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/*
* Copyright (c) 2000, 2002 Virtual Unlimited B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*!\file blockmode.h
* \brief Blockcipher operation modes.
* \todo Additional modes, such as CFB and OFB.
* \author Bob Deblier <bob.deblier@pandora.be>
* \ingroup BC_m
*/
#ifndef _BLOCKMODE_H
#define _BLOCKMODE_H
#include "beecrypt/beecrypt.h"
#ifdef __cplusplus
extern "C" {
#endif
/*!\fn int blockEncryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
* \brief This function encrypts a number of data blocks in Electronic Code
* Book mode.
* \param bc The blockcipher.
* \param bp The cipher's parameter block.
* \param dst The ciphertext data; should be aligned on a 32-bit boundary.
* \param src The cleartext data; should be aligned on a 32-bit boundary.
* \param nblocks The number of blocks to be encrypted.
* \retval 0 on success.
*/
BEECRYPTAPI
int blockEncryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks);
/*!\fn int blockDecryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
* \brief This function decrypts a number of data blocks in Electronic Code
* Book mode.
* \param bc The blockcipher.
* \param bp The cipher's parameter block.
* \param dst The cleartext data; should be aligned on a 32-bit boundary.
* \param src The ciphertext data; should be aligned on a 32-bit boundary.
* \param nblocks The number of blocks to be decrypted.
* \retval 0 on success.
*/
BEECRYPTAPI
int blockDecryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks);
/*!\fn int blockEncryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
* \brief This function encrypts a number of data blocks in Cipher Block
* Chaining mode.
* \param bc The blockcipher.
* \param bp The cipher's parameter block.
* \param dst The ciphertext data; should be aligned on a 32-bit boundary.
* \param src The cleartext data; should be aligned on a 32-bit boundary.
* \param nblocks The number of blocks to be encrypted.
* \retval 0 on success.
*/
BEECRYPTAPI
int blockEncryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks);
/*!\fn int blockDecryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
* \brief This function decrypts a number of data blocks in Cipher Block
* Chaining mode.
* \param bc The blockcipher.
* \param bp The cipher's parameter block.
* \param dst The cleartext data; should be aligned on a 32-bit boundary.
* \param src The ciphertext data; should be aligned on a 32-bit boundary.
* \param nblocks The number of blocks to be decrypted.
* \retval 0 on success.
*/
BEECRYPTAPI
int blockDecryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks);
#ifdef __cplusplus
}
#endif
#endif
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