940 lines
		
	
	
		
			40 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			940 lines
		
	
	
		
			40 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* crypto/bn/bn.h */
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| /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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|  * All rights reserved.
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|  *
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|  * This package is an SSL implementation written
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|  * by Eric Young (eay@cryptsoft.com).
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|  * The implementation was written so as to conform with Netscapes SSL.
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|  *
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|  * This library is free for commercial and non-commercial use as long as
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|  * the following conditions are aheared to.  The following conditions
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|  * apply to all code found in this distribution, be it the RC4, RSA,
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|  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
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|  * included with this distribution is covered by the same copyright terms
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|  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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|  *
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|  * Copyright remains Eric Young's, and as such any Copyright notices in
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|  * the code are not to be removed.
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|  * If this package is used in a product, Eric Young should be given attribution
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|  * as the author of the parts of the library used.
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|  * This can be in the form of a textual message at program startup or
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|  * in documentation (online or textual) provided with the package.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions
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|  * are met:
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|  * 1. Redistributions of source code must retain the copyright
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|  *    notice, this list of conditions and the following disclaimer.
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|  * 2. Redistributions in binary form must reproduce the above copyright
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|  *    notice, this list of conditions and the following disclaimer in the
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|  *    documentation and/or other materials provided with the distribution.
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|  * 3. All advertising materials mentioning features or use of this software
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|  *    must display the following acknowledgement:
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|  *    "This product includes cryptographic software written by
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|  *     Eric Young (eay@cryptsoft.com)"
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|  *    The word 'cryptographic' can be left out if the rouines from the library
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|  *    being used are not cryptographic related :-).
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|  * 4. If you include any Windows specific code (or a derivative thereof) from
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|  *    the apps directory (application code) you must include an acknowledgement:
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|  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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|  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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|  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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|  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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|  * SUCH DAMAGE.
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|  *
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|  * The licence and distribution terms for any publically available version or
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|  * derivative of this code cannot be changed.  i.e. this code cannot simply be
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|  * copied and put under another distribution licence
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|  * [including the GNU Public Licence.]
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|  */
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| /* ====================================================================
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|  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions
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|  * are met:
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|  *
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|  * 1. Redistributions of source code must retain the above copyright
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|  *    notice, this list of conditions and the following disclaimer.
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|  *
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|  * 2. Redistributions in binary form must reproduce the above copyright
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|  *    notice, this list of conditions and the following disclaimer in
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|  *    the documentation and/or other materials provided with the
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|  *    distribution.
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|  *
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|  * 3. All advertising materials mentioning features or use of this
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|  *    software must display the following acknowledgment:
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|  *    "This product includes software developed by the OpenSSL Project
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|  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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|  *
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|  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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|  *    endorse or promote products derived from this software without
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|  *    prior written permission. For written permission, please contact
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|  *    openssl-core@openssl.org.
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|  *
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|  * 5. Products derived from this software may not be called "OpenSSL"
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|  *    nor may "OpenSSL" appear in their names without prior written
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|  *    permission of the OpenSSL Project.
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|  *
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|  * 6. Redistributions of any form whatsoever must retain the following
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|  *    acknowledgment:
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|  *    "This product includes software developed by the OpenSSL Project
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|  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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|  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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|  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
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|  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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|  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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|  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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|  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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|  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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|  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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|  * OF THE POSSIBILITY OF SUCH DAMAGE.
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|  * ====================================================================
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|  *
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|  * This product includes cryptographic software written by Eric Young
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|  * (eay@cryptsoft.com).  This product includes software written by Tim
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|  * Hudson (tjh@cryptsoft.com).
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|  *
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|  */
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| /* ====================================================================
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|  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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|  *
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|  * Portions of the attached software ("Contribution") are developed by
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|  * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
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|  *
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|  * The Contribution is licensed pursuant to the Eric Young open source
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|  * license provided above.
