Trait signature::hazmat::RandomizedPrehashSigner

pub trait RandomizedPrehashSigner<S: Signature> {
    // Required method
    fn sign_prehash_with_rng(
        &self,
        rng: impl CryptoRng + RngCore,
        prehash: &[u8]
    ) -> Result<S, Error>;
}

Sign the provided message prehash using the provided external randomness source, returning a digital signature.

Required Methods

fn sign_prehash_with_rng( &self, rng: impl CryptoRng + RngCore, prehash: &[u8] ) -> Result<S, Error>

Attempt to sign the given message digest, returning a digital signature on success, or an error if something went wrong.

The prehash parameter should be the output of a secure cryptographic hash function.

This API takes a prehash byte slice as there can potentially be many compatible lengths for the message digest for a given concrete signature algorithm.

Allowed lengths are algorithm-dependent and up to a particular implementation to decide.

Implementors