* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * Portions of the attached software ("Contribution") are developed by
+ * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
+ *
+ * The Contribution is licensed pursuant to the Eric Young open source
+ * license provided above.
+ *
+ * The binary polynomial arithmetic software is originally written by
+ * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
+ *
+ */
#ifndef HEADER_BN_H
-#define HEADER_BN_H
+# define HEADER_BN_H
-#ifndef NO_FP_API
-#include <stdio.h> /* FILE */
-#endif
-#include <openssl/opensslconf.h>
+# include <limits.h>
+# include <openssl/e_os2.h>
+# ifndef OPENSSL_NO_FP_API
+# include <stdio.h> /* FILE */
+# endif
+# include <openssl/ossl_typ.h>
+# include <openssl/crypto.h>
#ifdef __cplusplus
extern "C" {
#endif
-#ifdef VMS
-#undef BN_LLONG /* experimental, so far... */
-#endif
-
-#define BN_MUL_COMBA
-#define BN_SQR_COMBA
-#define BN_RECURSION
-
-/* This next option uses the C libraries (2 word)/(1 word) function.
- * If it is not defined, I use my C version (which is slower).
- * The reason for this flag is that when the particular C compiler
- * library routine is used, and the library is linked with a different
- * compiler, the library is missing. This mostly happens when the
- * library is built with gcc and then linked using normal cc. This would
- * be a common occurrence because gcc normally produces code that is
- * 2 times faster than system compilers for the big number stuff.
- * For machines with only one compiler (or shared libraries), this should
- * be on. Again this in only really a problem on machines
- * using "long long's", are 32bit, and are not using my assembler code. */
-#if defined(MSDOS) || defined(WINDOWS) || defined(WIN32) || defined(linux)
-#undef BN_DIV2W
-#define BN_DIV2W
-#endif
-
-/* assuming long is 64bit - this is the DEC Alpha
- * unsigned long long is only 64 bits :-(, don't define
- * BN_LLONG for the DEC Alpha */
-#ifdef SIXTY_FOUR_BIT_LONG
-#define BN_ULLONG unsigned long long
-#define BN_ULONG unsigned long
-#define BN_LONG long
-#define BN_BITS 128
-#define BN_BYTES 8
-#define BN_BITS2 64
-#define BN_BITS4 32
-#define BN_MASK (0xffffffffffffffffffffffffffffffffLL)
-#define BN_MASK2 (0xffffffffffffffffL)
-#define BN_MASK2l (0xffffffffL)
-#define BN_MASK2h (0xffffffff00000000L)
-#define BN_MASK2h1 (0xffffffff80000000L)
-#define BN_TBIT (0x8000000000000000L)
-#define BN_DEC_CONV (10000000000000000000UL)
-#define BN_DEC_FMT1 "%lu"
-#define BN_DEC_FMT2 "%019lu"
-#define BN_DEC_NUM 19
-#endif
-
-/* This is where the long long data type is 64 bits, but long is 32.
- * For machines where there are 64bit registers, this is the mode to use.
- * IRIX, on R4000 and above should use this mode, along with the relevant
- * assembler code :-). Do NOT define BN_LLONG.
+/*
+ * These preprocessor symbols control various aspects of the bignum headers
+ * and library code. They're not defined by any "normal" configuration, as
+ * they are intended for development and testing purposes. NB: defining all
+ * three can be useful for debugging application code as well as openssl
+ * itself. BN_DEBUG - turn on various debugging alterations to the bignum
+ * code BN_DEBUG_RAND - uses random poisoning of unused words to trip up
+ * mismanagement of bignum internals. You must also define BN_DEBUG.
