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			539 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			539 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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|  * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
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|  *
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|  * Licensed under the OpenSSL license (the "License").  You may not use
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|  * this file except in compliance with the License.  You can obtain a copy
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|  * in the file LICENSE in the source distribution or at
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|  * https://www.openssl.org/source/license.html
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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_STDIO
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| #  include <stdio.h>
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| # endif
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| # include <openssl/opensslconf.h>
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| # include <openssl/ossl_typ.h>
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| # include <openssl/crypto.h>
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| # include <openssl/bnerr.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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|  * 64-bit processor with LP64 ABI
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|  */
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| # ifdef SIXTY_FOUR_BIT_LONG
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| #  define BN_ULONG        unsigned long
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| #  define BN_BYTES        8
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| # endif
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| 
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| /*
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|  * 64-bit processor other than LP64 ABI
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|  */
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| # ifdef SIXTY_FOUR_BIT
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| #  define BN_ULONG        unsigned long long
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| #  define BN_BYTES        8
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| # endif
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| 
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| # ifdef THIRTY_TWO_BIT
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| #  define BN_ULONG        unsigned int
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| #  define BN_BYTES        4
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| # endif
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| 
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| # define BN_BITS2       (BN_BYTES * 8)
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| # define BN_BITS        (BN_BITS2 * 2)
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| # define BN_TBIT        ((BN_ULONG)1 << (BN_BITS2 - 1))
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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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| # define BN_FLG_SECURE           0x08
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| 
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| # if OPENSSL_API_COMPAT < 0x00908000L
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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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| #  define BN_FLG_FREE            0x8000 /* used for debugging */
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| # endif
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| 
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| void BN_set_flags(BIGNUM *b, int n);
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| int BN_get_flags(const BIGNUM *b, int n);
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| 
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| /* Values for |top| in BN_rand() */
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| #define BN_RAND_TOP_ANY    -1
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| #define BN_RAND_TOP_ONE     0
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| #define BN_RAND_TOP_TWO     1
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| 
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| /* Values for |bottom| in BN_rand() */
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| #define BN_RAND_BOTTOM_ANY  0
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| #define BN_RAND_BOTTOM_ODD  1
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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 be used in parallel!). Also only for *read only* use. The
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|  * value |dest| should be a newly allocated BIGNUM obtained via BN_new() that
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|  * has not been otherwise initialised or used.
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|  */
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| void BN_with_flags(BIGNUM *dest, const BIGNUM *b, int flags);
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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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| 
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| BN_GENCB *BN_GENCB_new(void);
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| void BN_GENCB_free(BN_GENCB *cb);
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| 
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| /* Populate a BN_GENCB structure with an "old"-style callback */
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| void BN_GENCB_set_old(BN_GENCB *gencb, void (*callback) (int, int, void *),
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|                       void *cb_arg);
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| 
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| /* Populate a BN_GENCB structure with a "new"-style callback */
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| void BN_GENCB_set(BN_GENCB *gencb, int (*callback) (int, int, BN_GENCB *),
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|                   void *cb_arg);
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| 
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| void *BN_GENCB_get_arg(BN_GENCB *cb);
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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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|  * BN_prime_checks_for_size() returns the number of Miller-Rabin iterations
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|  * that will be done for checking that a random number is probably prime. The
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|  * error rate for accepting a composite number as prime depends on the size of
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|  * the prime |b|. The error rates used are for calculating an RSA key with 2 primes,
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|  * and so the level is what you would expect for a key of double the size of the
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|  * prime.
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|  *
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|  * This table is generated using the algorithm of FIPS PUB 186-4
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|  * Digital Signature Standard (DSS), section F.1, page 117.
