/*
 * Copyright (c) 2006-2016 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * 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. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
 */

/*
 * $Id$
 */

#ifndef _HEIM_BN_H
#define _HEIM_BN_H 1

/* symbol renaming */
#define BN_GENCB_call hc_BN_GENCB_call
#define BN_GENCB_set hc_BN_GENCB_set
#define BN_bin2bn hc_BN_bin2bn
#define BN_bn2bin hc_BN_bn2bin
#define BN_bn2hex hc_BN_bn2hex
#define BN_clear hc_BN_clear
#define BN_clear_bit hc_BN_clear_bit
#define BN_clear_free hc_BN_clear_free
#define BN_cmp hc_BN_cmp
#define BN_dup hc_BN_dup
#define BN_free hc_BN_free
#define BN_is_negative hc_BN_is_negative
#define BN_get_word hc_BN_get_word
#define BN_hex2bn hc_BN_hex2bn
#define BN_is_bit_set hc_BN_is_bit_set
#define BN_new hc_BN_new
#define BN_num_bits hc_BN_num_bits
#define BN_num_bytes hc_BN_num_bytes
#define BN_rand hc_BN_rand
#define BN_set_bit hc_BN_set_bit
#define BN_set_negative hc_BN_set_negative
#define BN_set_word hc_BN_set_word
#define BN_uadd hc_BN_uadd
#define BN_CTX_new hc_BN_CTX_new
#define BN_CTX_free hc_BN_CTX_free
#define BN_CTX_get hc_BN_CTX_get
#define BN_CTX_start hc_BN_CTX_start
#define BN_CTX_end hc_BN_CTX_end

#define BIGNUM hc_BIGNUM
#define BN_GENCB hc_BN_GENCB
#define BN_CTX hc_BN_CTX
#define BN_BLINDING hc_BN_BLINDING
#define BN_MONT_CTX hc_BN_MONT_CTX


/*
 *
 */

typedef struct BIGNUM BIGNUM;
typedef struct BN_GENCB BN_GENCB;
typedef struct BN_CTX BN_CTX;
typedef struct BN_MONT_CTX BN_MONT_CTX;
typedef struct BN_BLINDING BN_BLINDING;

struct BN_GENCB {
    unsigned int ver;
    void *arg;
    union {
	int (*cb_2)(int, int, BN_GENCB *);
    } cb;
};

/*
 *
 */

BIGNUM *BN_new(void);
void	BN_free(BIGNUM *);
void	BN_clear_free(BIGNUM *);
void	BN_clear(BIGNUM *);
BIGNUM *BN_dup(const BIGNUM *);

int	BN_num_bits(const BIGNUM *);
int	BN_num_bytes(const BIGNUM *);

int	BN_cmp(const BIGNUM *, const BIGNUM *);

void	BN_set_negative(BIGNUM *, int);
int	BN_is_negative(const BIGNUM *);

int	BN_is_bit_set(const BIGNUM *, int);
int	BN_set_bit(BIGNUM *, int);
int	BN_clear_bit(BIGNUM *, int);

int	BN_set_word(BIGNUM *, unsigned long);
unsigned long BN_get_word(const BIGNUM *);

BIGNUM *BN_bin2bn(const void *,int len,BIGNUM *);
int	BN_bn2bin(const BIGNUM *, void *);
int 	BN_hex2bn(BIGNUM **, const char *);
char *	BN_bn2hex(const BIGNUM *);

int	BN_uadd(BIGNUM *, const BIGNUM *, const BIGNUM *);

int	BN_rand(BIGNUM *, int, int, int);

void	BN_GENCB_set(BN_GENCB *, int (*)(int, int, BN_GENCB *), void *);
int	BN_GENCB_call(BN_GENCB *, int, int);

BN_CTX *BN_CTX_new(void);
void	BN_CTX_free(BN_CTX *);
BIGNUM *BN_CTX_get(BN_CTX *);
void	BN_CTX_start(BN_CTX *);
void	BN_CTX_end(BN_CTX *);

#endif