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Diffstat (limited to 'src/crypto/bn/internal.h')
| -rw-r--r-- | src/crypto/bn/internal.h | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/src/crypto/bn/internal.h b/src/crypto/bn/internal.h new file mode 100644 index 0000000..d421cf3 --- /dev/null +++ b/src/crypto/bn/internal.h @@ -0,0 +1,297 @@ +/* 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> + +#include <inttypes.h> + +#if defined(OPENSSL_X86_64) && defined(_MSC_VER) && _MSC_VER >= 1400 +#include <intrin.h> +#pragma intrinsic(__umulh, _umul128) +#endif + +#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, unsigned bits); + +#if defined(OPENSSL_64_BIT) + +#if !defined(_MSC_VER) +/* MSVC doesn't support two-word integers on 64-bit. */ +#define BN_LLONG __int128_t +#define BN_ULLONG __uint128_t +#endif + +#define BN_BITS 128 +#define BN_BITS2 64 +#define BN_BYTES 8 +#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 "%" PRIu64 +#define BN_DEC_FMT2 "%019" PRIu64 +#define BN_DEC_NUM 19 +#define BN_HEX_FMT1 "%" PRIx64 + +#elif defined(OPENSSL_32_BIT) + +#define BN_LLONG int64_t +#define BN_ULLONG uint64_t +#define BN_MASK (0xffffffffffffffffLL) +#define BN_BITS 64 +#define BN_BITS2 32 +#define BN_BYTES 4 +#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 "%" PRIu32 +#define BN_DEC_FMT2 "%09" PRIu32 +#define BN_DEC_NUM 9 +#define BN_HEX_FMT1 "%" PRIx32 + +#else +#error "Must define either OPENSSL_32_BIT or OPENSSL_64_BIT" +#endif + +/* Pentium pro 16,16,16,32,64 */ +/* Alpha 16,16,16,16.64 */ +#define BN_MULL_SIZE_NORMAL (16) /* 32 */ +#define BN_MUL_RECURSIVE_SIZE_NORMAL (16) /* 32 less than */ +#define BN_SQR_RECURSIVE_SIZE_NORMAL (16) /* 32 */ +#define BN_MUL_LOW_RECURSIVE_SIZE_NORMAL (32) /* 32 */ +#define BN_MONT_CTX_SET_SIZE_WORD (64) /* 32 */ + +#if defined(BN_LLONG) +#define Lw(t) (((BN_ULONG)(t))&BN_MASK2) +#define Hw(t) (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2) +#endif + +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); + +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); + +#if !defined(BN_LLONG) + +#define LBITS(a) ((a) & BN_MASK2l) +#define HBITS(a) (((a) >> BN_BITS4) & BN_MASK2l) +#define L2HBITS(a) (((a) << BN_BITS4) & BN_MASK2) + +#define LLBITS(a) ((a) & BN_MASKl) +#define LHBITS(a) (((a) >> BN_BITS2) & BN_MASKl) +#define LL2HBITS(a) ((BN_ULLONG)((a) & BN_MASKl) << BN_BITS2) + +#define mul64(l, h, bl, bh) \ + { \ + BN_ULONG m, m1, lt, ht; \ + \ + lt = l; \ + ht = h; \ + m = (bh) * (lt); \ + lt = (bl) * (lt); \ + m1 = (bl) * (ht); \ + ht = (bh) * (ht); \ + m = (m + m1) & BN_MASK2; \ + if (m < m1) \ + ht += L2HBITS((BN_ULONG)1); \ + ht += HBITS(m); \ + m1 = L2HBITS(m); \ + lt = (lt + m1) & BN_MASK2; \ + if (lt < m1) \ + ht++; \ + (l) = lt; \ + (h) = ht; \ + } + +#endif /* !defined(BN_LLONG) */ + +#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_X86_64) +# if defined(__GNUC__) && __GNUC__ >= 2 +# define BN_UMULT_HIGH(a,b) ({ \ + register BN_ULONG ret,discard; \ + __asm__ ("mulq %3" \ + : "=a"(discard),"=d"(ret) \ + : "a"(a), "g"(b) \ + : "cc"); \ + ret; }) +# define BN_UMULT_LOHI(low,high,a,b) \ + __asm__ ("mulq %3" \ + : "=a"(low),"=d"(high) \ + : "a"(a),"g"(b) \ + : "cc"); +# elif defined(_MSC_VER) && _MSC_VER >= 1400 +# define BN_UMULT_HIGH(a, b) __umulh((a), (b)) +# define BN_UMULT_LOHI(low, high, a, b) ((low) = _umul128((a), (b), &(high))) +# endif +#elif !defined(OPENSSL_NO_ASM) && defined(OPENSSL_AARCH64) +# if defined(__GNUC__) && __GNUC__>=2 +# define BN_UMULT_HIGH(a,b) ({ \ + register BN_ULONG ret; \ + __asm__ ("umulh %0,%1,%2" \ + : "=r"(ret) \ + : "r"(a), "r"(b)); \ + ret; }) +# endif +#endif + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_BN_INTERNAL_H */ |