]> git.cryptolib.org Git - avr-crypto-lib.git/blob - hfal/hfal-nessie.c
fixing some decryption bugs in GCM128
[avr-crypto-lib.git] / hfal / hfal-nessie.c
1 /* hfal-nessie.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    hfal-nessie.c
21  * \author  Daniel Otte
22  * \email   daniel.otte@rub.de
23  * \date    2009-05-10
24  * \license GPLv3 or later
25  * 
26  */
27
28 #include "nessie_hash_test.h"
29 #include "hashfunction_descriptor.h"
30 #include <stdint.h>
31 #include <avr/pgmspace.h>
32
33 void hfal_nessie(const hfdesc_t *hd){
34         if(pgm_read_byte(&(hd->type))!=HFDESC_TYPE_HASHFUNCTION)
35                 return;
36         char name[1+strlen_P((void*)pgm_read_word(&(hd->name)))];
37         strcpy_P(name, (void*)pgm_read_word(&(hd->name)));
38         
39         nessie_hash_ctx.hashsize_b  = pgm_read_word(&(hd->hashsize_b));
40         nessie_hash_ctx.name = name;
41         nessie_hash_ctx.blocksize_B = pgm_read_word(&(hd->blocksize_b))/8;
42         nessie_hash_ctx.ctx_size_B  = pgm_read_word(&(hd->ctxsize_B));
43         nessie_hash_ctx.hash_init = (nessie_hash_init_fpt)pgm_read_word(&(hd->init));
44         nessie_hash_ctx.hash_next = (nessie_hash_next_fpt)pgm_read_word(&(hd->nextBlock));
45         nessie_hash_ctx.hash_last = (nessie_hash_last_fpt)pgm_read_word(&(hd->lastBlock));
46         nessie_hash_ctx.hash_conv = (nessie_hash_conv_fpt)pgm_read_word(&(hd->ctx2hash));
47         
48         nessie_hash_run();
49 }
50
51 void hfal_nessie_multiple(const hfdesc_t *const *hd_list){
52         const hfdesc_t *hd;
53         for(;;){
54                 hd = (void*)pgm_read_word(hd_list);
55                 if(!hd)
56                         return;
57                 hfal_nessie(hd);
58                 hd_list = (void*)((uint8_t*)hd_list + 2);
59         }
60 }
61