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comparison libtomcrypt/src/mac/xcbc/xcbc_process.c @ 1511:5916af64acd4 fuzz

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merge from main
author Matt Johnston <matt@ucc.asn.au>
date Sat, 17 Feb 2018 19:29:51 +0800
parents 6dba84798cd5
children
comparison
equal deleted inserted replaced
1457:32f990cc96b1 1511:5916af64acd4
3 * LibTomCrypt is a library that provides various cryptographic 3 * LibTomCrypt is a library that provides various cryptographic
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 *
9 * Tom St Denis, [email protected], http://libtom.org
10 */ 8 */
11 #include "tomcrypt.h" 9 #include "tomcrypt.h"
12 10
13 /** 11 /**
14 @file xcbc_process.c 12 @file xcbc_process.c
45 43
46 #ifdef LTC_FAST 44 #ifdef LTC_FAST
47 if (xcbc->buflen == 0) { 45 if (xcbc->buflen == 0) {
48 while (inlen > (unsigned long)xcbc->blocksize) { 46 while (inlen > (unsigned long)xcbc->blocksize) {
49 for (x = 0; x < xcbc->blocksize; x += sizeof(LTC_FAST_TYPE)) { 47 for (x = 0; x < xcbc->blocksize; x += sizeof(LTC_FAST_TYPE)) {
50 *((LTC_FAST_TYPE*)&(xcbc->IV[x])) ^= *((LTC_FAST_TYPE*)&(in[x])); 48 *(LTC_FAST_TYPE_PTR_CAST(&(xcbc->IV[x]))) ^= *(LTC_FAST_TYPE_PTR_CAST(&(in[x])));
51 } 49 }
52 cipher_descriptor[xcbc->cipher].ecb_encrypt(xcbc->IV, xcbc->IV, &xcbc->key); 50 cipher_descriptor[xcbc->cipher].ecb_encrypt(xcbc->IV, xcbc->IV, &xcbc->key);
53 in += xcbc->blocksize; 51 in += xcbc->blocksize;
54 inlen -= xcbc->blocksize; 52 inlen -= xcbc->blocksize;
55 } 53 }
56 } 54 }
57 #endif 55 #endif
58 56
59 while (inlen) { 57 while (inlen) {
60 if (xcbc->buflen == xcbc->blocksize) { 58 if (xcbc->buflen == xcbc->blocksize) {
61 cipher_descriptor[xcbc->cipher].ecb_encrypt(xcbc->IV, xcbc->IV, &xcbc->key); 59 cipher_descriptor[xcbc->cipher].ecb_encrypt(xcbc->IV, xcbc->IV, &xcbc->key);
62 xcbc->buflen = 0; 60 xcbc->buflen = 0;
63 } 61 }
64 xcbc->IV[xcbc->buflen++] ^= *in++; 62 xcbc->IV[xcbc->buflen++] ^= *in++;
65 --inlen; 63 --inlen;
66 } 64 }
67 return CRYPT_OK; 65 return CRYPT_OK;
68 } 66 }
69 67
70 #endif 68 #endif
71 69
72 /* $Source$ */ 70 /* ref: $Format:%D$ */
73 /* $Revision$ */ 71 /* git commit: $Format:%H$ */
74 /* $Date$ */ 72 /* commit time: $Format:%ai$ */
75 73