*/
-#ifdef SIXTY_FOUR_BIT
-#undef BN_LLONG
-#undef BN_ULLONG
-#define BN_ULONG unsigned long long
-#define BN_LONG long long
-#define BN_BITS 128
-#define BN_BYTES 8
-#define BN_BITS2 64
-#define BN_BITS4 32
-#define BN_MASK2 (0xffffffffffffffffLL)
-#define BN_MASK2l (0xffffffffL)
-#define BN_MASK2h (0xffffffff00000000LL)
-#define BN_MASK2h1 (0xffffffff80000000LL)
-#define BN_TBIT (0x8000000000000000LL)
-#define BN_DEC_CONV (10000000000000000000LL)
-#define BN_DEC_FMT1 "%llu"
-#define BN_DEC_FMT2 "%019llu"
-#define BN_DEC_NUM 19
-#endif
-
-#ifdef THIRTY_TWO_BIT
-#if defined(WIN32) && !defined(__GNUC__)
-#define BN_ULLONG unsigned _int64
-#else
-#define BN_ULLONG unsigned long long
-#endif
-#define BN_ULONG unsigned long
-#define BN_LONG long
-#define BN_BITS 64
-#define BN_BYTES 4
-#define BN_BITS2 32
-#define BN_BITS4 16
-#ifdef WIN32
-/* VC++ doesn't like the LL suffix */
-#define BN_MASK (0xffffffffffffffffL)
-#else
-#define BN_MASK (0xffffffffffffffffLL)
-#endif
-#define BN_MASK2 (0xffffffffL)
-#define BN_MASK2l (0xffff)
-#define BN_MASK2h1 (0xffff8000L)
-#define BN_MASK2h (0xffff0000L)
-#define BN_TBIT (0x80000000L)
-#define BN_DEC_CONV (1000000000L)
-#define BN_DEC_FMT1 "%lu"
-#define BN_DEC_FMT2 "%09lu"
-#define BN_DEC_NUM 9
-#endif
-
-#ifdef SIXTEEN_BIT
-#ifndef BN_DIV2W
-#define BN_DIV2W
-#endif
-#define BN_ULLONG unsigned long
-#define BN_ULONG unsigned short
-#define BN_LONG short
-#define BN_BITS 32
-#define BN_BYTES 2
-#define BN_BITS2 16
-#define BN_BITS4 8
-#define BN_MASK (0xffffffff)
-#define BN_MASK2 (0xffff)
-#define BN_MASK2l (0xff)
-#define BN_MASK2h1 (0xff80)
-#define BN_MASK2h (0xff00)
-#define BN_TBIT (0x8000)
-#define BN_DEC_CONV (100000)
-#define BN_DEC_FMT1 "%u"
-#define BN_DEC_FMT2 "%05u"
-#define BN_DEC_NUM 5
-#endif
-
-#ifdef EIGHT_BIT
-#ifndef BN_DIV2W
-#define BN_DIV2W
-#endif
-#define BN_ULLONG unsigned short
-#define BN_ULONG unsigned char
-#define BN_LONG char
-#define BN_BITS 16
-#define BN_BYTES 1
-#define BN_BITS2 8
-#define BN_BITS4 4
-#define BN_MASK (0xffff)
-#define BN_MASK2 (0xff)
-#define BN_MASK2l (0xf)
-#define BN_MASK2h1 (0xf8)
-#define BN_MASK2h (0xf0)
-#define BN_TBIT (0x80)
-#define BN_DEC_CONV (100)
-#define BN_DEC_FMT1 "%u"
-#define BN_DEC_FMT2 "%02u"
-#define BN_DEC_NUM 2
-#endif
-
-#define BN_DEFAULT_BITS 1280
-
-#ifdef BIGNUM
-#undef BIGNUM
-#endif
-
-#define BN_FLG_MALLOCED 0x01
-#define BN_FLG_STATIC_DATA 0x02
-#define BN_FLG_FREE 0x8000 /* used for debuging */
-#define BN_set_flags(b,n) ((b)->flags|=(n))
-#define BN_get_flags(b,n) ((b)->flags&(n))
-
-typedef struct bignum_st
- {
- BN_ULONG *d; /* Pointer to an array of 'BN_BITS2' bit chunks. */
- int top; /* Index of last used d +1. */
- /* The next are internal book keeping for bn_expand. */
- int dmax; /* Size of the d array. */
- int neg; /* one if the number is negative */
- int flags;
- } BIGNUM;
-
-/* Used for temp variables */
-#define BN_CTX_NUM 20
-#define BN_CTX_NUM_POS 12
-typedef struct bignum_ctx
- {
- int tos;
- BIGNUM bn[BN_CTX_NUM];
- int flags;
- int depth;
- int pos[BN_CTX_NUM_POS];
- int too_many;
- } BN_CTX;
-
-typedef struct bn_blinding_st
- {
- int init;
- BIGNUM *A;
- BIGNUM *Ai;
- BIGNUM *mod; /* just a reference */
- } BN_BLINDING;
+/* #define BN_DEBUG */
+/* #define BN_DEBUG_RAND */
+
+# ifndef OPENSSL_SMALL_FOOTPRINT
+# define BN_MUL_COMBA
+# define BN_SQR_COMBA
+# define BN_RECURSION
+# endif
+
+/*
+ * This next option uses the C libraries (2 word)/(1 word) function. If it is
+ * not defined, I use my C version (which is slower). The reason for this
+ * flag is that when the particular C compiler library routine is used, and
+ * the library is linked with a different compiler, the library is missing.
+ * This mostly happens when the library is built with gcc and then linked
+ * using normal cc. This would be a common occurrence because gcc normally
+ * produces code that is 2 times faster than system compilers for the big
+ * number stuff. For machines with only one compiler (or shared libraries),
+ * this should be on. Again this in only really a problem on machines using
+ * "long long's", are 32bit, and are not using my assembler code.
+ */
+# if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || \
+ defined(OPENSSL_SYS_WIN32) || defined(linux)
+# ifndef BN_DIV2W
+# define BN_DIV2W
+# endif
+# endif
+
+/*
+ * assuming long is 64bit - this is the DEC Alpha unsigned long long is only
+ * 64 bits :-(, don't define BN_LLONG for the DEC Alpha
+ */
+# ifdef SIXTY_FOUR_BIT_LONG
+# define BN_ULLONG unsigned long long
+# define BN_ULONG unsigned long
+# define BN_LONG long
+# define BN_BITS 128
+# define BN_BYTES 8
+# define BN_BITS2 64
+# define BN_BITS4 32
+# define BN_MASK (0xffffffffffffffffffffffffffffffffLL)
+# define BN_MASK2 (0xffffffffffffffffL)
+# define BN_MASK2l (0xffffffffL)
+# define BN_MASK2h (0xffffffff00000000L)
+# define BN_MASK2h1 (0xffffffff80000000L)
+# define BN_TBIT (0x8000000000000000L)
+# define BN_DEC_CONV (10000000000000000000UL)
+# define BN_DEC_FMT1 "%lu"
+# define BN_DEC_FMT2 "%019lu"
+# define BN_DEC_NUM 19
+# define BN_HEX_FMT1 "%lX"
+# define BN_HEX_FMT2 "%016lX"
+# endif
+
+/*
+ * This is where the long long data type is 64 bits, but long is 32. For
+ * machines where there are 64bit registers, this is the mode to use. IRIX,
+ * on R4000 and above should use this mode, along with the relevant assembler
+ * code :-). Do NOT define BN_LLONG.