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|  *
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|  * The binary polynomial arithmetic software is originally written by
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|  * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
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|  *
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|  */
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| 
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| #ifndef HEADER_BN_H
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| # define HEADER_BN_H
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| 
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| # include <openssl/e_os2.h>
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| # ifndef OPENSSL_NO_FP_API
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| #  include <stdio.h>            /* FILE */
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| # endif
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| # include <openssl/ossl_typ.h>
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| # include <openssl/crypto.h>
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| 
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| #ifdef  __cplusplus
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| extern "C" {
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| #endif
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| 
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| /*
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|  * These preprocessor symbols control various aspects of the bignum headers
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|  * and library code. They're not defined by any "normal" configuration, as
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|  * they are intended for development and testing purposes. NB: defining all
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|  * three can be useful for debugging application code as well as openssl
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|  * itself. BN_DEBUG - turn on various debugging alterations to the bignum
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|  * code BN_DEBUG_RAND - uses random poisoning of unused words to trip up
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|  * mismanagement of bignum internals. You must also define BN_DEBUG.
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|  */
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| /* #define BN_DEBUG */
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| /* #define BN_DEBUG_RAND */
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| 
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| # ifndef OPENSSL_SMALL_FOOTPRINT
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| #  define BN_MUL_COMBA
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| #  define BN_SQR_COMBA
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| #  define BN_RECURSION
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| # endif
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| 
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| /*
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|  * This next option uses the C libraries (2 word)/(1 word) function. If it is
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|  * not defined, I use my C version (which is slower). The reason for this
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|  * flag is that when the particular C compiler library routine is used, and
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|  * the library is linked with a different compiler, the library is missing.
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|  * This mostly happens when the library is built with gcc and then linked
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|  * using normal cc.  This would be a common occurrence because gcc normally
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|  * produces code that is 2 times faster than system compilers for the big
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|  * number stuff. For machines with only one compiler (or shared libraries),
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|  * this should be on.  Again this in only really a problem on machines using
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|  * "long long's", are 32bit, and are not using my assembler code.
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|  */
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| # if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || \
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|     defined(OPENSSL_SYS_WIN32) || defined(linux)
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| #  ifndef BN_DIV2W
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| #   define BN_DIV2W
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| #  endif
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| # endif
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| 
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| /*
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|  * assuming long is 64bit - this is the DEC Alpha unsigned long long is only
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|  * 64 bits :-(, don't define BN_LLONG for the DEC Alpha
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|  */
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| # ifdef SIXTY_FOUR_BIT_LONG
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| #  define BN_ULLONG       unsigned long long
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| #  define BN_ULONG        unsigned long
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| #  define BN_LONG         long
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| #  define BN_BITS         128
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| #  define BN_BYTES        8
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| #  define BN_BITS2        64
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| #  define BN_BITS4        32
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| #  define BN_MASK         (0xffffffffffffffffffffffffffffffffLL)
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| #  define BN_MASK2        (0xffffffffffffffffL)
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| #  define BN_MASK2l       (0xffffffffL)
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| #  define BN_MASK2h       (0xffffffff00000000L)
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| #  define BN_MASK2h1      (0xffffffff80000000L)
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| #  define BN_TBIT         (0x8000000000000000L)
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| #  define BN_DEC_CONV     (10000000000000000000UL)
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| #  define BN_DEC_FMT1     "%lu"
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| #  define BN_DEC_FMT2     "%019lu"
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| #  define BN_DEC_NUM      19
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| #  define BN_HEX_FMT1     "%lX"
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| #  define BN_HEX_FMT2     "%016lX"
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| # endif
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| 
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| /*
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|  * This is where the long long data type is 64 bits, but long is 32. For
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|  * machines where there are 64bit registers, this is the mode to use. IRIX,
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|  * on R4000 and above should use this mode, along with the relevant assembler
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|  * code :-).  Do NOT define BN_LLONG.
