secp256k1::fast::Point Class Reference

#include <point.hpp>

Public Member Functions
	Point ()
FieldElement	x () const
FieldElement	y () const
bool	is_infinity () const noexcept
bool	is_gen () const noexcept
std::array< uint8_t, 16 >	x_first_half () const
std::array< uint8_t, 16 >	x_second_half () const
const FieldElement &	X () const noexcept
const FieldElement &	Y () const noexcept
const FieldElement &	z () const noexcept
Point	add (const Point &other) const
Point	dbl () const
Point	scalar_mul (const Scalar &scalar) const
Point	scalar_mul_precomputed_k (const Scalar &k) const
Point	scalar_mul_predecomposed (const Scalar &k1, const Scalar &k2, bool neg1, bool neg2) const
Point	scalar_mul_precomputed_wnaf (const std::vector< int32_t > &wnaf1, const std::vector< int32_t > &wnaf2, bool neg1, bool neg2) const
Point	scalar_mul_precomputed_wnaf (const int32_t *wnaf1, std::size_t len1, const int32_t *wnaf2, std::size_t len2, bool neg1, bool neg2) const
Point	scalar_mul_with_plan (const KPlan &plan) const
Point	negate () const
Point	next () const
Point	prev () const
void	next_inplace ()
void	prev_inplace ()
void	add_inplace (const Point &other)
void	sub_inplace (const Point &other)
void	add_mixed_inplace (const FieldElement &ax, const FieldElement &ay)
void	sub_mixed_inplace (const FieldElement &ax, const FieldElement &ay)
void	dbl_inplace ()
void	negate_inplace ()
void	add_affine_constant_inplace (const FieldElement &ax, const FieldElement &ay)
bool	has_even_y () const
std::pair< std::array< uint8_t, 32 >, bool >	x_bytes_and_parity () const
std::array< uint8_t, 32 >	x_only_bytes () const
void	normalize ()
bool	is_normalized () const noexcept
std::array< std::uint8_t, 33 >	to_compressed () const
std::array< std::uint8_t, 65 >	to_uncompressed () const
const FieldElement &	x_raw () const noexcept
const FieldElement &	y_raw () const noexcept
const FieldElement &	z_raw () const noexcept

Static Public Member Functions
static Point	generator ()
static Point	infinity ()
static Point	from_affine (const FieldElement &x, const FieldElement &y)
static Point	from_hex (const std::string &x_hex, const std::string &y_hex)
static void	batch_normalize (const Point *points, size_t n, FieldElement *out_x, FieldElement *out_y)
static void	batch_to_compressed (const Point *points, size_t n, std::array< uint8_t, 33 > *out)
static void	batch_x_only_bytes (const Point *points, size_t n, std::array< uint8_t, 32 > *out)
static Point	dual_scalar_mul_gen_point (const Scalar &a, const Scalar &b, const Point &P)
static Point	from_jacobian_coords (const FieldElement &x, const FieldElement &y, const FieldElement &z, bool infinity)

Detailed Description

Definition at line 83 of file point.hpp.

Constructor & Destructor Documentation

Point()

secp256k1::fast::Point::Point

(

)

Member Function Documentation

add()

Point secp256k1::fast::Point::add

(

const Point &

other

)

const

Referenced by ufsecp_pubkey_tweak_add().

add_affine_constant_inplace()

void secp256k1::fast::Point::add_affine_constant_inplace	(	const FieldElement &	ax,
		const FieldElement &	ay
	)

add_inplace()

void secp256k1::fast::Point::add_inplace

(

const Point &

other

)

add_mixed_inplace()

void secp256k1::fast::Point::add_mixed_inplace	(	const FieldElement &	ax,
		const FieldElement &	ay
	)

batch_normalize()

static void secp256k1::fast::Point::batch_normalize ( const Point *  points, size_t  n, FieldElement *  out_x, FieldElement *  out_y  )

static

batch_to_compressed()

static void secp256k1::fast::Point::batch_to_compressed ( const Point *  points, size_t  n, std::array< uint8_t, 33 > *  out  )

static

batch_x_only_bytes()

static void secp256k1::fast::Point::batch_x_only_bytes ( const Point *  points, size_t  n, std::array< uint8_t, 32 > *  out  )

static

dbl()

Point secp256k1::fast::Point::dbl

(

)

const

dbl_inplace()

void secp256k1::fast::Point::dbl_inplace

(

)

dual_scalar_mul_gen_point()

static Point secp256k1::fast::Point::dual_scalar_mul_gen_point ( const Scalar &  a, const Scalar &  b, const Point &  P  )

static

from_affine()

static Point secp256k1::fast::Point::from_affine ( const FieldElement &  x, const FieldElement &  y  )

static

Referenced by point_from_compressed(), and ufsecp_pubkey_parse().

from_hex()

static Point secp256k1::fast::Point::from_hex ( const std::string &  x_hex, const std::string &  y_hex  )

static

from_jacobian_coords()

static Point secp256k1::fast::Point::from_jacobian_coords ( const FieldElement &  x, const FieldElement &  y, const FieldElement &  z, bool  infinity  )

static

generator()

static Point secp256k1::fast::Point::generator ( )

static

Referenced by secp256k1::effective_generator(), secp256k1::CurveContext::secp256k1_default(), and ufsecp_pubkey_tweak_add().

has_even_y()

bool secp256k1::fast::Point::has_even_y

(

)

const

infinity()

static Point secp256k1::fast::Point::infinity ( )

static

Referenced by point_from_compressed().

is_gen()

bool secp256k1::fast::Point::is_gen ( ) const

inlinenoexcept

Definition at line 98 of file point.hpp.

is_infinity()

bool secp256k1::fast::Point::is_infinity ( ) const

inlinenoexcept

Definition at line 97 of file point.hpp.