+ */
+# ifdef SIXTY_FOUR_BIT
+# undef BN_LLONG
+# undef BN_ULLONG
+# define BN_ULONG unsigned long long
+# define BN_LONG long long
+# define BN_BITS 128
+# define BN_BYTES 8
+# define BN_BITS2 64
+# define BN_BITS4 32
+# define BN_MASK2 (0xffffffffffffffffLL)
+# define BN_MASK2l (0xffffffffL)
+# define BN_MASK2h (0xffffffff00000000LL)
+# define BN_MASK2h1 (0xffffffff80000000LL)
+# define BN_TBIT (0x8000000000000000LL)
+# define BN_DEC_CONV (10000000000000000000ULL)
+# define BN_DEC_FMT1 "%llu"
+# define BN_DEC_FMT2 "%019llu"
+# define BN_DEC_NUM 19
+# define BN_HEX_FMT1 "%llX"
+# define BN_HEX_FMT2 "%016llX"
+# endif
+
+# ifdef THIRTY_TWO_BIT
+# ifdef BN_LLONG
+# if defined(_WIN32) && !defined(__GNUC__)
+# define BN_ULLONG unsigned __int64
+# define BN_MASK (0xffffffffffffffffI64)
+# else
+# define BN_ULLONG unsigned long long
+# define BN_MASK (0xffffffffffffffffLL)
+# endif
+# endif
+# define BN_ULONG unsigned int
+# define BN_LONG int
+# define BN_BITS 64
+# define BN_BYTES 4
+# define BN_BITS2 32
+# define BN_BITS4 16
+# define BN_MASK2 (0xffffffffL)
+# define BN_MASK2l (0xffff)
+# define BN_MASK2h1 (0xffff8000L)
+# define BN_MASK2h (0xffff0000L)
+# define BN_TBIT (0x80000000L)
+# define BN_DEC_CONV (1000000000L)
+# define BN_DEC_FMT1 "%u"
+# define BN_DEC_FMT2 "%09u"
+# define BN_DEC_NUM 9
+# define BN_HEX_FMT1 "%X"
+# define BN_HEX_FMT2 "%08X"
+# endif
+
+# define BN_DEFAULT_BITS 1280
+
+# define BN_FLG_MALLOCED 0x01
+# define BN_FLG_STATIC_DATA 0x02
+
+/*
+ * avoid leaking exponent information through timing,
+ * BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
+ * BN_div() will call BN_div_no_branch,
+ * BN_mod_inverse() will call BN_mod_inverse_no_branch.
+ */
+# define BN_FLG_CONSTTIME 0x04
+
+# ifdef OPENSSL_NO_DEPRECATED
+/* deprecated name for the flag */
+# define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME
+/*
+ * avoid leaking exponent information through timings
+ * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime)
+ */
+# endif
+
+# ifndef OPENSSL_NO_DEPRECATED
+# define BN_FLG_FREE 0x8000
+ /* used for debuging */
+# endif
+# define BN_set_flags(b,n) ((b)->flags|=(n))
+# define BN_get_flags(b,n) ((b)->flags&(n))
+
+/*
+ * get a clone of a BIGNUM with changed flags, for *temporary* use only (the
+ * two BIGNUMs cannot not be used in parallel!)
