diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c | 145 |
1 files changed, 107 insertions, 38 deletions
diff --git a/Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c b/Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c index 9cd733b2..5c416b53 100644 --- a/Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c +++ b/Cryptlib/OpenSSL/crypto/rsa/rsa_crpt.c @@ -1,24 +1,71 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. +/* crypto/rsa/rsa_lib.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * 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 + * 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 <stdio.h> #include <openssl/crypto.h> -#include "internal/cryptlib.h" +#include "cryptlib.h" #include <openssl/lhash.h> -#include "internal/bn_int.h" +#include <openssl/bn.h> +#include <openssl/rsa.h> #include <openssl/rand.h> -#include "rsa_locl.h" - -int RSA_bits(const RSA *r) -{ - return (BN_num_bits(r->n)); -} +#ifndef OPENSSL_NO_ENGINE +# include <openssl/engine.h> +#endif int RSA_size(const RSA *r) { @@ -28,24 +75,52 @@ int RSA_size(const RSA *r) int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to, RSA *rsa, int padding) { +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) + && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) { + RSAerr(RSA_F_RSA_PUBLIC_ENCRYPT, RSA_R_NON_FIPS_RSA_METHOD); + return -1; + } +#endif return (rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding)); } int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to, RSA *rsa, int padding) { +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) + && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) { + RSAerr(RSA_F_RSA_PRIVATE_ENCRYPT, RSA_R_NON_FIPS_RSA_METHOD); + return -1; + } +#endif return (rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding)); } int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to, RSA *rsa, int padding) { +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) + && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) { + RSAerr(RSA_F_RSA_PRIVATE_DECRYPT, RSA_R_NON_FIPS_RSA_METHOD); + return -1; + } +#endif return (rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding)); } int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to, RSA *rsa, int padding) { +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) + && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) { + RSAerr(RSA_F_RSA_PUBLIC_DECRYPT, RSA_R_NON_FIPS_RSA_METHOD); + return -1; + } +#endif return (rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding)); } @@ -56,8 +131,10 @@ int RSA_flags(const RSA *r) void RSA_blinding_off(RSA *rsa) { - BN_BLINDING_free(rsa->blinding); - rsa->blinding = NULL; + if (rsa->blinding != NULL) { + BN_BLINDING_free(rsa->blinding); + rsa->blinding = NULL; + } rsa->flags &= ~RSA_FLAG_BLINDING; rsa->flags |= RSA_FLAG_NO_BLINDING; } @@ -110,7 +187,8 @@ static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p, BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx) { - BIGNUM *e; + BIGNUM local_n; + BIGNUM *e, *n; BN_CTX *ctx; BN_BLINDING *ret = NULL; @@ -136,42 +214,33 @@ BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx) } else e = rsa->e; - if ((RAND_status() == 0) && rsa->d != NULL - && bn_get_words(rsa->d) != NULL) { + if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL) { /* * if PRNG is not properly seeded, resort to secret exponent as * unpredictable seed */ - RAND_add(bn_get_words(rsa->d), bn_get_dmax(rsa->d) * sizeof(BN_ULONG), - 0.0); + RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0); } - { - BIGNUM *n = BN_new(); - - if (n == NULL) { - RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE); - goto err; - } + if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) { + /* Set BN_FLG_CONSTTIME flag */ + n = &local_n; BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME); + } else + n = rsa->n; - ret = BN_BLINDING_create_param(NULL, e, n, ctx, rsa->meth->bn_mod_exp, - rsa->_method_mod_n); - /* We MUST free n before any further use of rsa->n */ - BN_free(n); - } + ret = BN_BLINDING_create_param(NULL, e, n, ctx, + rsa->meth->bn_mod_exp, rsa->_method_mod_n); if (ret == NULL) { RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB); goto err; } - - BN_BLINDING_set_current_thread(ret); - + CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret)); err: BN_CTX_end(ctx); - if (ctx != in_ctx) + if (in_ctx == NULL) BN_CTX_free(ctx); - if (e != rsa->e) + if (rsa->e == NULL) BN_free(e); return ret; |