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// -*- c++ -*-
/* $Id: aes.h,v 1.6 2003/01/07 22:12:21 dm Exp $ */
/*
*
* Copyright (C) 2001 David Mazieres (dm@uun.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#ifndef _CRYPT_AES_H_
#define _CRYPT_AES_H_ 1
#include "sysconf.h"
class aes_e {
protected:
int nrounds;
u_int32_t e_key[60];
void setkey_e (const char *key, u_int keylen);
public:
~aes_e () { nrounds = 0; bzero (e_key, sizeof (e_key)); }
void setkey (const void *key, u_int keylen);
void encipher_bytes (void *buf, const void *ibuf) const;
void encipher_bytes (void *buf) const { encipher_bytes (buf, buf); }
};
class aes : public aes_e {
protected:
u_int32_t d_key[60];
void setkey_d ();
public:
~aes () { bzero (d_key, sizeof (d_key)); }
void setkey (const void *key, u_int keylen);
void decipher_bytes (void *buf, const void *ibuf) const;
void decipher_bytes (void *buf) const { decipher_bytes (buf, buf); }
};
#endif /* !_CRYPT_AES_H_ */
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