Struct EcdsaSignature

pub struct EcdsaSignature {
    pub(crate) expanded_sig: Vec<u8>,
}

A signature for ECDSA cryptographic operations.

This struct encapsulates the components of an ECDSA signature, which include the ‘r’ and ‘s’ values as byte arrays, a ‘v’ recovery id, and the signature in DER encoding. The ‘r’ and ‘s’ components are the main parts of the signature, ‘v’ is used to recover the public key from the signature, and the DER encoding is used for compatibility with systems that require the signature in ASN.1/DER format.

Fields

expanded_sig: Vec<u8>

Implementations

impl EcdsaSignature

pub(crate) const FIELD_SIZE: usize = 32usize

The size of a field element in bytes (32 bytes for secp256k1).

pub(crate) const MIN_SIZE: usize = 73usize

Minimum size: 2 field elements + minimum 8 DER bytes + 1 v byte.

pub(crate) const MAX_SIZE: usize = 137usize

Maximum size: 2 field elements + maximum 72 DER bytes + 1 v byte.

pub fn r(&self) -> [u8; 32]

Returns the ‘r’ component of the ECDSA signature.

pub fn s(&self) -> [u8; 32]

Returns the ‘s’ component of the ECDSA signature.

pub fn v(&self) -> u8

Returns the ‘v’ value (recovery ID) of the ECDSA signature.

pub fn der(&self) -> &[u8]

Returns the DER-encoded representation of the ECDSA signature.

pub fn compact(&self) -> [u8; 64]

Returns the compact representation of the ECDSA signature as a 64-byte array. This is equivilant to self.r() || self.s()

Trait Implementations

impl Clone for EcdsaSignature

fn clone(&self) -> EcdsaSignature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EcdsaSignature

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

Formats the value using the given formatter.

impl FromFFI for EcdsaSignature

fn parse_ffi<'a>(s: impl Into<Cow<'a, str>>) -> Self

Parses this type from an FFI string representation.

impl PartialEq for EcdsaSignature

fn eq(&self, other: &EcdsaSignature) -> 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 Eq for EcdsaSignature

impl StructuralPartialEq for EcdsaSignature