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author | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
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committer | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
commit | b6f94dbeacfc6f0a507413096189304c58dbe66c (patch) | |
tree | bce8c7db22209078618294c51d95a0c033aec7d9 /Cryptlib/OpenSSL/crypto/bn/bn_blind.c | |
parent | 25f7fd1fb389a5f6356f353d16c5ead80dac6bbc (diff) | |
download | efi-boot-shim-upstream/13_git1505328970.9c1c35c5.tar.gz efi-boot-shim-upstream/13_git1505328970.9c1c35c5.zip |
New upstream version 13~git1505328970.9c1c35c5upstream/13_git1505328970.9c1c35c5
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bn/bn_blind.c')
-rw-r--r-- | Cryptlib/OpenSSL/crypto/bn/bn_blind.c | 196 |
1 files changed, 146 insertions, 50 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_blind.c b/Cryptlib/OpenSSL/crypto/bn/bn_blind.c index 24d13830..d448daa3 100644 --- a/Cryptlib/OpenSSL/crypto/bn/bn_blind.c +++ b/Cryptlib/OpenSSL/crypto/bn/bn_blind.c @@ -1,14 +1,116 @@ -/* - * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved. +/* crypto/bn/bn_blind.c */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. * - * 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 + * 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 (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.] */ -#include <openssl/opensslconf.h> -#include "internal/cryptlib.h" +#include <stdio.h> +#include "cryptlib.h" #include "bn_lcl.h" #define BN_BLINDING_COUNTER 32 @@ -18,13 +120,16 @@ struct bn_blinding_st { BIGNUM *Ai; BIGNUM *e; BIGNUM *mod; /* just a reference */ - CRYPTO_THREAD_ID tid; +#ifndef OPENSSL_NO_DEPRECATED + 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 */ +#endif + CRYPTO_THREADID tid; int counter; unsigned long flags; BN_MONT_CTX *m_ctx; int (*bn_mod_exp) (BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); - CRYPTO_RWLOCK *lock; }; BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod) @@ -33,25 +138,15 @@ BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod) bn_check_top(mod); - if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) { + if ((ret = (BN_BLINDING *)OPENSSL_malloc(sizeof(BN_BLINDING))) == NULL) { BNerr(BN_F_BN_BLINDING_NEW, ERR_R_MALLOC_FAILURE); - return NULL; + return (NULL); } - - ret->lock = CRYPTO_THREAD_lock_new(); - if (ret->lock == NULL) { - BNerr(BN_F_BN_BLINDING_NEW, ERR_R_MALLOC_FAILURE); - OPENSSL_free(ret); - return NULL; - } - - BN_BLINDING_set_current_thread(ret); - + memset(ret, 0, sizeof(BN_BLINDING)); if (A != NULL) { if ((ret->A = BN_dup(A)) == NULL) goto err; } - if (Ai != NULL) { if ((ret->Ai = BN_dup(Ai)) == NULL) goto err; @@ -60,7 +155,6 @@ BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod) /* save a copy of mod in the BN_BLINDING structure */ if ((ret->mod = BN_dup(mod)) == NULL) goto err; - if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0) BN_set_flags(ret->mod, BN_FLG_CONSTTIME); @@ -70,12 +164,12 @@ BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod) * use. */ ret->counter = -1; - - return ret; - + CRYPTO_THREADID_current(&ret->tid); + return (ret); err: - BN_BLINDING_free(ret); - return NULL; + if (ret != NULL) + BN_BLINDING_free(ret); + return (NULL); } void BN_BLINDING_free(BN_BLINDING *r) @@ -83,11 +177,14 @@ void BN_BLINDING_free(BN_BLINDING *r) if (r == NULL) return; - BN_free(r->A); - BN_free(r->Ai); - BN_free(r->e); - BN_free(r->mod); - CRYPTO_THREAD_lock_free(r->lock); + if (r->A != NULL) + BN_free(r->A); + if (r->Ai != NULL) + BN_free(r->Ai); + if (r->e != NULL) + BN_free(r->e); + if (r->mod != NULL) + BN_free(r->mod); OPENSSL_free(r); } @@ -181,24 +278,21 @@ int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, return (ret); } -int BN_BLINDING_is_current_thread(BN_BLINDING *b) -{ - return CRYPTO_THREAD_compare_id(CRYPTO_THREAD_get_current_id(), b->tid); -} - -void BN_BLINDING_set_current_thread(BN_BLINDING *b) +#ifndef OPENSSL_NO_DEPRECATED +unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *b) { - b->tid = CRYPTO_THREAD_get_current_id(); + return b->thread_id; } -int BN_BLINDING_lock(BN_BLINDING *b) +void BN_BLINDING_set_thread_id(BN_BLINDING *b, unsigned long n) { - return CRYPTO_THREAD_write_lock(b->lock); + b->thread_id = n; } +#endif -int BN_BLINDING_unlock(BN_BLINDING *b) +CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *b) { - return CRYPTO_THREAD_unlock(b->lock); + return &b->tid; } unsigned long BN_BLINDING_get_flags(const BN_BLINDING *b) @@ -238,7 +332,8 @@ BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b, goto err; if (e != NULL) { - BN_free(ret->e); + if (ret->e != NULL) + BN_free(ret->e); ret->e = BN_dup(e); } if (ret->e == NULL) @@ -250,19 +345,20 @@ BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b, ret->m_ctx = m_ctx; do { - int rv; if (!BN_rand_range(ret->A, ret->mod)) goto err; - if (!int_bn_mod_inverse(ret->Ai, ret->A, ret->mod, ctx, &rv)) { + if (BN_mod_inverse(ret->Ai, ret->A, ret->mod, ctx) == NULL) { /* * this should almost never happen for good RSA keys */ - if (rv) { + unsigned long error = ERR_peek_last_error(); + if (ERR_GET_REASON(error) == BN_R_NO_INVERSE) { if (retry_counter-- == 0) { BNerr(BN_F_BN_BLINDING_CREATE_PARAM, BN_R_TOO_MANY_ITERATIONS); goto err; } + ERR_clear_error(); } else goto err; } else @@ -280,7 +376,7 @@ BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b, return ret; err: - if (b == NULL) { + if (b == NULL && ret != NULL) { BN_BLINDING_free(ret); ret = NULL; } |