Struct sp_application_crypto::ecdsa::Signature

pub struct Signature(_);

A signature (a 512-bit value, plus 8 bits for recovery ID).

Implementations

impl Signature

pub fn from_raw(data: [u8; 65]) -> Signature

A new instance from the given 65-byte data.

NOTE: No checking goes on to ensure this is a real signature. Only use it if you are certain that the array actually is a signature. GIGO!

pub fn from_slice(data: &[u8]) -> Signature

A new instance from the given slice that should be 65 bytes long.

NOTE: No checking goes on to ensure this is a real signature. Only use it if you are certain that the array actually is a signature. GIGO!

pub fn recover<M>(&self, message: M) -> Option<Public> where
    M: AsRef<[u8]>, 

Recover the public key from this signature and a message.

Trait Implementations

impl AsMut<[u8]> for Signature

fn as_mut(&mut self) -> &mut [u8]

Performs the conversion.

impl AsMut<Signature> for Signature

fn as_mut(&mut self) -> &mut Signature

Performs the conversion.

impl AsRef<[u8; 65]> for Signature

fn as_ref(&self) -> &[u8; 65]

Performs the conversion.

impl AsRef<[u8]> for Signature

fn as_ref(&self) -> &[u8]

Performs the conversion.

impl AsRef<Signature> for Signature

fn as_ref(&self) -> &Signature

Performs the conversion.

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 CryptoType for Signature

type Pair = Pair

The pair key type of this crypto.

impl Debug for Signature

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

Formats the value using the given formatter.

impl Decode for Signature

fn decode<DecIn>(input: &mut DecIn) -> Result<Signature, Error> where
    DecIn: Input, 

Attempt to deserialise the value from input.

impl Default for Signature

fn default() -> Signature

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for Signature

fn deserialize<D>(
    deserializer: D
) -> Result<Signature, <D as Deserializer<'de>>::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Encode for Signature

fn encode_to<EncOut>(&self, dest: &mut EncOut) where
    EncOut: Output, 

Convert self to a slice and append it to the destination.

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

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

Convert self to a slice and then invoke the given closure with it.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

impl EncodeLike<Signature> for Signature

impl Eq for Signature

impl From<(Signature, RecoveryId)> for Signature

fn from(x: (Signature, RecoveryId)) -> Signature

Performs the conversion.

impl From<Signature> for Signature

fn from(inner: Signature) -> Self

Performs the conversion.

impl From<Signature> for Signature

fn from(outer: Signature) -> Self

Performs the conversion.

impl Hash for Signature

fn hash<H>(&self, state: &mut H) where
    H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<Signature> for Signature

fn eq(&self, b: &Signature) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PassBy for Signature

type PassBy = Inner<Signature, [u8; 65]>

The strategy that should be used to pass the type.

impl PassByInner for Signature

type Inner = [u8; 65]

The inner type that is wrapped by Self.

fn into_inner(self) -> <Signature as PassByInner>::Inner

Consumes self and returns the inner type.

fn inner(&self) -> &<Signature as PassByInner>::Inner

Returns the reference to the inner type.

fn from_inner(inner: <Signature as PassByInner>::Inner) -> Signature

Construct Self from the given inner.

impl Serialize for Signature

fn serialize<S>(
    &self,
    serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'_> TryFrom<&'_ [u8]> for Signature

type Error = ()

The type returned in the event of a conversion error.

fn try_from(
    data: &[u8]
) -> Result<Signature, <Signature as TryFrom<&'_ [u8]>>::Error>

Performs the conversion.