| NingSun | 0c89b3c | 2018-02-08 08:34:03 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2010 SURFnet bv |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 16 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 18 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| 20 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 21 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| 22 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 23 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 24 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
| 27 | /***************************************************************************** |
| 28 | OSSLEVPHashAlgorithm.h |
| 29 | |
| 30 | Base class for OpenSSL hash algorithm classes |
| 31 | *****************************************************************************/ |
| 32 | |
| 33 | #ifndef _SOFTHSM_V2_OSSLEVPHASHALGORITHM_H |
| 34 | #define _SOFTHSM_V2_OSSLEVPHASHALGORITHM_H |
| 35 | |
| 36 | #include "config.h" |
| 37 | #include "HashAlgorithm.h" |
| 38 | #include <openssl/evp.h> |
| 39 | |
| 40 | class OSSLEVPHashAlgorithm : public HashAlgorithm |
| 41 | { |
| 42 | public: |
| 43 | // Base constructors |
| 44 | OSSLEVPHashAlgorithm() : HashAlgorithm() { |
| 45 | curCTX = NULL; |
| 46 | } |
| 47 | |
| 48 | // Destructor |
| 49 | ~OSSLEVPHashAlgorithm(); |
| 50 | |
| 51 | // Hashing functions |
| 52 | virtual bool hashInit(); |
| 53 | virtual bool hashUpdate(const ByteString& data); |
| 54 | virtual bool hashFinal(ByteString& hashedData); |
| 55 | |
| 56 | virtual int getHashSize() = 0; |
| 57 | protected: |
| 58 | virtual const EVP_MD* getEVPHash() const = 0; |
| 59 | |
| 60 | private: |
| 61 | // Current hashing context |
| 62 | EVP_MD_CTX* curCTX; |
| 63 | }; |
| 64 | |
| 65 | #endif // !_SOFTHSM_V2_OSSLEVPHASHALGORITHM_H |
| 66 | |