Struct SignerBuilder

pub struct SignerBuilder { /* private fields */ }

Allow to build Single Or Multi signers to generate a single signature or aggregate them

Implementations

impl SignerBuilder

pub fn new( registered_signers: &[SignerWithStake], protocol_parameters: &ProtocolParameters, ) -> StdResult<Self>

SignerBuilder constructor.

pub fn build_multi_signer(&self) -> MultiSigner

Build a MultiSigner based on the registered parties

pub fn compute_aggregate_verification_key( &self, ) -> ProtocolAggregateVerificationKey

Compute aggregate verification key from stake distribution

pub fn build_single_signer( &self, signer_with_stake: SignerWithStake, kes_secret_key_path: Option<&Path>, ) -> StdResult<(SingleSigner, ProtocolInitializer)>

Build non deterministic SingleSigner and ProtocolInitializer based on the registered parties.

pub fn build_test_single_signer( &self, signer_with_stake: SignerWithStake, kes_secret_key_path: Option<&Path>, ) -> StdResult<(SingleSigner, ProtocolInitializer)>

Build deterministic SingleSigner and ProtocolInitializer based on the registered parties.

Use for TEST ONLY.

pub fn restore_signer_from_initializer( &self, party_id: PartyId, protocol_initializer: ProtocolInitializer, ) -> StdResult<SingleSigner>

Restore a SingleSigner based on the registered parties and the given protocol_initializer.

This is useful since each protocol initializer holds a unique secret key that corresponds to a registration key sent to an aggregator.

The actual signing of message is done at a later epoch.

The SignerBuilder used must be tied to the key registration, stake distribution and protocol parameters of the epoch during which the given protocol initializer was created.

Trait Implementations

impl Debug for SignerBuilder

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

Formats the value using the given formatter.