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|  */
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| # ifdef SIXTY_FOUR_BIT
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| #  undef BN_LLONG
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| #  undef BN_ULLONG
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| #  define BN_ULONG        unsigned long long
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| #  define BN_LONG         long long
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| #  define BN_BITS         128
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| #  define BN_BYTES        8
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| #  define BN_BITS2        64
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| #  define BN_BITS4        32
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| #  define BN_MASK2        (0xffffffffffffffffLL)
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| #  define BN_MASK2l       (0xffffffffL)
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| #  define BN_MASK2h       (0xffffffff00000000LL)
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| #  define BN_MASK2h1      (0xffffffff80000000LL)
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| #  define BN_TBIT         (0x8000000000000000LL)
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| #  define BN_DEC_CONV     (10000000000000000000ULL)
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| #  define BN_DEC_FMT1     "%llu"
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| #  define BN_DEC_FMT2     "%019llu"
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| #  define BN_DEC_NUM      19
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| #  define BN_HEX_FMT1     "%llX"
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| #  define BN_HEX_FMT2     "%016llX"
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| # endif
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| 
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| # ifdef THIRTY_TWO_BIT
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| #  ifdef BN_LLONG
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| #   if defined(_WIN32) && !defined(__GNUC__)
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| #    define BN_ULLONG     unsigned __int64
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| #    define BN_MASK       (0xffffffffffffffffI64)
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| #   else
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| #    define BN_ULLONG     unsigned long long
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| #    define BN_MASK       (0xffffffffffffffffLL)
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| #   endif
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| #  endif
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| #  define BN_ULONG        unsigned int
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| #  define BN_LONG         int
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| #  define BN_BITS         64
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| #  define BN_BYTES        4
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| #  define BN_BITS2        32
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| #  define BN_BITS4        16
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| #  define BN_MASK2        (0xffffffffL)
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| #  define BN_MASK2l       (0xffff)
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| #  define BN_MASK2h1      (0xffff8000L)
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| #  define BN_MASK2h       (0xffff0000L)
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| #  define BN_TBIT         (0x80000000L)
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| #  define BN_DEC_CONV     (1000000000L)
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| #  define BN_DEC_FMT1     "%u"
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| #  define BN_DEC_FMT2     "%09u"
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| #  define BN_DEC_NUM      9
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| #  define BN_HEX_FMT1     "%X"
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| #  define BN_HEX_FMT2     "%08X"
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| # endif
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| 
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| # define BN_DEFAULT_BITS 1280
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| 
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| # define BN_FLG_MALLOCED         0x01
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| # define BN_FLG_STATIC_DATA      0x02
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| 
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| /*
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|  * avoid leaking exponent information through timing,
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|  * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
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|  * BN_div() will call BN_div_no_branch,
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|  * BN_mod_inverse() will call BN_mod_inverse_no_branch.
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|  */
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| # define BN_FLG_CONSTTIME        0x04
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| 
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| # ifdef OPENSSL_NO_DEPRECATED
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| /* deprecated name for the flag */
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| #  define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME
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| /*
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|  * avoid leaking exponent information through timings
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|  * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime)
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|  */
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| # endif
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| 
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| # ifndef OPENSSL_NO_DEPRECATED
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| #  define BN_FLG_FREE             0x8000
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|                                        /* used for debuging */
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| # endif
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| # define BN_set_flags(b,n)       ((b)->flags|=(n))
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| # define BN_get_flags(b,n)       ((b)->flags&(n))
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| 
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| /*
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|  * get a clone of a BIGNUM with changed flags, for *temporary* use only (the
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|  * two BIGNUMs cannot not be used in parallel!)
