BGN2/bgn2/src/Bipoint.cpp

#include "Bipoint.hpp"

Bipoint<curvepoint_fp_t>::Bipoint()
{
	curvepoint_fp_setneutral(point[0]);
	curvepoint_fp_setneutral(point[1]);
}

Bipoint<twistpoint_fp2_t>::Bipoint()
{
	twistpoint_fp2_setneutral(point[0]);
	twistpoint_fp2_setneutral(point[1]);
}

Bipoint<curvepoint_fp_t>::Bipoint(curvepoint_fp_t p1, curvepoint_fp_t p2)
{
	curvepoint_fp_set(point[0], p1);
	curvepoint_fp_set(point[1], p2);
}

Bipoint<twistpoint_fp2_t>::Bipoint(twistpoint_fp2_t p1, twistpoint_fp2_t p2)
{
	twistpoint_fp2_set(point[0], p1);
	twistpoint_fp2_set(point[1], p2);
}

curvepoint_fp_t& Bipoint<curvepoint_fp_t>::operator[](int n)
{
	return point[n];
}

twistpoint_fp2_t& Bipoint<twistpoint_fp2_t>::operator[](int n)
{
	return point[n];
}

const curvepoint_fp_t& Bipoint<curvepoint_fp_t>::operator[](int n) const
{
	return point[n];
}

const twistpoint_fp2_t& Bipoint<twistpoint_fp2_t>::operator[](int n) const
{
	return point[n];
}

Bipoint<curvepoint_fp_t> Bipoint<curvepoint_fp_t>::operator+(const Bipoint<curvepoint_fp_t>& b) const
{
	Bipoint<curvepoint_fp_t> retval;

	curvepoint_fp_add_vartime(retval[0], point[0], b.point[0]);
	curvepoint_fp_add_vartime(retval[1], point[1], b.point[1]);

	return retval;
}

Bipoint<twistpoint_fp2_t> Bipoint<twistpoint_fp2_t>::operator+(const Bipoint<twistpoint_fp2_t>& b) const
{
	Bipoint<twistpoint_fp2_t> retval;

	twistpoint_fp2_add_vartime(retval[0], point[0], b.point[0]);
	twistpoint_fp2_add_vartime(retval[1], point[1], b.point[1]);

	return retval;
}

Bipoint<curvepoint_fp_t> Bipoint<curvepoint_fp_t>::operator*(const Scalar& mult) const
{
	Bipoint<curvepoint_fp_t> retval;

	retval[0] = mult * point[0];
	retval[1] = mult * point[1];

	return retval;
}

Bipoint<twistpoint_fp2_t> Bipoint<twistpoint_fp2_t>::operator*(const Scalar& mult) const
{
	Bipoint<twistpoint_fp2_t> retval;

	retval[0] = mult * point[0];
	retval[1] = mult * point[1];

	return retval;
}

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

	fpe_t point0_x1z2, point0_y1z2, point0_x2z1, point0_y2z1, point1_x1z2, point1_y1z2, point1_x2z1, point1_y2z1;
	fpe_mul(point0_x1z2, point[0]->m_x, b[0]->m_z);
	fpe_mul(point0_y1z2, point[0]->m_y, b[0]->m_z);
	fpe_mul(point0_x2z1, point[0]->m_z, b[0]->m_x);
	fpe_mul(point0_y2z1, point[0]->m_z, b[0]->m_y);
	fpe_mul(point1_x1z2, point[1]->m_x, b[1]->m_z);
	fpe_mul(point1_y1z2, point[1]->m_y, b[1]->m_z);
	fpe_mul(point1_x2z1, point[1]->m_z, b[1]->m_x);
	fpe_mul(point1_y2z1, point[1]->m_z, b[1]->m_y);

	retval   = fpe_iseq(point0_x1z2, point0_x2z1);
	retval &&= fpe_iseq(point0_y1z2, point0_y2z1); 
	retval &&= fpe_iseq(point1_x1z2, point1_x2z1);
	retval &&= fpe_iseq(point1_y1z2, point1_y2z1); 

	return retval;
}

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

	fp2e_t point0_x1z2, point0_y1z2, point0_x2z1, point0_y2z1, point1_x1z2, point1_y1z2, point1_x2z1, point1_y2z1;
	fp2e_mul(point0_x1z2, point[0]->m_x, b[0]->m_z);
	fp2e_mul(point0_y1z2, point[0]->m_y, b[0]->m_z);
	fp2e_mul(point0_x2z1, point[0]->m_z, b[0]->m_x);
	fp2e_mul(point0_y2z1, point[0]->m_z, b[0]->m_y);
	fp2e_mul(point1_x1z2, point[1]->m_x, b[1]->m_z);
	fp2e_mul(point1_y1z2, point[1]->m_y, b[1]->m_z);
	fp2e_mul(point1_x2z1, point[1]->m_z, b[1]->m_x);
	fp2e_mul(point1_y2z1, point[1]->m_z, b[1]->m_y);

	retval   = fp2e_iseq(point0_x1z2, point0_x2z1);
	retval &&= fp2e_iseq(point0_y1z2, point0_y2z1); 
	retval &&= fp2e_iseq(point1_x1z2, point1_x2z1);
	retval &&= fp2e_iseq(point1_y1z2, point1_y2z1);

	return retval;
}

bool Bipoint<curvepoint_fp_t>::operator!=(const Bipoint<curvepoint_fp_t>& b) const
{
	return !(*this == b);
}

bool Bipoint<twistpoint_fp2_t>::operator!=(const Bipoint<twistpoint_fp2_t>& b) const
{
	return !(*this == b);
}

Bipoint<curvepoint_fp_t> Bipoint<curvepoint_fp_t>::mult_by_2() const
{
	Bipoint<curvepoint_fp_t> retval;

	curvepoint_fp_double(retval[0], point[0]);
	curvepoint_fp_double(retval[1], point[1]);

	return retval;
}

Bipoint<twistpoint_fp2_t> Bipoint<twistpoint_fp2_t>::mult_by_2() const
{
	Bipoint<twistpoint_fp2_t> retval;

	twistpoint_fp2_double(retval[0], point[0]);
	twistpoint_fp2_double(retval[1], point[1]);

	return retval;
}

void Bipoint<curvepoint_fp_t>::make_affine()
{
	curvepoint_fp_makeaffine(point[0]);
	curvepoint_fp_makeaffine(point[1]);
}

void Bipoint<twistpoint_fp2_t>::make_affine()
{
	twistpoint_fp2_makeaffine(point[0]);
	twistpoint_fp2_makeaffine(point[1]);
}