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Diffstat (limited to 'src/modes/ecb/ecb_start.c')
-rw-r--r-- | src/modes/ecb/ecb_start.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/modes/ecb/ecb_start.c b/src/modes/ecb/ecb_start.c new file mode 100644 index 0000000..f7baa81 --- /dev/null +++ b/src/modes/ecb/ecb_start.c @@ -0,0 +1,48 @@ +/* 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.org + */ +#include "tomcrypt.h" + +/** + @file ecb_start.c + ECB implementation, start chain, Tom St Denis +*/ + + +#ifdef ECB + +/** + Initialize a ECB context + @param cipher The index of the cipher desired + @param key The secret key + @param keylen The length of the secret key (octets) + @param num_rounds Number of rounds in the cipher desired (0 for default) + @param ecb The ECB state to initialize + @return CRYPT_OK if successful +*/ +int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb) +{ + int err; + LTC_ARGCHK(key != NULL); + LTC_ARGCHK(ecb != NULL); + + if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { + return err; + } + ecb->cipher = cipher; + ecb->blocklen = cipher_descriptor[cipher].block_length; + return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key); +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/modes/ecb/ecb_start.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */ |