--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/cryptohi/sechash.c	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,409 @@
+/* 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:             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_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);
+}