Botan::PCurve::PrimeOrderCurve::ProjectivePoint Class Reference

#include <pcurves.h>

Public Member Functions
const auto &	_curve () const
const auto &	_x () const
const auto &	_y () const
const auto &	_z () const
ProjectivePoint	dbl () const
ProjectivePoint	negate () const
ProjectivePoint &	operator= (const ProjectivePoint &other)=default
ProjectivePoint &	operator= (ProjectivePoint &&other)=default
	ProjectivePoint (const ProjectivePoint &other)=default
	ProjectivePoint (ProjectivePoint &&other)=default
AffinePoint	to_affine () const
	~ProjectivePoint ()=default

Static Public Member Functions
static ProjectivePoint	_create (CurvePtr curve, StorageUnit x, StorageUnit y, StorageUnit z)
static ProjectivePoint	from_affine (const AffinePoint &pt)

Friends
ProjectivePoint	operator+ (const ProjectivePoint &x, const AffinePoint &y)
ProjectivePoint	operator+ (const ProjectivePoint &x, const ProjectivePoint &y)

Detailed Description

A point on the elliptic curve in projective form

This is a form that is convenient for computation; it must be converted to affine form for comparisons or serialization.

Definition at line 223 of file pcurves.h.

Constructor & Destructor Documentation

ProjectivePoint() [1/2]

Botan::PCurve::PrimeOrderCurve::ProjectivePoint::ProjectivePoint ( const ProjectivePoint & other )

default

ProjectivePoint() [2/2]

Botan::PCurve::PrimeOrderCurve::ProjectivePoint::ProjectivePoint ( ProjectivePoint && other )

default

~ProjectivePoint()

Botan::PCurve::PrimeOrderCurve::ProjectivePoint::~ProjectivePoint ( )

default

Member Function Documentation

_create()

static ProjectivePoint Botan::PCurve::PrimeOrderCurve::ProjectivePoint::_create ( CurvePtr curve, StorageUnit x, StorageUnit y, StorageUnit z )

inlinestatic

Definition at line 264 of file pcurves.h.

                                                                                                        {
               return ProjectivePoint(std::move(curve), x, y, z);
            }

_curve()

const auto & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::_curve ( ) const

inline

Definition at line 256 of file pcurves.h.

{ return m_curve; }

_x()

const auto & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::_x ( ) const

inline

Definition at line 258 of file pcurves.h.

{ return m_x; }

_y()

const auto & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::_y ( ) const

inline

Definition at line 260 of file pcurves.h.

{ return m_y; }

_z()

const auto & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::_z ( ) const

inline

Definition at line 262 of file pcurves.h.

{ return m_z; }

dbl()

ProjectivePoint Botan::PCurve::PrimeOrderCurve::ProjectivePoint::dbl ( ) const

inline

Definition at line 244 of file pcurves.h.

{ return m_curve->point_double(*this); }

from_affine()

static ProjectivePoint Botan::PCurve::PrimeOrderCurve::ProjectivePoint::from_affine ( const AffinePoint & pt )

inlinestatic

Convert a point from affine to projective form

Definition at line 234 of file pcurves.h.

{ return pt._curve()->point_to_projective(pt); }

References Botan::PCurve::PrimeOrderCurve::AffinePoint::_curve().

negate()

ProjectivePoint Botan::PCurve::PrimeOrderCurve::ProjectivePoint::negate ( ) const

inline

Definition at line 246 of file pcurves.h.

{ return m_curve->point_negate(*this); }

operator=() [1/2]

ProjectivePoint & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::operator= ( const ProjectivePoint & other )

default

operator=() [2/2]

ProjectivePoint & Botan::PCurve::PrimeOrderCurve::ProjectivePoint::operator= ( ProjectivePoint && other )

default

to_affine()

AffinePoint Botan::PCurve::PrimeOrderCurve::ProjectivePoint::to_affine ( ) const

inline

Convert a point from projective to affine form

This operation is expensive; perform it only when required for serialization

Definition at line 242 of file pcurves.h.

{ return m_curve->point_to_affine(*this); }

Referenced by Botan::PCurve::PrimeOrderCurveImpl< C >::base_point_mul_x_mod_order(), and Botan::PCurve::PrimeOrderCurveImpl< C >::mul2_vartime_x_mod_order().

Friends And Related Symbol Documentation

operator+ [1/2]

ProjectivePoint operator+ ( const ProjectivePoint & x, const AffinePoint & y )

friend

Definition at line 252 of file pcurves.h.

                                                                                             {
               return x.m_curve->point_add_mixed(x, y);
            }

operator+ [2/2]

ProjectivePoint operator+ ( const ProjectivePoint & x, const ProjectivePoint & y )

friend

Definition at line 248 of file pcurves.h.

                                                                                                 {
               return x.m_curve->point_add(x, y);
            }

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The documentation for this class was generated from the following file:

• src/lib/math/pcurves/pcurves.h