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/*-
* Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org>
* 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.
*
* 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.
*/
#ifndef FAUXBN_H_
#define FAUXBN_H_ 20100108
#include <sys/types.h>
#ifndef _KERNEL
# include <inttypes.h>
# include <stdio.h>
#endif
#ifndef __BEGIN_DECLS
# if defined(__cplusplus)
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
# else
# define __BEGIN_DECLS
# define __END_DECLS
# endif
#endif
__BEGIN_DECLS
/* should be 32bit on ILP32, 64bit on LP64 */
typedef unsigned long mp_digit;
typedef uint64_t mp_word;
/* multi-precision integer */
typedef struct mp_int {
mp_digit *dp; /* array of digits */
int used; /* # of digits used */
int alloc; /* # of digits allocated */
int sign; /* non-zero if negative */
} mp_int;
#define BIGNUM mp_int
#define BN_ULONG mp_digit
/* a "context" of mp integers - never really used */
typedef struct bn_ctx_t {
size_t count;
size_t arraysize;
BIGNUM **v;
} BN_CTX;
#define MP_LT -1
#define MP_EQ 0
#define MP_GT 1
#define MP_ZPOS 0
#define MP_NEG 1
#define MP_OKAY 0
#define MP_MEM -2
#define MP_VAL -3
#define MP_RANGE MP_VAL
/*********************************/
#define BN_is_negative(x) ((x)->sign == MP_NEG)
#define BN_is_zero(a) (((a)->used == 0) ? 1 : 0)
#define BN_is_odd(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 1)) ? 1 : 0)
#define BN_is_even(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 0)) ? 1 : 0)
BIGNUM *BN_new(void);
BIGNUM *BN_dup(const BIGNUM */*a*/);
int BN_copy(BIGNUM */*b*/, const BIGNUM */*a*/);
void BN_init(BIGNUM */*a*/);
void BN_free(BIGNUM */*a*/);
void BN_clear(BIGNUM */*a*/);
void BN_clear_free(BIGNUM */*a*/);
int BN_cmp(BIGNUM */*a*/, BIGNUM */*b*/);
BIGNUM *BN_bin2bn(const uint8_t */*buf*/, int /*size*/, BIGNUM */*bn*/);
int BN_bn2bin(const BIGNUM */*a*/, unsigned char */*b*/);
char *BN_bn2hex(const BIGNUM */*a*/);
char *BN_bn2dec(const BIGNUM */*a*/);
int BN_hex2bn(BIGNUM **/*a*/, const char */*str*/);
int BN_dec2bn(BIGNUM **/*a*/, const char */*str*/);
#ifndef _KERNEL
int BN_print_fp(FILE */*fp*/, const BIGNUM */*a*/);
#endif
int BN_add(BIGNUM */*r*/, const BIGNUM */*a*/, const BIGNUM */*b*/);
int BN_sub(BIGNUM */*r*/, const BIGNUM */*a*/, const BIGNUM */*b*/);
int BN_mul(BIGNUM */*r*/, const BIGNUM */*a*/, const BIGNUM */*b*/, BN_CTX */*ctx*/);
int BN_div(BIGNUM */*q*/, BIGNUM */*r*/, const BIGNUM */*a*/, const BIGNUM */*b*/, BN_CTX */*ctx*/);
void BN_swap(BIGNUM */*a*/, BIGNUM */*b*/);
int BN_lshift(BIGNUM */*r*/, const BIGNUM */*a*/, int /*n*/);
int BN_lshift1(BIGNUM */*r*/, BIGNUM */*a*/);
int BN_rshift(BIGNUM */*r*/, const BIGNUM */*a*/, int /*n*/);
int BN_rshift1(BIGNUM */*r*/, BIGNUM */*a*/);
int BN_set_word(BIGNUM */*a*/, BN_ULONG /*w*/);
void BN_set_negative(BIGNUM */*a*/, int /*n*/);
int BN_num_bytes(const BIGNUM */*a*/);
int BN_num_bits(const BIGNUM */*a*/);
int BN_mod_exp(BIGNUM */*r*/, BIGNUM */*a*/, BIGNUM */*p*/, BIGNUM */*m*/, BN_CTX */*ctx*/);
BIGNUM *BN_mod_inverse(BIGNUM */*ret*/, BIGNUM */*a*/, const BIGNUM */*n*/, BN_CTX */*ctx*/);
int BN_mod_mul(BIGNUM */*ret*/, BIGNUM */*a*/, BIGNUM */*b*/, const BIGNUM */*m*/, BN_CTX */*ctx*/);
int BN_mod_sub(BIGNUM */*r*/, BIGNUM */*a*/, BIGNUM */*b*/, const BIGNUM */*m*/, BN_CTX */*ctx*/);
BN_CTX *BN_CTX_new(void);
BIGNUM *BN_CTX_get(BN_CTX */*ctx*/);
void BN_CTX_start(BN_CTX */*ctx*/);
void BN_CTX_end(BN_CTX */*ctx*/);
void BN_CTX_init(BN_CTX */*c*/);
void BN_CTX_free(BN_CTX */*c*/);
int BN_rand(BIGNUM */*rnd*/, int /*bits*/, int /*top*/, int /*bottom*/);
int BN_rand_range(BIGNUM */*rnd*/, BIGNUM */*range*/);
int BN_is_prime(const BIGNUM */*a*/, int /*checks*/, void (*callback)(int, int, void *), BN_CTX */*ctx*/, void */*cb_arg*/);
const BIGNUM *BN_value_one(void);
int BN_is_bit_set(const BIGNUM */*a*/, int /*n*/);
__END_DECLS
#endif
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