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comparison pmac_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
18 const unsigned char *key, unsigned long keylen, 18 const unsigned char *key, unsigned long keylen,
19 const unsigned char *msg, unsigned long msglen, 19 const unsigned char *msg, unsigned long msglen,
20 unsigned char *out, unsigned long *outlen) 20 unsigned char *out, unsigned long *outlen)
21 { 21 {
22 int err; 22 int err;
23 pmac_state pmac; 23 pmac_state *pmac;
24 24
25 _ARGCHK(key != NULL); 25 _ARGCHK(key != NULL);
26 _ARGCHK(msg != NULL); 26 _ARGCHK(msg != NULL);
27 _ARGCHK(out != NULL); 27 _ARGCHK(out != NULL);
28 _ARGCHK(outlen != NULL); 28 _ARGCHK(outlen != NULL);
29 29
30 30 /* allocate ram for pmac state */
31 if ((err = pmac_init(&pmac, cipher, key, keylen)) != CRYPT_OK) { 31 pmac = XMALLOC(sizeof(pmac_state));
32 return err; 32 if (pmac == NULL) {
33 return CRYPT_MEM;
33 } 34 }
34 if ((err = pmac_process(&pmac, msg, msglen)) != CRYPT_OK) { 35
35 return err; 36 if ((err = pmac_init(pmac, cipher, key, keylen)) != CRYPT_OK) {
37 goto __ERR;
36 } 38 }
37 if ((err = pmac_done(&pmac, out, outlen)) != CRYPT_OK) { 39 if ((err = pmac_process(pmac, msg, msglen)) != CRYPT_OK) {
38 return err; 40 goto __ERR;
41 }
42 if ((err = pmac_done(pmac, out, outlen)) != CRYPT_OK) {
43 goto __ERR;
39 } 44 }
40 45
41 return CRYPT_OK; 46 err = CRYPT_OK;
47 __ERR:
48 #ifdef CLEAN_STACK
49 zeromem(pmac, sizeof(pmac_state));
50 #endif
51
52 XFREE(pmac);
53 return err;
42 } 54 }
43 55
44 #endif 56 #endif