Struct Signature

pub struct Signature { /* private fields */ }

Container of the DSA signature

Implementations

impl Signature

pub fn from_components(r: BoxedUint, s: BoxedUint) -> Option<Self>

Create a new Signature container from its components

pub fn r(&self) -> &NonZero<BoxedUint>

Signature part r

pub fn s(&self) -> &NonZero<BoxedUint>

Signature part s

Trait Implementations

impl Clone for Signature

fn clone(&self) -> Signature

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Signature

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> DecodeValue<'a> for Signature

type Error = Error

Type returned in the event of a decoding error.

fn decode_value<R: Reader<'a>>(reader: &mut R, _header: Header) -> Result<Self>

Attempt to decode this message using the provided Reader.

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

where D: Digest + BlockSizeUser + FixedOutputReset,

fn try_sign_digest(&self, digest: D) -> Result<Signature, Error>

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

fn sign_digest(&self, digest: D) -> S

Sign the given prehashed message Digest, returning a signature.

impl<D> DigestVerifier<D, Signature> for VerifyingKey

where D: Digest,

fn verify_digest(&self, digest: D, signature: &Signature) -> Result<(), Error>

Verify the signature against the given Digest output.

impl EncodeValue for Signature

fn value_len(&self) -> Result<Length>

Compute the length of this value (sans [Tag]+Length header) when encoded as ASN.1 DER.

fn encode_value(&self, writer: &mut impl Writer) -> Result<()>

Encode value (sans [Tag]+Length header) as ASN.1 DER using the provided Writer.

fn header(&self) -> Result<Header, Error>

where Self: Tagged,

Get the Header used to encode this value.

impl From<Signature> for Box<[u8]>

fn from(sig: Signature) -> Box<[u8]>

Converts to this type from the input type.

impl MultipartSigner<Signature> for SigningKey

fn try_multipart_sign(&self, msg: &[&[u8]]) -> Result<Signature, Error>

Equivalent of Signer::try_sign() but the message is provided in non-contiguous byte slices.

fn multipart_sign(&self, msg: &[&[u8]]) -> S

Equivalent of Signer::sign() but the message is provided in non-contiguous byte slices.

impl MultipartVerifier<Signature> for VerifyingKey

fn multipart_verify( &self, msg: &[&[u8]], signature: &Signature, ) -> Result<(), Error>

Equivalent of Verifier::verify() but the message is provided in non-contiguous byte slices.

impl PartialEq for Signature

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Signature

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrehashSigner<Signature> for SigningKey

fn sign_prehash(&self, prehash: &[u8]) -> Result<Signature, Error>

Warning: This uses sha2::Sha256 as the hash function for the digest. If you need to use a different one, use SigningKey::sign_prehashed_rfc6979.

impl PrehashVerifier<Signature> for VerifyingKey

fn verify_prehash( &self, prehash: &[u8], signature: &Signature, ) -> Result<(), Error>

Use Self to verify that the provided signature for a given message prehash is authentic.

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

where D: Digest,

fn try_sign_digest_with_rng<R: TryCryptoRng + ?Sized>( &self, rng: &mut R, digest: D, ) -> Result<Signature, Error>

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

fn sign_digest_with_rng<R>(&self, rng: &mut R, digest: D) -> S

where R: CryptoRng + ?Sized,

Sign the given prehashed message Digest, returning a signature.

impl RandomizedPrehashSigner<Signature> for SigningKey

fn sign_prehash_with_rng<R: TryCryptoRng + ?Sized>( &self, rng: &mut R, prehash: &[u8], ) -> Result<Signature, Error>

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

impl SignatureEncoding for Signature

type Repr = Box<[u8]>

Byte representation of a signature.

fn to_bytes(&self) -> Box<[u8]>

Encode signature as its byte representation.

fn to_vec(&self) -> Vec<u8>

Encode signature as a byte vector.

fn encoded_len(&self) -> usize

Get the length of this signature when encoded.

impl Signer<Signature> for SigningKey

fn try_sign(&self, msg: &[u8]) -> Result<Signature, Error>

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

fn sign(&self, msg: &[u8]) -> S

Sign the given message and return a digital signature

impl TryFrom<&[u8]> for Signature

type Error = Error

The type returned in the event of a conversion error.

fn try_from(bytes: &[u8]) -> Result<Self>

Performs the conversion.

impl Verifier<Signature> for VerifyingKey

fn verify(&self, msg: &[u8], signature: &Signature) -> Result<(), Error>

Use Self to verify that the provided signature for a given message bytestring is authentic.

impl Sequence<'_> for Signature