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/*
* Copyright (C) 2008-2017 TrinityCore <http://www.trinitycore.org/>
*
* This program 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 2 of the License, or (at your
* option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Define.h"
#include <openssl/objects.h>
#include <openssl/rsa.h>
#include <string>
#include <type_traits>
class BigNumber;
namespace Trinity
{
namespace Crypto
{
class TC_COMMON_API RSA
{
public:
struct PublicKey {};
struct PrivateKey {};
struct NoPadding : std::integral_constant<int32, RSA_NO_PADDING> {};
struct PKCS1Padding : std::integral_constant<int32, RSA_PKCS1_PADDING> {};
struct SHA256 : std::integral_constant<int32, NID_sha256> {};
RSA();
RSA(RSA&& rsa);
~RSA();
template <typename KeyTag>
bool LoadFromFile(std::string const& fileName, KeyTag);
template <typename KeyTag>
bool LoadFromString(std::string const& keyPem, KeyTag);
uint32 GetOutputSize() const { return uint32(RSA_size(_rsa)); }
BigNumber GetModulus() const;
template <typename KeyTag, typename PaddingTag>
bool Encrypt(uint8 const* data, std::size_t dataLength, uint8* output, KeyTag, PaddingTag)
{
return Encrypt<KeyTag>(data, dataLength, output, PaddingTag::value);
}
template <typename HashTag>
bool Sign(uint8 const* dataHash, std::size_t dataHashLength, uint8* output, HashTag)
{
return Sign(HashTag::value, dataHash, dataHashLength, output);
}
private:
template <typename KeyTag>
bool Encrypt(uint8 const* data, std::size_t dataLength, uint8* output, int32 paddingType);
bool Sign(int32 hashType, uint8 const* dataHash, std::size_t dataHashLength, uint8* output);
RSA(RSA const& rsa) = delete;
RSA& operator=(RSA const& rsa) = delete;
::RSA* _rsa;
};
}
}
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