Mercurial > dropbear

comparison src/encauth/ocb/ocb_encrypt.c @ 381:999a5eb4ed10 libtomcrypt-dropbear

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propagate from branch 'au.asn.ucc.matt.ltc.orig' (head 52840647ac7f5c707c3bd158d119a15734a7ef28) to branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 02:39:21 +0000
parents d5faf4814ddb
children
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281:997e6f7dc01e 381:999a5eb4ed10
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 11
12 /** 12 /**
13 @file ocb_encrypt.c 13 @file ocb_encrypt.c
14 OCB implementation, encrypt data, by Tom St Denis 14 OCB implementation, encrypt data, by Tom St Denis
49 49
50 /* xor pt in, encrypt, xor Z out */ 50 /* xor pt in, encrypt, xor Z out */
51 for (x = 0; x < ocb->block_len; x++) { 51 for (x = 0; x < ocb->block_len; x++) {
52 tmp[x] = pt[x] ^ Z[x]; 52 tmp[x] = pt[x] ^ Z[x];
53 } 53 }
54 cipher_descriptor[ocb->cipher].ecb_encrypt(tmp, ct, &ocb->key); 54 if ((err = cipher_descriptor[ocb->cipher].ecb_encrypt(tmp, ct, &ocb->key)) != CRYPT_OK) {
55 return err;
56 }
55 for (x = 0; x < ocb->block_len; x++) { 57 for (x = 0; x < ocb->block_len; x++) {
56 ct[x] ^= Z[x]; 58 ct[x] ^= Z[x];
57 } 59 }
58 60
59 #ifdef LTC_CLEAN_STACK 61 #ifdef LTC_CLEAN_STACK
64 } 66 }
65 67
66 #endif 68 #endif
67 69
68 /* $Source: /cvs/libtom/libtomcrypt/src/encauth/ocb/ocb_encrypt.c,v $ */ 70 /* $Source: /cvs/libtom/libtomcrypt/src/encauth/ocb/ocb_encrypt.c,v $ */
69 /* $Revision: 1.3 $ */ 71 /* $Revision: 1.5 $ */
70 /* $Date: 2005/05/05 14:35:58 $ */ 72 /* $Date: 2006/03/31 14:15:35 $ */