* Creating w32 port for compilation of Alpine. This is intended for old

    machines that cannot be updated. Long story short: Always use the
    command "build wnt" to build Alpine. If that does not work, try
    "build w32", which is for machines that are too old and do not have
    any way to use modern encryption protocols such as TLSv1.2.

    The version of Alpine built in modern machines will be called
    alpine.exe, and the binary built with the port w32 will be called
    alpine32 in the repository. All other binaries can be downloaded from
    the main web site, and they will not have the suffix "32" there.

1 files changed, 714 insertions, 0 deletions

diff --git a/libressl/include32/openssl/bn.h b/libressl/include32/openssl/bn.h
new file mode 100644
index 00000000..0dde08a3
--- /dev/null
+++ b/libressl/include32/openssl/bn.h
@@ -0,0 +1,714 @@
+/* $OpenBSD: bn.h,v 1.36 2017/01/25 06:15:44 beck Exp $ */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2006 The OpenSSL Project.  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 acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * Portions of the attached software ("Contribution") are developed by
+ * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
+ *
+ * The Contribution is licensed pursuant to the Eric Young open source
+ * license provided above.
+ *
+ * The binary polynomial arithmetic software is originally written by
+ * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
+ *
+ */
+
+#ifndef HEADER_BN_H
+#define HEADER_BN_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <openssl/opensslconf.h>
+
+#include <openssl/ossl_typ.h>
+#include <openssl/crypto.h>
+#include <openssl/bio.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* These preprocessor symbols control various aspects of the bignum headers and
+ * library code. They're not defined by any "normal" configuration, as they are
+ * intended for development and testing purposes. NB: defining all three can be
+ * useful for debugging application code as well as openssl itself.
+ *
+ * BN_DEBUG - turn on various debugging alterations to the bignum code
+ * BN_DEBUG_RAND - uses random poisoning of unused words to trip up
+ * mismanagement of bignum internals. You must also define BN_DEBUG.
+ */
+/* #define BN_DEBUG */
+/* #define BN_DEBUG_RAND */
+
+#ifndef OPENSSL_SMALL_FOOTPRINT
+#define BN_MUL_COMBA
+#define BN_SQR_COMBA
+#define BN_RECURSION
+#endif
+
+/* This next option uses the C libraries (2 word)/(1 word) function.
+ * If it is not defined, I use my C version (which is slower).
+ * The reason for this flag is that when the particular C compiler
+ * library routine is used, and the library is linked with a different
+ * compiler, the library is missing.  This mostly happens when the
+ * library is built with gcc and then linked using normal cc.  This would
+ * be a common occurrence because gcc normally produces code that is
+ * 2 times faster than system compilers for the big number stuff.
+ * For machines with only one compiler (or shared libraries), this should
+ * be on.  Again this in only really a problem on machines
+ * using "long long's", are 32bit, and are not using my assembler code. */
+/* #define BN_DIV2W */
+
+#ifdef _LP64
+#undef	BN_LLONG
+#define BN_ULONG	unsigned long
+#define BN_LONG		long
+#define BN_BITS		128
+#define BN_BYTES	8
+#define BN_BITS2	64
+#define BN_BITS4	32
+#define BN_MASK2	(0xffffffffffffffffL)
+#define BN_MASK2l	(0xffffffffL)
+#define BN_MASK2h	(0xffffffff00000000L)
+#define BN_MASK2h1	(0xffffffff80000000L)
+#define BN_TBIT		(0x8000000000000000L)
+#define BN_DEC_CONV	(10000000000000000000UL)
