Trait coins_bip32::ecdsa::signature::RandomizedDigestSigner

pub trait RandomizedDigestSigner<D, S> where
    D: Digest,
    S: Signature, {
    pub fn try_sign_digest_with_rng(
        &self, 
        rng: impl CryptoRng + RngCore, 
        digest: D
    ) -> Result<S, Error>;

    pub fn sign_digest_with_rng(
        &self, 
        rng: impl CryptoRng + RngCore, 
        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

pub fn try_sign_digest_with_rng(
    &self,
    rng: impl CryptoRng + RngCore,
    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.

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Provided methods

pub fn sign_digest_with_rng(
    &self,
    rng: impl CryptoRng + RngCore,
    digest: D
) -> S

Sign the given prehashed message Digest, returning a signature.

Panics in the event of a signing error.

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Implementations on Foreign Types

impl<C, D> RandomizedDigestSigner<D, Signature<C>> for SigningKey<C> where
    C: ProjectiveArithmetic + Curve,
    D: FixedOutput<OutputSize = <C as Curve>::FieldSize> + BlockInput + Clone + Default + Reset + Update,
    GenericArray<u8, <C as Curve>::FieldSize>: From<<<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar>,
    GenericArray<u8, <C as Curve>::FieldSize>: for<'r> From<&'r <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar>,
    <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar: PrimeField,
    <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar: FromDigest<C>,
    <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar: Invert,
    <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar: SignPrimitive<C>,
    <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar: Zeroize,
    <<C as Curve>::FieldSize as Add<<C as Curve>::FieldSize>>::Output: ArrayLength<u8>,
    <<<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar as PrimeField>::Repr == GenericArray<u8, <C as Curve>::FieldSize>,
    <<<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar as Invert>::Output == <<C as ProjectiveArithmetic>::ProjectivePoint as Group>::Scalar, 

pub fn try_sign_digest_with_rng(
    &self,
    rng: impl CryptoRng + RngCore,
    digest: D
) -> Result<Signature<C>, Error>

Sign message prehash using an ephemeral scalar (k) derived according to a variant of RFC 6979 (Section 3.6) which supplies additional entropy from an RNG.

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Implementors

impl<D> RandomizedDigestSigner<D, Signature> for coins_bip32::ecdsa::SigningKey where
    D: BlockInput + FixedOutput<OutputSize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>> + Clone + Default + Reset + Update, 

pub fn try_sign_digest_with_rng(
    &self,
    rng: impl CryptoRng + RngCore,
    digest: D
) -> Result<Signature, Error>

impl<D> RandomizedDigestSigner<D, Signature<Secp256k1>> for coins_bip32::ecdsa::SigningKey where
    D: BlockInput + FixedOutput<OutputSize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>> + Clone + Default + Reset + Update, 

pub fn try_sign_digest_with_rng(
    &self,
    rng: impl CryptoRng + RngCore,
    digest: D
) -> Result<Signature<Secp256k1>, Error>

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