Struct ed25519_dalek::Signature

pub struct Signature { /* private fields */ }

Ed25519 signature.

This type represents a container for the byte serialization of an Ed25519 signature, and does not necessarily represent well-formed field or curve elements.

Signature verification libraries are expected to reject invalid field elements at the time a signature is verified.

Implementations

impl Signature

pub const BYTE_SIZE: usize = 64usize

Size of an encoded Ed25519 signature in bytes.

pub fn from_bytes(bytes: &[u8; 64]) -> Signature

Parse an Ed25519 signature from a byte slice.

pub fn from_components(R: [u8; 32], s: [u8; 32]) -> Signature

Parse an Ed25519 signature from its R and s components.

pub fn from_slice(bytes: &[u8]) -> Result<Signature, Error>

Parse an Ed25519 signature from a byte slice.

Returns

• Ok on success
• Err if the input byte slice is not 64-bytes

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

Bytes for the R component of a signature.

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

Bytes for the s component of a signature.

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

Return the inner byte array.

pub fn to_vec(&self) -> Vec<u8, Global>

Available on crate feature alloc only.

Convert this signature into a byte vector.

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Signature

Returns a copy 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 Display for Signature

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

Formats the value using the given formatter.

impl From<&[u8; 64]> for Signature

fn from(bytes: &[u8; 64]) -> Signature

Converts to this type from the input type.

impl From<[u8; 64]> for Signature

fn from(bytes: [u8; 64]) -> Signature

Converts to this type from the input type.

impl FromStr for Signature

Decode a signature from hexadecimal.

Upper and lower case hexadecimal are both accepted, however mixed case is rejected.

type Err = Error

The associated error which can be returned from parsing.

fn from_str(hex: &str) -> Result<Signature, Error>

Parses a string s to return a value of this type.

impl LowerHex for Signature

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

Formats the value using the given formatter.

impl PartialEq<Signature> for Signature

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

type Repr = [u8; 64]

Byte representation of a signature.

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

Encode signature as its byte representation.

fn to_vec(&self) -> Vec<u8, Global>

Available on crate feature alloc only.

Encode signature as a byte vector.

impl Signer<Signature> for SigningKey

fn try_sign(&self, message: &[u8]) -> Result<Signature, SignatureError>

Sign a message with this signing key’s secret key.

fn sign(&self, msg: &[u8]) -> S

Sign the given message and return a digital signature

impl TryFrom<&[u8]> for Signature

type Error = Error

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8]) -> Result<Signature, Error>

Performs the conversion.

impl UpperHex for Signature

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

Formats the value using the given formatter.

impl Verifier<Signature> for SigningKey

fn verify( &self, message: &[u8], signature: &Signature ) -> Result<(), SignatureError>

Verify a signature on a message with this signing key’s public key.

impl Verifier<Signature> for VerifyingKey

fn verify( &self, message: &[u8], signature: &Signature ) -> Result<(), SignatureError>

Verify a signature on a message with this keypair’s public key.

Return

Returns Ok(()) if the signature is valid, and Err otherwise.

impl Copy for Signature

impl Eq for Signature

impl StructuralEq for Signature

impl StructuralPartialEq for Signature