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1/* $OpenBSD: bn.h,v 1.80 2025/03/09 15:22:40 tb Exp $ */
2/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111/* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 *
114 * Portions of the attached software ("Contribution") are developed by
115 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
116 *
117 * The Contribution is licensed pursuant to the Eric Young open source
118 * license provided above.
119 *
120 * The binary polynomial arithmetic software is originally written by
121 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
122 *
123 */
124
125#ifndef HEADER_BN_H
126#define HEADER_BN_H
127
128#include <stdio.h>
129#include <stdlib.h>
130
131#include <openssl/opensslconf.h>
132
133#include <openssl/ossl_typ.h>
134#include <openssl/crypto.h>
135#include <openssl/bio.h>
136
137#ifdef __cplusplus
138extern "C" {
139#endif
140
141/* This next option uses the C libraries (2 word)/(1 word) function.
142 * If it is not defined, I use my C version (which is slower).
143 * The reason for this flag is that when the particular C compiler
144 * library routine is used, and the library is linked with a different
145 * compiler, the library is missing. This mostly happens when the
146 * library is built with gcc and then linked using normal cc. This would
147 * be a common occurrence because gcc normally produces code that is
148 * 2 times faster than system compilers for the big number stuff.
149 * For machines with only one compiler (or shared libraries), this should
150 * be on. Again this in only really a problem on machines
151 * using "long long's", are 32bit, and are not using my assembler code. */
152/* #define BN_DIV2W */
153
154#ifdef _LP64
155#undef BN_LLONG
156#define BN_ULONG unsigned long
157#define BN_LONG long
158#define BN_BITS 128
159#define BN_BYTES 8
160#define BN_BITS2 64
161#define BN_BITS4 32
162#define BN_MASK2 (0xffffffffffffffffL)
163#define BN_MASK2l (0xffffffffL)
164#define BN_MASK2h (0xffffffff00000000L)
165#define BN_MASK2h1 (0xffffffff80000000L)
166#define BN_TBIT (0x8000000000000000L)
167#define BN_DEC_CONV (10000000000000000000UL)
168#define BN_DEC_FMT1 "%lu"
169#define BN_DEC_FMT2 "%019lu"
170#define BN_DEC_NUM 19
171#define BN_HEX_FMT1 "%lX"
172#define BN_HEX_FMT2 "%016lX"
173#else
174#define BN_ULLONG unsigned long long
175#define BN_LLONG
176#define BN_ULONG unsigned int
177#define BN_LONG int
178#define BN_BITS 64
179#define BN_BYTES 4
180#define BN_BITS2 32
181#define BN_BITS4 16
182#define BN_MASK (0xffffffffffffffffLL)
183#define BN_MASK2 (0xffffffffL)
184#define BN_MASK2l (0xffff)
185#define BN_MASK2h1 (0xffff8000L)
186#define BN_MASK2h (0xffff0000L)
187#define BN_TBIT (0x80000000L)
188#define BN_DEC_CONV (1000000000L)
189#define BN_DEC_FMT1 "%u"
190#define BN_DEC_FMT2 "%09u"
191#define BN_DEC_NUM 9
192#define BN_HEX_FMT1 "%X"
193#define BN_HEX_FMT2 "%08X"
194#endif
195
196#define BN_FLG_MALLOCED 0x01
197#define BN_FLG_STATIC_DATA 0x02
198#define BN_FLG_CONSTTIME 0x04 /* avoid leaking exponent information through timing,
199 * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
200 * BN_div() will call BN_div_no_branch,
201 * BN_mod_inverse() will call BN_mod_inverse_no_branch.
