Trait aleph_bft::KeyBox[−][src]

pub trait KeyBox: Index + Clone + Send + Sync + 'static {
    type Signature: Signature;
    fn node_count(&self) -> NodeCount;
    fn sign<'life0, 'life1, 'async_trait>(
        &'life0 self, 
        msg: &'life1 [u8]
    ) -> Pin<Box<dyn Future<Output = Self::Signature> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        'life1: 'async_trait,
        Self: 'async_trait;
    fn verify(
        &self, 
        msg: &[u8], 
        sgn: &Self::Signature, 
        index: NodeIndex
    ) -> bool;
}

Expand description

Abstraction of the signing data and verifying signatures.

A typical implementation of KeyBox would be a collection of N public keys, an index i and a single private key corresponding to the public key number i. The meaning of sign is then to produce a signature s using the given private key, and verify(msg, s, j) is to verify whether the signature s under the message msg is correct with respect to the public key of the jth node.