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comparison libtomcrypt/src/mac/pmac/pmac_memory_multi.c @ 1471:6dba84798cd5

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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
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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 #include <stdarg.h> 10 #include <stdarg.h>
13 11
14 /** 12 /**
15 @file pmac_memory_multi.c 13 @file pmac_memory_multi.c
16 PMAC implementation, process multiple blocks of memory, by Tom St Denis 14 PMAC implementation, process multiple blocks of memory, by Tom St Denis
17 */ 15 */
18 16
19 #ifdef LTC_PMAC 17 #ifdef LTC_PMAC
20 18
21 /** 19 /**
28 @param in The data you wish to send through PMAC 26 @param in The data you wish to send through PMAC
29 @param inlen The length of data you wish to send through PMAC (octets) 27 @param inlen The length of data you wish to send through PMAC (octets)
30 @param ... tuples of (data,len) pairs to PMAC, terminated with a (NULL,x) (x=don't care) 28 @param ... tuples of (data,len) pairs to PMAC, terminated with a (NULL,x) (x=don't care)
31 @return CRYPT_OK if successful 29 @return CRYPT_OK if successful
32 */ 30 */
33 int pmac_memory_multi(int cipher, 31 int pmac_memory_multi(int cipher,
34 const unsigned char *key, unsigned long keylen, 32 const unsigned char *key, unsigned long keylen,
35 unsigned char *out, unsigned long *outlen, 33 unsigned char *out, unsigned long *outlen,
36 const unsigned char *in, unsigned long inlen, ...) 34 const unsigned char *in, unsigned long inlen, ...)
37 { 35 {
38 int err; 36 int err;
49 /* allocate ram for pmac state */ 47 /* allocate ram for pmac state */
50 pmac = XMALLOC(sizeof(pmac_state)); 48 pmac = XMALLOC(sizeof(pmac_state));
51 if (pmac == NULL) { 49 if (pmac == NULL) {
52 return CRYPT_MEM; 50 return CRYPT_MEM;
53 } 51 }
54 52
55 if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) { 53 if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) {
56 goto LBL_ERR; 54 goto LBL_ERR;
57 } 55 }
58 va_start(args, inlen); 56 va_start(args, inlen);
59 curptr = in; 57 curptr = in;
60 curlen = inlen; 58 curlen = inlen;
61 for (;;) { 59 for (;;) {
62 /* process buf */ 60 /* process buf */
63 if ((err = pmac_process(pmac, curptr, curlen)) != CRYPT_OK) { 61 if ((err = pmac_process(pmac, curptr, curlen)) != CRYPT_OK) {
64 goto LBL_ERR; 62 goto LBL_ERR;
77 #ifdef LTC_CLEAN_STACK 75 #ifdef LTC_CLEAN_STACK
78 zeromem(pmac, sizeof(pmac_state)); 76 zeromem(pmac, sizeof(pmac_state));
79 #endif 77 #endif
80 XFREE(pmac); 78 XFREE(pmac);
81 va_end(args); 79 va_end(args);
82 return err; 80 return err;
83 } 81 }
84 82
85 #endif 83 #endif
86 84
87 /* $Source$ */ 85 /* ref: $Format:%D$ */
88 /* $Revision$ */ 86 /* git commit: $Format:%H$ */
89 /* $Date$ */ 87 /* commit time: $Format:%ai$ */