new makefile and modified build process

[avr-crypto-lib.git] / shabal / shabal256.c

diff --git a/shabal/shabal256.c b/shabal/shabal256.c
new file mode 100644 (file)
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+++ b/shabal/shabal256.c
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+/* shabal256.c */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2009  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/>.
+*/
+/*
+ * \file    shabal256.c
+ * \author  Daniel Otte
+ * \email   daniel.otte@rub.de
+ * \date    2009-04-27
+ * \license GPLv3 or later
+ * 
+ */
+
+#include <stdint.h>
+#include "shabal.h"
+#include <avr/pgmspace.h>
+#include <string.h>
+
+uint32_t shabal256_iv[] PROGMEM = {
+       /* A */ 
+       0x52F84552, 0xE54B7999, 0x2D8EE3EC, 0xB9645191, 
+       0xE0078B86, 0xBB7C44C9, 0xD2B5C1CA, 0xB0D2EB8C,
+       0x14CE5A45, 0x22AF50DC, 0xEFFDBC6B, 0xEB21B74A,
+       /* B */ 
+       0xB555C6EE, 0x3E710596, 0xA72A652F, 0x9301515F, 
+       0xDA28C1FA, 0x696FD868, 0x9CB6BF72, 0x0AFE4002,
+    0xA6E03615, 0x5138C1D4, 0xBE216306, 0xB38B8890, 
+       0x3EA8B96B, 0x3299ACE4, 0x30924DD4, 0x55CB34A5,
+       /* C */ 
+       0xB405F031, 0xC4233EBA, 0xB3733979, 0xC0DD9D55,
+       0xC51C28AE, 0xA327B8E1, 0x56C56167, 0xED614433,
+       0x88B59D60, 0x60E2CEBA, 0x758B4B8B, 0x83E82A7F, 
+       0xBC968828, 0xE6E00BF7, 0xBA839E55, 0x9B491C60
+};
+
+void shabal256_init(shabal_ctx_t* ctx){
+       uint8_t i;
+       ctx->b = ctx->b_buffer;
+       ctx->c = ctx->c_buffer;
+       ctx->w.w64 = 1LL;
+       for(i=0;i<SHABAL_R;++i){
+               ctx->a[i] = pgm_read_dword(&(shabal256_iv[i]));
+       }
+       for(i=0;i<16;++i){
+               ctx->b[i] = pgm_read_dword(&(shabal256_iv[SHABAL_R+i]));
+       }
+       for(i=0;i<16;++i){
+               ctx->c[i] = pgm_read_dword(&(shabal256_iv[SHABAL_R+16+i]));
+       }
+}
+
+void shabal256_ctx2hash(void* dest, const shabal_ctx_t* ctx){
+       shabal_ctx2hash(dest, ctx, 256);
+}
+
+void shabal256(void* dest, void* msg, uint32_t length_b){
+       shabal_ctx_t ctx;
+       shabal256_init(&ctx);
+       while(length_b>=SHABAL_BLOCKSIZE){
+               shabal_nextBlock(&ctx, msg);
+               msg = (uint8_t*)msg+SHABAL_BLOCKSIZE_B;
+               length_b -= SHABAL_BLOCKSIZE;
+       }
+       shabal_lastBlock(&ctx, msg, length_b);
+       shabal256_ctx2hash(dest, &ctx);
+}