Import OpenSSL 1.1.0f
This commit is contained in:
@@ -1,69 +1,20 @@
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/* rsa_pss.c */
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/*
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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* 2005.
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*/
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/* ====================================================================
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* Copyright (c) 2005 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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* Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include "internal/cryptlib.h"
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#include <openssl/bn.h>
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#include <openssl/rsa.h>
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#include <openssl/evp.h>
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#include <openssl/rand.h>
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#include <openssl/sha.h>
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#include "rsa_locl.h"
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static const unsigned char zeroes[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
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@@ -87,9 +38,12 @@ int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
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int hLen, maskedDBLen, MSBits, emLen;
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const unsigned char *H;
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unsigned char *DB = NULL;
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EVP_MD_CTX ctx;
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EVP_MD_CTX *ctx = EVP_MD_CTX_new();
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unsigned char H_[EVP_MAX_MD_SIZE];
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EVP_MD_CTX_init(&ctx);
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if (ctx == NULL)
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goto err;
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if (mgf1Hash == NULL)
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mgf1Hash = Hash;
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@@ -122,7 +76,11 @@ int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
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EM++;
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emLen--;
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}
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if (emLen < (hLen + sLen + 2)) { /* sLen can be small negative */
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if (emLen < hLen + 2) {
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RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE);
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goto err;
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}
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if (sLen > emLen - hLen - 2) { /* sLen can be small negative */
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RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE);
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goto err;
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}
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@@ -133,7 +91,7 @@ int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
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maskedDBLen = emLen - hLen - 1;
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H = EM + maskedDBLen;
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DB = OPENSSL_malloc(maskedDBLen);
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if (!DB) {
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if (DB == NULL) {
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RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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@@ -152,15 +110,15 @@ int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
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RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
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goto err;
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}
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if (!EVP_DigestInit_ex(&ctx, Hash, NULL)
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|| !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes)
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|| !EVP_DigestUpdate(&ctx, mHash, hLen))
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if (!EVP_DigestInit_ex(ctx, Hash, NULL)
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|| !EVP_DigestUpdate(ctx, zeroes, sizeof zeroes)
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|| !EVP_DigestUpdate(ctx, mHash, hLen))
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goto err;
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if (maskedDBLen - i) {
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if (!EVP_DigestUpdate(&ctx, DB + i, maskedDBLen - i))
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if (!EVP_DigestUpdate(ctx, DB + i, maskedDBLen - i))
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goto err;
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}
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if (!EVP_DigestFinal_ex(&ctx, H_, NULL))
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if (!EVP_DigestFinal_ex(ctx, H_, NULL))
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goto err;
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if (memcmp(H_, H, hLen)) {
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RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_BAD_SIGNATURE);
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@@ -169,9 +127,8 @@ int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
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ret = 1;
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err:
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if (DB)
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OPENSSL_free(DB);
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EVP_MD_CTX_cleanup(&ctx);
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OPENSSL_free(DB);
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EVP_MD_CTX_free(ctx);
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return ret;
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@@ -193,7 +150,7 @@ int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
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int ret = 0;
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int hLen, maskedDBLen, MSBits, emLen;
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unsigned char *H, *salt = NULL, *p;
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EVP_MD_CTX ctx;
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EVP_MD_CTX *ctx = NULL;
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if (mgf1Hash == NULL)
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mgf1Hash = Hash;
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@@ -222,16 +179,21 @@ int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
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*EM++ = 0;
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emLen--;
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}
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if (emLen < hLen + 2) {
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RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
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RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
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goto err;
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}
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if (sLen == -2) {
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sLen = emLen - hLen - 2;
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} else if (emLen < (hLen + sLen + 2)) {
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} else if (sLen > emLen - hLen - 2) {
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RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
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RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
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goto err;
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}
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if (sLen > 0) {
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salt = OPENSSL_malloc(sLen);
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if (!salt) {
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if (salt == NULL) {
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RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
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ERR_R_MALLOC_FAILURE);
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goto err;
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@@ -241,16 +203,17 @@ int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
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}
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maskedDBLen = emLen - hLen - 1;
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H = EM + maskedDBLen;
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EVP_MD_CTX_init(&ctx);
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if (!EVP_DigestInit_ex(&ctx, Hash, NULL)
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|| !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes)
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|| !EVP_DigestUpdate(&ctx, mHash, hLen))
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ctx = EVP_MD_CTX_new();
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if (ctx == NULL)
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goto err;
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if (sLen && !EVP_DigestUpdate(&ctx, salt, sLen))
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if (!EVP_DigestInit_ex(ctx, Hash, NULL)
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|| !EVP_DigestUpdate(ctx, zeroes, sizeof zeroes)
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|| !EVP_DigestUpdate(ctx, mHash, hLen))
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goto err;
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if (!EVP_DigestFinal_ex(&ctx, H, NULL))
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if (sLen && !EVP_DigestUpdate(ctx, salt, sLen))
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goto err;
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if (!EVP_DigestFinal_ex(ctx, H, NULL))
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goto err;
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EVP_MD_CTX_cleanup(&ctx);
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/* Generate dbMask in place then perform XOR on it */
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if (PKCS1_MGF1(EM, maskedDBLen, H, hLen, mgf1Hash))
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@@ -278,8 +241,8 @@ int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
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ret = 1;
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err:
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if (salt)
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OPENSSL_free(salt);
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EVP_MD_CTX_free(ctx);
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OPENSSL_free(salt);
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return ret;
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