mtprng.h

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/*
 * Copyright (c) 1998, 1999, 2000, 2003 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
 *
 */

#ifndef _MTPRNG_H
#define _MTPRNG_H

#include "beecrypt.h"

#ifdef _REENTRANT
# if WIN32
#  include <windows.h>
#  include <winbase.h>
# endif
#endif

#define N   624
#define M   397
#define K   0x9908B0DFU

/*
 */
typedef struct
{
    #ifdef _REENTRANT
    # if WIN32
    HANDLE      lock;
    # else
    bc_lock_t   lock;
    # endif
    #endif
    uint32_t    state[N+1];
    uint32_t    left;
    uint32_t*   nextw;
} mtprngParam;

#ifdef __cplusplus
extern "C" {
#endif

/*
 */
extern BEECRYPTAPI const randomGenerator mtprng;

/*
 */
BEECRYPTAPI
int mtprngSetup  (mtprngParam* mp);

/*
 */
BEECRYPTAPI
int mtprngSeed   (mtprngParam* mp, const byte* data, size_t size);

/*
 */
BEECRYPTAPI
int mtprngNext   (mtprngParam* mp, byte* data, size_t size);

/*
 */
BEECRYPTAPI
int mtprngCleanup(mtprngParam* mp);

#ifdef __cplusplus
}
#endif

#endif

---