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comparison libtomcrypt/src/encauth/eax/eax_decrypt.c @ 1511:5916af64acd4 fuzz

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merge from main
author Matt Johnston <matt@ucc.asn.au>
date Sat, 17 Feb 2018 19:29:51 +0800
parents 6dba84798cd5
children
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1457:32f990cc96b1 1511:5916af64acd4
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 9
12 /** 10 /**
13 @file eax_decrypt.c 11 @file eax_decrypt.c
14 EAX implementation, decrypt block, by Tom St Denis 12 EAX implementation, decrypt block, by Tom St Denis
15 */ 13 */
16 #include "tomcrypt.h" 14 #include "tomcrypt.h"
17 15
18 #ifdef LTC_EAX_MODE 16 #ifdef LTC_EAX_MODE
19 17
20 /** 18 /**
21 Decrypt data with the EAX protocol 19 Decrypt data with the EAX protocol
22 @param eax The EAX state 20 @param eax The EAX state
23 @param ct The ciphertext 21 @param ct The ciphertext
24 @param pt [out] The plaintext 22 @param pt [out] The plaintext
25 @param length The length (octets) of the ciphertext 23 @param length The length (octets) of the ciphertext
26 @return CRYPT_OK if successful 24 @return CRYPT_OK if successful
27 */ 25 */
28 int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt, 26 int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt,
29 unsigned long length) 27 unsigned long length)
30 { 28 {
31 int err; 29 int err;
32 30
33 LTC_ARGCHK(eax != NULL); 31 LTC_ARGCHK(eax != NULL);
34 LTC_ARGCHK(pt != NULL); 32 LTC_ARGCHK(pt != NULL);
35 LTC_ARGCHK(ct != NULL); 33 LTC_ARGCHK(ct != NULL);
36 34
37 /* omac ciphertext */ 35 /* omac ciphertext */
43 return ctr_decrypt(ct, pt, length, &eax->ctr); 41 return ctr_decrypt(ct, pt, length, &eax->ctr);
44 } 42 }
45 43
46 #endif 44 #endif
47 45
48 /* $Source$ */ 46 /* ref: $Format:%D$ */
49 /* $Revision$ */ 47 /* git commit: $Format:%H$ */
50 /* $Date$ */ 48 /* commit time: $Format:%ai$ */