1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis 2 * 3 * LibTomCrypt is a library that provides various cryptographic 4 * algorithms in a highly modular and flexible manner. 5 * 6 * The library is free for all purposes without any express 7 * guarantee it works. 8 * 9 * Tom St Denis, tomstdenis (at) gmail.com, http://libtomcrypt.com 10 */ 11 12 /** 13 @file ocb_done_encrypt.c 14 OCB implementation, terminate encryption, by Tom St Denis 15 */ 16 #include "tomcrypt.h" 17 18 #ifdef OCB_MODE 19 20 /** 21 Terminate an encryption OCB state 22 @param ocb The OCB state 23 @param pt Remaining plaintext (if any) 24 @param ptlen The length of the plaintext (octets) 25 @param ct [out] The ciphertext (if any) 26 @param tag [out] The tag for the OCB stream 27 @param taglen [in/out] The max size and resulting size of the tag 28 @return CRYPT_OK if successful 29 */ 30 int ocb_done_encrypt(ocb_state *ocb, const unsigned char *pt, unsigned long ptlen, 31 unsigned char *ct, unsigned char *tag, unsigned long *taglen) 32 { 33 LTC_ARGCHK(ocb != NULL); 34 LTC_ARGCHK(pt != NULL); 35 LTC_ARGCHK(ct != NULL); 36 LTC_ARGCHK(tag != NULL); 37 LTC_ARGCHK(taglen != NULL); 38 return s_ocb_done(ocb, pt, ptlen, ct, tag, taglen, 0); 39 } 40 41 #endif 42 43 44 /* $Source: /cvs/libtom/libtomcrypt/src/encauth/ocb/ocb_done_encrypt.c,v $ */ 45 /* $Revision: 1.4 $ */ 46 /* $Date: 2006/03/31 14:15:35 $ */ 47
