random_provider_gmp.h

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/*
SeComLib
Copyright 2012-2013 TU Delft, Information Security & Privacy Lab (http://isplab.tudelft.nl/)

Contributors:
Inald Lagendijk (R.L.Lagendijk@TUDelft.nl)
Mihai Todor (todormihai@gmail.com)
Thijs Veugen (P.J.M.Veugen@tudelft.nl)
Zekeriya Erkin (z.erkin@tudelft.nl)

Licensed 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.
*/
#ifndef RANDOM_PROVIDER_GMP_HEADER_GUARD
#define RANDOM_PROVIDER_GMP_HEADER_GUARD

//defined for WIN64 as well
#ifdef _WIN32
    //required by iostream to include the Windows function errno_t rand_s(unsigned int* randomValue)
    #define _CRT_RAND_S
#endif

#include "random_provider_base.h"

//include C++ headers
#include <iostream>
#include <fstream>
#include <stdexcept>

namespace SeComLib {
namespace Core {
    class RandomProviderGmp {
    public:
        typedef gmp_randstate_t RandomGeneratorState;

        static void Initialize(RandomProviderBase<RandomProviderGmp> &input);

        static void Destroy(RandomProviderBase<RandomProviderGmp> &input);

        static void GetRandomInteger(BigIntegerBase<BigIntegerGmp> &output, RandomProviderBase<RandomProviderGmp> &input, const size_t numberOfBits);

        static void GetRandomInteger(BigIntegerBase<BigIntegerGmp> &output, RandomProviderBase<RandomProviderGmp> &input, const BigIntegerBase<BigIntegerGmp> &maximumValue);

        static void GetMaxLengthRandomPrime(BigIntegerBase<BigIntegerGmp> &output, RandomProviderBase<RandomProviderGmp> &input, const size_t numberOfBits);
    };
}//namespace Core
}//namespace SeComLib

#endif//RANDOM_PROVIDER_GMP_HEADER_GUARD