+#define BN_DEC_FMT1	"%lu"
+#define BN_DEC_FMT2	"%019lu"
+#define BN_DEC_NUM	19
+#define BN_HEX_FMT1	"%lX"
+#define BN_HEX_FMT2	"%016lX"
+#else
+#define BN_ULLONG	unsigned long long
+#define	BN_LLONG
+#define BN_ULONG	unsigned int
+#define BN_LONG		int
+#define BN_BITS		64
+#define BN_BYTES	4
+#define BN_BITS2	32
+#define BN_BITS4	16
+#define BN_MASK		(0xffffffffffffffffLL)
+#define BN_MASK2	(0xffffffffL)
+#define BN_MASK2l	(0xffff)
+#define BN_MASK2h1	(0xffff8000L)
+#define BN_MASK2h	(0xffff0000L)
+#define BN_TBIT		(0x80000000L)
+#define BN_DEC_CONV	(1000000000L)
+#define BN_DEC_FMT1	"%u"
+#define BN_DEC_FMT2	"%09u"
+#define BN_DEC_NUM	9
+#define BN_HEX_FMT1	"%X"
+#define BN_HEX_FMT2	"%08X"
+#endif
+
+#define BN_FLG_MALLOCED		0x01
+#define BN_FLG_STATIC_DATA	0x02
+#define BN_FLG_CONSTTIME	0x04 /* avoid leaking exponent information through timing,
+                                      * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
+                                      * BN_div() will call BN_div_no_branch,
+                                      * BN_mod_inverse() will call BN_mod_inverse_no_branch.
+                                      */
+
+#ifndef OPENSSL_NO_DEPRECATED
+#define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME /* deprecated name for the flag */
+                                      /* avoid leaking exponent information through timings
+                                      * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime) */
+#endif
+
+#ifndef OPENSSL_NO_DEPRECATED
+#define BN_FLG_FREE		0x8000	/* used for debuging */
+#endif
+#define BN_set_flags(b,n)	((b)->flags|=(n))
+#define BN_get_flags(b,n)	((b)->flags&(n))
+
+/* get a clone of a BIGNUM with changed flags, for *temporary* use only
+ * (the two BIGNUMs cannot not be used in parallel!) */
+#define BN_with_flags(dest,b,n)  ((dest)->d=(b)->d, \
+                                  (dest)->top=(b)->top, \
+                                  (dest)->dmax=(b)->dmax, \
+                                  (dest)->neg=(b)->neg, \
+                                  (dest)->flags=(((dest)->flags & BN_FLG_MALLOCED) \
+                                                 |  ((b)->flags & ~BN_FLG_MALLOCED) \
+                                                 |  BN_FLG_STATIC_DATA \
+                                                 |  (n)))
+
+struct bignum_st {
+	BN_ULONG *d;	/* Pointer to an array of 'BN_BITS2' bit chunks. */
+	int top;	/* Index of last used d +1. */
+	/* The next are internal book keeping for bn_expand. */
+	int dmax;	/* Size of the d array. */
+	int neg;	/* one if the number is negative */
+	int flags;
+};
+
+/* Used for montgomery multiplication */
+struct bn_mont_ctx_st {
+	int ri;        /* number of bits in R */
+	BIGNUM RR;     /* used to convert to montgomery form */
+	BIGNUM N;      /* The modulus */
+	BIGNUM Ni;     /* R*(1/R mod N) - N*Ni = 1
+	                * (Ni is only stored for bignum algorithm) */
+	BN_ULONG n0[2];/* least significant word(s) of Ni;
+	                  (type changed with 0.9.9, was "BN_ULONG n0;" before) */
+	int flags;
+};
+
+/* Used for reciprocal division/mod functions
+ * It cannot be shared between threads
+ */
+struct bn_recp_ctx_st {
+	BIGNUM N;	/* the divisor */
+	BIGNUM Nr;	/* the reciprocal */
+	int num_bits;
+	int shift;
+	int flags;
+};
+
+/* Used for slow "generation" functions. */
+struct bn_gencb_st {
+	unsigned int ver;	/* To handle binary (in)compatibility */
+	void *arg;		/* callback-specific data */
+	union {
+		/* if(ver==1) - handles old style callbacks */
+		void (*cb_1)(int, int, void *);
+		/* if(ver==2) - new callback style */
