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/*
* Copyright (c) 2010,
* Gavriloaie Eugen-Andrei (shiretu@gmail.com)
*
* This file is part of crtmpserver.
* crtmpserver is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* crtmpserver is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with crtmpserver. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CRYPTO_H
#define _CRYPTO_H
#include "platform/platform.h"
#include <openssl/bn.h>
#include <openssl/dh.h>
#include <openssl/rc4.h>
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <openssl/bio.h>
#include <openssl/hmac.h>
#include <openssl/aes.h>
#include <openssl/engine.h>
#include <openssl/conf.h>
/*!
@class DHWrapper
@brief Class that handles the DH wrapper
*/
class DLLEXP DHWrapper {
private:
int32_t _bitsCount;
DH *_pDH;
uint8_t *_pSharedKey;
int32_t _sharedKeyLength;
BIGNUM *_peerPublickey;
public:
DHWrapper(int32_t bitsCount);
virtual ~DHWrapper();
/*!
@brief Initializes the DH wrapper
*/
bool Initialize();
/*!
@brief Copies the public key.
@param pDst - Where the copied key is stored
@param dstLength
*/
bool CopyPublicKey(uint8_t *pDst, int32_t dstLength);
/*!
@brief Copies the private key.
@param pDst - Where the copied key is stored
@param dstLength
*/
bool CopyPrivateKey(uint8_t *pDst, int32_t dstLength);
/*!
@brief Creates a shared secret key
@param pPeerPublicKey
@param length
*/
bool CreateSharedKey(uint8_t *pPeerPublicKey, int32_t length);
/*!
@brief Copies the shared secret key.
@param pDst - Where the copied key is stored
@param dstLength
*/
bool CopySharedKey(uint8_t *pDst, int32_t dstLength);
private:
void Cleanup();
bool CopyKey(BIGNUM *pNum, uint8_t *pDst, int32_t dstLength);
};
DLLEXP void InitRC4Encryption(uint8_t *secretKey, uint8_t *pubKeyIn, uint8_t *pubKeyOut,
RC4_KEY *rc4keyIn, RC4_KEY *rc4keyOut);
DLLEXP string md5(string source, bool textResult);
DLLEXP string md5(uint8_t *pBuffer, uint32_t length, bool textResult);
DLLEXP void HMACsha256(const void *pData, uint32_t dataLength, const void *pKey,
uint32_t keyLength, void *pResult);
DLLEXP string b64(string source);
DLLEXP string b64(uint8_t *pBuffer, uint32_t length);
DLLEXP string unb64(string source);
DLLEXP string unb64(uint8_t *pBuffer, uint32_t length);
DLLEXP string unhex(string source);
DLLEXP void CleanupSSL();
#endif /* _CRYPTO_H */
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