Mercurial > dropbear
view src/misc/crypt/crypt_find_cipher_any.c @ 280:59400faa4b44 libtomcrypt-orig libtomcrypt-1.05
Re-import libtomcrypt 1.05 for cleaner propagating.
From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 08 Mar 2006 12:58:00 +0000 |
parents | |
children | d5faf4814ddb |
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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 crypt_find_cipher_any.c Find a cipher in the descriptor tables, Tom St Denis */ /** Find a cipher flexibly. First by name then if not present by block and key size @param name The name of the cipher desired @param blocklen The minimum length of the block cipher desired (octets) @param keylen The minimum length of the key size desired (octets) @return >= 0 if found, -1 if not present */ int find_cipher_any(const char *name, int blocklen, int keylen) { int x; LTC_ARGCHK(name != NULL); x = find_cipher(name); if (x != -1) return x; LTC_MUTEX_LOCK(<c_cipher_mutex); for (x = 0; x < TAB_SIZE; x++) { if (cipher_descriptor[x].name == NULL) { continue; } if (blocklen <= (int)cipher_descriptor[x].block_length && keylen <= (int)cipher_descriptor[x].max_key_length) { LTC_MUTEX_UNLOCK(<c_cipher_mutex); return x; } } LTC_MUTEX_UNLOCK(<c_cipher_mutex); return -1; } /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_cipher_any.c,v $ */ /* $Revision: 1.4 $ */ /* $Date: 2005/06/19 18:00:28 $ */