+ */
+# define BN_with_flags(dest,b,n) ((dest)->d=(b)->d, \
+ (dest)->top=(b)->top, \
+ (dest)->dmax=(b)->dmax, \
+ (dest)->neg=(b)->neg, \
+ (dest)->flags=(((dest)->flags & BN_FLG_MALLOCED) \
+ | ((b)->flags & ~BN_FLG_MALLOCED) \
+ | BN_FLG_STATIC_DATA \
+ | (n)))
+
+/* Already declared in ossl_typ.h */
+# if 0
+typedef struct bignum_st BIGNUM;
+/* Used for temp variables (declaration hidden in bn_lcl.h) */
+typedef struct bignum_ctx BN_CTX;
+typedef struct bn_blinding_st BN_BLINDING;
+typedef struct bn_mont_ctx_st BN_MONT_CTX;
+typedef struct bn_recp_ctx_st BN_RECP_CTX;
+typedef struct bn_gencb_st BN_GENCB;
+# endif
+
+struct bignum_st {
+ BN_ULONG *d; /* Pointer to an array of 'BN_BITS2' bit
+ * chunks. */
+ int top; /* Index of last used d +1. */
+ /* The next are internal book keeping for bn_expand. */
+ int dmax; /* Size of the d array. */
+ int neg; /* one if the number is negative */
+ int flags;
+};
/* Used for montgomery multiplication */
-typedef struct bn_mont_ctx_st
- {
- int ri; /* number of bits in R */
- BIGNUM RR; /* used to convert to montgomery form */
- BIGNUM N; /* The modulus */
- BIGNUM Ni; /* R*(1/R mod N) - N*Ni = 1
- * (Ni is only stored for bignum algorithm) */
- BN_ULONG n0; /* least significant word of Ni */
- int flags;
- } BN_MONT_CTX;
-
-/* Used for reciprocal division/mod functions
- * It cannot be shared between threads
+struct bn_mont_ctx_st {
+ int ri; /* number of bits in R */
+ BIGNUM RR; /* used to convert to montgomery form */
+ BIGNUM N; /* The modulus */
+ BIGNUM Ni; /* R*(1/R mod N) - N*Ni = 1 (Ni is only
+ * stored for bignum algorithm) */
+ BN_ULONG n0[2]; /* least significant word(s) of Ni; (type
+ * changed with 0.9.9, was "BN_ULONG n0;"
+ * before) */
+ int flags;
+};
+
+/*
+ * Used for reciprocal division/mod functions It cannot be shared between
+ * threads
*/
-typedef struct bn_recp_ctx_st
- {
- BIGNUM N; /* the divisor */
- BIGNUM Nr; /* the reciprocal */
- int num_bits;
- int shift;
- int flags;
- } BN_RECP_CTX;
-
-#define BN_prime_checks 0 /* default: select number of iterations
- based on the size of the number */
-
-/* number of Miller-Rabin iterations for an error rate of less than 2^-80
- * for random 'b'-bit input, b >= 100 (taken from table 4.4 in the Handbook
- * of Applied Cryptography [Menezes, van Oorschot, Vanstone; CRC Press 1996];
- * original paper: Damgaard, Landrock, Pomerance: Average case error estimates
- * for the strong probable prime test. -- Math. Comp. 61 (1993) 177-194) */
-#define BN_prime_checks_for_size(b) ((b) >= 1300 ? 2 : \
+struct bn_recp_ctx_st {
+ BIGNUM N; /* the divisor */
+ BIGNUM Nr; /* the reciprocal */
+ int num_bits;
+ int shift;
+ int flags;
+};
+
+/* Used for slow "generation" functions. */
+struct bn_gencb_st {
+ unsigned int ver; /* To handle binary (in)compatibility */
+ void *arg; /* callback-specific data */
+ union {
+ /* if(ver==1) - handles old style callbacks */
+ void (*cb_1) (int, int, void *);
+ /* if(ver==2) - new callback style */
+ int (*cb_2) (int, int, BN_GENCB *);
+ } cb;
+};
+/* Wrapper function to make using BN_GENCB easier, */
+int BN_GENCB_call(BN_GENCB *cb, int a, int b);
+/* Macro to populate a BN_GENCB structure with an "old"-style callback */
+# define BN_GENCB_set_old(gencb, callback, cb_arg) { \
+ BN_GENCB *tmp_gencb = (gencb); \
+ tmp_gencb->ver = 1; \
+ tmp_gencb->arg = (cb_arg); \
+ tmp_gencb->cb.cb_1 = (callback); }
+/* Macro to populate a BN_GENCB structure with a "new"-style callback */
+# define BN_GENCB_set(gencb, callback, cb_arg) { \
+ BN_GENCB *tmp_gencb = (gencb); \
+ tmp_gencb->ver = 2; \
+ tmp_gencb->arg = (cb_arg); \
+ tmp_gencb->cb.cb_2 = (callback); }
+
