Struct P521Algo 

pub struct P521Algo;

NIST P-521 (secp521r1) signature adapter.

Implementations

impl P521Algo

pub fn derive_shared_secret( secret_key: &[u8], public_key: &[u8], ) -> Result<Zeroizing<Vec<u8>>, AlgorithmError>

Derive the P-521 ECDH shared secret; the returned value zeroizes on drop and must be passed through a protocol KDF before key use.

Trait Implementations

impl SignatureAlgorithm for P521Algo

const ALG: Algorithm = Algorithm::P521

The algorithm selector this adapter implements.

fn generate_keypair() -> Result<(Vec<u8>, Zeroizing<Vec<u8>>), AlgorithmError>

Generate a keypair, returning (public_key, secret_key); the secret zeroizes on drop.

fn sign(secret: &[u8], msg: &[u8]) -> Result<Vec<u8>, AlgorithmError>

Sign msg with secret, returning the detached signature bytes.

fn verify(public: &[u8], msg: &[u8], sig: &[u8]) -> Result<(), AlgorithmError>

Verify sig over msg against public; invalid signatures fail closed.