Trait RandomizedDigestSigner

pub trait RandomizedDigestSigner<D, S>
where
    D: Digest,
{
    // Required method
    fn try_sign_digest_with_rng(
        &self,
        rng: &mut impl CryptoRngCore,
        digest: D,
    ) -> Result<S, Error>;

    // Provided method
    fn sign_digest_with_rng(&self, rng: &mut impl CryptoRngCore, digest: D) -> S { ... }
}

Combination of DigestSigner and RandomizedSigner with support for computing a signature over a digest which requires entropy from an RNG.

Required Methods

fn try_sign_digest_with_rng( &self, rng: &mut impl CryptoRngCore, digest: D, ) -> Result<S, Error>

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

Provided Methods

fn sign_digest_with_rng(&self, rng: &mut impl CryptoRngCore, digest: D) -> S

Sign the given prehashed message Digest, returning a signature.

Panics in the event of a signing error.

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<C, D> RandomizedDigestSigner<D, Signature<C>> for SigningKey<C>

where C: PrimeCurve + CurveArithmetic + DigestPrimitive, D: Digest<OutputSize = <C as Curve>::FieldBytesSize> + FixedOutput, <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>,

fn try_sign_digest_with_rng( &self, rng: &mut impl CryptoRngCore, msg_digest: D, ) -> Result<Signature<C>, Error>

impl<C, D> RandomizedDigestSigner<D, Signature<C>> for SigningKey<C>

where C: PrimeCurve + CurveArithmetic + DigestPrimitive, D: Digest<OutputSize = <C as Curve>::FieldBytesSize> + FixedOutput, <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_digest_with_rng( &self, rng: &mut impl CryptoRngCore, msg_digest: D, ) -> Result<Signature<C>, Error>

impl<D> RandomizedDigestSigner<D, Signature> for SigningKey

where D: Digest<OutputSize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>> + FixedOutput,

fn try_sign_digest_with_rng( &self, rng: &mut impl CryptoRngCore, digest: D, ) -> Result<Signature, Error>

Implementors