Mercurial > dropbear
view cbc_start.c @ 0:d7da3b1e1540 libtomcrypt
put back the 0.95 makefile which was inadvertently merged over
author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 May 2004 18:21:40 +0000 |
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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 "mycrypt.h" #ifdef CBC int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key, int keylen, int num_rounds, symmetric_CBC *cbc) { int x, err; _ARGCHK(IV != NULL); _ARGCHK(key != NULL); _ARGCHK(cbc != NULL); /* bad param? */ if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { return err; } /* setup cipher */ if ((err = cipher_descriptor[cipher].setup(key, keylen, num_rounds, &cbc->key)) != CRYPT_OK) { return err; } /* copy IV */ cbc->blocklen = cipher_descriptor[cipher].block_length; cbc->cipher = cipher; for (x = 0; x < cbc->blocklen; x++) { cbc->IV[x] = IV[x]; } return CRYPT_OK; } #endif