey:
+                dsasig.data = cx->u.buffer;
+                dsasig.len = checkedSignatureLen(cx->key);
+                if (dsasig.len == 0) {
+                    /* Error set by checkedSignatureLen */
+                    rv = SECFailure;
+                    break;
+                }
+                if (dsasig.len > sizeof(cx->u)) {
+                    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                    rv = SECFailure;
+                    break;
+                }
+                rv = PK11_Verify(cx->key, &dsasig, (SECItem *)digest, cx->wincx);
+                if (rv != SECSuccess) {
+                    PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+                }
+                break;
+            default:
+                break;
+        }
+        VFY_DestroyContext(cx, PR_TRUE);
+    }
+    return rv;
+}
+
+SECStatus
+VFY_VerifyDigestDirect(const SECItem *digest, const SECKEYPublicKey *key,
+                       const SECItem *sig, SECOidTag encAlg,
+                       SECOidTag hashAlg, void *wincx)
+{
+    return vfy_VerifyDigest(digest, key, sig, encAlg, hashAlg, wincx);
+}
+
+SECStatus
+VFY_VerifyDigest(SECItem *digest, SECKEYPublicKey *key, SECItem *sig,
+                 SECOidTag algid, void *wincx)
+{
+    SECOidTag encAlg, hashAlg;
+    SECStatus rv = sec_DecodeSigAlg(key, algid, NULL, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return SECFailure;
+    }
+    return vfy_VerifyDigest(digest, key, sig, encAlg, hashAlg, wincx);
+}
+
+/*
+ * this function takes an optional hash oid, which the digest function
+ * will be compared with our target hash value.
+ */
+SECStatus
+VFY_VerifyDigestWithAlgorithmID(const SECItem *digest,
+                                const SECKEYPublicKey *key, const SECItem *sig,
+                                const SECAlgorithmID *sigAlgorithm,
+                                SECOidTag hashCmp, void *wincx)
+{
+    SECOidTag encAlg, hashAlg;
+    SECStatus rv = sec_DecodeSigAlg(key,
+                                    SECOID_GetAlgorithmTag((SECAlgorithmID *)sigAlgorithm),
+                                    &sigAlgorithm->parameters, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return rv;
+    }
+    if (hashCmp != SEC_OID_UNKNOWN &&
+        hashAlg != SEC_OID_UNKNOWN &&
+        hashCmp != hashAlg) {
+        PORT_SetError(SEC_ERROR_BAD_SIGNATURE);
+        return SECFailure;
+    }
+    return vfy_VerifyDigest(digest, key, sig, encAlg, hashAlg, wincx);
+}
+
+static SECStatus
+vfy_VerifyData(const unsigned char *buf, int len, const SECKEYPublicKey *key,
+               const SECItem *sig, SECOidTag encAlg, SECOidTag hashAlg,
+               const SECItem *params, SECOidTag *hash, void *wincx)
+{
+    SECStatus rv;
+    VFYContext *cx;
+
+    cx = vfy_CreateContext(key, sig, encAlg, hashAlg, hash, wincx);
+    if (cx == NULL)
+        return SECFailure;
+    if (params) {
+        cx->params = SECITEM_DupItem(params);
+    }
+
+    rv = VFY_Begin(cx);
+    if (rv == SECSuccess) {
+        rv = VFY_Update(cx, (unsigned char *)buf, len);
+        if (rv == SECSuccess)
+            rv = VFY_End(cx);
+    }
+
+    VFY_DestroyContext(cx, PR_TRUE);
+    return rv;
+}
+
+SECStatus
+VFY_VerifyDataDirect(const unsigned char *buf, int len,
+                     const SECKEYPublicKey *key, const SECItem *sig,
+                     SECOidTag encAlg, SECOidTag hashAlg,
+                     SECOidTag *hash, void *wincx)
+{
+    return vfy_VerifyData(buf, len, key, sig, encAlg, hashAlg, NULL, hash, wincx);
+}
+
+SECStatus
+VFY_VerifyData(const unsigned char *buf, int len, const SECKEYPublicKey *key,
+               const SECItem *sig, SECOidTag algid, void *wincx)
+{
+    SECOidTag encAlg, hashAlg;
+    SECStatus rv = sec_DecodeSigAlg(key, algid, NULL, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return rv;
+    }
+    return vfy_VerifyData(buf, len, key, sig, encAlg, hashAlg, NULL, NULL, wincx);
+}
+
+SECStatus
+VFY_VerifyDataWithAlgorithmID(const unsigned char *buf, int len,
+                              const SECKEYPublicKey *key,
+                              const SECItem *sig,
+                              const SECAlgorithmID *sigAlgorithm,
+                              SECOidTag *hash, void *wincx)
+{
+    SECOidTag encAlg, hashAlg;
+    SECOidTag sigAlg = SECOID_GetAlgorithmTag((SECAlgorithmID *)sigAlgorithm);
+    SECStatus rv = sec_DecodeSigAlg(key, sigAlg,
+                                    &sigAlgorithm->parameters, &encAlg, &hashAlg);
+    if (rv != SECSuccess) {
+        return rv;
+    }
+    return vfy_VerifyData(buf, len, key, sig, encAlg, hashAlg,
+                          &sigAlgorithm->parameters, hash, wincx);
+}