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/*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* $Id: exchange.h,v 1.1 1998/11/14 23:37:23 deraadt Exp $ */
/*
* exchange.h:
* exchange generation header file
*/
#ifndef _EXCHANGE_H_
#define _EXCHANGE_H_
#undef EXTERN
#ifdef _EXCHANGE_C_
#define EXTERN
#else
#define EXTERN extern
#endif
EXTERN void make_random_mpz(mpz_t a, mpz_t bits);
EXTERN u_int8_t *varpre_get_number_bits(mpz_t bits, u_int8_t *varpre);
EXTERN u_int8_t *mpz_set_varpre(mpz_t a, u_int8_t *varpre);
EXTERN u_int8_t *mpz_init_set_varpre(mpz_t a, u_int8_t *varpre);
EXTERN void mpz_get_number_bits(mpz_t rop, mpz_t p);
EXTERN int mpz_to_varpre(u_int8_t *value, u_int16_t *size, mpz_t p, mpz_t bits);
EXTERN int exchange_set_generator(mpz_t, u_int8_t *, u_int8_t *);
EXTERN int exchange_check_value(mpz_t, mpz_t, mpz_t);
EXTERN int exchange_make_values(struct stateob *, mpz_t, mpz_t );
EXTERN int exchange_value_generate(struct stateob *, u_int8_t *, u_int16_t *);
#endif
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