+		int (*cb_2)(int, int, BN_GENCB *);
+	} cb;
+};
+/* Wrapper function to make using BN_GENCB easier,  */
+int BN_GENCB_call(BN_GENCB *cb, int a, int b);
+/* Macro to populate a BN_GENCB structure with an "old"-style callback */
+#define BN_GENCB_set_old(gencb, callback, cb_arg) { \
+		BN_GENCB *tmp_gencb = (gencb); \
+		tmp_gencb->ver = 1; \
+		tmp_gencb->arg = (cb_arg); \
+		tmp_gencb->cb.cb_1 = (callback); }
+/* Macro to populate a BN_GENCB structure with a "new"-style callback */
+#define BN_GENCB_set(gencb, callback, cb_arg) { \
+		BN_GENCB *tmp_gencb = (gencb); \
+		tmp_gencb->ver = 2; \
+		tmp_gencb->arg = (cb_arg); \
+		tmp_gencb->cb.cb_2 = (callback); }
+
+#define BN_prime_checks 0 /* default: select number of iterations
+			     based on the size of the number */
+
+/* number of Miller-Rabin iterations for an error rate  of less than 2^-80
+ * for random 'b'-bit input, b >= 100 (taken from table 4.4 in the Handbook
+ * of Applied Cryptography [Menezes, van Oorschot, Vanstone; CRC Press 1996];
+ * original paper: Damgaard, Landrock, Pomerance: Average case error estimates
+ * for the strong probable prime test. -- Math. Comp. 61 (1993) 177-194) */
+#define BN_prime_checks_for_size(b) ((b) >= 1300 ?  2 : \
+                                (b) >=  850 ?  3 : \
+                                (b) >=  650 ?  4 : \
+                                (b) >=  550 ?  5 : \
+                                (b) >=  450 ?  6 : \
+                                (b) >=  400 ?  7 : \
+                                (b) >=  350 ?  8 : \
+                                (b) >=  300 ?  9 : \
+                                (b) >=  250 ? 12 : \
+                                (b) >=  200 ? 15 : \
+                                (b) >=  150 ? 18 : \
+                                /* b >= 100 */ 27)
+
+#define BN_num_bytes(a)	((BN_num_bits(a)+7)/8)
+
+/* Note that BN_abs_is_word didn't work reliably for w == 0 until 0.9.8 */
+#define BN_abs_is_word(a,w) ((((a)->top == 1) && ((a)->d[0] == (BN_ULONG)(w))) || \
+				(((w) == 0) && ((a)->top == 0)))
+#define BN_is_zero(a)       ((a)->top == 0)
+#define BN_is_one(a)        (BN_abs_is_word((a),1) && !(a)->neg)
+#define BN_is_word(a,w)     (BN_abs_is_word((a),(w)) && (!(w) || !(a)->neg))
+#define BN_is_odd(a)	    (((a)->top > 0) && ((a)->d[0] & 1))
+
+#define BN_one(a)	(BN_set_word((a),1))
+#define BN_zero_ex(a) \
+	do { \
+		BIGNUM *_tmp_bn = (a); \
+		_tmp_bn->top = 0; \
+		_tmp_bn->neg = 0; \
+	} while(0)
+
+#ifdef OPENSSL_NO_DEPRECATED
+#define BN_zero(a)	BN_zero_ex(a)
+#else
+#define BN_zero(a)	(BN_set_word((a),0))
+#endif
+
+const BIGNUM *BN_value_one(void);
+char *	BN_options(void);
+BN_CTX *BN_CTX_new(void);
+#ifndef OPENSSL_NO_DEPRECATED
+void	BN_CTX_init(BN_CTX *c);
+#endif
+void	BN_CTX_free(BN_CTX *c);
+void	BN_CTX_start(BN_CTX *ctx);
+BIGNUM *BN_CTX_get(BN_CTX *ctx);
+void	BN_CTX_end(BN_CTX *ctx);
+int     BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
+int     BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
+int	BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
+int	BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
+int	BN_num_bits(const BIGNUM *a);
+int	BN_num_bits_word(BN_ULONG);
+BIGNUM *BN_new(void);
+void	BN_init(BIGNUM *);
+void	BN_clear_free(BIGNUM *a);
+BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
+void	BN_swap(BIGNUM *a, BIGNUM *b);
+BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret);
+int	BN_bn2bin(const BIGNUM *a, unsigned char *to);
+BIGNUM *BN_mpi2bn(const unsigned char *s, int len, BIGNUM *ret);
+int	BN_bn2mpi(const BIGNUM *a, unsigned char *to);
+int	BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
