102 lines
4.1 KiB
C++
102 lines
4.1 KiB
C++
/*****************************************************************************
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* PokerTH - The open source texas holdem engine *
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* Copyright (C) 2006-2012 Felix Hammer, Florian Thauer, Lothar May *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Affero General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Affero General Public License for more details. *
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* *
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* You should have received a copy of the GNU Affero General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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* *
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* Additional permission under GNU AGPL version 3 section 7 *
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* *
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* If you modify this program, or any covered work, by linking or *
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* combining it with the OpenSSL project's OpenSSL library (or a *
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* modified version of that library), containing parts covered by the *
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* terms of the OpenSSL or SSLeay licenses, the authors of PokerTH *
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* (Felix Hammer, Florian Thauer, Lothar May) grant you additional *
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* permission to convey the resulting work. *
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* Corresponding Source for a non-source form of such a combination *
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* shall include the source code for the parts of OpenSSL used as well *
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* as that of the covered work. *
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*****************************************************************************/
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/* Helper class for crypt functions. */
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#ifndef _CRYPTHELPER_H_
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#define _CRYPTHELPER_H_
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#include <string>
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#include <vector>
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#define MD5_DATA_SIZE 16
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#define SHA1_DATA_SIZE 20
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#define AES_BLOCK_SIZE 16
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#define ADD_PADDING(x) ((((x) + 15) >> 4) << 4)
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class HashBuf
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{
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public:
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virtual ~HashBuf();
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std::string ToString() const;
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bool FromString(const std::string &text);
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bool IsZero() const;
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bool operator==(const HashBuf &other) const;
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bool operator<(const HashBuf &other) const;
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virtual unsigned char *GetData() = 0;
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virtual const unsigned char *GetData() const = 0;
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virtual int GetDataSize() const = 0;
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};
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class MD5Buf : public HashBuf
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{
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public:
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MD5Buf();
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virtual unsigned char *GetData();
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virtual const unsigned char *GetData() const;
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virtual int GetDataSize() const;
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private:
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unsigned char m_data[MD5_DATA_SIZE];
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};
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class SHA1Buf : public HashBuf
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{
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public:
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SHA1Buf();
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virtual unsigned char *GetData();
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virtual const unsigned char *GetData() const;
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virtual int GetDataSize() const;
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unsigned char m_data[SHA1_DATA_SIZE];
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};
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class CryptHelper
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{
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public:
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static bool MD5Sum(const std::string &fileName, MD5Buf &buf);
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static bool SHA1Hash(const unsigned char *data, unsigned dataSize, SHA1Buf &buf);
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static bool HMACSha1(const unsigned char *keyData, unsigned keySize, const unsigned char *plainData, unsigned plainSize, SHA1Buf &buf);
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static bool AES128Encrypt(const unsigned char *keyData, unsigned keySize, const std::string &plainStr, std::vector<unsigned char> &outCipher);
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static bool AES128Decrypt(const unsigned char *keyData, unsigned keySize, const unsigned char *cipher, unsigned cipherSize, std::string &outPlain);
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private:
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static void BytesToKey(const unsigned char *keyData, unsigned keySize, unsigned char *key, unsigned char *iv);
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};
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#endif
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