Struct bign256::BignP256

pub struct BignP256;

BIGN P-256 elliptic curve.

This curve is also known as bign-curve256v1 and is specified in STB 34.101.45-2013: Recommendations for Discrete Logarithm-based Cryptography: Elliptic Curve Domain Parameters.

Its equation is y² = x³ + ax + b over a ~256-bit prime field.

a = 115792089237316195423570985008687907853269984665640564039457584007913129639744
b = 54189945433829174764701416670523239872420438478408031144987871676190519198705

Trait Implementations

impl AssociatedOid for BignP256

const OID: ObjectIdentifier = _

The OID associated with this type.

impl Clone for BignP256

fn clone(&self) -> BignP256

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Curve for BignP256

type FieldBytesSize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>

256-bit integer type used for internally representing field elements.

const ORDER: U256 = _

Order of BIGN P-256’s elliptic curve group (i.e. scalar modulus).

type Uint = Uint<crypto_bigint::::uint::U256::{constant#0}>

Integer type used to represent field elements of this elliptic curve.

impl CurveArithmetic for BignP256

type AffinePoint = AffinePoint<BignP256>

Elliptic curve point in affine coordinates.

type ProjectivePoint = ProjectivePoint<BignP256>

Elliptic curve point in projective coordinates.

type Scalar = Scalar

Scalar field modulo this curve’s order.

impl Debug for BignP256

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BignP256

fn default() -> BignP256

Returns the “default value” for a type.

impl FieldBytesEncoding<BignP256> for U256

fn decode_field_bytes(field_bytes: &FieldBytes) -> Self

Decode unsigned integer from serialized field element.

fn encode_field_bytes(&self) -> FieldBytes

Encode unsigned integer into serialized field element.

impl Ord for BignP256

fn cmp(&self, other: &BignP256) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for BignP256

fn eq(&self, other: &BignP256) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for BignP256

fn partial_cmp(&self, other: &BignP256) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PointCompaction for BignP256

const COMPACT_POINTS: bool = false

BIGN P-256 points are typically uncompressed.

impl PointCompression for BignP256

const COMPRESS_POINTS: bool = false

BIGN P-256 points are typically uncompressed.

impl PrimeCurveArithmetic for BignP256

type CurveGroup = ProjectivePoint<BignP256>

Prime order elliptic curve group.

impl PrimeCurveParams for BignP256

type FieldElement = FieldElement

Base field element type.

type PointArithmetic = EquationAIsGeneric

Point arithmetic implementation, might be optimized for this specific curve

const EQUATION_A: Self::FieldElement = _

Coefficient a in the curve equation.

const EQUATION_B: Self::FieldElement = _

Coefficient b in the curve equation.

const GENERATOR: (Self::FieldElement, Self::FieldElement) = _

Generator point’s affine coordinates: (x, y).

impl ToEncodedPoint<BignP256> for VerifyingKey

fn to_encoded_point(&self, compress: bool) -> EncodedPoint

Serialize this value as a SEC1 EncodedPoint, optionally applying point compression.

impl Copy for BignP256

impl Eq for BignP256

impl PrimeCurve for BignP256

impl StructuralEq for BignP256

impl StructuralPartialEq for BignP256