Mercurial > dropbear
view libtomcrypt/src/modes/cfb/cfb_setiv.c @ 297:79bf1023cf11 agent-client
propagate from branch 'au.asn.ucc.matt.dropbear' (head 0501e6f661b5415eb76f3b312d183c3adfbfb712)
to branch 'au.asn.ucc.matt.dropbear.cli-agent' (head 01038174ec27245b51bd43a66c01ad930880f67b)
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 21 Mar 2006 16:20:59 +0000 |
parents | 1b9e69c058d2 |
children | 0cbe8f6dbf9e |
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/* 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.org */ #include "tomcrypt.h" /** @file cfb_setiv.c CFB implementation, set IV, Tom St Denis */ #ifdef CFB /** 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; cipher_descriptor[cfb->cipher].ecb_encrypt(IV, cfb->IV, &cfb->key); return CRYPT_OK; } #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/cfb/cfb_setiv.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2005/05/05 14:35:59 $ */