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/*
 * Copyright (C) 2000-2012 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS 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 3 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 program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

#ifndef GNUTLS_MPI_H
#define GNUTLS_MPI_H

#include <gnutls_int.h>

#include <crypto-backend.h>

extern int crypto_bigint_prio;
extern gnutls_crypto_bigint_st _gnutls_mpi_ops;

bigint_t _gnutls_mpi_randomize (bigint_t, unsigned int bits,
                                gnutls_rnd_level_t level);

#define _gnutls_mpi_new(x) _gnutls_mpi_ops.bigint_new(x)
#define _gnutls_mpi_cmp(x,y) _gnutls_mpi_ops.bigint_cmp(x,y)
#define _gnutls_mpi_cmp_ui(x,y) _gnutls_mpi_ops.bigint_cmp_ui(x,y)
#define _gnutls_mpi_mod(x,y) _gnutls_mpi_ops.bigint_mod(x,y)
#define _gnutls_mpi_set(x,y) _gnutls_mpi_ops.bigint_set(x,y)
#define _gnutls_mpi_set_ui(x,y) _gnutls_mpi_ops.bigint_set_ui(x,y)
#define _gnutls_mpi_get_nbits(x) _gnutls_mpi_ops.bigint_get_nbits(x)
#define _gnutls_mpi_alloc_like(x) _gnutls_mpi_new(_gnutls_mpi_get_nbits(x))
#define _gnutls_mpi_powm(x,y,z,w) _gnutls_mpi_ops.bigint_powm(x,y,z,w)
#define _gnutls_mpi_addm(x,y,z,w) _gnutls_mpi_ops.bigint_addm(x,y,z,w)
#define _gnutls_mpi_subm(x,y,z,w) _gnutls_mpi_ops.bigint_subm(x,y,z,w)
#define _gnutls_mpi_mulm(x,y,z,w) _gnutls_mpi_ops.bigint_mulm(x,y,z,w)
#define _gnutls_mpi_add(x,y,z) _gnutls_mpi_ops.bigint_add(x,y,z)
#define _gnutls_mpi_sub(x,y,z) _gnutls_mpi_ops.bigint_sub(x,y,z)
#define _gnutls_mpi_mul(x,y,z) _gnutls_mpi_ops.bigint_mul(x,y,z)
#define _gnutls_mpi_div(x,y,z) _gnutls_mpi_ops.bigint_div(x,y,z)
#define _gnutls_mpi_add_ui(x,y,z) _gnutls_mpi_ops.bigint_add_ui(x,y,z)
#define _gnutls_mpi_sub_ui(x,y,z) _gnutls_mpi_ops.bigint_sub_ui(x,y,z)
#define _gnutls_mpi_mul_ui(x,y,z) _gnutls_mpi_ops.bigint_mul_ui(x,y,z)
#define _gnutls_prime_check(z) _gnutls_mpi_ops.bigint_prime_check(z)
#define _gnutls_mpi_print(x,y,z) _gnutls_mpi_ops.bigint_print(x,y,z,GNUTLS_MPI_FORMAT_USG)
#define _gnutls_mpi_print_lz(x,y,z) _gnutls_mpi_ops.bigint_print(x,y,z,GNUTLS_MPI_FORMAT_STD)
#define _gnutls_mpi_print_pgp(x,y,z) _gnutls_mpi_ops.bigint_print(x,y,z,GNUTLS_MPI_FORMAT_PGP)
#define _gnutls_mpi_copy( a) _gnutls_mpi_set( NULL, a)

void _gnutls_mpi_release (bigint_t * x);

int _gnutls_mpi_scan (bigint_t * ret_mpi, const void *buffer, size_t nbytes);
int _gnutls_mpi_scan_nz (bigint_t * ret_mpi, const void *buffer,
                         size_t nbytes);
int _gnutls_mpi_scan_pgp (bigint_t * ret_mpi, const void *buffer,
                          size_t nbytes);

int _gnutls_mpi_dprint_lz (const bigint_t a, gnutls_datum_t * dest);
int _gnutls_mpi_dprint (const bigint_t a, gnutls_datum_t * dest);
int _gnutls_mpi_dprint_size (const bigint_t a, gnutls_datum_t * dest,
                             size_t size);

#define _gnutls_mpi_generate_group( gg, bits) _gnutls_mpi_ops.bigint_generate_group( gg, bits)

#endif