mirror of
https://github.com/classilla/tenfourfox.git
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410 lines
10 KiB
C
410 lines
10 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "sechash.h"
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#include "secoidt.h"
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#include "secerr.h"
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#include "blapi.h"
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#include "pk11func.h" /* for the PK11_ calls below. */
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static void *
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null_hash_new_context(void)
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{
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return NULL;
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}
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static void *
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null_hash_clone_context(void *v)
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{
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PORT_Assert(v == NULL);
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return NULL;
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}
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static void
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null_hash_begin(void *v)
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{
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}
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static void
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null_hash_update(void *v, const unsigned char *input, unsigned int length)
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{
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}
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static void
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null_hash_end(void *v, unsigned char *output, unsigned int *outLen,
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unsigned int maxOut)
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{
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*outLen = 0;
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}
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static void
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null_hash_destroy_context(void *v, PRBool b)
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{
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PORT_Assert(v == NULL);
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}
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static void *
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md2_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_MD2);
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}
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static void *
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md5_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_MD5);
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}
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static void *
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sha1_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_SHA1);
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}
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static void *
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sha224_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_SHA224);
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}
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static void *
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sha256_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_SHA256);
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}
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static void *
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sha384_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_SHA384);
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}
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static void *
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sha512_NewContext(void) {
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return (void *) PK11_CreateDigestContext(SEC_OID_SHA512);
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}
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const SECHashObject SECHashObjects[] = {
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{ 0,
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(void * (*)(void)) null_hash_new_context,
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(void * (*)(void *)) null_hash_clone_context,
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(void (*)(void *, PRBool)) null_hash_destroy_context,
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(void (*)(void *)) null_hash_begin,
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(void (*)(void *, const unsigned char *, unsigned int)) null_hash_update,
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(void (*)(void *, unsigned char *, unsigned int *,
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unsigned int)) null_hash_end,
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0,
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HASH_AlgNULL
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},
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{ MD2_LENGTH,
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(void * (*)(void)) md2_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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MD2_BLOCK_LENGTH,
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HASH_AlgMD2
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},
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{ MD5_LENGTH,
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(void * (*)(void)) md5_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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MD5_BLOCK_LENGTH,
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HASH_AlgMD5
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},
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{ SHA1_LENGTH,
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(void * (*)(void)) sha1_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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SHA1_BLOCK_LENGTH,
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HASH_AlgSHA1
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},
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{ SHA256_LENGTH,
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(void * (*)(void)) sha256_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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SHA256_BLOCK_LENGTH,
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HASH_AlgSHA256
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},
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{ SHA384_LENGTH,
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(void * (*)(void)) sha384_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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SHA384_BLOCK_LENGTH,
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HASH_AlgSHA384
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},
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{ SHA512_LENGTH,
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(void * (*)(void)) sha512_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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SHA512_BLOCK_LENGTH,
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HASH_AlgSHA512
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},
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{ SHA224_LENGTH,
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(void * (*)(void)) sha224_NewContext,
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(void * (*)(void *)) PK11_CloneContext,
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(void (*)(void *, PRBool)) PK11_DestroyContext,
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(void (*)(void *)) PK11_DigestBegin,
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(void (*)(void *, const unsigned char *, unsigned int)) PK11_DigestOp,
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(void (*)(void *, unsigned char *, unsigned int *, unsigned int))
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PK11_DigestFinal,
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SHA224_BLOCK_LENGTH,
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HASH_AlgSHA224
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},
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};
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const SECHashObject *
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HASH_GetHashObject(HASH_HashType type)
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{
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return &SECHashObjects[type];
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}
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HASH_HashType
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HASH_GetHashTypeByOidTag(SECOidTag hashOid)
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{
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HASH_HashType ht = HASH_AlgNULL;
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switch(hashOid) {
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case SEC_OID_MD2: ht = HASH_AlgMD2; break;
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case SEC_OID_MD5: ht = HASH_AlgMD5; break;
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case SEC_OID_SHA1: ht = HASH_AlgSHA1; break;
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case SEC_OID_SHA224: ht = HASH_AlgSHA224; break;
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case SEC_OID_SHA256: ht = HASH_AlgSHA256; break;
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case SEC_OID_SHA384: ht = HASH_AlgSHA384; break;
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case SEC_OID_SHA512: ht = HASH_AlgSHA512; break;
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default: ht = HASH_AlgNULL;
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PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
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break;
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}
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return ht;
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}
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SECOidTag
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HASH_GetHashOidTagByHMACOidTag(SECOidTag hmacOid)
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{
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SECOidTag hashOid = SEC_OID_UNKNOWN;
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switch(hmacOid) {
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/* no oid exists for HMAC_MD2 */
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/* NSS does not define a oid for HMAC_MD4 */
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case SEC_OID_HMAC_SHA1: hashOid = SEC_OID_SHA1; break;
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case SEC_OID_HMAC_SHA224: hashOid = SEC_OID_SHA224; break;
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case SEC_OID_HMAC_SHA256: hashOid = SEC_OID_SHA256; break;
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case SEC_OID_HMAC_SHA384: hashOid = SEC_OID_SHA384; break;
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case SEC_OID_HMAC_SHA512: hashOid = SEC_OID_SHA512; break;
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default: hashOid = SEC_OID_UNKNOWN;
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PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
