Struct EcdsaP256 

pub struct EcdsaP256;

ECDSA P-256 signing primitive (trait-dispatched).

sign(sk, msg, sig_out): sk is 32-byte raw scalar, returns DER signature.

Note: signature_len() returns 72, the DER maximum length. Actual DER signatures are variable-length (typically 70–72 bytes). Callers should use the return value of sign() for the true written length.

Trait Implementations

impl Clone for EcdsaP256

fn clone(&self) -> EcdsaP256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EcdsaP256

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

Formats the value using the given formatter.

impl Default for EcdsaP256

fn default() -> EcdsaP256

Returns the “default value” for a type.

impl Signer for EcdsaP256

fn name(&self) -> &'static str

Human-readable algorithm identifier (e.g. "Ed25519").

fn signature_len(&self) -> usize

Fixed signature length in bytes.

fn sign( &self, sk: &[u8], msg: &[u8], sig_out: &mut [u8], ) -> Result<usize, CryptoError>

Sign msg with sk (raw secret-key bytes) and write the signature into sig_out.

impl Copy for EcdsaP256