Trait coins_bip32::ecdsa::signature::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

Implementations on Foreign Types

impl RandomizedSigner<Signature> for SigningKey

fn try_sign_with_rng( &self, rng: &mut impl CryptoRngCore, msg: &[u8] ) -> Result<Signature, 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<<C as Curve>::FieldBytesSize>>::Output: ArrayLength<u8>,

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

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

Implementors