Botan::PCurve::PrimeOrderCurve::AffinePoint Class Reference

#include <pcurves.h>

Public Member Functions
const auto &	_curve () const
const auto &	_x () const
const auto &	_y () const
	AffinePoint (AffinePoint &&other)=default
	AffinePoint (const AffinePoint &other)=default
size_t	bytes () const
size_t	compressed_bytes () const
bool	is_identity () const
AffinePoint &	operator= (AffinePoint &&other)=default
AffinePoint &	operator= (const AffinePoint &other)=default
template<concepts::resizable_byte_buffer T = std::vector<uint8_t>>
T	serialize () const
template<concepts::resizable_byte_buffer T = std::vector<uint8_t>>
T	serialize_compressed () const
template<concepts::resizable_byte_buffer T = secure_vector<uint8_t>>
T	x_bytes () const
	~AffinePoint ()=default

Static Public Member Functions
static AffinePoint	_create (CurvePtr curve, StorageUnit x, StorageUnit y)
static AffinePoint	generator (CurvePtr curve)

Detailed Description

A point on the elliptic curve in affine form

These points can be serialized, or converted to projective form for computation

Definition at line 144 of file pcurves.h.

Constructor & Destructor Documentation

AffinePoint() [1/2]

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

default

AffinePoint() [2/2]

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

default

~AffinePoint()

Botan::PCurve::PrimeOrderCurve::AffinePoint::~AffinePoint ( )

default

Member Function Documentation

_create()

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

inlinestatic

Definition at line 205 of file pcurves.h.

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

_curve()

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

inline

Definition at line 199 of file pcurves.h.

{ return m_curve; }

Referenced by Botan::PCurve::PrimeOrderCurve::ProjectivePoint::from_affine().

_x()

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

inline

Definition at line 201 of file pcurves.h.

{ return m_x; }

_y()

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

inline

Definition at line 203 of file pcurves.h.

{ return m_y; }

bytes()

size_t Botan::PCurve::PrimeOrderCurve::AffinePoint::bytes ( ) const

inline

Return the size of the uncompressed encoding of points

Definition at line 157 of file pcurves.h.

{ return 1 + 2 * m_curve->field_element_bytes(); }

compressed_bytes()

size_t Botan::PCurve::PrimeOrderCurve::AffinePoint::compressed_bytes ( ) const

inline

Return the size of the compressed encoding of points

Definition at line 162 of file pcurves.h.

{ return 1 + m_curve->field_element_bytes(); }

generator()

static AffinePoint Botan::PCurve::PrimeOrderCurve::AffinePoint::generator ( CurvePtr curve )

inlinestatic

Definition at line 152 of file pcurves.h.

{ return curve->generator(); }

References generator().

Referenced by generator().

is_identity()

bool Botan::PCurve::PrimeOrderCurve::AffinePoint::is_identity ( ) const

inline

Return true if this is the curve identity element (aka the point at infinity)

Definition at line 197 of file pcurves.h.

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

Referenced by Botan::EC_AffinePoint_Data_PC::EC_AffinePoint_Data_PC(), and Botan::EC_AffinePoint_Data_PC::EC_AffinePoint_Data_PC().

operator=() [1/2]

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

default

operator=() [2/2]

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

default

serialize()

template<concepts::resizable_byte_buffer T = std::vector<uint8_t>>

T Botan::PCurve::PrimeOrderCurve::AffinePoint::serialize ( ) const

inline

Return the serialization of the point in uncompressed form

Definition at line 168 of file pcurves.h.

                                {
               T bytes(this->bytes());
               m_curve->serialize_point(bytes, *this);
               return bytes;
            }

References T.

serialize_compressed()

template<concepts::resizable_byte_buffer T = std::vector<uint8_t>>

T Botan::PCurve::PrimeOrderCurve::AffinePoint::serialize_compressed ( ) const

inline

Return the serialization of the point in compressed form

Definition at line 178 of file pcurves.h.

                                           {
               T bytes(this->compressed_bytes());
               m_curve->serialize_point_compressed(bytes, *this);
               return bytes;
            }

References T.

x_bytes()

template<concepts::resizable_byte_buffer T = secure_vector<uint8_t>>

T Botan::PCurve::PrimeOrderCurve::AffinePoint::x_bytes ( ) const

inline

Return the serialization of the x coordinate

Definition at line 188 of file pcurves.h.

                              {
               secure_vector<uint8_t> bytes(m_curve->field_element_bytes());
               m_curve->serialize_point_x(bytes, *this);
               return bytes;
            }

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

• src/lib/math/pcurves/pcurves.h