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|  * (https://dx.doi.org/10.6028/NIST.FIPS.186-4)
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|  *
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|  * The following magma script was used to generate the output:
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|  * securitybits:=125;
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|  * k:=1024;
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|  * for t:=1 to 65 do
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|  *   for M:=3 to Floor(2*Sqrt(k-1)-1) do
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|  *     S:=0;
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|  *     // Sum over m
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|  *     for m:=3 to M do
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|  *       s:=0;
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|  *       // Sum over j
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|  *       for j:=2 to m do
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|  *         s+:=(RealField(32)!2)^-(j+(k-1)/j);
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|  *       end for;
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|  *       S+:=2^(m-(m-1)*t)*s;
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|  *     end for;
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|  *     A:=2^(k-2-M*t);
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|  *     B:=8*(Pi(RealField(32))^2-6)/3*2^(k-2)*S;
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|  *     pkt:=2.00743*Log(2)*k*2^-k*(A+B);
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|  *     seclevel:=Floor(-Log(2,pkt));
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|  *     if seclevel ge securitybits then
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|  *       printf "k: %5o, security: %o bits  (t: %o, M: %o)\n",k,seclevel,t,M;
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|  *       break;
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|  *     end if;
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|  *   end for;
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|  *   if seclevel ge securitybits then break; end if;
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|  * end for;
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|  *
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|  * It can be run online at:
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|  * http://magma.maths.usyd.edu.au/calc
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|  *
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|  * And will output:
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|  * k:  1024, security: 129 bits  (t: 6, M: 23)
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|  *
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|  * k is the number of bits of the prime, securitybits is the level we want to
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|  * reach.
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|  *
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|  * prime length | RSA key size | # MR tests | security level
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|  * -------------+--------------|------------+---------------
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|  *  (b) >= 6394 |     >= 12788 |          3 |        256 bit
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|  *  (b) >= 3747 |     >=  7494 |          3 |        192 bit
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|  *  (b) >= 1345 |     >=  2690 |          4 |        128 bit
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|  *  (b) >= 1080 |     >=  2160 |          5 |        128 bit
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|  *  (b) >=  852 |     >=  1704 |          5 |        112 bit
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|  *  (b) >=  476 |     >=   952 |          5 |         80 bit
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|  *  (b) >=  400 |     >=   800 |          6 |         80 bit
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|  *  (b) >=  347 |     >=   694 |          7 |         80 bit
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|  *  (b) >=  308 |     >=   616 |          8 |         80 bit
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|  *  (b) >=   55 |     >=   110 |         27 |         64 bit
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|  *  (b) >=    6 |     >=    12 |         34 |         64 bit
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|  */
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| 
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| # define BN_prime_checks_for_size(b) ((b) >= 3747 ?  3 : \
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|                                 (b) >=  1345 ?  4 : \
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|                                 (b) >=  476 ?  5 : \
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|                                 (b) >=  400 ?  6 : \
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|                                 (b) >=  347 ?  7 : \
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|                                 (b) >=  308 ?  8 : \
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|                                 (b) >=  55  ? 27 : \
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|                                 /* b >= 6 */ 34)
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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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| int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w);
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| int BN_is_zero(const BIGNUM *a);
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| int BN_is_one(const BIGNUM *a);
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| int BN_is_word(const BIGNUM *a, const BN_ULONG w);
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| int BN_is_odd(const BIGNUM *a);
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| 
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| # define BN_one(a)       (BN_set_word((a),1))
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| 
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| void BN_zero_ex(BIGNUM *a);
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| 
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| # if OPENSSL_API_COMPAT >= 0x00908000L
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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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| BN_CTX *BN_CTX_secure_new(void);
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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_priv_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_priv_rand_range(BIGNUM *rnd, const BIGNUM *range);
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| int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
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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 l);
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| int BN_security_bits(int L, int N);
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| BIGNUM *BN_new(void);
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| BIGNUM *BN_secure_new(void);
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| void BN_clear_free(BIGNUM *a);
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| BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
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| void BN_swap(BIGNUM *a, BIGNUM *b);
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| BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret);
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| int BN_bn2bin(const BIGNUM *a, unsigned char *to);
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| int BN_bn2binpad(const BIGNUM *a, unsigned char *to, int tolen);
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| BIGNUM *BN_lebin2bn(const unsigned char *s, int len, BIGNUM *ret);
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| int BN_bn2lebinpad(const BIGNUM *a, unsigned char *to, int tolen);
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| BIGNUM *BN_mpi2bn(const unsigned char *s, int len, BIGNUM *ret);
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| int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
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| int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
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| int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
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| int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
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| int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
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| int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
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| int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
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| /** BN_set_negative sets sign of a BIGNUM
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|  * \param  b  pointer to the BIGNUM object
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|  * \param  n  0 if the BIGNUM b should be positive and a value != 0 otherwise
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|  */
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| void BN_set_negative(BIGNUM *b, int n);
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| /** BN_is_negative returns 1 if the BIGNUM is negative
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|  * \param  b  pointer to the BIGNUM object
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|  * \return 1 if a < 0 and 0 otherwise
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|  */
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| int BN_is_negative(const BIGNUM *b);
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| 
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| int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
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|            BN_CTX *ctx);
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| # define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
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| int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
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| int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
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|                BN_CTX *ctx);
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| int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
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|                      const BIGNUM *m);
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| int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
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|                BN_CTX *ctx);
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| int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
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|                      const BIGNUM *m);
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| int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
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|                BN_CTX *ctx);
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| int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
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| int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
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| int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
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| int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m,
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|                   BN_CTX *ctx);
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| int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
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| 
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| BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
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| BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
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| int BN_mul_word(BIGNUM *a, BN_ULONG w);
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| int BN_add_word(BIGNUM *a, BN_ULONG w);
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| int BN_sub_word(BIGNUM *a, BN_ULONG w);
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| int BN_set_word(BIGNUM *a, BN_ULONG w);
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| BN_ULONG BN_get_word(const BIGNUM *a);
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| 
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| int BN_cmp(const BIGNUM *a, const BIGNUM *b);
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| void BN_free(BIGNUM *a);
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| int BN_is_bit_set(const BIGNUM *a, int n);
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| int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
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| int BN_lshift1(BIGNUM *r, const BIGNUM *a);
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| int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
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| 
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| int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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|                const BIGNUM *m, BN_CTX *ctx);
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| int BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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|                     const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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| int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
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|                               const BIGNUM *m, BN_CTX *ctx,
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|                               BN_MONT_CTX *in_mont);
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| int BN_mod_exp_mont_word(BIGNUM *r, BN_ULONG a, const BIGNUM *p,
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|                          const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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| int BN_mod_exp2_mont(BIGNUM *r, const BIGNUM *a1, const BIGNUM *p1,
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|                      const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,
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|                      BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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| int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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|                       const BIGNUM *m, BN_CTX *ctx);
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| 
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| int BN_mask_bits(BIGNUM *a, int n);
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| # ifndef OPENSSL_NO_STDIO
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| int BN_print_fp(FILE *fp, const BIGNUM *a);
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| # endif
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| int BN_print(BIO *bio, const BIGNUM *a);
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| int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx);
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| int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
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| int BN_rshift1(BIGNUM *r, const BIGNUM *a);
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| void BN_clear(BIGNUM *a);
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| BIGNUM *BN_dup(const BIGNUM *a);
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| int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
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| int BN_set_bit(BIGNUM *a, int n);
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| int BN_clear_bit(BIGNUM *a, int n);
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| char *BN_bn2hex(const BIGNUM *a);
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| char *BN_bn2dec(const BIGNUM *a);
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| int BN_hex2bn(BIGNUM **a, const char *str);
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| int BN_dec2bn(BIGNUM **a, const char *str);
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| int BN_asc2bn(BIGNUM **a, const char *str);
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| int BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
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| int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); /* returns
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|                                                                   * -2 for
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|                                                                   * error */
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| BIGNUM *BN_mod_inverse(BIGNUM *ret,
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|                        const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
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| BIGNUM *BN_mod_sqrt(BIGNUM *ret,
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|                     const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
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| 
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| void BN_consttime_swap(BN_ULONG swap, BIGNUM *a, BIGNUM *b, int nwords);
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| 
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| /* Deprecated versions */
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| DEPRECATEDIN_0_9_8(BIGNUM *BN_generate_prime(BIGNUM *ret, int bits, int safe,
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|                                              const BIGNUM *add,
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|                                              const BIGNUM *rem,
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|                                              void (*callback) (int, int,
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|                                                                void *),
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|                                              void *cb_arg))
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| DEPRECATEDIN_0_9_8(int
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|                    BN_is_prime(const BIGNUM *p, int nchecks,
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|                                void (*callback) (int, int, void *),
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|                                BN_CTX *ctx, void *cb_arg))
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| DEPRECATEDIN_0_9_8(int
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|                    BN_is_prime_fasttest(const BIGNUM *p, int nchecks,
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|                                         void (*callback) (int, int, void *),
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|                                         BN_CTX *ctx, void *cb_arg,
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|                                         int do_trial_division))
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| 
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| /* Newer versions */
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| int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe, const BIGNUM *add,
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|                          const BIGNUM *rem, BN_GENCB *cb);
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| int BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, BN_GENCB *cb);
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| int BN_is_prime_fasttest_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx,
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|                             int do_trial_division, BN_GENCB *cb);
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| 
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| int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx);
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| 
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| int BN_X931_derive_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
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|                             const BIGNUM *Xp, const BIGNUM *Xp1,
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|                             const BIGNUM *Xp2, const BIGNUM *e, BN_CTX *ctx,
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|                             BN_GENCB *cb);
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| int BN_X931_generate_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2, BIGNUM *Xp1,
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|                               BIGNUM *Xp2, const BIGNUM *Xp, const BIGNUM *e,
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|                               BN_CTX *ctx, BN_GENCB *cb);
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| 
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| BN_MONT_CTX *BN_MONT_CTX_new(void);
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| int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
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|                           BN_MONT_CTX *mont, BN_CTX *ctx);
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| int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
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|                      BN_CTX *ctx);
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| int BN_from_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
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|                        BN_CTX *ctx);
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| void BN_MONT_CTX_free(BN_MONT_CTX *mont);
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| int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx);
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| BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, BN_MONT_CTX *from);
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| BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock,
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|                                     const BIGNUM *mod, BN_CTX *ctx);
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| 
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| /* BN_BLINDING flags */
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| # define BN_BLINDING_NO_UPDATE   0x00000001
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| # define BN_BLINDING_NO_RECREATE 0x00000002
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| 
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| BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod);
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| 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 *);
 | |
| 
 | |
| int BN_BLINDING_is_current_thread(BN_BLINDING *b);
 | |
| void BN_BLINDING_set_current_thread(BN_BLINDING *b);
 | |
| int BN_BLINDING_lock(BN_BLINDING *b);
 | |
| int BN_BLINDING_unlock(BN_BLINDING *b);
 | |
| 
 | |
| 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);
 | |
| 
 | |
| DEPRECATEDIN_0_9_8(void BN_set_params(int mul, int high, int low, int mont))
 | |
| DEPRECATEDIN_0_9_8(int BN_get_params(int which)) /* 0, mul, 1 high, 2 low, 3
 | |
|                                                   * mont */
 | |
| 
 | |
| 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);
 | |
| 
 | |
| int (*BN_nist_mod_func(const BIGNUM *p)) (BIGNUM *r, const BIGNUM *a,
 | |
|                                           const BIGNUM *field, BN_CTX *ctx);
 | |
| 
 | |
| int BN_generate_dsa_nonce(BIGNUM *out, const BIGNUM *range,
 | |
|                           const BIGNUM *priv, const unsigned char *message,
 | |
|                           size_t message_len, BN_CTX *ctx);
 | |
| 
 | |
| /* Primes from RFC 2409 */
 | |
| BIGNUM *BN_get_rfc2409_prime_768(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc2409_prime_1024(BIGNUM *bn);
 | |
| 
 | |
| /* Primes from RFC 3526 */
 | |
| BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *bn);
 | |
| BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *bn);
 | |
| 
 | |
| # if OPENSSL_API_COMPAT < 0x10100000L
 | |
| #  define get_rfc2409_prime_768 BN_get_rfc2409_prime_768
 | |
| #  define get_rfc2409_prime_1024 BN_get_rfc2409_prime_1024
 | |
| #  define get_rfc3526_prime_1536 BN_get_rfc3526_prime_1536
 | |
| #  define get_rfc3526_prime_2048 BN_get_rfc3526_prime_2048
 | |
| #  define get_rfc3526_prime_3072 BN_get_rfc3526_prime_3072
 | |
| #  define get_rfc3526_prime_4096 BN_get_rfc3526_prime_4096
 | |
| #  define get_rfc3526_prime_6144 BN_get_rfc3526_prime_6144
 | |
| #  define get_rfc3526_prime_8192 BN_get_rfc3526_prime_8192
 | |
| # endif
 | |
| 
 | |
| int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom);
 | |
| 
 | |
| 
 | |
| # ifdef  __cplusplus
 | |
| }
 | |
| # endif
 | |
| #endif
 |