+int	BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
+int	BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
+int	BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
+int	BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
+int	BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
+/** BN_set_negative sets sign of a BIGNUM
+ * \param  b  pointer to the BIGNUM object
+ * \param  n  0 if the BIGNUM b should be positive and a value != 0 otherwise
+ */
+void	BN_set_negative(BIGNUM *b, int n);
+/** BN_is_negative returns 1 if the BIGNUM is negative
+ * \param  a  pointer to the BIGNUM object
+ * \return 1 if a < 0 and 0 otherwise
+ */
+#define BN_is_negative(a) ((a)->neg != 0)
+
+#ifndef LIBRESSL_INTERNAL
+int	BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
+    BN_CTX *ctx);
+#define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
+#endif
+int	BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
+int	BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
+int	BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
+int	BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+    const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
+int	BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
+
+BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
+BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
+int	BN_mul_word(BIGNUM *a, BN_ULONG w);
+int	BN_add_word(BIGNUM *a, BN_ULONG w);
+int	BN_sub_word(BIGNUM *a, BN_ULONG w);
+int	BN_set_word(BIGNUM *a, BN_ULONG w);
+BN_ULONG BN_get_word(const BIGNUM *a);
+
+int	BN_cmp(const BIGNUM *a, const BIGNUM *b);
+void	BN_free(BIGNUM *a);
+int	BN_is_bit_set(const BIGNUM *a, int n);
+int	BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
+int	BN_lshift1(BIGNUM *r, const BIGNUM *a);
+int	BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+
+#ifndef LIBRESSL_INTERNAL
+int	BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx);
+int	BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+#endif
+int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont);
+int	BN_mod_exp_mont_word(BIGNUM *r, BN_ULONG a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+int	BN_mod_exp2_mont(BIGNUM *r, const BIGNUM *a1, const BIGNUM *p1,
+    const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,
+    BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+int	BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx);
+
+int	BN_mask_bits(BIGNUM *a, int n);
+int	BN_print_fp(FILE *fp, const BIGNUM *a);
+int	BN_print(BIO *fp, const BIGNUM *a);
+int	BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx);
+int	BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
+int	BN_rshift1(BIGNUM *r, const BIGNUM *a);
+void	BN_clear(BIGNUM *a);
+BIGNUM *BN_dup(const BIGNUM *a);
+int	BN_ucmp(const BIGNUM *a, const BIGNUM *b);
+int	BN_set_bit(BIGNUM *a, int n);
+int	BN_clear_bit(BIGNUM *a, int n);
+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);
+int	BN_asc2bn(BIGNUM **a, const char *str);
+#ifndef LIBRESSL_INTERNAL
+int	BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
+#endif
+int	BN_kronecker(const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx); /* returns -2 for error */
+#ifndef LIBRESSL_INTERNAL
+BIGNUM *BN_mod_inverse(BIGNUM *ret,
+    const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
+#endif
+BIGNUM *BN_mod_sqrt(BIGNUM *ret,
+    const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
+
+void	BN_consttime_swap(BN_ULONG swap, BIGNUM *a, BIGNUM *b, int nwords);
+
+/* Deprecated versions */
+#ifndef OPENSSL_NO_DEPRECATED
+BIGNUM *BN_generate_prime(BIGNUM *ret, int bits, int safe,
