Trait P256Ecdh 

pub trait P256Ecdh {
    // Required methods
    fn public_key(k: &P256Scalar) -> Result<P256Point, Error>;
    fn shared_secret(
        k: &P256Scalar,
        peer: &P256Point,
    ) -> Result<[u8; 32], Error>;
}

P-256 (secp256r1) ECDH driver.

Contract

• Private scalars are canonical and nonzero; other values return Error::InvalidKey.
• No secret-dependent timing with respect to the private scalar.
• Implementations wipe copies of secrets they materialize in RAM.

Required Methods

fn public_key(k: &P256Scalar) -> Result<P256Point, Error>

The public key k * G of the private scalar k.

fn shared_secret(k: &P256Scalar, peer: &P256Point) -> Result<[u8; 32], Error>

The shared secret: X coordinate of k * peer.

peer is untrusted: implementations validate that it is a point on the curve and return Error::InvalidKey otherwise.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors