BGN2/bgn2/src/Bipoint.hpp

#ifndef __BIPOINT_HPP
#define __BIPOINT_HPP

#include "PublicKey.hpp"
#include "PrivateKey.hpp"

#include "mydouble.h" 
extern "C" {
#include "fpe.h"
}
#include "curvepoint_fp.h"
extern "C" {
#include "fp2e.h"	
}
#include "twistpoint_fp2.h"

/* It doesn't actually make sense to instantiate this generally;
 * we'll specify for each real type directly.
 * We still have to make something here, though, so it's empty. */
template <typename T>
class Bipoint
{};

template <>
class Bipoint<curvepoint_fp_t>
{
	public:
		Bipoint();
		Bipoint(curvepoint_fp_t p1, curvepoint_fp_t p2);

		void receive_encryption(const scalar_t& cleartext, const PublicKey& public_key);

		curvepoint_fp_t& operator[](int n);
		const curvepoint_fp_t& operator[](int n) const;

		Bipoint<curvepoint_fp_t> operator+(const Bipoint<curvepoint_fp_t>& b) const;
		Bipoint<curvepoint_fp_t> operator*(const scalar_t& mult) const;

		bool operator==(const Bipoint<curvepoint_fp_t>& b) const;

		Bipoint<curvepoint_fp_t> multBy2() const;
	
	private:
		curvepoint_fp_t point[2];	
};

template <>
class Bipoint<twistpoint_fp2_t>
{
	public:
		Bipoint(); 
		Bipoint(twistpoint_fp2_t p1, twistpoint_fp2_t p2);

		receive_encryption(const scalar_t& cleartext, const PublicKey& public_key);

		twistpoint_fp2_t& operator[](int n);
		const twistpoint_fp2_t& operator[](int n) const;

		Bipoint<twistpoint_fp2_t> operator+(const Bipoint<twistpoint_fp2_t>& b) const;
		Bipoint<twistpoint_fp2_t> operator*(const scalar_t& mult) const;

		bool operator==(const Bipoint<twistpoint_fp2_t>& b) const;

		Bipoint<twistpoint_fp2_t> multBy2() const;
	
	private:
		twistpoint_fp2_t point[2];	
};

#endif