202 */
203
204void BN_set_flags(BIGNUM *b, int n);
205int BN_get_flags(const BIGNUM *b, int n);
206void BN_with_flags(BIGNUM *dest, const BIGNUM *src, int flags);
207
208/* Values for |top| in BN_rand() */
209#define BN_RAND_TOP_ANY -1
210#define BN_RAND_TOP_ONE 0
211#define BN_RAND_TOP_TWO 1
212
213/* Values for |bottom| in BN_rand() */
214#define BN_RAND_BOTTOM_ANY 0
215#define BN_RAND_BOTTOM_ODD 1
216
217BN_GENCB *BN_GENCB_new(void);
218void BN_GENCB_free(BN_GENCB *cb);
219
220/* Wrapper function to make using BN_GENCB easier, */
221int BN_GENCB_call(BN_GENCB *cb, int a, int b);
222
223/* Populate a BN_GENCB structure with an "old"-style callback */
224void BN_GENCB_set_old(BN_GENCB *gencb, void (*callback)(int, int, void *),
225 void *cb_arg);
226
227/* Populate a BN_GENCB structure with a "new"-style callback */
228void BN_GENCB_set(BN_GENCB *gencb, int (*callback)(int, int, BN_GENCB *),
229 void *cb_arg);
230
231void *BN_GENCB_get_arg(BN_GENCB *cb);
232
233#define BN_prime_checks 0 /* default: select number of iterations
234 based on the size of the number */
235
236/*
237 * BN_prime_checks_for_size() returns the number of Miller-Rabin
238 * iterations that will be done for checking that a random number
239 * is probably prime. The error rate for accepting a composite
240 * number as prime depends on the size of the prime |b|. The error
241 * rates used are for calculating an RSA key with 2 primes, and so
242 * the level is what you would expect for a key of double the size
243 * of the prime.
244 *
245 * This table is generated using the algorithm of FIPS PUB 186-4
246 * Digital Signature Standard (DSS), section F.1, page 117.
247 * (https://dx.doi.org/10.6028/NIST.FIPS.186-4)
248 *
249 * The following magma script was used to generate the output:
250 * securitybits:=125;
251 * k:=1024;
252 * for t:=1 to 65 do
253 * for M:=3 to Floor(2*Sqrt(k-1)-1) do
254 * S:=0;
255 * // Sum over m
256 * for m:=3 to M do
257 * s:=0;
258 * // Sum over j
259 * for j:=2 to m do
260 * s+:=(RealField(32)!2)^-(j+(k-1)/j);
261 * end for;
262 * S+:=2^(m-(m-1)*t)*s;
263 * end for;
264 * A:=2^(k-2-M*t);
265 * B:=8*(Pi(RealField(32))^2-6)/3*2^(k-2)*S;
266 * pkt:=2.00743*Log(2)*k*2^-k*(A+B);
267 * seclevel:=Floor(-Log(2,pkt));
268 * if seclevel ge securitybits then
269 * printf "k: %5o, security: %o bits (t: %o, M: %o)\n",k,seclevel,t,M;
270 * break;
271 * end if;
272 * end for;
273 * if seclevel ge securitybits then break; end if;
274 * end for;
275 *
276 * It can be run online at:
277 * http://magma.maths.usyd.edu.au/calc
278 *
279 * And will output:
280 * k: 1024, security: 129 bits (t: 6, M: 23)
281 *
282 * k is the number of bits of the prime, securitybits is the level
283 * we want to reach.
284 *
285 * prime length | RSA key size | # MR tests | security level
286 * -------------+--------------|------------+---------------
287 * (b) >= 6394 | >= 12788 | 3 | 256 bit
288 * (b) >= 3747 | >= 7494 | 3 | 192 bit
289 * (b) >= 1345 | >= 2690 | 4 | 128 bit
290 * (b) >= 1080 | >= 2160 | 5 | 128 bit
291 * (b) >= 852 | >= 1704 | 5 | 112 bit
292 * (b) >= 476 | >= 952 | 5 | 80 bit
293 * (b) >= 400 | >= 800 | 6 | 80 bit
294 * (b) >= 347 | >= 694 | 7 | 80 bit
295 * (b) >= 308 | >= 616 | 8 | 80 bit
296 * (b) >= 55 | >= 110 | 27 | 64 bit
297 * (b) >= 6 | >= 12 | 34 | 64 bit
298 */
299
300#define BN_prime_checks_for_size(b) ((b) >= 3747 ? 3 : \
301 (b) >= 1345 ? 4 : \
302 (b) >= 476 ? 5 : \
303 (b) >= 400 ? 6 : \
304 (b) >= 347 ? 7 : \
305 (b) >= 308 ? 8 : \
306 (b) >= 55 ? 27 : \
307 /* b >= 6 */ 34)
308
309#define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
310
311int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w);
312int BN_is_zero(const BIGNUM *a);
313int BN_is_one(const BIGNUM *a);
314int BN_is_word(const BIGNUM *a, const BN_ULONG w);
315int BN_is_odd(const BIGNUM *a);
316
317void BN_zero(BIGNUM *a);
318int BN_one(BIGNUM *a);
319
320const BIGNUM *BN_value_one(void);
321BN_CTX *BN_CTX_new(void);
322void BN_CTX_free(BN_CTX *c);
323void BN_CTX_start(BN_CTX *ctx);
324BIGNUM *BN_CTX_get(BN_CTX *ctx);
325void BN_CTX_end(BN_CTX *ctx);
