Trait TransactionAuthenticator 

pub trait TransactionAuthenticator {
    // Required methods
    fn get_signature(
        &self,
        pub_key_commitment: PublicKeyCommitment,
        signing_inputs: &SigningInputs,
    ) -> impl FutureMaybeSend<Result<Signature, AuthenticationError>>;
    fn get_public_key(
        &self,
        pub_key_commitment: PublicKeyCommitment,
    ) -> impl FutureMaybeSend<Option<&PublicKey>>;
}

Defines an authenticator for transactions.

The main purpose of the authenticator is to generate signatures for a given message against a key managed by the authenticator. That is, the authenticator maintains a set of public- private key pairs, and can be requested to generate signatures against any of the managed keys.

The public keys are defined by PublicKeyCommitment’s which are the hashes of the actual public keys.

Required Methods

fn get_signature( &self, pub_key_commitment: PublicKeyCommitment, signing_inputs: &SigningInputs, ) -> impl FutureMaybeSend<Result<Signature, AuthenticationError>>

Retrieves a signature for a specific message as a list of Felt.

The request is initiated by the VM as a consequence of the SigToStack advice injector.

• pub_key_commitment: the hash of the public key used for signature generation.
• signing_inputs: description of the message to be singed. The inputs could contain arbitrary data or a TransactionSummary which would describe the changes made to the account up to the point of calling get_signature(). This allows the authenticator to review any alterations to the account prior to signing. It should not be directly used in the signature computation.

fn get_public_key( &self, pub_key_commitment: PublicKeyCommitment, ) -> impl FutureMaybeSend<Option<&PublicKey>>

Retrieves a public key for a specific public key commitment.

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 TransactionAuthenticator for ()

fn get_signature( &self, _pub_key_commitment: PublicKeyCommitment, _signing_inputs: &SigningInputs, ) -> impl FutureMaybeSend<Result<Signature, AuthenticationError>>

fn get_public_key( &self, _pub_key_commitment: PublicKeyCommitment, ) -> impl FutureMaybeSend<Option<&PublicKey>>

Implementors

impl TransactionAuthenticator for BasicAuthenticator

impl TransactionAuthenticator for FilesystemKeyStore

Available on crate feature std only.

impl TransactionAuthenticator for UnreachableAuth