- /* 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.]
- */
- /* ====================================================================
- * 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 OPENSSL_HEADER_BN_INTERNAL_H
- #define OPENSSL_HEADER_BN_INTERNAL_H
-
- #include <openssl/base.h>
-
- #if defined(OPENSSL_X86_64) && defined(_MSC_VER)
- OPENSSL_MSVC_PRAGMA(warning(push, 3))
- #include <intrin.h>
- OPENSSL_MSVC_PRAGMA(warning(pop))
- #pragma intrinsic(__umulh, _umul128)
- #endif
-
- #include "../internal.h"
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- /* bn_expand acts the same as |bn_wexpand|, but takes a number of bits rather
- * than a number of words. */
- BIGNUM *bn_expand(BIGNUM *bn, size_t bits);
-
- #if defined(OPENSSL_64_BIT)
-
- #if !defined(_MSC_VER)
- /* MSVC doesn't support two-word integers on 64-bit. */
- #define BN_ULLONG uint128_t
- #endif
-
- #define BN_BITS2 64
- #define BN_BYTES 8
- #define BN_BITS4 32
- #define BN_MASK2 (0xffffffffffffffffUL)
- #define BN_MASK2l (0xffffffffUL)
- #define BN_MASK2h (0xffffffff00000000UL)
- #define BN_MASK2h1 (0xffffffff80000000UL)
- #define BN_MONT_CTX_N0_LIMBS 1
- #define BN_TBIT (0x8000000000000000UL)
- #define BN_DEC_CONV (10000000000000000000UL)
- #define BN_DEC_NUM 19
- #define TOBN(hi, lo) ((BN_ULONG)(hi) << 32 | (lo))
-
- #elif defined(OPENSSL_32_BIT)
-
- #define BN_ULLONG uint64_t
- #define BN_BITS2 32
- #define BN_BYTES 4
- #define BN_BITS4 16
- #define BN_MASK2 (0xffffffffUL)
- #define BN_MASK2l (0xffffUL)
- #define BN_MASK2h1 (0xffff8000UL)
- #define BN_MASK2h (0xffff0000UL)
- /* On some 32-bit platforms, Montgomery multiplication is done using 64-bit
- * arithmetic with SIMD instructions. On such platforms, |BN_MONT_CTX::n0|
- * needs to be two words long. Only certain 32-bit platforms actually make use
- * of n0[1] and shorter R value would suffice for the others. However,
- * currently only the assembly files know which is which. */
- #define BN_MONT_CTX_N0_LIMBS 2
- #define BN_TBIT (0x80000000UL)
- #define BN_DEC_CONV (1000000000UL)
- #define BN_DEC_NUM 9
- #define TOBN(hi, lo) (lo), (hi)
-
- #else
- #error "Must define either OPENSSL_32_BIT or OPENSSL_64_BIT"
- #endif
-
-
- #define STATIC_BIGNUM(x) \
- { \
- (BN_ULONG *)(x), sizeof(x) / sizeof(BN_ULONG), \
- sizeof(x) / sizeof(BN_ULONG), 0, BN_FLG_STATIC_DATA \
- }
-
- #if defined(BN_ULLONG)
- #define Lw(t) (((BN_ULONG)(t))&BN_MASK2)
- #define Hw(t) (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2)
- #endif
-
- /* bn_set_words sets |bn| to the value encoded in the |num| words in |words|,
- * least significant word first. */
- int bn_set_words(BIGNUM *bn, const BN_ULONG *words, size_t num);
-
- 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_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);
-
- void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b);
- void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b);
- void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a);
- void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a);
-
- /* bn_cmp_words returns a value less than, equal to or greater than zero if
- * the, length |n|, array |a| is less than, equal to or greater than |b|. */
- int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n);
-
- /* bn_cmp_words returns a value less than, equal to or greater than zero if the
- * array |a| is less than, equal to or greater than |b|. The arrays can be of
- * different lengths: |cl| gives the minimum of the two lengths and |dl| gives
- * the length of |a| minus the length of |b|. */
- int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b, int cl, int dl);
-
- int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
- const BN_ULONG *np, const BN_ULONG *n0, int num);
-
- uint64_t bn_mont_n0(const BIGNUM *n);
- int bn_mod_exp_base_2_vartime(BIGNUM *r, unsigned p, const BIGNUM *n);
-
- #if defined(OPENSSL_X86_64) && defined(_MSC_VER)
- #define BN_UMULT_LOHI(low, high, a, b) ((low) = _umul128((a), (b), &(high)))
- #endif
-
- #if !defined(BN_ULLONG) && !defined(BN_UMULT_LOHI)
- #error "Either BN_ULLONG or BN_UMULT_LOHI must be defined on every platform."
- #endif
-
- /* bn_mod_inverse_prime sets |out| to the modular inverse of |a| modulo |p|,
- * computed with Fermat's Little Theorem. It returns one on success and zero on
- * error. If |mont_p| is NULL, one will be computed temporarily. */
- int bn_mod_inverse_prime(BIGNUM *out, const BIGNUM *a, const BIGNUM *p,
- BN_CTX *ctx, const BN_MONT_CTX *mont_p);
-
- /* bn_mod_inverse_secret_prime behaves like |bn_mod_inverse_prime| but uses
- * |BN_mod_exp_mont_consttime| instead of |BN_mod_exp_mont| in hopes of
- * protecting the exponent. */
- int bn_mod_inverse_secret_prime(BIGNUM *out, const BIGNUM *a, const BIGNUM *p,
- BN_CTX *ctx, const BN_MONT_CTX *mont_p);
-
-
- #if defined(__cplusplus)
- } /* extern C */
- #endif
-
- #endif /* OPENSSL_HEADER_BN_INTERNAL_H */
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