+    const BIGNUM *add, const BIGNUM *rem,
+    void (*callback)(int, int, void *), void *cb_arg);
+int	BN_is_prime(const BIGNUM *p, int nchecks,
+    void (*callback)(int, int, void *),
+    BN_CTX *ctx, void *cb_arg);
+int	BN_is_prime_fasttest(const BIGNUM *p, int nchecks,
+    void (*callback)(int, int, void *), BN_CTX *ctx, void *cb_arg,
+    int do_trial_division);
+#endif /* !defined(OPENSSL_NO_DEPRECATED) */
+
+/* Newer versions */
+int	BN_generate_prime_ex(BIGNUM *ret, int bits, int safe, const BIGNUM *add,
+    const BIGNUM *rem, BN_GENCB *cb);
+int	BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, BN_GENCB *cb);
+int	BN_is_prime_fasttest_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx,
+    int do_trial_division, BN_GENCB *cb);
+
+int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx);
+
+int BN_X931_derive_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
+    const BIGNUM *Xp, const BIGNUM *Xp1, const BIGNUM *Xp2,
+    const BIGNUM *e, BN_CTX *ctx, BN_GENCB *cb);
+int BN_X931_generate_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
+    BIGNUM *Xp1, BIGNUM *Xp2,
+    const BIGNUM *Xp,
+    const BIGNUM *e, BN_CTX *ctx,
+    BN_GENCB *cb);
+
+BN_MONT_CTX *BN_MONT_CTX_new(void );
+void BN_MONT_CTX_init(BN_MONT_CTX *ctx);
+int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+    BN_MONT_CTX *mont, BN_CTX *ctx);
+#define BN_to_montgomery(r,a,mont,ctx)	BN_mod_mul_montgomery(\
+	(r),(a),&((mont)->RR),(mont),(ctx))
+int BN_from_montgomery(BIGNUM *r, const BIGNUM *a,
+    BN_MONT_CTX *mont, BN_CTX *ctx);
+void BN_MONT_CTX_free(BN_MONT_CTX *mont);
+int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx);
+BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, BN_MONT_CTX *from);
+BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
+    const BIGNUM *mod, BN_CTX *ctx);
+
+/* BN_BLINDING flags */
+#define	BN_BLINDING_NO_UPDATE	0x00000001
+#define	BN_BLINDING_NO_RECREATE	0x00000002
+
+BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod);
+void BN_BLINDING_free(BN_BLINDING *b);
+int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx);
+int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
+int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
+int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *);
+int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *);
+#ifndef OPENSSL_NO_DEPRECATED
+unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
+void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
+#endif
+CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
+unsigned long BN_BLINDING_get_flags(const BN_BLINDING *);
+void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long);
+BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
+    const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
+    int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
+    BN_MONT_CTX *m_ctx);
+
+#ifndef OPENSSL_NO_DEPRECATED
+void BN_set_params(int mul, int high, int low, int mont);
+int BN_get_params(int which); /* 0, mul, 1 high, 2 low, 3 mont */
+#endif
+
+void	BN_RECP_CTX_init(BN_RECP_CTX *recp);
+BN_RECP_CTX *BN_RECP_CTX_new(void);
+void	BN_RECP_CTX_free(BN_RECP_CTX *recp);
+int	BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *rdiv, BN_CTX *ctx);
+int	BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,
+    BN_RECP_CTX *recp, BN_CTX *ctx);
+int	BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+    const BIGNUM *m, BN_CTX *ctx);
+int	BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
+    BN_RECP_CTX *recp, BN_CTX *ctx);
+
+#ifndef OPENSSL_NO_EC2M
+
+/* Functions for arithmetic over binary polynomials represented by BIGNUMs.