+# define BN_prime_checks 0 /* default: select number of iterations based
+ * on the size of the number */
+
+/*
+ * number of Miller-Rabin iterations for an error rate of less than 2^-80 for
+ * random 'b'-bit input, b >= 100 (taken from table 4.4 in the Handbook of
+ * Applied Cryptography [Menezes, van Oorschot, Vanstone; CRC Press 1996];
+ * original paper: Damgaard, Landrock, Pomerance: Average case error
+ * estimates for the strong probable prime test. -- Math. Comp. 61 (1993)
+ * 177-194)
+ */
+# define BN_prime_checks_for_size(b) ((b) >= 1300 ? 2 : \
(b) >= 850 ? 3 : \
(b) >= 650 ? 4 : \
(b) >= 550 ? 5 : \
(b) >= 150 ? 18 : \
/* b >= 100 */ 27)
-#define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
-
-/* Note that BN_abs_is_word does not work reliably for w == 0 */
-#define BN_abs_is_word(a,w) (((a)->top == 1) && ((a)->d[0] == (BN_ULONG)(w)))
-#define BN_is_zero(a) (((a)->top == 0) || BN_abs_is_word(a,0))
-#define BN_is_one(a) (BN_abs_is_word((a),1) && !(a)->neg)
-#define BN_is_word(a,w) ((w) ? BN_abs_is_word((a),(w)) && !(a)->neg : \
- BN_is_zero((a)))
-#define BN_is_odd(a) (((a)->top > 0) && ((a)->d[0] & 1))
-
-#define BN_one(a) (BN_set_word((a),1))
-#define BN_zero(a) (BN_set_word((a),0))
-
-/*#define BN_ascii2bn(a) BN_hex2bn(a) */
-/*#define BN_bn2ascii(a) BN_bn2hex(a) */
-
-BIGNUM *BN_value_one(void);
-char * BN_options(void);
+# define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
+
+/* Note that BN_abs_is_word didn't work reliably for w == 0 until 0.9.8 */
+# define BN_abs_is_word(a,w) ((((a)->top == 1) && ((a)->d[0] == (BN_ULONG)(w))) || \
+ (((w) == 0) && ((a)->top == 0)))
+# define BN_is_zero(a) ((a)->top == 0)
+# define BN_is_one(a) (BN_abs_is_word((a),1) && !(a)->neg)
+# define BN_is_word(a,w) (BN_abs_is_word((a),(w)) && (!(w) || !(a)->neg))
+# define BN_is_odd(a) (((a)->top > 0) && ((a)->d[0] & 1))
+
+# define BN_one(a) (BN_set_word((a),1))
+# define BN_zero_ex(a) \
+ do { \
+ BIGNUM *_tmp_bn = (a); \
+ _tmp_bn->top = 0; \
+ _tmp_bn->neg = 0; \
+ } while(0)
+# ifdef OPENSSL_NO_DEPRECATED
+# define BN_zero(a) BN_zero_ex(a)
+# else
+# define BN_zero(a) (BN_set_word((a),0))
+# endif
+
+const BIGNUM *BN_value_one(void);
+char *BN_options(void);
BN_CTX *BN_CTX_new(void);
-void BN_CTX_init(BN_CTX *c);
-void BN_CTX_free(BN_CTX *c);
-void BN_CTX_start(BN_CTX *ctx);
+# ifndef OPENSSL_NO_DEPRECATED
+void BN_CTX_init(BN_CTX *c);
+# endif
+void BN_CTX_free(BN_CTX *c);
+void BN_CTX_start(BN_CTX *ctx);
BIGNUM *BN_CTX_get(BN_CTX *ctx);
-void BN_CTX_end(BN_CTX *ctx);
-int BN_rand(BIGNUM *rnd, int bits, int top,int bottom);
-int BN_pseudo_rand(BIGNUM *rnd, int bits, int top,int bottom);
-int BN_rand_range(BIGNUM *rnd, BIGNUM *min, BIGNUM *max);
-int BN_num_bits(const BIGNUM *a);
-int BN_num_bits_word(BN_ULONG);
+void BN_CTX_end(BN_CTX *ctx);
+int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
+int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
+int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
+int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
+int BN_num_bits(const BIGNUM *a);
+int BN_num_bits_word(BN_ULONG);
BIGNUM *BN_new(void);
-void BN_init(BIGNUM *);
-void BN_clear_free(BIGNUM *a);
+void BN_init(BIGNUM *);
+void BN_clear_free(BIGNUM *a);
BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
-void BN_swap(BIGNUM *a, BIGNUM *b);
-BIGNUM *BN_bin2bn(const unsigned char *s,int len,BIGNUM *ret);
-int BN_bn2bin(const BIGNUM *a, unsigned char *to);
-BIGNUM *BN_mpi2bn(const unsigned char *s,int len,BIGNUM *ret);
-int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
-int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
-int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
