Mercurial > dropbear
view libtomcrypt/src/modes/ecb/ecb_encrypt.c @ 717:74deece07742
update text about authorized_keys options
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 21 Mar 2013 23:11:16 +0800 (2013-03-21) |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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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, tomstdenis@gmail.com, http://libtomcrypt.com */ #include "tomcrypt.h" /** @file ecb_encrypt.c ECB implementation, encrypt a block, Tom St Denis */ #ifdef LTC_ECB_MODE /** ECB encrypt @param pt Plaintext @param ct [out] Ciphertext @param len The number of octets to process (must be multiple of the cipher block size) @param ecb ECB state @return CRYPT_OK if successful */ int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb) { int err; LTC_ARGCHK(pt != NULL); LTC_ARGCHK(ct != NULL); LTC_ARGCHK(ecb != NULL); if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) { return err; } if (len % cipher_descriptor[ecb->cipher].block_length) { return CRYPT_INVALID_ARG; } /* check for accel */ if (cipher_descriptor[ecb->cipher].accel_ecb_encrypt != NULL) { return cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key); } else { while (len) { if ((err = cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key)) != CRYPT_OK) { return err; } pt += cipher_descriptor[ecb->cipher].block_length; ct += cipher_descriptor[ecb->cipher].block_length; len -= cipher_descriptor[ecb->cipher].block_length; } } return CRYPT_OK; } #endif /* $Source: /cvs/libtom/libtomcrypt/src/modes/ecb/ecb_encrypt.c,v $ */ /* $Revision: 1.9 $ */ /* $Date: 2006/06/29 01:51:34 $ */