Struct Signature 

pub struct Signature { /* private fields */ }

ECDSA signature over secp256k1 curve using Keccak to hash the messages when signing.

Serialization Formats

This implementation supports 2 serialization formats:

Custom Format (66 bytes):

• Bytes 0-31: r component (32 bytes, big-endian)
• Bytes 32-63: s component (32 bytes, big-endian)
• Byte 64: recovery ID (v) - values 0-3

SEC1 Format (64 bytes):

• Bytes 0-31: r component (32 bytes, big-endian)
• Bytes 32-63: s component (32 bytes, big-endian)
• Note: Recovery ID

Implementations

impl Signature

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

Returns the r scalar of this signature.

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

Returns the s scalar of this signature.

pub fn v(&self) -> u8

Returns the v component of this signature, which is a u8 representing the recovery id.

pub fn verify(&self, message: Word, pub_key: &PublicKey) -> bool

Verifies this signature against a message and public key.

pub fn to_sec1_bytes(&self) -> [u8; 64]

Converts signature to SEC1 format (standard 64-byte r||s format).

This format is the standard one used by most ECDSA libraries but loses the recovery ID.

pub fn from_sec1_bytes_and_recovery_id( bytes: [u8; 64], recovery_id: u8, ) -> Result<Signature, DeserializationError>

Creates a signature from SEC1 format bytes with a given recovery id.

Arguments

• bytes - 64-byte array containing r and s components
• recovery_id - recovery ID (0-3)

pub fn from_der( bytes: &[u8], recovery_id: u8, ) -> Result<Signature, DeserializationError>

Creates a signature from ASN.1 DER format bytes with a given recovery id.

Arguments

• bytes - ASN.1 DER format bytes
• recovery_id - recovery ID (0-3)

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Signature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Signature

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

Formats the value using the given formatter.

impl Deserializable for Signature

fn read_from<R>(source: &mut R) -> Result<Signature, DeserializationError>

where R: ByteReader,

Reads a sequence of bytes from the provided source, attempts to deserialize these bytes into Self, and returns the result.

fn min_serialized_size() -> usize

Returns the minimum serialized size for one instance of this type.

fn read_from_bytes(bytes: &[u8]) -> Result<Self, DeserializationError>

Attempts to deserialize the provided bytes into Self and returns the result.

fn read_from_bytes_with_budget( bytes: &[u8], budget: usize, ) -> Result<Self, DeserializationError>

Deserializes Self from bytes with a byte budget limit.

impl PartialEq for Signature

fn eq(&self, other: &Signature) -> 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 Serializable for Signature

fn write_into<W>(&self, target: &mut W)

where W: ByteWriter,

Serializes self into bytes and writes these bytes into the target.

fn to_bytes(&self) -> Vec<u8>

Serializes self into a vector of bytes.

fn get_size_hint(&self) -> usize

Returns an estimate of how many bytes are needed to represent self.

impl Eq for Signature

impl StructuralPartialEq for Signature