Struct NistP256 

pub struct NistP256;

Trait Implementations

impl Clone for NistP256

fn clone(&self) -> NistP256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Curve for NistP256

const ORDER: U256 = ORDER

Curve order.

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

32-byte serialized field elements.

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

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

impl CurveArithmetic for NistP256

type ProjectivePoint = P256Point

The ProjectivePoint type is still internally represented as an affine point.

type AffinePoint = P256Point

Elliptic curve point in affine coordinates.

type Scalar = P256Scalar

Scalar field modulo this curve’s order.

impl Debug for NistP256

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

Formats the value using the given formatter.

impl DecompactPoint<NistP256> for P256Point

fn decompact(x_bytes: &FieldBytes<NistP256>) -> CtOption<Self>

Attempt to decompact an elliptic curve point

impl DecompressPoint<NistP256> for P256Point

fn decompress( x_bytes: &FieldBytes<NistP256>, y_is_odd: Choice, ) -> CtOption<Self>

Note that this is not constant time

impl Default for NistP256

fn default() -> NistP256

Returns the “default value” for a type.

impl FieldBytesEncoding<NistP256> for U256

fn decode_field_bytes(field_bytes: &FieldBytes<NistP256>) -> Self

Decode unsigned integer from serialized field element.

fn encode_field_bytes(&self) -> FieldBytes<NistP256>

Encode unsigned integer into serialized field element.

impl FromEncodedPoint<NistP256> for P256Point

fn from_encoded_point(encoded_point: &EncodedPoint) -> CtOption<Self>

Attempts to parse the given EncodedPoint as an SEC1-encoded P256Point.

Returns

None value if encoded_point is not on the secp256k1 curve.

impl IntrinsicCurve for NistP256

type Scalar = P256Scalar

type Point = P256Point

fn msm(coeffs: &[Self::Scalar], bases: &[Self::Point]) -> Self::Point

where for<'a> &'a Self::Point: Add<&'a Self::Point, Output = Self::Point>,

Multi-scalar multiplication. The implementation may be specialized to use properties of the curve (e.g., if the curve order is prime).

impl Ord for NistP256

fn cmp(&self, other: &NistP256) -> 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,

Restrict a value to a certain interval.

impl PartialEq for NistP256

fn eq(&self, other: &NistP256) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for NistP256

fn partial_cmp(&self, other: &NistP256) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PointCompression for NistP256

const COMPRESS_POINTS: bool = false

P256 points are typically uncompressed.

impl ToEncodedPoint<NistP256> for P256Point

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

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

impl VerifyCustomHook<NistP256> for P256Point

fn verify_hook(&self, _z: &[u8], _sig: &Signature<C>) -> Result<(), Error>

This is NOT the full ECDSA signature verification algorithm. The implementer should only add additional verification logic not contained in verify_prehashed. The default implementation does nothing.

impl VerifyPrimitive<NistP256> for P256Point

fn verify_prehashed( &self, z: &FieldBytes<NistP256>, sig: &Signature, ) -> Result<(), Error>

Verify the prehashed message against the provided ECDSA signature.

fn verify_digest<D>( &self, msg_digest: D, sig: &Signature<C>, ) -> Result<(), Error>

where D: FixedOutput<OutputSize = <C as Curve>::FieldBytesSize>,

Verify message digest against the provided signature.

impl Copy for NistP256

impl Eq for NistP256

impl PrimeCurve for NistP256

impl StructuralPartialEq for NistP256