326int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
327int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
328int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
329int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
330int BN_num_bits(const BIGNUM *a);
331int BN_num_bits_word(BN_ULONG);
332BIGNUM *BN_new(void);
333void BN_clear_free(BIGNUM *a);
334BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
335void BN_swap(BIGNUM *a, BIGNUM *b);
336BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret);
337int BN_bn2bin(const BIGNUM *a, unsigned char *to);
338int BN_bn2binpad(const BIGNUM *a, unsigned char *to, int tolen);
339BIGNUM *BN_lebin2bn(const unsigned char *s, int len, BIGNUM *ret);
340int BN_bn2lebinpad(const BIGNUM *a, unsigned char *to, int tolen);
341BIGNUM *BN_mpi2bn(const unsigned char *s, int len, BIGNUM *ret);
342int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
343int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
344int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
345int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
346int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
347int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
348int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
349void BN_set_negative(BIGNUM *b, int n);
350
351int BN_is_negative(const BIGNUM *b);
352
353int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
354 BN_CTX *ctx);
355#define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
356
357int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
358int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
359int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
360int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
361int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
362int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
363 const BIGNUM *m, BN_CTX *ctx);
364int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
365int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
366int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
367int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m, BN_CTX *ctx);
368int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
369
370BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
371BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
372int BN_mul_word(BIGNUM *a, BN_ULONG w);
373int BN_add_word(BIGNUM *a, BN_ULONG w);
374int BN_sub_word(BIGNUM *a, BN_ULONG w);
375int BN_set_word(BIGNUM *a, BN_ULONG w);
376BN_ULONG BN_get_word(const BIGNUM *a);
377
378int BN_cmp(const BIGNUM *a, const BIGNUM *b);
379void BN_free(BIGNUM *a);
380int BN_is_bit_set(const BIGNUM *a, int n);
381int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
382int BN_lshift1(BIGNUM *r, const BIGNUM *a);
383int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
384
385int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
386 const BIGNUM *m, BN_CTX *ctx);
387int BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
388 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
389int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
390 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont);
391
392int BN_mask_bits(BIGNUM *a, int n);
393int BN_print_fp(FILE *fp, const BIGNUM *a);
394int BN_print(BIO *fp, const BIGNUM *a);
395int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
396int BN_rshift1(BIGNUM *r, const BIGNUM *a);
397void BN_clear(BIGNUM *a);
398BIGNUM *BN_dup(const BIGNUM *a);
399int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
400int BN_set_bit(BIGNUM *a, int n);
401int BN_clear_bit(BIGNUM *a, int n);
402char * BN_bn2hex(const BIGNUM *a);
403char * BN_bn2dec(const BIGNUM *a);
404int BN_hex2bn(BIGNUM **a, const char *str);
405int BN_dec2bn(BIGNUM **a, const char *str);
406int BN_asc2bn(BIGNUM **a, const char *str);
407int BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
408int BN_kronecker(const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx); /* returns -2 for error */
409BIGNUM *BN_mod_inverse(BIGNUM *ret,
410 const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