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|  */
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| # define BN_with_flags(dest,b,n)  ((dest)->d=(b)->d, \
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|                                   (dest)->top=(b)->top, \
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|                                   (dest)->dmax=(b)->dmax, \
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|                                   (dest)->neg=(b)->neg, \
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|                                   (dest)->flags=(((dest)->flags & BN_FLG_MALLOCED) \
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|                                                  |  ((b)->flags & ~BN_FLG_MALLOCED) \
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|                                                  |  BN_FLG_STATIC_DATA \
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|                                                  |  (n)))
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| 
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| /* Already declared in ossl_typ.h */
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| # if 0
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| typedef struct bignum_st BIGNUM;
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| /* Used for temp variables (declaration hidden in bn_lcl.h) */
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| typedef struct bignum_ctx BN_CTX;
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| typedef struct bn_blinding_st BN_BLINDING;
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| typedef struct bn_mont_ctx_st BN_MONT_CTX;
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| typedef struct bn_recp_ctx_st BN_RECP_CTX;
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| typedef struct bn_gencb_st BN_GENCB;
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| # endif
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| 
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| struct bignum_st {
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|     BN_ULONG *d;                /* Pointer to an array of 'BN_BITS2' bit
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|                                  * chunks. */
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|     int top;                    /* Index of last used d +1. */
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|     /* The next are internal book keeping for bn_expand. */
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|     int dmax;                   /* Size of the d array. */
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|     int neg;                    /* one if the number is negative */
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|     int flags;
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| };
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| 
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| /* Used for montgomery multiplication */
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| struct bn_mont_ctx_st {
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|     int ri;                     /* number of bits in R */
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|     BIGNUM RR;                  /* used to convert to montgomery form */
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|     BIGNUM N;                   /* The modulus */
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|     BIGNUM Ni;                  /* R*(1/R mod N) - N*Ni = 1 (Ni is only
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|                                  * stored for bignum algorithm) */
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|     BN_ULONG n0[2];             /* least significant word(s) of Ni; (type
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|                                  * changed with 0.9.9, was "BN_ULONG n0;"
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|                                  * before) */
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|     int flags;
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| };
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| 
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| /*
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|  * Used for reciprocal division/mod functions It cannot be shared between
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|  * threads
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|  */
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| struct bn_recp_ctx_st {
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|     BIGNUM N;                   /* the divisor */
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|     BIGNUM Nr;                  /* the reciprocal */
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|     int num_bits;
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|     int shift;
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|     int flags;
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| };
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| 
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| /* Used for slow "generation" functions. */
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| struct bn_gencb_st {
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|     unsigned int ver;           /* To handle binary (in)compatibility */
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|     void *arg;                  /* callback-specific data */
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|     union {
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|         /* if(ver==1) - handles old style callbacks */
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|         void (*cb_1) (int, int, void *);
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|         /* if(ver==2) - new callback style */
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|         int (*cb_2) (int, int, BN_GENCB *);
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|     } cb;
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| };
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| /* Wrapper function to make using BN_GENCB easier,  */
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| int BN_GENCB_call(BN_GENCB *cb, int a, int b);
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| /* Macro to populate a BN_GENCB structure with an "old"-style callback */
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| # define BN_GENCB_set_old(gencb, callback, cb_arg) { \
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|                 BN_GENCB *tmp_gencb = (gencb); \
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|                 tmp_gencb->ver = 1; \
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|                 tmp_gencb->arg = (cb_arg); \
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|                 tmp_gencb->cb.cb_1 = (callback); }
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| /* Macro to populate a BN_GENCB structure with a "new"-style callback */
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| # define BN_GENCB_set(gencb, callback, cb_arg) { \
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|                 BN_GENCB *tmp_gencb = (gencb); \
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|                 tmp_gencb->ver = 2; \
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|                 tmp_gencb->arg = (cb_arg); \
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|                 tmp_gencb->cb.cb_2 = (callback); }
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| 
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| # define BN_prime_checks 0      /* default: select number of iterations based
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|                                  * on the size of the number */
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| 
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| /*
