diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bn/bn_mont.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/bn/bn_mont.c | 166 |
1 files changed, 145 insertions, 21 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_mont.c b/Cryptlib/OpenSSL/crypto/bn/bn_mont.c index 6d37279a..be95bd55 100644 --- a/Cryptlib/OpenSSL/crypto/bn/bn_mont.c +++ b/Cryptlib/OpenSSL/crypto/bn/bn_mont.c @@ -1,10 +1,112 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. +/* crypto/bn/bn_mont.c */ +/* Copyright (C) 1995-1998 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). * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html */ /* @@ -14,7 +116,8 @@ * sections 3.8 and 4.2 in http://security.ece.orst.edu/koc/papers/r01rsasw.pdf */ -#include "internal/cryptlib.h" +#include <stdio.h> +#include "cryptlib.h" #include "bn_lcl.h" #define MONT_WORD /* use the faster word-based algorithm */ @@ -94,15 +197,36 @@ static int BN_from_montgomery_word(BIGNUM *ret, BIGNUM *r, BN_MONT_CTX *mont) rp = r->d; /* clear the top words of T */ - i = max - r->top; - if (i) - memset(&rp[r->top], 0, sizeof(*rp) * i); +# if 1 + for (i = r->top; i < max; i++) /* memset? XXX */ + rp[i] = 0; +# else + memset(&(rp[r->top]), 0, (max - r->top) * sizeof(BN_ULONG)); +# endif r->top = max; n0 = mont->n0[0]; +# ifdef BN_COUNT + fprintf(stderr, "word BN_from_montgomery_word %d * %d\n", nl, nl); +# endif for (carry = 0, i = 0; i < nl; i++, rp++) { +# ifdef __TANDEM + { + long long t1; + long long t2; + long long t3; + t1 = rp[0] * (n0 & 0177777); + t2 = 037777600000l; + t2 = n0 & t2; + t3 = rp[0] & 0177777; + t2 = (t3 * t2) & BN_MASK2; + t1 = t1 + t2; + v = bn_mul_add_words(rp, np, nl, (BN_ULONG)t1); + } +# else v = bn_mul_add_words(rp, np, nl, (rp[0] * n0) & BN_MASK2); +# endif v = (v + carry + rp[nl]) & BN_MASK2; carry |= (v != rp[nl]); carry &= (v <= rp[nl]); @@ -214,7 +338,7 @@ BN_MONT_CTX *BN_MONT_CTX_new(void) { BN_MONT_CTX *ret; - if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL) + if ((ret = (BN_MONT_CTX *)OPENSSL_malloc(sizeof(BN_MONT_CTX))) == NULL) return (NULL); BN_MONT_CTX_init(ret); @@ -225,9 +349,9 @@ BN_MONT_CTX *BN_MONT_CTX_new(void) void BN_MONT_CTX_init(BN_MONT_CTX *ctx) { ctx->ri = 0; - bn_init(&(ctx->RR)); - bn_init(&(ctx->N)); - bn_init(&(ctx->Ni)); + BN_init(&(ctx->RR)); + BN_init(&(ctx->N)); + BN_init(&(ctx->Ni)); ctx->n0[0] = ctx->n0[1] = 0; ctx->flags = 0; } @@ -265,7 +389,7 @@ int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx) BIGNUM tmod; BN_ULONG buf[2]; - bn_init(&tmod); + BN_init(&tmod); tmod.d = buf; tmod.dmax = 2; tmod.neg = 0; @@ -395,14 +519,14 @@ BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, BN_MONT_CTX *from) return (to); } -BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock, +BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock, const BIGNUM *mod, BN_CTX *ctx) { BN_MONT_CTX *ret; - CRYPTO_THREAD_read_lock(lock); + CRYPTO_r_lock(lock); ret = *pmont; - CRYPTO_THREAD_unlock(lock); + CRYPTO_r_unlock(lock); if (ret) return ret; @@ -415,7 +539,7 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock, * (the losers throw away the work they've done). */ ret = BN_MONT_CTX_new(); - if (ret == NULL) + if (!ret) return NULL; if (!BN_MONT_CTX_set(ret, mod, ctx)) { BN_MONT_CTX_free(ret); @@ -423,12 +547,12 @@ BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock, } /* The locked compare-and-set, after the local work is done. */ - CRYPTO_THREAD_write_lock(lock); + CRYPTO_w_lock(lock); if (*pmont) { BN_MONT_CTX_free(ret); ret = *pmont; } else *pmont = ret; - CRYPTO_THREAD_unlock(lock); + CRYPTO_w_unlock(lock); return ret; } |