Struct Signature

pub struct Signature { /* private fields */ }

Available on crate feature dsa only.

BignP256 Signature.

Implementations

impl Signature

pub const BYTE_SIZE: usize = 48usize

Size of an encoded BignP256 signature in bytes.

pub fn from_bytes(bytes: &SignatureBytes) -> Result<Self>

Parse an BignP256 signature from a byte array.

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

Parse an BignP256 signature from a byte slice.

pub fn from_scalars( s0: impl Into<FieldBytes>, s1: impl Into<FieldBytes>, ) -> Result<Self>

Create a Signature from the serialized s0 and s1 scalar values which comprise the signature.

pub fn to_bytes(&self) -> SignatureBytes

Serialize this signature as bytes.

pub fn s0_bytes(&self) -> FieldBytes

Bytes for the s0 component of a signature.

pub fn s1_bytes(&self) -> FieldBytes

Bytes for the s1 component of a signature.

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

Available on crate feature alloc only.

Convert this signature into a byte vector.

impl Signature

pub fn s0(&self) -> NonZeroScalar

Available on crate feature arithmetic only.

Get the s0 word component of this signature

pub fn s1(&self) -> NonZeroScalar

Available on crate feature arithmetic only.

Get the s1 word component of this signature

pub fn split_scalars(&self) -> (NonZeroScalar, NonZeroScalar)

Available on crate feature arithmetic only.

Split the signature into its s0 and s1 scalars.

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 From<&Signature> for SignatureBytes

fn from(signature: &Signature) -> SignatureBytes

Converts to this type from the input type.

impl From<Signature> for SignatureBytes

fn from(signature: Signature) -> SignatureBytes

Converts to this type from the input type.

impl PartialEq for Signature

fn eq(&self, other: &Signature) -> 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 PrehashSigner<Signature> for SigningKey

Available on crate feature arithmetic only.

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

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

impl PrehashVerifier<Signature> for VerifyingKey

Available on crate feature arithmetic only.

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

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

impl SignatureEncoding for Signature

type Repr = [u8; 48]

Byte representation of a signature.

fn to_bytes(&self) -> Self::Repr

Encode signature as its byte representation.

fn encoded_len(&self) -> usize

Get the length of this signature when encoded.

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

Encode signature as a byte vector.

impl Signer<Signature> for SigningKey

Available on crate feature arithmetic only.

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

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<Signature>

Performs the conversion.

impl TryFrom<&[u8; 48]> for Signature

type Error = Error

The type returned in the event of a conversion error.

fn try_from(signature: &SignatureBytes) -> Result<Signature>

Performs the conversion.

impl TryFrom<[u8; 48]> for Signature

type Error = Error

The type returned in the event of a conversion error.

fn try_from(signature: SignatureBytes) -> Result<Signature>

Performs the conversion.

impl Verifier<Signature> for VerifyingKey

Available on crate feature arithmetic only.

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

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

impl Copy for Signature

impl Eq for Signature

impl StructuralPartialEq for Signature