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|  * number of Miller-Rabin iterations for an error rate of less than 2^-80 for
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|  * random 'b'-bit input, b >= 100 (taken from table 4.4 in the Handbook of
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|  * Applied Cryptography [Menezes, van Oorschot, Vanstone; CRC Press 1996];
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|  * original paper: Damgaard, Landrock, Pomerance: Average case error
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|  * estimates for the strong probable prime test. -- Math. Comp. 61 (1993)
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|  * 177-194)
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|  */
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| # define BN_prime_checks_for_size(b) ((b) >= 1300 ?  2 : \
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|                                 (b) >=  850 ?  3 : \
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|                                 (b) >=  650 ?  4 : \
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|                                 (b) >=  550 ?  5 : \
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|                                 (b) >=  450 ?  6 : \
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|                                 (b) >=  400 ?  7 : \
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|                                 (b) >=  350 ?  8 : \
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|                                 (b) >=  300 ?  9 : \
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|                                 (b) >=  250 ? 12 : \
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|                                 (b) >=  200 ? 15 : \
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|                                 (b) >=  150 ? 18 : \
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|                                 /* b >= 100 */ 27)
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| 
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| # define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
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| 
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| /* Note that BN_abs_is_word didn't work reliably for w == 0 until 0.9.8 */
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| # define BN_abs_is_word(a,w) ((((a)->top == 1) && ((a)->d[0] == (BN_ULONG)(w))) || \
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|                                 (((w) == 0) && ((a)->top == 0)))
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| # define BN_is_zero(a)       ((a)->top == 0)
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| # define BN_is_one(a)        (BN_abs_is_word((a),1) && !(a)->neg)
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| # define BN_is_word(a,w)     (BN_abs_is_word((a),(w)) && (!(w) || !(a)->neg))
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| # define BN_is_odd(a)        (((a)->top > 0) && ((a)->d[0] & 1))
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| 
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| # define BN_one(a)       (BN_set_word((a),1))
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| # define BN_zero_ex(a) \
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|         do { \
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|                 BIGNUM *_tmp_bn = (a); \
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|                 _tmp_bn->top = 0; \
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|                 _tmp_bn->neg = 0; \
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|         } while(0)
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| # ifdef OPENSSL_NO_DEPRECATED
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| #  define BN_zero(a)      BN_zero_ex(a)
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| # else
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| #  define BN_zero(a)      (BN_set_word((a),0))
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| # endif
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| 
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| const BIGNUM *BN_value_one(void);
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| char *BN_options(void);
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| BN_CTX *BN_CTX_new(void);
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| # ifndef OPENSSL_NO_DEPRECATED
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| void BN_CTX_init(BN_CTX *c);
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| # endif
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| void BN_CTX_free(BN_CTX *c);
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| void BN_CTX_start(BN_CTX *ctx);
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| BIGNUM *BN_CTX_get(BN_CTX *ctx);
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| void BN_CTX_end(BN_CTX *ctx);
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| int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
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| int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
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| int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
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| int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
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| int BN_num_bits(const BIGNUM *a);
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| int BN_num_bits_word(BN_ULONG);
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| BIGNUM *BN_new(void);
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| void BN_init(BIGNUM *);
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| void BN_clear_free(BIGNUM *a);
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| 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)
 | |
| 
 | |
| 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))
 | |
| 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);
 | |
| 
 | |
| 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);
 | |
| 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);
 | |
| # ifndef OPENSSL_NO_FP_API
 | |
| int BN_print_fp(FILE *fp, const BIGNUM *a);
 | |
| # endif
 | |
| # ifdef HEADER_BIO_H
 | |
| int BN_print(BIO *fp, const BIGNUM *a);
 | |
| # else
 | |
| int BN_print(void *fp, const BIGNUM *a);
 | |
| # endif
 | |
| 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);
 | |
| int BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 | |
| int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); /* returns
 | |
|                                                                   * -2 for
 | |
|                                                                   * error */
 | |
| BIGNUM *BN_mod_inverse(BIGNUM *ret,
 | |
|                        const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
 | |
| 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.
 | |
|  */
 | |
| 
 | |
| /*
 | |
|  * r = a + b
 | |
|  */
 | |
| int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
 | |
| #  define BN_GF2m_sub(r, a, b) BN_GF2m_add(r, a, b)
 | |
| /*
 | |
|  * r=a mod p
 | |
|  */
 | |
| int BN_GF2m_mod(BIGNUM *r, const BIGNUM *a, const BIGNUM *p);
 | |
| /* r = (a * b) mod p */
 | |
| int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
 | |
|                     const BIGNUM *p, BN_CTX *ctx);
 | |
| /* r = (a * a) mod p */
 | |
| int BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
 | |
| /* r = (1 / b) mod p */
 | |
| int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *b, const BIGNUM *p, BN_CTX *ctx);
 | |
| /* r = (a / 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 = sqrt(a) mod p */
 | |
| int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 | |
|                      BN_CTX *ctx);
 | |
| /* r^2 + r = a mod p */
 | |
| int BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 | |
|                            BN_CTX *ctx);
 | |
| #  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.
