Trait SigningKey

pub trait SigningKey<T>: Sized
where
    T: Algorithm<SigningKey = Self>,
{
    // Required methods
    fn from_slice(raw: &[u8]) -> Result<Self>;
    fn to_verifying_key(&self) -> T::VerifyingKey;
    fn as_bytes(&self) -> SecretBytes<'_>;
}

Signing key for a specific signature cryptosystem. In the case of public-key cryptosystems, this is a private key.

This trait provides a uniform interface for different backends / implementations of the same cryptosystem.

Required Methods

fn from_slice(raw: &[u8]) -> Result<Self>

Creates a key from raw bytes. Returns an error if the bytes do not represent a valid key.

fn to_verifying_key(&self) -> T::VerifyingKey

Converts a signing key to a verification key.

fn as_bytes(&self) -> SecretBytes<'_>

Returns the key as raw bytes.

Implementations should return Cow::Borrowed whenever possible (that is, if the bytes are actually stored within the implementing data structure).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl SigningKey<Ed25519> for SecretKey

fn from_slice(raw: &[u8]) -> Result<Self>

fn to_verifying_key(&self) -> PublicKey

fn as_bytes(&self) -> SecretBytes<'_>

impl SigningKey<Es256> for SigningKey

fn from_slice(raw: &[u8]) -> Result<Self>

fn to_verifying_key(&self) -> VerifyingKey

fn as_bytes(&self) -> SecretBytes<'_>

impl SigningKey<Es256k> for SecretKey

This implementation initializes a libsecp256k1 context once on the first call to to_verifying_key if it was not initialized previously.

fn from_slice(raw: &[u8]) -> Result<Self>

fn to_verifying_key(&self) -> PublicKey

fn as_bytes(&self) -> SecretBytes<'_>

Implementors

impl SigningKey<Hs256> for Hs256Key

impl SigningKey<Hs384> for Hs384Key

impl SigningKey<Hs512> for Hs512Key