diff options
Diffstat (limited to 'security/nss/lib/cryptohi/sechash.c')
| -rw-r--r-- | security/nss/lib/cryptohi/sechash.c | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/security/nss/lib/cryptohi/sechash.c b/security/nss/lib/cryptohi/sechash.c new file mode 100644 index 0000000000..474fdfff9e --- /dev/null +++ b/security/nss/lib/cryptohi/sechash.c @@ -0,0 +1,471 @@ +/* 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); +} + +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 }, +}; + +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; + 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; + 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; + 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; + 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); +} |