Struct P256 

pub struct P256;

The P-256 curve.

Trait Implementations

impl Clone for P256

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for P256

impl Curve for P256

const B: Fp

b = 0x5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b

fn sqrt(x: &Fp) -> Fp

p = 3 mod 4, so a square root is x^((p+1)/4).

const NAME: &'static str = "P-256"

Display name, e.g. "P-256".

const FIELD_BYTES: usize = 32

Width of an encoded field element.

const SCALAR_BYTES: usize = 32

Width of an encoded scalar.

const ORDER_BITS: usize = 256

Bit length of the group order, qlen in RFC 6979.

const GX: Fp

The base point x-coordinate.

const GY: Fp

The base point y-coordinate.

type Field = Fp

The coordinate field, GF(p).

type Scalar = Fn

The scalar ring, Z/nZ.

fn field_from_slice(bytes: &[u8]) -> Option<Fp>

Decode a field element from exactly Self::FIELD_BYTES bytes.

fn scalar_from_slice(bytes: &[u8]) -> Option<Fn>

Decode a scalar from exactly Self::SCALAR_BYTES bytes, rejecting a non-canonical encoding.

fn scalar_reduce_slice(bytes: &[u8]) -> Fn

Decode a scalar, reducing rather than rejecting.

impl Debug for P256

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

Formats the value using the given formatter.

impl EcdsaCurve for P256

const SIGNATURE_ID: &'static str = "ecdsa-p256-sha256"

The ontology identifier of this signature scheme.

type Digest = Sha256

The message digest, at the curve’s security level.

type Hmac = Hmac<Sha256>

HMAC over the same digest, for RFC 6979.

impl HasGeneratorTable for P256

fn mul_generator(scalar: &<Self as Curve>::Scalar) -> Point<Self>

scalar * G.