-int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
-int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
-int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
-int BN_sqr(BIGNUM *r, const BIGNUM *a,BN_CTX *ctx);
-
-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);
+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);
+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_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 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);
+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_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 */
+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);
+ const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
BIGNUM *BN_mod_sqrt(BIGNUM *ret,
- const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
-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);
-void ERR_load_BN_strings(void );
-
-BN_MONT_CTX *BN_MONT_CTX_new(void );
+ 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);
+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 *modulus,BN_CTX *ctx);
-BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to,BN_MONT_CTX *from);
+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 *BN_BLINDING_new(BIGNUM *A,BIGNUM *Ai,BIGNUM *mod);
+/* 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 *r, BN_CTX *ctx);
+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);
-
-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 */
-
-void BN_RECP_CTX_init(BN_RECP_CTX *recp);
+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);
+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))
-#define bn_wexpand(a,words) (((words) <= (a)->dmax)?(a):bn_expand2((a),(words)))
+# define bn_expand(a,bits) \
+ ( \
+ bits > (INT_MAX - BN_BITS2 + 1) ? \
+ NULL \
+ : \
+ (((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);
-BIGNUM *bn_dup_expand(const 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.
+ */
-#define bn_fix_top(a) \
+# 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; \
- if ((a)->top > 0) \
- { \
- for (ftl= &((a)->d[(a)->top-1]); (a)->top > 0; (a)->top--) \
- if (*(ftl--)) break; \
- } \
- }
-
-BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
+ 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);
+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);
-
-#ifdef BN_DEBUG
-void bn_dump1(FILE *o, const char *a, const BN_ULONG *b,int n);
-# define bn_print(a) {fprintf(stderr, #a "="); BN_print_fp(stderr,a); \
- fprintf(stderr,"\n");}
-# define bn_dump(a,n) bn_dump1(stderr,#a,a,n);
-#else
-# define bn_print(a)
-# define bn_dump(a,b)
-#endif
+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);
-int BN_bntest_rand(BIGNUM *rnd, int bits, int top,int bottom);
+/* 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
+/*
+ * 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_BN_BLINDING_CONVERT 100
-#define BN_F_BN_BLINDING_INVERT 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_DIV 107
-#define BN_F_BN_EXPAND2 108
-#define BN_F_BN_EXPAND_INTERNAL 120
-#define BN_F_BN_MOD_EXP2_MONT 118
-#define BN_F_BN_MOD_EXP_MONT 109
-#define BN_F_BN_MOD_EXP_MONT_WORD 117
-#define BN_F_BN_MOD_INVERSE 110
-#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_USUB 115
+# 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_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_NOT_A_SQUARE 111
-#define BN_R_NOT_INITIALIZED 107
-#define BN_R_NO_INVERSE 108
-#define BN_R_P_IS_NOT_PRIME 112
-#define BN_R_TOO_MANY_ITERATIONS 113
-#define BN_R_TOO_MANY_TEMPORARY_VARIABLES 109
+# 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
-
projects / openssl.git / blobdiff