Struct Signature 

pub struct Signature { /* private fields */ }

NIST P-256 signature.

TODO: It seems we might be able to use the p256 machinery for this, instead of reimplementing it ourselves.

Implementations

impl Signature

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

Decode signature as big-endian r, then big-endian s, without framing.

Necessarily, bytes must be of length 64, and r and s must be integers in the range 1..=n-1, otherwise decoding fails.

pub fn to_untagged_bytes(&self) -> [u8; 64]

Encode signature from big-endian r, then big-endian s, without framing.

pub fn to_sec1_bytes(&self, buffer: &mut [u8; 72]) -> usize

Available on crate feature sec1-signatures only.

Encode signature as ASN.1 DER, returning length.

This means interpreting signature as a SEQUENCE of (unsigned) INTEGERs, as defined under the name of ECDSA-Sig-Value in SEC 1, section C.5.

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.