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- /* crypto/bn/bn.h */
- /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
- #ifndef HEADER_BN_H
- #define HEADER_BN_H
-
- #include <openssl/e_os2.h>
- #ifndef OPENSSL_NO_FP_API
- #include <stdio.h> /* FILE */
- #endif
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #ifdef OPENSSL_SYS_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(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
- #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
- #endif
-
- #ifdef THIRTY_TWO_BIT
- #if defined(OPENSSL_SYS_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 OPENSSL_SYS_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_EXP_CONSTTIME 0x04 /* avoid leaking exponent information through timings
- * (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime) */
- #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))
-
- /* 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)))
-
- 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 (declaration hidden in bn_lcl.h) */
- typedef struct bignum_ctx BN_CTX;
-
- typedef struct bn_blinding_st
- {
- int init;
- BIGNUM *A;
- BIGNUM *Ai;
- BIGNUM *mod; /* just a reference */
- unsigned long thread_id; /* added in OpenSSL 0.9.6j and 0.9.7b;
- * used only by crypto/rsa/rsa_eay.c, rsa_lib.c */
- } BN_BLINDING;
-
- /* 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
- */
- 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 : \
- (b) >= 850 ? 3 : \
- (b) >= 650 ? 4 : \
- (b) >= 550 ? 5 : \
- (b) >= 450 ? 6 : \
- (b) >= 400 ? 7 : \
- (b) >= 350 ? 8 : \
- (b) >= 300 ? 9 : \
- (b) >= 250 ? 12 : \
- (b) >= 200 ? 15 : \
- (b) >= 150 ? 18 : \
- /* b >= 100 */ 27)
-
- #define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
-
- /* Note that BN_abs_is_word 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) */
-
- 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);
- 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 *range);
- int BN_pseudo_rand_range(BIGNUM *rnd, BIGNUM *range);
- int BN_num_bits(const BIGNUM *a);
- int BN_num_bits_word(BN_ULONG);
- BIGNUM *BN_new(void);
- void BN_init(BIGNUM *);
- void BN_clear_free(BIGNUM *a);
- BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
- void BN_swap(BIGNUM *a, BIGNUM *b);
- BIGNUM *BN_bin2bn(const unsigned char *s,int len,BIGNUM *ret);
- int BN_bn2bin(const BIGNUM *a, unsigned char *to);
- BIGNUM *BN_mpi2bn(const unsigned char *s,int len,BIGNUM *ret);
- int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
- int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
- int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
- int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
- int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
- int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
- int BN_sqr(BIGNUM *r, const BIGNUM *a,BN_CTX *ctx);
-
- int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
- BN_CTX *ctx);
- #define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
- int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
- int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
- int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
- int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
- const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
- int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m, BN_CTX *ctx);
- int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
-
- BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
- BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
- int BN_mul_word(BIGNUM *a, BN_ULONG w);
- int BN_add_word(BIGNUM *a, BN_ULONG w);
- int BN_sub_word(BIGNUM *a, BN_ULONG w);
- int BN_set_word(BIGNUM *a, BN_ULONG w);
- BN_ULONG BN_get_word(const BIGNUM *a);
-
- int BN_cmp(const BIGNUM *a, const BIGNUM *b);
- void BN_free(BIGNUM *a);
- int BN_is_bit_set(const BIGNUM *a, int n);
- int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
- int BN_lshift1(BIGNUM *r, const BIGNUM *a);
- int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,BN_CTX *ctx);
-
- int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m,BN_CTX *ctx);
- int BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
- int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont);
- int BN_mod_exp_mont_word(BIGNUM *r, BN_ULONG a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
- int BN_mod_exp2_mont(BIGNUM *r, const BIGNUM *a1, const BIGNUM *p1,
- const BIGNUM *a2, const BIGNUM *p2,const BIGNUM *m,
- BN_CTX *ctx,BN_MONT_CTX *m_ctx);
- int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m,BN_CTX *ctx);
-
- int BN_mask_bits(BIGNUM *a,int n);
