diff options
author | Arne Schwabe <arne@rfc2549.org> | 2015-04-15 00:17:26 +0200 |
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committer | Arne Schwabe <arne@rfc2549.org> | 2015-04-15 00:20:23 +0200 |
commit | c3ae4aaac9f0b168aed063d3e86c5196608eaba1 (patch) | |
tree | 1a18e7d8751d4dd3682d82d12c8441b335112984 /main/openssl/crypto/rsa/rsa_pss.c | |
parent | 5e42114d22faefe7c272b1b498fdf5640da494c7 (diff) |
Move more to git, add submodules, fix build script, change hgignore to gitignore
Diffstat (limited to 'main/openssl/crypto/rsa/rsa_pss.c')
m--------- | main/openssl | 0 | ||||
-rw-r--r-- | main/openssl/crypto/rsa/rsa_pss.c | 300 |
2 files changed, 0 insertions, 300 deletions
diff --git a/main/openssl b/main/openssl new file mode 160000 +Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51 diff --git a/main/openssl/crypto/rsa/rsa_pss.c b/main/openssl/crypto/rsa/rsa_pss.c deleted file mode 100644 index 5f9f533d..00000000 --- a/main/openssl/crypto/rsa/rsa_pss.c +++ /dev/null @@ -1,300 +0,0 @@ -/* rsa_pss.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 2005. - */ -/* ==================================================================== - * Copyright (c) 2005 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 - * licensing@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). - * - */ - -#include <stdio.h> -#include "cryptlib.h" -#include <openssl/bn.h> -#include <openssl/rsa.h> -#include <openssl/evp.h> -#include <openssl/rand.h> -#include <openssl/sha.h> - -static const unsigned char zeroes[] = {0,0,0,0,0,0,0,0}; - -#if defined(_MSC_VER) && defined(_ARM_) -#pragma optimize("g", off) -#endif - -int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash, - const EVP_MD *Hash, const unsigned char *EM, int sLen) - { - return RSA_verify_PKCS1_PSS_mgf1(rsa, mHash, Hash, NULL, EM, sLen); - } - -int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash, - const EVP_MD *Hash, const EVP_MD *mgf1Hash, - const unsigned char *EM, int sLen) - { - int i; - int ret = 0; - int hLen, maskedDBLen, MSBits, emLen; - const unsigned char *H; - unsigned char *DB = NULL; - EVP_MD_CTX ctx; - unsigned char H_[EVP_MAX_MD_SIZE]; - EVP_MD_CTX_init(&ctx); - - if (mgf1Hash == NULL) - mgf1Hash = Hash; - - hLen = EVP_MD_size(Hash); - if (hLen < 0) - goto err; - /* - * Negative sLen has special meanings: - * -1 sLen == hLen - * -2 salt length is autorecovered from signature - * -N reserved - */ - if (sLen == -1) sLen = hLen; - else if (sLen == -2) sLen = -2; - else if (sLen < -2) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED); - goto err; - } - - MSBits = (BN_num_bits(rsa->n) - 1) & 0x7; - emLen = RSA_size(rsa); - if (EM[0] & (0xFF << MSBits)) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_FIRST_OCTET_INVALID); - goto err; - } - if (MSBits == 0) - { - EM++; - emLen--; - } - if (emLen < (hLen + sLen + 2)) /* sLen can be small negative */ - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE); - goto err; - } - if (EM[emLen - 1] != 0xbc) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_LAST_OCTET_INVALID); - goto err; - } - maskedDBLen = emLen - hLen - 1; - H = EM + maskedDBLen; - DB = OPENSSL_malloc(maskedDBLen); - if (!DB) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, ERR_R_MALLOC_FAILURE); - goto err; - } - if (PKCS1_MGF1(DB, maskedDBLen, H, hLen, mgf1Hash) < 0) - goto err; - for (i = 0; i < maskedDBLen; i++) - DB[i] ^= EM[i]; - if (MSBits) - DB[0] &= 0xFF >> (8 - MSBits); - for (i = 0; DB[i] == 0 && i < (maskedDBLen-1); i++) ; - if (DB[i++] != 0x1) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_RECOVERY_FAILED); - goto err; - } - if (sLen >= 0 && (maskedDBLen - i) != sLen) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED); - goto err; - } - if (!EVP_DigestInit_ex(&ctx, Hash, NULL) - || !