diff options
Diffstat (limited to 'mozilla/security/nss/lib/cryptohi/sechash.c')
| -rw-r--r-- | mozilla/security/nss/lib/cryptohi/sechash.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/mozilla/security/nss/lib/cryptohi/sechash.c b/mozilla/security/nss/lib/cryptohi/sechash.c new file mode 100644 index 0000000..af6ea82 --- /dev/null +++ b/mozilla/security/nss/lib/cryptohi/sechash.c @@ -0,0 +1,422 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ +#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 * +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 + }, +}; + +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_SHA256: ht = HASH_AlgSHA256; break; + case SEC_OID_SHA384: ht = HASH_AlgSHA384; break; + case SEC_OID_SHA512: ht = HASH_AlgSHA512; break; + default: ht = HASH_AlgNULL; + PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); + break; + } + return ht; +} + +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_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_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, + 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); +} |