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comparison hash_memory.c @ 143:5d99163f7e32 libtomcrypt-orig

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import of libtomcrypt 0.99
author Matt Johnston <matt@ucc.asn.au>
date Sun, 19 Dec 2004 11:34:45 +0000
parents 7faae8f46238
children
comparison
equal deleted inserted replaced
15:6362d3854bb4 143:5d99163f7e32
10 */ 10 */
11 #include "mycrypt.h" 11 #include "mycrypt.h"
12 12
13 int hash_memory(int hash, const unsigned char *data, unsigned long len, unsigned char *dst, unsigned long *outlen) 13 int hash_memory(int hash, const unsigned char *data, unsigned long len, unsigned char *dst, unsigned long *outlen)
14 { 14 {
15 hash_state md; 15 hash_state *md;
16 int err; 16 int err;
17 17
18 _ARGCHK(data != NULL); 18 _ARGCHK(data != NULL);
19 _ARGCHK(dst != NULL); 19 _ARGCHK(dst != NULL);
20 _ARGCHK(outlen != NULL); 20 _ARGCHK(outlen != NULL);
24 } 24 }
25 25
26 if (*outlen < hash_descriptor[hash].hashsize) { 26 if (*outlen < hash_descriptor[hash].hashsize) {
27 return CRYPT_BUFFER_OVERFLOW; 27 return CRYPT_BUFFER_OVERFLOW;
28 } 28 }
29
30 md = XMALLOC(sizeof(hash_state));
31 if (md == NULL) {
32 return CRYPT_MEM;
33 }
34
35 if ((err = hash_descriptor[hash].init(md)) != CRYPT_OK) {
36 goto __ERR;
37 }
38 if ((err = hash_descriptor[hash].process(md, data, len)) != CRYPT_OK) {
39 goto __ERR;
40 }
41 err = hash_descriptor[hash].done(md, dst);
29 *outlen = hash_descriptor[hash].hashsize; 42 *outlen = hash_descriptor[hash].hashsize;
43 __ERR:
44 #ifdef CLEAN_STACK
45 zeromem(md, sizeof(hash_state));
46 #endif
47 XFREE(md);
30 48
31 hash_descriptor[hash].init(&md); 49 return err;
32 hash_descriptor[hash].process(&md, data, len);
33 hash_descriptor[hash].done(&md, dst);
34 return CRYPT_OK;
35 } 50 }