Mercurial > dropbear

comparison libtomcrypt/src/mac/f9/f9_process.c @ 1471:6dba84798cd5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Update to libtomcrypt 1.18.1, merged with Dropbear changes
author Matt Johnston <matt@ucc.asn.au>
date Fri, 09 Feb 2018 21:44:05 +0800
parents f849a5ca2efc
children
comparison
equal deleted inserted replaced
1470:8bba51a55704 1471:6dba84798cd5
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 f9_process.c 12 @file f9_process.c
42 40
43 #ifdef LTC_FAST 41 #ifdef LTC_FAST
44 if (f9->buflen == 0) { 42 if (f9->buflen == 0) {
45 while (inlen >= (unsigned long)f9->blocksize) { 43 while (inlen >= (unsigned long)f9->blocksize) {
46 for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) { 44 for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) {
47 *((LTC_FAST_TYPE*)&(f9->IV[x])) ^= *((LTC_FAST_TYPE*)&(in[x])); 45 *(LTC_FAST_TYPE_PTR_CAST(&(f9->IV[x]))) ^= *(LTC_FAST_TYPE_PTR_CAST(&(in[x])));
48 } 46 }
49 cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key); 47 cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key);
50 for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) { 48 for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) {
51 *((LTC_FAST_TYPE*)&(f9->ACC[x])) ^= *((LTC_FAST_TYPE*)&(f9->IV[x])); 49 *(LTC_FAST_TYPE_PTR_CAST(&(f9->ACC[x]))) ^= *(LTC_FAST_TYPE_PTR_CAST(&(f9->IV[x])));
52 } 50 }
53 in += f9->blocksize; 51 in += f9->blocksize;
54 inlen -= f9->blocksize; 52 inlen -= f9->blocksize;
55 } 53 }
56 } 54 }
57 #endif 55 #endif
58 56
59 while (inlen) { 57 while (inlen) {
60 if (f9->buflen == f9->blocksize) { 58 if (f9->buflen == f9->blocksize) {
61 cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key); 59 cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key);
62 for (x = 0; x < f9->blocksize; x++) { 60 for (x = 0; x < f9->blocksize; x++) {
63 f9->ACC[x] ^= f9->IV[x]; 61 f9->ACC[x] ^= f9->IV[x];
64 } 62 }
65 f9->buflen = 0; 63 f9->buflen = 0;
66 } 64 }
67 f9->IV[f9->buflen++] ^= *in++; 65 f9->IV[f9->buflen++] ^= *in++;
68 --inlen; 66 --inlen;
69 } 67 }
70 return CRYPT_OK; 68 return CRYPT_OK;
71 } 69 }
72 70
73 #endif 71 #endif
74 72
75 /* $Source$ */ 73 /* ref: $Format:%D$ */
76 /* $Revision$ */ 74 /* git commit: $Format:%H$ */
77 /* $Date$ */ 75 /* commit time: $Format:%ai$ */
78 76