diff options
author | Matt Johnston <matt@ucc.asn.au> | 2007-01-11 02:41:05 +0000 |
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committer | Matt Johnston <matt@ucc.asn.au> | 2007-01-11 02:41:05 +0000 |
commit | a938f4cfe140e8561d9dbf108b896492a662a893 (patch) | |
tree | f2a74322f959ff6a505ba5e87274ebe3d17d5e74 /libtomcrypt/src/modes/f8/f8_setiv.c | |
parent | 692d737a821c5e401c227d936b8f0d76b955650f (diff) | |
parent | 28ad393b008b34bc3cdbaa192440b8cc615329f0 (diff) |
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
to branch 'au.asn.ucc.matt.dropbear' (head 02c413252c90e9de8e03d91e9939dde3029f5c0a)
--HG--
extra : convert_revision : 52ccb0ad0587a62bc64aecb939adbb76546aac16
Diffstat (limited to 'libtomcrypt/src/modes/f8/f8_setiv.c')
-rw-r--r-- | libtomcrypt/src/modes/f8/f8_setiv.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libtomcrypt/src/modes/f8/f8_setiv.c b/libtomcrypt/src/modes/f8/f8_setiv.c new file mode 100644 index 0000000..469cc15 --- /dev/null +++ b/libtomcrypt/src/modes/f8/f8_setiv.c @@ -0,0 +1,52 @@ +/* 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, tomstdenis@gmail.com, http://libtomcrypt.com + */ +#include "tomcrypt.h" + +/** + @file f8_setiv.c + F8 implementation, set IV, Tom St Denis +*/ + +#ifdef LTC_F8_MODE + +/** + Set an initial vector + @param IV The initial vector + @param len The length of the vector (in octets) + @param f8 The F8 state + @return CRYPT_OK if successful +*/ +int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8) +{ + int err; + + LTC_ARGCHK(IV != NULL); + LTC_ARGCHK(f8 != NULL); + + if ((err = cipher_is_valid(f8->cipher)) != CRYPT_OK) { + return err; + } + + if (len != (unsigned long)f8->blocklen) { + return CRYPT_INVALID_ARG; + } + + /* force next block */ + f8->padlen = 0; + return cipher_descriptor[f8->cipher].ecb_encrypt(IV, f8->IV, &f8->key); +} + +#endif + + +/* $Source: /cvs/libtom/libtomcrypt/src/modes/f8/f8_setiv.c,v $ */ +/* $Revision: 1.2 $ */ +/* $Date: 2006/06/16 22:49:25 $ */ |