Trait RandomizedSigner 

pub trait RandomizedSigner<S> {
    // Required method
    fn try_sign_with_rng<R: TryCryptoRng + ?Sized>(
        &self,
        rng: &mut R,
        msg: &[u8],
    ) -> Result<S, Error>;

    // Provided method
    fn sign_with_rng<R: CryptoRng + ?Sized>(&self, rng: &mut R, msg: &[u8]) -> S { ... }
}

Sign the given message using the provided external randomness source.

Required Methods

fn try_sign_with_rng<R: TryCryptoRng + ?Sized>( &self, rng: &mut R, msg: &[u8], ) -> Result<S, Error>

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

The main intended use case for signing errors is when communicating with external signers, e.g. cloud KMS, HSMs, or other hardware tokens.

Errors

Returns implementation-specific errors in the event signing failed (e.g. KMS or HSM communication error), or if the provided rng experiences an internal failure.

Provided Methods

fn sign_with_rng<R: CryptoRng + ?Sized>(&self, rng: &mut R, msg: &[u8]) -> S

Sign the given message and return a digital signature

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.

Implementors