 | |
|  */
 | |
| /* r = a mod p */
 | |
| int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[]);
 | |
| /* r = (a * b) mod p */
 | |
| int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
 | |
|                         const int p[], BN_CTX *ctx);
 | |
| /* r = (a * a) mod p */
 | |
| int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
 | |
|                         BN_CTX *ctx);
 | |
| /* r = (1 / b) mod p */
 | |
| int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *b, const int p[],
 | |
|                         BN_CTX *ctx);
 | |
| /* r = (a / 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 = sqrt(a) mod p */
 | |
| int BN_GF2m_mod_sqrt_arr(BIGNUM *r, const BIGNUM *a,
 | |
|                          const int p[], BN_CTX *ctx);
 | |
| /* r^2 + r = a mod p */
 | |
| int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a,
 | |
|                                const int p[], BN_CTX *ctx);
 | |
| 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);
 | |
| 
 | |
| /* library internal functions */
 | |
| 
 | |
| # define bn_expand(a,bits) ((((((bits+BN_BITS2-1))/BN_BITS2)) <= (a)->dmax)?\
 | |
|         (a):bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2))
 | |
| # define bn_wexpand(a,words) (((words) <= (a)->dmax)?(a):bn_expand2((a),(words)))
 | |
| BIGNUM *bn_expand2(BIGNUM *a, int words);
 | |
| # ifndef OPENSSL_NO_DEPRECATED
 | |
| BIGNUM *bn_dup_expand(const BIGNUM *a, int words); /* unused */
 | |
| # endif
 | |
| 
 | |
| /*-
 | |
|  * Bignum consistency macros
 | |
|  * There is one "API" macro, bn_fix_top(), for stripping leading zeroes from
 | |
|  * bignum data after direct manipulations on the data. There is also an
 | |
|  * "internal" macro, bn_check_top(), for verifying that there are no leading
 | |
|  * zeroes. Unfortunately, some auditing is required due to the fact that
 | |
|  * bn_fix_top() has become an overabused duct-tape because bignum data is
 | |
|  * occasionally passed around in an inconsistent state. So the following
 | |
|  * changes have been made to sort this out;
 | |
|  * - bn_fix_top()s implementation has been moved to bn_correct_top()
 | |
|  * - if BN_DEBUG isn't defined, bn_fix_top() maps to bn_correct_top(), and
 | |
|  *   bn_check_top() is as before.
 | |
|  * - if BN_DEBUG *is* defined;
 | |
|  *   - bn_check_top() tries to pollute unused words even if the bignum 'top' is
 | |
|  *     consistent. (ed: only if BN_DEBUG_RAND is defined)
 | |
|  *   - bn_fix_top() maps to bn_check_top() rather than "fixing" anything.
 | |
|  * The idea is to have debug builds flag up inconsistent bignums when they
 | |
|  * occur. If that occurs in a bn_fix_top(), we examine the code in question; if
 | |
|  * the use of bn_fix_top() was appropriate (ie. it follows directly after code
 | |
|  * that manipulates the bignum) it is converted to bn_correct_top(), and if it
 | |
|  * was not appropriate, we convert it permanently to bn_check_top() and track
 | |
|  * down the cause of the bug. Eventually, no internal code should be using the
 | |
|  * bn_fix_top() macro. External applications and libraries should try this with
 | |
|  * their own code too, both in terms of building against the openssl headers
 | |
|  * with BN_DEBUG defined *and* linking with a version of OpenSSL built with it
 | |
|  * defined. This not only improves external code, it provides more test
 | |
|  * coverage for openssl's own code.
