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comparison libtomcrypt/src/mac/omac/omac_done.c @ 435:337c45621e81

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merge of 'a9b0496634cdd25647b65e585cc3240f3fa699ee' and 'c22be8b8f570b48e9662dac32c7b3e7148a42206'
author Matt Johnston <matt@ucc.asn.au>
date Thu, 22 Feb 2007 14:53:49 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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434:0aaaf68e97dc 435:337c45621e81
4 * algorithms in a highly modular and flexible manner. 4 * algorithms in a highly modular and flexible manner.
5 * 5 *
6 * The library is free for all purposes without any express 6 * The library is free for all purposes without any express
7 * guarantee it works. 7 * guarantee it works.
8 * 8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org 9 * Tom St Denis, [email protected], http://libtomcrypt.com
10 */ 10 */
11 #include "tomcrypt.h" 11 #include "tomcrypt.h"
12 12
13 /** 13 /**
14 @file omac_done.c 14 @file omac_done.c
15 OMAC1 support, terminate a stream, Tom St Denis 15 OMAC1 support, terminate a stream, Tom St Denis
16 */ 16 */
17 17
18 #ifdef OMAC 18 #ifdef LTC_OMAC
19 19
20 /** 20 /**
21 Terminate an OMAC stream 21 Terminate an OMAC stream
22 @param omac The OMAC state 22 @param omac The OMAC state
23 @param out [out] Destination for the authentication tag 23 @param out [out] Destination for the authentication tag
59 for (x = 0; x < (unsigned)omac->blklen; x++) { 59 for (x = 0; x < (unsigned)omac->blklen; x++) {
60 omac->block[x] ^= omac->prev[x] ^ omac->Lu[mode][x]; 60 omac->block[x] ^= omac->prev[x] ^ omac->Lu[mode][x];
61 } 61 }
62 62
63 /* encrypt it */ 63 /* encrypt it */
64 cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->block, omac->block, &omac->key); 64 if ((err = cipher_descriptor[omac->cipher_idx].ecb_encrypt(omac->block, omac->block, &omac->key)) != CRYPT_OK) {
65 return err;
66 }
65 cipher_descriptor[omac->cipher_idx].done(&omac->key); 67 cipher_descriptor[omac->cipher_idx].done(&omac->key);
66 68
67 /* output it */ 69 /* output it */
68 for (x = 0; x < (unsigned)omac->blklen && x < *outlen; x++) { 70 for (x = 0; x < (unsigned)omac->blklen && x < *outlen; x++) {
69 out[x] = omac->block[x]; 71 out[x] = omac->block[x];
78 80
79 #endif 81 #endif
80 82
81 83
82 /* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_done.c,v $ */ 84 /* $Source: /cvs/libtom/libtomcrypt/src/mac/omac/omac_done.c,v $ */
83 /* $Revision: 1.4 $ */ 85 /* $Revision: 1.7 $ */
84 /* $Date: 2005/05/05 14:35:58 $ */ 86 /* $Date: 2006/11/03 00:39:49 $ */