--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/securityanddataprivacytools/securitytools/openssllib/import/inc/openssl/bn.h Mon Apr 19 11:11:16 2010 +0530
@@ -0,0 +1,550 @@
+/* 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_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 (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_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);
+
+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_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_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_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
+