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adding hashing of final hex file to make-system
[avr-crypto-lib.git] / shabal / shabal512.c
1 /* shabal512.c */
2 /*
3     This file is part of the AVR-Crypto-Lib.
4     Copyright (C) 2009  Daniel Otte (daniel.otte@rub.de)
5
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.
10
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.
15
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/>.
18 */
19 /*
20  * \file    shabal512.c
21  * \author  Daniel Otte
22  * \email   daniel.otte@rub.de
23  * \date    2009-04-27
24  * \license GPLv3 or later
25  * 
26  */
27
28 #include <stdint.h>
29 #include "shabal.h"
30 #include <avr/pgmspace.h>
31 #include <string.h>
32
33 const uint32_t shabal512_iv[] PROGMEM = {
34         /* A */ 
35         0x20728DFD, 0x46C0BD53, 0xE782B699, 0x55304632, 
36         0x71B4EF90, 0x0EA9E82C, 0xDBB930F1, 0xFAD06B8B,
37         0xBE0CAE40, 0x8BD14410, 0x76D2ADAC, 0x28ACAB7F,
38         /* B */ 
39         0xC1099CB7, 0x07B385F3, 0xE7442C26, 0xCC8AD640, 
40         0xEB6F56C7, 0x1EA81AA9, 0x73B9D314, 0x1DE85D08,
41         0x48910A5A, 0x893B22DB, 0xC5A0DF44, 0xBBC4324E, 
42         0x72D2F240, 0x75941D99, 0x6D8BDE82, 0xA1A7502B,
43         /* C */
44         0xD9BF68D1, 0x58BAD750, 0x56028CB2, 0x8134F359, 
45         0xB5D469D8, 0x941A8CC2, 0x418B2A6E, 0x04052780,
46         0x7F07D787, 0x5194358F, 0x3C60D665, 0xBE97D79A, 
47         0x950C3434, 0xAED9A06D, 0x2537DC8D, 0x7CDB5969,
48 };
49
50 void shabal512_init(shabal_ctx_t* ctx){
51         uint8_t i;
52         ctx->b = ctx->b_buffer;
53         ctx->c = ctx->c_buffer;
54         ctx->w.w64 = 1LL;
55         for(i=0;i<SHABAL_R;++i){
56                 ctx->a[i] = pgm_read_dword(&(shabal512_iv[i]));
57         }
58         for(i=0;i<16;++i){
59                 ctx->b[i] = pgm_read_dword(&(shabal512_iv[SHABAL_R+i]));
60         }
61         for(i=0;i<16;++i){
62                 ctx->c[i] = pgm_read_dword(&(shabal512_iv[SHABAL_R+16+i]));
63         }
64 }
65
66 void shabal512_ctx2hash(void* dest, const shabal_ctx_t* ctx){
67         shabal_ctx2hash(dest, ctx, 512);
68 }
69
70 void shabal512(void* dest, void* msg, uint32_t length_b){
71         shabal_ctx_t ctx;
72         shabal512_init(&ctx);
73         while(length_b>=SHABAL_BLOCKSIZE){
74                 shabal_nextBlock(&ctx, msg);
75                 msg = (uint8_t*)msg+SHABAL_BLOCKSIZE_B;
76                 length_b -= SHABAL_BLOCKSIZE;
77         }
78         shabal_lastBlock(&ctx, msg, length_b);
79         shabal512_ctx2hash(dest, &ctx);
80 }