411BIGNUM *BN_mod_sqrt(BIGNUM *ret,
412 const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
413
414void BN_consttime_swap(BN_ULONG swap, BIGNUM *a, BIGNUM *b, int nwords);
415
416int BN_security_bits(int L, int N);
417
418int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe, const BIGNUM *add,
419 const BIGNUM *rem, BN_GENCB *cb);
420int BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, BN_GENCB *cb);
421int BN_is_prime_fasttest_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx,
422 int do_trial_division, BN_GENCB *cb);
423
424BN_MONT_CTX *BN_MONT_CTX_new(void);
425int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
426 BN_MONT_CTX *mont, BN_CTX *ctx);
427int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
428 BN_CTX *ctx);
429int BN_from_montgomery(BIGNUM *r, const BIGNUM *a,
430 BN_MONT_CTX *mont, BN_CTX *ctx);
431void BN_MONT_CTX_free(BN_MONT_CTX *mont);
432int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx);
433BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, const BN_MONT_CTX *from);
434BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
435 const BIGNUM *mod, BN_CTX *ctx);
436
437/* Primes from RFC 2409 */
438BIGNUM *BN_get_rfc2409_prime_768(BIGNUM *bn);
439BIGNUM *BN_get_rfc2409_prime_1024(BIGNUM *bn);
440
441/* Primes from RFC 3526 */
442BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *bn);
443BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *bn);
444BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *bn);
445BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *bn);
446BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *bn);
447BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *bn);
448
449void ERR_load_BN_strings(void);
450
451/* Error codes for the BN functions. */
452
453/* Function codes. */
454#define BN_F_BNRAND 127
455#define BN_F_BN_BLINDING_CONVERT_EX 100
456#define BN_F_BN_BLINDING_CREATE_PARAM 128
457#define BN_F_BN_BLINDING_INVERT_EX 101
458#define BN_F_BN_BLINDING_NEW 102
459#define BN_F_BN_BLINDING_UPDATE 103
460#define BN_F_BN_BN2DEC 104
461#define BN_F_BN_BN2HEX 105
462#define BN_F_BN_CTX_GET 116
463#define BN_F_BN_CTX_NEW 106
464#define BN_F_BN_CTX_START 129
465#define BN_F_BN_DIV 107
466#define BN_F_BN_DIV_NO_BRANCH 138
467#define BN_F_BN_DIV_RECP 130
468#define BN_F_BN_EXP 123
469#define BN_F_BN_EXPAND2 108
470#define BN_F_BN_GENERATE_PRIME_EX 140
471#define BN_F_BN_EXPAND_INTERNAL 120
472#define BN_F_BN_GF2M_MOD 131
473#define BN_F_BN_GF2M_MOD_EXP 132
474#define BN_F_BN_GF2M_MOD_MUL 133
475#define BN_F_BN_GF2M_MOD_SOLVE_QUAD 134
476#define BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR 135
477#define BN_F_BN_GF2M_MOD_SQR 136
478#define BN_F_BN_GF2M_MOD_SQRT 137
479#define BN_F_BN_MOD_EXP2_MONT 118
480#define BN_F_BN_MOD_EXP_MONT 109
481#define BN_F_BN_MOD_EXP_MONT_CONSTTIME 124
482#define BN_F_BN_MOD_EXP_MONT_WORD 117
483#define BN_F_BN_MOD_EXP_RECP 125
484#define BN_F_BN_MOD_EXP_SIMPLE 126
485#define BN_F_BN_MOD_INVERSE 110
486#define BN_F_BN_MOD_INVERSE_NO_BRANCH 139
487#define BN_F_BN_MOD_LSHIFT_QUICK 119
488#define BN_F_BN_MOD_MUL_RECIPROCAL 111
489#define BN_F_BN_MOD_SQRT 121
490#define BN_F_BN_MPI2BN 112
491#define BN_F_BN_NEW 113
492#define BN_F_BN_RAND 114
493#define BN_F_BN_RAND_RANGE 122
494#define BN_F_BN_USUB 115
495
496/* Reason codes. */
497#define BN_R_ARG2_LT_ARG3 100
498#define BN_R_BAD_RECIPROCAL 101
499#define BN_R_BIGNUM_TOO_LONG 114
500#define BN_R_BITS_TOO_SMALL 117
501#define BN_R_CALLED_WITH_EVEN_MODULUS 102
502#define BN_R_DIV_BY_ZERO 103
503#define BN_R_ENCODING_ERROR 104
504#define BN_R_EXPAND_ON_STATIC_BIGNUM_DATA 105
505#define BN_R_INPUT_NOT_REDUCED 110
506#define BN_R_INVALID_ARGUMENT 118
507#define BN_R_INVALID_LENGTH 106
508#define BN_R_INVALID_RANGE 115
509#define BN_R_NOT_A_SQUARE 111
510#define BN_R_NOT_INITIALIZED 107
511#define BN_R_NO_INVERSE 108
512#define BN_R_NO_SOLUTION 116
513#define BN_R_P_IS_NOT_PRIME 112
514#define BN_R_TOO_MANY_ITERATIONS 113
515#define BN_R_TOO_MANY_TEMPORARY_VARIABLES 109
516
517#ifdef __cplusplus
518}
519#endif
520#endif
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