Trait RandomizedSigner 

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

    // Provided method
    fn sign_with_rng(&self, rng: &mut impl CryptoRngCore, msg: &[u8]) -> S { ... }
}

Sign the given message using the provided external randomness source.

Required Methods

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, 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.

Provided Methods

fn sign_with_rng(&self, rng: &mut impl CryptoRngCore, 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.

Implementations on Foreign Types

impl RandomizedSigner<Signature<NistP521>> for SigningKey

Available on crate feature ecdsa only.

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature<NistP521>, Error>

impl<C> RandomizedSigner<Signature<C>> for SigningKey<C>

where C: PrimeCurve + CurveArithmetic + DigestPrimitive, <C as CurveArithmetic>::Scalar: Invert<Output = CtOption<<C as CurveArithmetic>::Scalar>> + SignPrimitive<C>, <<C as Curve>::FieldBytesSize as Add>::Output: ArrayLength<u8> + Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>, <<<C as Curve>::FieldBytesSize as Add>::Output as Add<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B1>>>::Output: ArrayLength<u8>,

Available on crate feature der only.

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature<C>, Error>

impl<C> RandomizedSigner<Signature<C>> for SigningKey<C>

where SigningKey<C>: RandomizedDigestSigner<<C as DigestPrimitive>::Digest, Signature<C>>, C: PrimeCurve + CurveArithmetic + DigestPrimitive, <C as CurveArithmetic>::Scalar: Invert<Output = CtOption<<C as CurveArithmetic>::Scalar>> + SignPrimitive<C>, <<C as Curve>::FieldBytesSize as Add>::Output: ArrayLength<u8>,

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature<C>, Error>

impl<D> RandomizedSigner<Signature> for BlindedSigningKey<D>

where D: Digest + FixedOutputReset,

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature, Error>

impl<D> RandomizedSigner<Signature> for SigningKey<D>

where D: Digest + FixedOutputReset,

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8], ) -> Result<Signature, Error>

Implementors

impl<D> RandomizedSigner<Signature> for crypto_glue::rsa::pkcs1v15::SigningKey<D>

where D: Digest,