Struct PublicKey 

pub struct PublicKey { /* private fields */ }

P-224 (secp224r1) ECDSA public key.

Supports signature verification and ECDH key agreement. Both compressed (29-byte) and uncompressed (57-byte) SEC1 encodings are accepted on input; use to_bytes to export uncompressed, and to_compressed_bytes to export compressed.

Verification

use crypto::p224::SecretKey;

let key = SecretKey::generate().unwrap();
let signature = key.sign(b"message").unwrap();
assert!(key.public_key().verify(b"message", &signature).is_ok());

Implementations

impl PublicKey

pub fn from_bytes(key: &[u8]) -> Result<PublicKey, EllipticCurveError>

pub fn from_x_y( x_bytes: &[u8; 28], y_bytes: &[u8; 28], ) -> Result<PublicKey, EllipticCurveError>

Build a public key from raw affine x and y coordinates (both big-endian, 28 bytes each). Returns InvalidKey if the coordinates are not a valid point on the P-224 curve.

This is useful when importing keys from formats like JWK where x and y are available directly.

pub fn verify( &self, message: &[u8], signature: &[u8; 56], ) -> Result<(), EllipticCurveError>

pub fn to_bytes(&self) -> [u8; 57]

pub fn to_compressed_bytes(&self) -> [u8; 29]

Returns the 29-byte compressed SEC1 encoding (0x02/0x03 || x).

Errors

A valid PublicKey always has a compressed encoding, so this never returns Err; the Result mirrors the other fallible key operations.

pub fn x_y(&self) -> ([u8; 28], [u8; 28])

Returns the X and Y points as big-endian arrays.

Trait Implementations

impl Clone for PublicKey

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PublicKey

impl Debug for PublicKey

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

Formats the value using the given formatter.

impl Eq for PublicKey

impl PartialEq for PublicKey

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PublicKey