Struct EcdsaSigner

pub struct EcdsaSigner<'a> { /* private fields */ }

Available on crate feature ecdsa only.

Create a signer for ECDSA signatures.

Implementations

impl<'a> EcdsaSigner<'a>

pub fn new(signing_key: Cow<'a, SigningKey>) -> Self

Create a new signer.

pub fn from_slice(signing_key: &[u8]) -> Result<SigningKey>

Initialize a signing key from a byte slice.

pub fn random() -> SigningKey

Generate a random private signing key.

pub fn sign_recoverable( &self, message: &[u8], ) -> Result<(Signature, RecoveryId)>

Sign the given message, hashing it with the curve’s default digest function, and returning a signature and recovery ID.

pub fn sign_prehash_recoverable( &self, prehash: &[u8], ) -> Result<(Signature, RecoveryId)>

Sign the given message prehash, returning a signature and recovery ID.

pub fn sign(&self, message: &[u8]) -> Signature

Sign a message.

pub fn verifying_key(&self) -> &VerifyingKey

Verifying key for this signer.

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

Verify a message.

pub fn verify_prehash( &self, prehash: &[u8], signature: &Signature, ) -> Result<()>

Verify a prehash message.

pub fn sign_eth(&self, message: &[u8]) -> Result<(Signature, RecoveryId)>

Sign a message for Ethereum first hashing the message with the Keccak256 digest.

pub fn sign_eth_message<B: AsRef<[u8]>>( &self, message: B, ) -> Result<(Signature, RecoveryId)>

Sign an Ethereum message.

pub fn recover( message: &[u8], signature: RecoverableSignature, ) -> Result<VerifyingKey>

Recover the public key from a signature and recovery identifier.

pub fn hash_message<T: AsRef<[u8]>>(message: T) -> impl Digest

Hash a message according to EIP-191 (version 0x01).

The final message is a UTF-8 string, encoded as follows: "\x19Ethereum Signed Message:\n" + message.length + message

This message is then hashed using Keccak-256.