Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

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

1 files changed, 153 insertions, 0 deletions

diff --git a/third_party/heimdal/lib/hcrypto/pkcs5.c b/third_party/heimdal/lib/hcrypto/pkcs5.c
new file mode 100644
index 0000000..88e71c4
--- /dev/null
+++ b/third_party/heimdal/lib/hcrypto/pkcs5.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2006 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+#include <roken.h>
+
+#ifdef KRB5
+#include <krb5-types.h>
+#endif
+
+#include <evp.h>
+#include <hmac.h>
+
+/**
+ * As descriped in PKCS5, convert a password, salt, and iteration counter into a crypto key.
+ *
+ * @param password Password.
+ * @param password_len Length of password.
+ * @param salt Salt
+ * @param salt_len Length of salt.
+ * @param iter iteration counter.
+ * @param md the digest function.
+ * @param keylen the output key length.
+ * @param key the output key.
+ *
+ * @return 1 on success, non 1 on failure.
+ *
+ * @ingroup hcrypto_misc
+ */
+
+int
+PKCS5_PBKDF2_HMAC(const void * password, size_t password_len,
+		  const void * salt, size_t salt_len,
+		  unsigned long iter,
+		  const EVP_MD *md,
+		  size_t keylen, void *key)
+{
+    size_t datalen, leftofkey, checksumsize;
+    char *data, *tmpcksum;
+    uint32_t keypart;
+    unsigned long i;
+    int j;
+    char *p;
+    unsigned int hmacsize;
+
+    if (md == NULL)
+	return 0;
+
+    checksumsize = EVP_MD_size(md);
+    datalen = salt_len + 4;
+
+    tmpcksum = malloc(checksumsize + datalen);
+    if (tmpcksum == NULL)
+	return 0;
+
+    data = &tmpcksum[checksumsize];
+
+    if (salt_len)
+        memcpy(data, salt, salt_len);
+
+    keypart = 1;
+    leftofkey = keylen;
+    p = key;
+
+    while (leftofkey) {
+	int len;
+
+	if (leftofkey > checksumsize)
+	    len = checksumsize;
+	else
+	    len = leftofkey;
+
+	data[datalen - 4] = (keypart >> 24) & 0xff;
+	data[datalen - 3] = (keypart >> 16) & 0xff;
+	data[datalen - 2] = (keypart >> 8)  & 0xff;
+	data[datalen - 1] = (keypart)       & 0xff;
+
+	HMAC(md, password, password_len, data, datalen,
+	     tmpcksum, &hmacsize);
+
+	memcpy(p, tmpcksum, len);
+	for (i = 1; i < iter; i++) {
+	    HMAC(md, password, password_len, tmpcksum, checksumsize,
+		 tmpcksum, &hmacsize);
+
+	    for (j = 0; j < len; j++)
+		p[j] ^= tmpcksum[j];
+	}
+
+	p += len;
+	leftofkey -= len;
+	keypart++;
+    }
+
+    free(tmpcksum);
+
+    return 1;
+}
+
+/**
+ * As descriped in PKCS5, convert a password, salt, and iteration counter into a crypto key.
+ *
+ * @param password Password.
+ * @param password_len Length of password.
+ * @param salt Salt
+ * @param salt_len Length of salt.
+ * @param iter iteration counter.
+ * @param keylen the output key length.
+ * @param key the output key.
+ *
+ * @return 1 on success, non 1 on failure.
+ *
+ * @ingroup hcrypto_misc
+ */
+int
+PKCS5_PBKDF2_HMAC_SHA1(const void * password, size_t password_len,
+		       const void * salt, size_t salt_len,
+		       unsigned long iter,
+		       size_t keylen, void *key)
+{
+    return PKCS5_PBKDF2_HMAC(password, password_len, salt, salt_len, iter,
+			     EVP_sha1(), keylen, key);
+}