Referenced by ecdh_parse_args(), pubkey_create_core(), ufsecp_bip322_verify(), ufsecp_ecdsa_adaptor_adapt(), ufsecp_ecdsa_adaptor_extract(), ufsecp_ecdsa_adaptor_verify(), ufsecp_frost_sign(), ufsecp_musig2_start_sign_session(), ufsecp_schnorr_adaptor_adapt(), ufsecp_schnorr_adaptor_extract(), ufsecp_schnorr_adaptor_verify(), and ufsecp_silent_payment_create_output().

is_normalized()

bool secp256k1::fast::Point::is_normalized ( ) const

inlinenoexcept

Definition at line 210 of file point.hpp.

negate()

Point secp256k1::fast::Point::negate

(

)

const

negate_inplace()

void secp256k1::fast::Point::negate_inplace

(

)

next()

Point secp256k1::fast::Point::next

(

)

const

next_inplace()

void secp256k1::fast::Point::next_inplace

(

)

normalize()

void secp256k1::fast::Point::normalize

(

)

prev()

Point secp256k1::fast::Point::prev

(

)

const

prev_inplace()

void secp256k1::fast::Point::prev_inplace

(

)

scalar_mul()

Point secp256k1::fast::Point::scalar_mul

(

const Scalar &

scalar

)

const

Referenced by secp256k1::derive_public_key(), secp256k1::scalar_mul_G(), and ufsecp_pubkey_tweak_add().

scalar_mul_precomputed_k()

Point secp256k1::fast::Point::scalar_mul_precomputed_k

(

const Scalar &

k

)

const

scalar_mul_precomputed_wnaf() [1/2]

Point secp256k1::fast::Point::scalar_mul_precomputed_wnaf	(	const int32_t *	wnaf1,
		std::size_t	len1,
		const int32_t *	wnaf2,
		std::size_t	len2,
		bool	neg1,
		bool	neg2
	)		const

scalar_mul_precomputed_wnaf() [2/2]

Point secp256k1::fast::Point::scalar_mul_precomputed_wnaf	(	const std::vector< int32_t > &	wnaf1,
		const std::vector< int32_t > &	wnaf2,
		bool	neg1,
		bool	neg2
	)		const

scalar_mul_predecomposed()

Point secp256k1::fast::Point::scalar_mul_predecomposed	(	const Scalar &	k1,
		const Scalar &	k2,
		bool	neg1,
		bool	neg2
	)		const

scalar_mul_with_plan()

Point secp256k1::fast::Point::scalar_mul_with_plan

(

const KPlan &

plan

)

const

sub_inplace()

void secp256k1::fast::Point::sub_inplace

(

const Point &

other

)

sub_mixed_inplace()

void secp256k1::fast::Point::sub_mixed_inplace	(	const FieldElement &	ax,
		const FieldElement &	ay
	)

to_compressed()

std::array< std::uint8_t, 33 > secp256k1::fast::Point::to_compressed

(

)

const

Referenced by point_to_compressed().

to_uncompressed()

std::array< std::uint8_t, 65 > secp256k1::fast::Point::to_uncompressed

(

)

const

Referenced by ufsecp_pubkey_create_uncompressed().

x()

FieldElement secp256k1::fast::Point::x

(

)

const

X()

const FieldElement & secp256k1::fast::Point::X ( ) const

inlinenoexcept

Definition at line 116 of file point.hpp.

x_bytes_and_parity()

std::pair< std::array< uint8_t, 32 >, bool > secp256k1::fast::Point::x_bytes_and_parity

(

)

const

x_first_half()

std::array< uint8_t, 16 > secp256k1::fast::Point::x_first_half

(

)

const

x_only_bytes()

std::array< uint8_t, 32 > secp256k1::fast::Point::x_only_bytes

(

)

const

x_raw()

const FieldElement & secp256k1::fast::Point::x_raw ( ) const

inlinenoexcept

Definition at line 224 of file point.hpp.

x_second_half()

std::array< uint8_t, 16 > secp256k1::fast::Point::x_second_half

(

)

const

y()

FieldElement secp256k1::fast::Point::y

(

)

const

Y()

const FieldElement & secp256k1::fast::Point::Y ( ) const

inlinenoexcept

Definition at line 117 of file point.hpp.

y_raw()

const FieldElement & secp256k1::fast::Point::y_raw ( ) const

inlinenoexcept

Definition at line 225 of file point.hpp.

z()

const FieldElement & secp256k1::fast::Point::z ( ) const

inlinenoexcept

Definition at line 118 of file point.hpp.

z_raw()

const FieldElement & secp256k1::fast::Point::z_raw ( ) const

inlinenoexcept

Definition at line 226 of file point.hpp.

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

• cpu/include/secp256k1/point.hpp