- #ifndef OPENSSL_NO_FP_API
- int BN_print_fp(FILE *fp, const BIGNUM *a);
- #endif
- #ifdef HEADER_BIO_H
- int BN_print(BIO *fp, const BIGNUM *a);
- #else
- int BN_print(void *fp, const BIGNUM *a);
- #endif
- int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx);
- int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
- int BN_rshift1(BIGNUM *r, const BIGNUM *a);
- void BN_clear(BIGNUM *a);
- BIGNUM *BN_dup(const BIGNUM *a);
- int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
- int BN_set_bit(BIGNUM *a, int n);
- int BN_clear_bit(BIGNUM *a, int n);
- char * BN_bn2hex(const BIGNUM *a);
- char * BN_bn2dec(const BIGNUM *a);
- int BN_hex2bn(BIGNUM **a, const char *str);
- int BN_dec2bn(BIGNUM **a, const char *str);
- int BN_gcd(BIGNUM *r,const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx);
- int BN_kronecker(const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx); /* returns -2 for error */
- BIGNUM *BN_mod_inverse(BIGNUM *ret,
- const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
- BIGNUM *BN_mod_sqrt(BIGNUM *ret,
- const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
- 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);
-
- #ifdef OPENSSL_FIPS
- int BN_X931_derive_prime(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
- void (*cb)(int, int, void *), void *cb_arg,
- const BIGNUM *Xp, const BIGNUM *Xp1, const BIGNUM *Xp2,
- const BIGNUM *e, BN_CTX *ctx);
- int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx);
- int BN_X931_generate_prime(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,
- BIGNUM *Xp1, BIGNUM *Xp2,
- const BIGNUM *Xp,
- const BIGNUM *e, BN_CTX *ctx,
- void (*cb)(int, int, void *), void *cb_arg);
- #endif
-
- BN_MONT_CTX *BN_MONT_CTX_new(void );
- void BN_MONT_CTX_init(BN_MONT_CTX *ctx);
- int BN_mod_mul_montgomery(BIGNUM *r,const BIGNUM *a,const BIGNUM *b,
- BN_MONT_CTX *mont, BN_CTX *ctx);
- #define BN_to_montgomery(r,a,mont,ctx) BN_mod_mul_montgomery(\
- (r),(a),&((mont)->RR),(mont),(ctx))
- int BN_from_montgomery(BIGNUM *r,const BIGNUM *a,
- BN_MONT_CTX *mont, BN_CTX *ctx);
- void BN_MONT_CTX_free(BN_MONT_CTX *mont);
- int BN_MONT_CTX_set(BN_MONT_CTX *mont,const BIGNUM *mod,BN_CTX *ctx);
- BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to,BN_MONT_CTX *from);
- BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
- const BIGNUM *mod, BN_CTX *ctx);
-
- BN_BLINDING *BN_BLINDING_new(BIGNUM *A,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_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);
- 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);
-
- /* 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)))
- BIGNUM *bn_expand2(BIGNUM *a, int words);
- BIGNUM *bn_dup_expand(const BIGNUM *a, int words);
-
- #define bn_fix_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);
- BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
- void bn_sqr_words(BN_ULONG *rp, const BN_ULONG *ap, int num);
- BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d);
- BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int num);
- BN_ULONG bn_sub_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int num);
-
- #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
-
- int BN_bntest_rand(BIGNUM *rnd, int bits, int top,int bottom);
-
- /* BEGIN ERROR CODES */
- /* The following lines are auto generated by the script mkerr.pl. Any changes
- * made after this point may be overwritten when the script is next run.
- */
- void ERR_load_BN_strings(void);
-
- /* Error codes for the BN functions. */
-
- /* Function codes. */
- #define BN_F_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_EXP 123
- #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_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_LSHIFT_QUICK 119
- #define BN_F_BN_MOD_MUL_RECIPROCAL 111
- #define BN_F_BN_MOD_SQRT 121
- #define BN_F_BN_MPI2BN 112
- #define BN_F_BN_NEW 113
- #define BN_F_BN_RAND 114
- #define BN_F_BN_RAND_RANGE 122
- #define BN_F_BN_USUB 115
-
- /* Reason codes. */
- #define BN_R_ARG2_LT_ARG3 100
- #define BN_R_BAD_RECIPROCAL 101
- #define BN_R_BIGNUM_TOO_LONG 114
- #define BN_R_CALLED_WITH_EVEN_MODULUS 102
- #define BN_R_DIV_BY_ZERO 103
- #define BN_R_ENCODING_ERROR 104
- #define BN_R_EXPAND_ON_STATIC_BIGNUM_DATA 105
- #define BN_R_INPUT_NOT_REDUCED 110
- #define BN_R_INVALID_LENGTH 106
- #define BN_R_INVALID_RANGE 115
- #define BN_R_NOT_A_SQUARE 111
- #define BN_R_NOT_INITIALIZED 107
- #define BN_R_NO_INVERSE 108
- #define BN_R_P_IS_NOT_PRIME 112
- #define BN_R_TOO_MANY_ITERATIONS 113
- #define BN_R_TOO_MANY_TEMPORARY_VARIABLES 109
-
- #ifdef __cplusplus
- }
- #endif
- #endif
-