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 #include "tomcrypt.h" 12 13 /** 14 @file ctr_done.c 15 CTR implementation, finish chain, Tom St Denis 16 */ 17 18 #ifdef LTC_CTR_MODE 19 20 /** Terminate the chain 21 @param ctr The CTR chain to terminate 22 @return CRYPT_OK on success 23 */ 24 int ctr_done(symmetric_CTR *ctr) 25 { 26 int err; 27 LTC_ARGCHK(ctr != NULL); 28 29 if ((err = cipher_is_valid(ctr->cipher)) != CRYPT_OK) { 30 return err; 31 } 32 cipher_descriptor[ctr->cipher].done(&ctr->key); 33 return CRYPT_OK; 34 } 35 36 37 38 #endif 39 40 /* $Source: /cvs/libtom/libtomcrypt/src/modes/ctr/ctr_done.c,v $ */ 41 /* $Revision: 1.6 $ */ 42 /* $Date: 2006/06/29 01:46:46 $ */ 43
