Mercurial > dropbear
view libtomcrypt/src/modes/cfb/cfb_setiv.c @ 436:7282370416a0
Improve known_hosts checking.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 22 Feb 2007 15:29:32 +0000 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
line wrap: on
line source
/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtomcrypt.com */ #include "tomcrypt.h" /** @file cfb_setiv.c CFB implementation, set IV, Tom St Denis */ #ifdef LTC_CFB_MODE /** Set an initial vector @param IV The initial vector @param len The length of the vector (in octets) @param cfb The CFB state @return CRYPT_OK if successful */ int cfb_setiv(const unsigned char *IV, unsigned long len, symmetric_CFB *cfb) { int err; LTC_ARGCHK(IV != NULL); LTC_ARGCHK(cfb != NULL); if ((err = cipher_is_valid(cfb->cipher)) != CRYPT_OK) { return err; } if (len != (unsigned long)cfb->blocklen) { return CRYPT_INVALID_ARG; } /* force next block */ cfb->padlen = 0; return cipher_descriptor[cfb->cipher].ecb_encrypt(IV, cfb->IV, &cfb->key); } #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cfb/cfb_setiv.c,v $ */ /* $Revision: 1.6 $ */ /* $Date: 2006/06/29 01:51:34 $ */