updated build system

[arm-crypto-lib.git] / hfal / hfal-basic.c

diff --git a/hfal/hfal-basic.c b/hfal/hfal-basic.c
new file mode 100644 (file)
index 0000000..dbb1e7d
--- /dev/null
+++ b/hfal/hfal-basic.c
@@ -0,0 +1,80 @@
+/* hfal-basic.c */
+/*
+    This file is part of the ARM-Crypto-Lib.
+    Copyright (C) 2006-2010  Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "hashfunction_descriptor.h"
+#include "hfal-basic.h"
+#include <stdlib.h>
+
+uint8_t hfal_hash_init(const hfdesc_t* hash_descriptor, hfgen_ctx_t* ctx){
+       ctx->desc_ptr = (hfdesc_t*)hash_descriptor;
+       if(!(ctx->ctx=malloc(hash_descriptor->ctxsize_B)))
+               return 3;
+       hash_descriptor->init(ctx->ctx);
+       return 0;
+}
+
+void hfal_hash_nextBlock(hfgen_ctx_t* ctx, const void* block){
+       ctx->desc_ptr->nextBlock(ctx->ctx, block);
+}
+
+void hfal_hash_lastBlock(hfgen_ctx_t* ctx, const void* block, uint16_t length_b){
+       ctx->desc_ptr->lastBlock(ctx->ctx, block, length_b);
+}
+
+void hfal_hash_ctx2hash(void* dest, hfgen_ctx_t* ctx){
+       ctx->desc_ptr->ctx2hash(dest, ctx->ctx);
+}
+
+void hfal_hash_free(hfgen_ctx_t* ctx){
+       hf_free_fpt f;
+       f = ctx->desc_ptr->free;
+       if(f)
+               f(ctx->ctx);
+       free(ctx->ctx);
+}
+
+void hfal_hash_mem(const hfdesc_t* hash_descriptor, void* dest, const void* msg, uint32_t length_b){
+       void_fpt f;
+       f = (void_fpt)(hash_descriptor->mem);
+       if(f){
+               ((hf_mem_fpt)f)(dest, msg, length_b);
+       }else{
+               uint16_t bs,bsb;
+               uint8_t ctx[hash_descriptor->ctxsize_B];
+               hash_descriptor->init(ctx);
+               bs = hash_descriptor->blocksize_b;
+               bsb=bs/8;
+               f=(void_fpt)(hash_descriptor->nextBlock);
+               while(length_b>bs){
+                       ((hf_nextBlock_fpt)f)(ctx, msg);
+                       length_b -= bs;
+                       msg = (uint8_t*)msg + bsb;
+               }
+               hash_descriptor->lastBlock(ctx, msg, length_b);
+               hash_descriptor->ctx2hash(dest, ctx);
+       }
+}
+
+uint16_t hfal_hash_getBlocksize(const hfdesc_t* hash_descriptor){
+       return hash_descriptor->blocksize_b;
+}
+
+uint16_t hfal_hash_getHashsize(const hfdesc_t* hash_descriptor){
+       return hash_descriptor->hashsize_b;
+}