 | |
|  */
 | |
| 
 | |
| # ifdef BN_DEBUG
 | |
| 
 | |
| /* We only need assert() when debugging */
 | |
| #  include <assert.h>
 | |
| 
 | |
| #  ifdef BN_DEBUG_RAND
 | |
| /* To avoid "make update" cvs wars due to BN_DEBUG, use some tricks */
 | |
| #   ifndef RAND_pseudo_bytes
 | |
| int RAND_pseudo_bytes(unsigned char *buf, int num);
 | |
| #    define BN_DEBUG_TRIX
 | |
| #   endif
 | |
| #   define bn_pollute(a) \
 | |
|         do { \
 | |
|                 const BIGNUM *_bnum1 = (a); \
 | |
|                 if(_bnum1->top < _bnum1->dmax) { \
 | |
|                         unsigned char _tmp_char; \
 | |
|                         /* We cast away const without the compiler knowing, any \
 | |
|                          * *genuinely* constant variables that aren't mutable \
 | |
|                          * wouldn't be constructed with top!=dmax. */ \
 | |
|                         BN_ULONG *_not_const; \
 | |
|                         memcpy(&_not_const, &_bnum1->d, sizeof(BN_ULONG*)); \
 | |
|                         /* Debug only - safe to ignore error return */ \
 | |
|                         RAND_pseudo_bytes(&_tmp_char, 1); \
 | |
|                         memset((unsigned char *)(_not_const + _bnum1->top), _tmp_char, \
 | |
|                                 (_bnum1->dmax - _bnum1->top) * sizeof(BN_ULONG)); \
 | |
|                 } \
 | |
|         } while(0)
 | |
| #   ifdef BN_DEBUG_TRIX
 | |
| #    undef RAND_pseudo_bytes
 | |
| #   endif
 | |
| #  else
 | |
| #   define bn_pollute(a)
 | |
| #  endif
 | |
| #  define bn_check_top(a) \
 | |
|         do { \
 | |
|                 const BIGNUM *_bnum2 = (a); \
 | |
|                 if (_bnum2 != NULL) { \
 | |
|                         assert((_bnum2->top == 0) || \
 | |
|                                 (_bnum2->d[_bnum2->top - 1] != 0)); \
 | |
|                         bn_pollute(_bnum2); \
 | |
|                 } \
 | |
|         } while(0)
 | |
| 
 | |
| #  define bn_fix_top(a)           bn_check_top(a)
 | |
| 
 | |
| #  define bn_check_size(bn, bits) bn_wcheck_size(bn, ((bits+BN_BITS2-1))/BN_BITS2)
 | |
| #  define bn_wcheck_size(bn, words) \
 | |
|         do { \
 | |
|                 const BIGNUM *_bnum2 = (bn); \
 | |
|                 assert((words) <= (_bnum2)->dmax && (words) >= (_bnum2)->top); \
 | |
|                 /* avoid unused variable warning with NDEBUG */ \
 | |
|                 (void)(_bnum2); \
 | |
|         } while(0)
 | |
| 
 | |
| # else                          /* !BN_DEBUG */
 | |
| 
 | |
| #  define bn_pollute(a)
 | |
| #  define bn_check_top(a)
 | |
| #  define bn_fix_top(a)           bn_correct_top(a)
 | |
| #  define bn_check_size(bn, bits)
 | |
| #  define bn_wcheck_size(bn, words)
 | |
| 
 | |
| # endif
 | |
| 
 | |
| # define bn_correct_top(a) \
 | |
|         { \
 | |
|         BN_ULONG *ftl; \
 | |
|         int tmp_top = (a)->top; \
 | |
|         if (tmp_top > 0) \
 | |
|                 { \
 | |
|                 for (ftl= &((a)->d[tmp_top-1]); tmp_top > 0; tmp_top--) \
 | |
|                         if (*(ftl--)) break; \
 | |
|                 (a)->top = tmp_top; \
 | |
|                 } \
 | |
|         bn_pollute(a); \
 | |
|         }
 | |
| 
 | |
| BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num,
 | |
|                           BN_ULONG w);
 | |
| BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
 | |
| void bn_sqr_words(BN_ULONG *rp, const BN_ULONG *ap, int num);
 | |
| BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d);
 | |
| BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
 | |
|                       int num);
 | |
| BN_ULONG bn_sub_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
 | |
|                       int num);
 | |
| 
 | |
| /* 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);
 | |
| 
 | |
| int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom);
 | |
| 
 | |
| /* 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_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_LSHIFT                                   145
 | |
| # 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_RSHIFT                                   146
 | |
| # 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                              118
 | |
| # 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_INVALID_SHIFT                               119
 | |
| # 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
 | 