+ *
+ * The BIGNUM::neg property of BIGNUMs representing binary polynomials is
+ * ignored.
+ *
+ * Note that input arguments are not const so that their bit arrays can
+ * be expanded to the appropriate size if needed.
+ */
+
+int	BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b); /*r = a + b*/
+#define BN_GF2m_sub(r, a, b) BN_GF2m_add(r, a, b)
+int	BN_GF2m_mod(BIGNUM *r, const BIGNUM *a, const BIGNUM *p); /*r=a mod p*/
+int
+BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const BIGNUM *p, BN_CTX *ctx); /* r = (a * b) mod p */
+int
+BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+	BN_CTX *ctx); /* r = (a * a) mod p */
+int
+BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *b, const BIGNUM *p,
+	BN_CTX *ctx); /* r = (1 / b) mod p */
+int
+BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const BIGNUM *p, BN_CTX *ctx); /* r = (a / b) mod p */
+int
+BN_GF2m_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const BIGNUM *p, BN_CTX *ctx); /* r = (a ^ b) mod p */
+int
+BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+	BN_CTX *ctx); /* r = sqrt(a) mod p */
+int	BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+	BN_CTX *ctx); /* r^2 + r = a mod p */
+#define BN_GF2m_cmp(a, b) BN_ucmp((a), (b))
+/* Some functions allow for representation of the irreducible polynomials
+ * as an unsigned int[], say p.  The irreducible f(t) is then of the form:
+ *     t^p[0] + t^p[1] + ... + t^p[k]
+ * where m = p[0] > p[1] > ... > p[k] = 0.
+ */
+int	BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[]);
+/* r = a mod p */
+int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const int p[], BN_CTX *ctx); /* r = (a * b) mod p */
+int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
+	BN_CTX *ctx); /* r = (a * a) mod p */
+int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *b, const int p[],
+	BN_CTX *ctx); /* r = (1 / b) mod p */
+int	BN_GF2m_mod_div_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const int p[], BN_CTX *ctx); /* r = (a / b) mod p */
+int	BN_GF2m_mod_exp_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
+	const int p[], BN_CTX *ctx); /* r = (a ^ b) mod p */
+int	BN_GF2m_mod_sqrt_arr(BIGNUM *r, const BIGNUM *a,
+	const int p[], BN_CTX *ctx); /* r = sqrt(a) mod p */
+int	BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a,
+	const int p[], BN_CTX *ctx); /* r^2 + r = a mod p */
+int	BN_GF2m_poly2arr(const BIGNUM *a, int p[], int max);
+int	BN_GF2m_arr2poly(const int p[], BIGNUM *a);
+
+#endif
+
+/* faster mod functions for the 'NIST primes'
+ * 0 <= a < p^2 */
+int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
+
+const BIGNUM *BN_get0_nist_prime_192(void);
+const BIGNUM *BN_get0_nist_prime_224(void);
+const BIGNUM *BN_get0_nist_prime_256(void);
+const BIGNUM *BN_get0_nist_prime_384(void);
+const BIGNUM *BN_get0_nist_prime_521(void);
+
+/* Primes from RFC 2409 */