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break;
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}
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return hashOid;
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}
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SECOidTag
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HASH_GetHMACOidTagByHashOidTag(SECOidTag hashOid)
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{
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SECOidTag hmacOid = SEC_OID_UNKNOWN;
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switch(hashOid) {
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/* no oid exists for HMAC_MD2 */
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/* NSS does not define a oid for HMAC_MD4 */
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case SEC_OID_SHA1: hmacOid = SEC_OID_HMAC_SHA1; break;
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case SEC_OID_SHA224: hmacOid = SEC_OID_HMAC_SHA224; break;
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case SEC_OID_SHA256: hmacOid = SEC_OID_HMAC_SHA256; break;
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case SEC_OID_SHA384: hmacOid = SEC_OID_HMAC_SHA384; break;
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case SEC_OID_SHA512: hmacOid = SEC_OID_HMAC_SHA512; break;
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default: hmacOid = SEC_OID_UNKNOWN;
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PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
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break;
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}
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return hmacOid;
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}
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const SECHashObject *
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HASH_GetHashObjectByOidTag(SECOidTag hashOid)
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{
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HASH_HashType ht = HASH_GetHashTypeByOidTag(hashOid);
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return (ht == HASH_AlgNULL) ? NULL : &SECHashObjects[ht];
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}
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/* returns zero for unknown hash OID */
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unsigned int
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HASH_ResultLenByOidTag(SECOidTag hashOid)
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{
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const SECHashObject * hashObject = HASH_GetHashObjectByOidTag(hashOid);
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unsigned int resultLen = 0;
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if (hashObject)
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resultLen = hashObject->length;
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return resultLen;
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}
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/* returns zero if hash type invalid. */
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unsigned int
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HASH_ResultLen(HASH_HashType type)
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{
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if ( ( type < HASH_AlgNULL ) || ( type >= HASH_AlgTOTAL ) ) {
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PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
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return(0);
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}
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return(SECHashObjects[type].length);
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}
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unsigned int
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HASH_ResultLenContext(HASHContext *context)
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{
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return(context->hashobj->length);
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}
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SECStatus
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HASH_HashBuf(HASH_HashType type,
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unsigned char *dest,
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const unsigned char *src,
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PRUint32 src_len)
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{
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HASHContext *cx;
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unsigned int part;
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if ( ( type < HASH_AlgNULL ) || ( type >= HASH_AlgTOTAL ) ) {
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return(SECFailure);
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}
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cx = HASH_Create(type);
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if ( cx == NULL ) {
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return(SECFailure);
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}
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HASH_Begin(cx);
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HASH_Update(cx, src, src_len);
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HASH_End(cx, dest, &part, HASH_ResultLenContext(cx));
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HASH_Destroy(cx);
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return(SECSuccess);
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}
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HASHContext *
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HASH_Create(HASH_HashType type)
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{
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void *hash_context = NULL;
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HASHContext *ret = NULL;
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if ( ( type < HASH_AlgNULL ) || ( type >= HASH_AlgTOTAL ) ) {
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return(NULL);
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}
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hash_context = (* SECHashObjects[type].create)();
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if ( hash_context == NULL ) {
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goto loser;
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}
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ret = (HASHContext *)PORT_Alloc(sizeof(HASHContext));
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if ( ret == NULL ) {
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goto loser;
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}
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ret->hash_context = hash_context;
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ret->hashobj = &SECHashObjects[type];
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return(ret);
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loser:
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if ( hash_context != NULL ) {
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(* SECHashObjects[type].destroy)(hash_context, PR_TRUE);
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}
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return(NULL);
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}
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HASHContext *
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HASH_Clone(HASHContext *context)
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{
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void *hash_context = NULL;
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HASHContext *ret = NULL;
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hash_context = (* context->hashobj->clone)(context->hash_context);
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if ( hash_context == NULL ) {
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goto loser;
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}
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ret = (HASHContext *)PORT_Alloc(sizeof(HASHContext));
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if ( ret == NULL ) {
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goto loser;
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}
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ret->hash_context = hash_context;
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ret->hashobj = context->hashobj;
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return(ret);
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loser:
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if ( hash_context != NULL ) {
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(* context->hashobj->destroy)(hash_context, PR_TRUE);
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}
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return(NULL);
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}
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void
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HASH_Destroy(HASHContext *context)
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{
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(* context->hashobj->destroy)(context->hash_context, PR_TRUE);
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PORT_Free(context);
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return;
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}
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void
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HASH_Begin(HASHContext *context)
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{
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(* context->hashobj->begin)(context->hash_context);
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return;
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}
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void
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HASH_Update(HASHContext *context,
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const unsigned char *src,
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unsigned int len)
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{
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(* context->hashobj->update)(context->hash_context, src, len);
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return;
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}
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void
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HASH_End(HASHContext *context,
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unsigned char *result,
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unsigned int *result_len,
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unsigned int max_result_len)
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{
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(* context->hashobj->end)(context->hash_context, result, result_len,
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max_result_len);
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return;
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}
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HASH_HashType
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HASH_GetType(HASHContext *context)
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{
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return(context->hashobj->type);
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}
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