3 This file is part of the ARM-Crypto-Lib.
4 Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "hashfunction_descriptor.h"
21 #include "hfal-basic.h"
24 uint8_t hfal_hash_init(const hfdesc_t* hash_descriptor, hfgen_ctx_t* ctx){
25 ctx->desc_ptr = (hfdesc_t*)hash_descriptor;
26 if(!(ctx->ctx=malloc(hash_descriptor->ctxsize_B)))
28 hash_descriptor->init(ctx->ctx);
32 void hfal_hash_nextBlock(hfgen_ctx_t* ctx, const void* block){
33 ctx->desc_ptr->nextBlock(ctx->ctx, block);
36 void hfal_hash_lastBlock(hfgen_ctx_t* ctx, const void* block, uint16_t length_b){
37 ctx->desc_ptr->lastBlock(ctx->ctx, block, length_b);
40 void hfal_hash_ctx2hash(void* dest, hfgen_ctx_t* ctx){
41 ctx->desc_ptr->ctx2hash(dest, ctx->ctx);
44 void hfal_hash_free(hfgen_ctx_t* ctx){
46 f = ctx->desc_ptr->free;
52 void hfal_hash_mem(const hfdesc_t* hash_descriptor, void* dest, const void* msg, uint32_t length_b){
54 f = (void_fpt)(hash_descriptor->mem);
56 ((hf_mem_fpt)f)(dest, msg, length_b);
59 uint8_t ctx[hash_descriptor->ctxsize_B];
60 hash_descriptor->init(ctx);
61 bs = hash_descriptor->blocksize_b;
63 f=(void_fpt)(hash_descriptor->nextBlock);
65 ((hf_nextBlock_fpt)f)(ctx, msg);
67 msg = (uint8_t*)msg + bsb;
69 hash_descriptor->lastBlock(ctx, msg, length_b);
70 hash_descriptor->ctx2hash(dest, ctx);
74 uint16_t hfal_hash_getCtxsize_B(const hfdesc_t* hash_descriptor){
75 return hash_descriptor->ctxsize_B;
78 uint16_t hfal_hash_getBlocksize(const hfdesc_t* hash_descriptor){
79 return hash_descriptor->blocksize_b;
82 uint16_t hfal_hash_getHashsize(const hfdesc_t* hash_descriptor){
83 return hash_descriptor->hashsize_b;