+BIGNUM *get_rfc2409_prime_768(BIGNUM *bn);
+BIGNUM *get_rfc2409_prime_1024(BIGNUM *bn);
+
+/* Primes from RFC 3526 */
+BIGNUM *get_rfc3526_prime_1536(BIGNUM *bn);
+BIGNUM *get_rfc3526_prime_2048(BIGNUM *bn);
+BIGNUM *get_rfc3526_prime_3072(BIGNUM *bn);
+BIGNUM *get_rfc3526_prime_4096(BIGNUM *bn);
+BIGNUM *get_rfc3526_prime_6144(BIGNUM *bn);
+BIGNUM *get_rfc3526_prime_8192(BIGNUM *bn);
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_BN_strings(void);
+
+/* Error codes for the BN functions. */
+
+/* Function codes. */
+#define BN_F_BNRAND					 127
+#define BN_F_BN_BLINDING_CONVERT_EX			 100
+#define BN_F_BN_BLINDING_CREATE_PARAM			 128
+#define BN_F_BN_BLINDING_INVERT_EX			 101
+#define BN_F_BN_BLINDING_NEW				 102
+#define BN_F_BN_BLINDING_UPDATE				 103
+#define BN_F_BN_BN2DEC					 104
+#define BN_F_BN_BN2HEX					 105
+#define BN_F_BN_CTX_GET					 116
+#define BN_F_BN_CTX_NEW					 106
+#define BN_F_BN_CTX_START				 129
+#define BN_F_BN_DIV					 107
+#define BN_F_BN_DIV_NO_BRANCH				 138
+#define BN_F_BN_DIV_RECP				 130
+#define BN_F_BN_EXP					 123
+#define BN_F_BN_EXPAND2					 108
+#define BN_F_BN_GENERATE_PRIME_EX			 140
+#define BN_F_BN_EXPAND_INTERNAL				 120
+#define BN_F_BN_GF2M_MOD				 131
+#define BN_F_BN_GF2M_MOD_EXP				 132
+#define BN_F_BN_GF2M_MOD_MUL				 133
+#define BN_F_BN_GF2M_MOD_SOLVE_QUAD			 134
+#define BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR			 135
+#define BN_F_BN_GF2M_MOD_SQR				 136
+#define BN_F_BN_GF2M_MOD_SQRT				 137
+#define BN_F_BN_MOD_EXP2_MONT				 118
+#define BN_F_BN_MOD_EXP_MONT				 109
+#define BN_F_BN_MOD_EXP_MONT_CONSTTIME			 124
+#define BN_F_BN_MOD_EXP_MONT_WORD			 117
+#define BN_F_BN_MOD_EXP_RECP				 125
+#define BN_F_BN_MOD_EXP_SIMPLE				 126
+#define BN_F_BN_MOD_INVERSE				 110
+#define BN_F_BN_MOD_INVERSE_NO_BRANCH			 139
+#define BN_F_BN_MOD_LSHIFT_QUICK			 119
+#define BN_F_BN_MOD_MUL_RECIPROCAL			 111
+#define BN_F_BN_MOD_SQRT				 121
+#define BN_F_BN_MPI2BN					 112
+#define BN_F_BN_NEW					 113
+#define BN_F_BN_RAND					 114
+#define BN_F_BN_RAND_RANGE				 122
+#define BN_F_BN_USUB					 115
+
+/* Reason codes. */
+#define BN_R_ARG2_LT_ARG3				 100
+#define BN_R_BAD_RECIPROCAL				 101
+#define BN_R_BIGNUM_TOO_LONG				 114
+#define BN_R_BITS_TOO_SMALL				 117
+#define BN_R_CALLED_WITH_EVEN_MODULUS			 102
+#define BN_R_DIV_BY_ZERO				 103
+#define BN_R_ENCODING_ERROR				 104
+#define BN_R_EXPAND_ON_STATIC_BIGNUM_DATA		 105
+#define BN_R_INPUT_NOT_REDUCED				 110
+#define BN_R_INVALID_LENGTH				 106
+#define BN_R_INVALID_RANGE				 115
+#define BN_R_NOT_A_SQUARE				 111
+#define BN_R_NOT_INITIALIZED				 107
+#define BN_R_NO_INVERSE					 108
+#define BN_R_NO_SOLUTION				 116
+#define BN_R_P_IS_NOT_PRIME				 112
+#define BN_R_TOO_MANY_ITERATIONS			 113
+#define BN_R_TOO_MANY_TEMPORARY_VARIABLES		 109
+
+#ifdef  __cplusplus
+}
+#endif
+#endif