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comparison eax_encrypt_authenticate_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
21 const unsigned char *pt, unsigned long ptlen, 21 const unsigned char *pt, unsigned long ptlen,
22 unsigned char *ct, 22 unsigned char *ct,
23 unsigned char *tag, unsigned long *taglen) 23 unsigned char *tag, unsigned long *taglen)
24 { 24 {
25 int err; 25 int err;
26 eax_state eax; 26 eax_state *eax;
27 27
28 if ((err = eax_init(&eax, cipher, key, keylen, nonce, noncelen, header, headerlen)) != CRYPT_OK) { 28 eax = XMALLOC(sizeof(eax_state));
29 return err; 29
30 if ((err = eax_init(eax, cipher, key, keylen, nonce, noncelen, header, headerlen)) != CRYPT_OK) {
31 goto __ERR;
30 } 32 }
31 33
32 if ((err = eax_encrypt(&eax, pt, ct, ptlen)) != CRYPT_OK) { 34 if ((err = eax_encrypt(eax, pt, ct, ptlen)) != CRYPT_OK) {
33 return err; 35 goto __ERR;
34 } 36 }
35 37
36 if ((err = eax_done(&eax, tag, taglen)) != CRYPT_OK) { 38 if ((err = eax_done(eax, tag, taglen)) != CRYPT_OK) {
37 return err; 39 goto __ERR;
38 } 40 }
39 41
40 return CRYPT_OK; 42 err = CRYPT_OK;
43 __ERR:
44 #ifdef CLEAN_STACK
45 zeromem(eax, sizeof(eax_state));
46 #endif
47
48 XFREE(eax);
49
50 return err;
41 } 51 }
42 52
43 #endif 53 #endif