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes) - || !EVP_DigestUpdate(&ctx, mHash, hLen)) - goto err; - if (maskedDBLen - i) - { - if (!EVP_DigestUpdate(&ctx, DB + i, maskedDBLen - i)) - goto err; - } - if (!EVP_DigestFinal_ex(&ctx, H_, NULL)) - goto err; - if (memcmp(H_, H, hLen)) - { - RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_BAD_SIGNATURE); - ret = 0; - } - else - ret = 1; - - err: - if (DB) - OPENSSL_free(DB); - EVP_MD_CTX_cleanup(&ctx); - - return ret; - - } - -int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM, - const unsigned char *mHash, - const EVP_MD *Hash, int sLen) - { - return RSA_padding_add_PKCS1_PSS_mgf1(rsa, EM, mHash, Hash, NULL, sLen); - } - -int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM, - const unsigned char *mHash, - const EVP_MD *Hash, const EVP_MD *mgf1Hash, int sLen) - { - int i; - int ret = 0; - int hLen, maskedDBLen, MSBits, emLen; - unsigned char *H, *salt = NULL, *p; - EVP_MD_CTX ctx; - - if (mgf1Hash == NULL) - mgf1Hash = Hash; - - hLen = EVP_MD_size(Hash); - if (hLen < 0) - goto err; - /* - * Negative sLen has special meanings: - * -1 sLen == hLen - * -2 salt length is maximized - * -N reserved - */ - if (sLen == -1) sLen = hLen; - else if (sLen == -2) sLen = -2; - else if (sLen < -2) - { - RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED); - goto err; - } - - MSBits = (BN_num_bits(rsa->n) - 1) & 0x7; - emLen = RSA_size(rsa); - if (MSBits == 0) - { - *EM++ = 0; - emLen--; - } - if (sLen == -2) - { - sLen = emLen - hLen - 2; - } - else if (emLen < (hLen + sLen + 2)) - { - RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE); - goto err; - } - if (sLen > 0) - { - salt = OPENSSL_malloc(sLen); - if (!salt) - { - RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,ERR_R_MALLOC_FAILURE); - goto err; - } - if (RAND_bytes(salt, sLen) <= 0) - goto err; - } - maskedDBLen = emLen - hLen - 1; - H = EM + maskedDBLen; - EVP_MD_CTX_init(&ctx); - if (!EVP_DigestInit_ex(&ctx, Hash, NULL) - || !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes) - || !EVP_DigestUpdate(&ctx, mHash, hLen)) - goto err; - if (sLen && !EVP_DigestUpdate(&ctx, salt, sLen)) - goto err; - if (!EVP_DigestFinal_ex(&ctx, H, NULL)) - goto err; - EVP_MD_CTX_cleanup(&ctx); - - /* Generate dbMask in place then perform XOR on it */ - if (PKCS1_MGF1(EM, maskedDBLen, H, hLen, mgf1Hash)) - goto err; - - p = EM; - - /* Initial PS XORs with all zeroes which is a NOP so just update - * pointer. Note from a test above this value is guaranteed to - * be non-negative. - */ - p += emLen - sLen - hLen - 2; - *p++ ^= 0x1; - if (sLen > 0) - { - for (i = 0; i < sLen; i++) - *p++ ^= salt[i]; - } - if (MSBits) - EM[0] &= 0xFF >> (8 - MSBits); - - /* H is already in place so just set final 0xbc */ - - EM[emLen - 1] = 0xbc; - - ret = 1; - - err: - if (salt) - OPENSSL_free(salt); - - return ret; - - } - -#if defined(_MSC_VER) -#pragma optimize("",on) -#endif |