| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /* |
| * XSEC |
| * |
| * OpenSSLCryptoHashSHA1 := OpenSSL Implementation of SHA1 |
| * |
| * Author(s): Berin Lautenbach |
| * |
| * $Id$ |
| * |
| */ |
| |
| #include <xsec/framework/XSECDefs.hpp> |
| #if defined (XSEC_HAVE_OPENSSL) |
| |
| #include <xsec/enc/OpenSSL/OpenSSLCryptoHash.hpp> |
| #include <xsec/enc/XSECCryptoException.hpp> |
| |
| #include <memory.h> |
| |
| // Constructors/Destructors |
| |
| OpenSSLCryptoHash::OpenSSLCryptoHash(HashType alg) : |
| #if (OPENSSL_VERSION_NUMBER < 0x10100000L) |
| mp_mdctx(&m_mdctx_store) |
| #else |
| mp_mdctx(EVP_MD_CTX_new()) |
| #endif |
| , m_mdLen(0) |
| { |
| if (!mp_mdctx) |
| throw XSECCryptoException(XSECCryptoException::ECError, "OpenSSL:CryptoCryptoHash - cannot allocate contexts"); |
| |
| |
| switch (alg) { |
| |
| case (XSECCryptoHash::HASH_SHA1) : |
| |
| mp_md = EVP_get_digestbyname("SHA1"); |
| break; |
| |
| case (XSECCryptoHash::HASH_MD5) : |
| |
| mp_md = EVP_get_digestbyname("MD5"); |
| break; |
| |
| case (XSECCryptoHash::HASH_SHA224) : |
| |
| mp_md = EVP_get_digestbyname("SHA224"); |
| if (mp_md == NULL) { |
| throw XSECCryptoException(XSECCryptoException::MDError, |
| "OpenSSL:Hash - SHA224 not supported by this version of OpenSSL"); |
| } |
| |
| break; |
| |
| case (XSECCryptoHash::HASH_SHA256) : |
| |
| mp_md = EVP_get_digestbyname("SHA256"); |
| if (mp_md == NULL) { |
| throw XSECCryptoException(XSECCryptoException::MDError, |
| "OpenSSL:Hash - SHA256 not supported by this version of OpenSSL"); |
| } |
| |
| break; |
| |
| case (XSECCryptoHash::HASH_SHA384) : |
| |
| mp_md = EVP_get_digestbyname("SHA384"); |
| if (mp_md == NULL) { |
| throw XSECCryptoException(XSECCryptoException::MDError, |
| "OpenSSL:Hash - SHA384 not supported by this version of OpenSSL"); |
| } |
| |
| break; |
| |
| case (XSECCryptoHash::HASH_SHA512) : |
| |
| mp_md = EVP_get_digestbyname("SHA512"); |
| if (mp_md == NULL) { |
| throw XSECCryptoException(XSECCryptoException::MDError, |
| "OpenSSL:Hash - SHA512 not supported by this version of OpenSSL"); |
| } |
| |
| break; |
| |
| default : |
| |
| mp_md = NULL; |
| |
| } |
| |
| if(!mp_md) { |
| |
| throw XSECCryptoException(XSECCryptoException::MDError, |
| "OpenSSL:Hash - Error loading Message Digest"); |
| } |
| |
| EVP_DigestInit(mp_mdctx, mp_md); |
| m_hashType = alg; |
| |
| } |
| |
| |
| OpenSSLCryptoHash::~OpenSSLCryptoHash() { |
| #if (OPENSSL_VERSION_NUMBER < 0x10100000L) |
| EVP_MD_CTX_cleanup(mp_mdctx); |
| #else |
| EVP_MD_CTX_free(mp_mdctx); |
| #endif |
| |
| } |
| |
| |
| |
| // Hashing Activities |
| void OpenSSLCryptoHash::reset(void) { |
| |
| #if (OPENSSL_VERSION_NUMBER < 0x10100000L) |
| EVP_MD_CTX_cleanup(mp_mdctx); |
| #endif |
| EVP_DigestInit(mp_mdctx, mp_md); |
| |
| } |
| |
| void OpenSSLCryptoHash::hash(unsigned char * data, |
| unsigned int length) { |
| |
| EVP_DigestUpdate(mp_mdctx, data, length); |
| |
| } |
| unsigned int OpenSSLCryptoHash::finish(unsigned char * hash, |
| unsigned int maxLength) { |
| |
| unsigned int retLen; |
| |
| // Finish up and copy out hash, returning the length |
| |
| EVP_DigestFinal(mp_mdctx, m_mdValue, &m_mdLen); |
| |
| // Copy to output buffer |
| |
| retLen = (maxLength > m_mdLen ? m_mdLen : maxLength); |
| memcpy(hash, m_mdValue, retLen); |
| |
| return retLen; |
| |
| } |
| |
| // Get information |
| |
| XSECCryptoHash::HashType OpenSSLCryptoHash::getHashType(void) const { |
| |
| return m_hashType; // This could be any kind of hash |
| |
| } |
| |
| #endif /* XSEC_HAVE_OPENSSL */ |