#include <ec_inner_pc.h>

Inheritance diagram for Botan::EC_Mul2Table_Data_PC:

Public Member Functions
	EC_Mul2Table_Data_PC (const EC_AffinePoint_Data &q)
std::unique_ptr< EC_AffinePoint_Data >	mul2_vartime (const EC_Scalar_Data &x, const EC_Scalar_Data &y) const override
bool	mul2_vartime_x_mod_order_eq (const EC_Scalar_Data &v, const EC_Scalar_Data &x, const EC_Scalar_Data &y) const override

Detailed Description

Definition at line 100 of file ec_inner_pc.h.

Constructor & Destructor Documentation

◆ EC_Mul2Table_Data_PC()

Botan::EC_Mul2Table_Data_PC::EC_Mul2Table_Data_PC ( const EC_AffinePoint_Data & q )

explicit

Definition at line 188 of file ec_inner_pc.cpp.

                                                                       : m_group(q.group()) {
   BOTAN_ARG_CHECK(q.group() == m_group, "Curve mismatch");
 
   const auto& pt_q = EC_AffinePoint_Data_PC::checked_ref(q);
 
   m_tbl = m_group->pcurve().mul2_setup_g(pt_q.value());
}

References BOTAN_ARG_CHECK, Botan::EC_AffinePoint_Data_PC::checked_ref(), and Botan::EC_AffinePoint_Data::group().

Member Function Documentation

◆ mul2_vartime()

std::unique_ptr< EC_AffinePoint_Data > Botan::EC_Mul2Table_Data_PC::mul2_vartime	(	const EC_Scalar_Data &	x,
		const EC_Scalar_Data &	y ) const

overridevirtual

Implements Botan::EC_Mul2Table_Data.

Definition at line 196 of file ec_inner_pc.cpp.

                                                                                                        {
   BOTAN_ARG_CHECK(xd.group() == m_group && yd.group() == m_group, "Curve mismatch");
 
   const auto& x = EC_Scalar_Data_PC::checked_ref(xd);
   const auto& y = EC_Scalar_Data_PC::checked_ref(yd);
 
   const auto& pcurve = m_group->pcurve();
 
   if(auto pt = pcurve.mul2_vartime(*m_tbl, x.value(), y.value())) {
      return std::make_unique<EC_AffinePoint_Data_PC>(m_group, pcurve.point_to_affine(*pt));
   } else {
      return nullptr;
   }
}

References BOTAN_ARG_CHECK, Botan::EC_Scalar_Data_PC::checked_ref(), and Botan::EC_Scalar_Data::group().

◆ mul2_vartime_x_mod_order_eq()

bool Botan::EC_Mul2Table_Data_PC::mul2_vartime_x_mod_order_eq	(	const EC_Scalar_Data &	v,
		const EC_Scalar_Data &	x,
		const EC_Scalar_Data &	y ) const