//! See [`PublicKeyExt`].

use curve25519_dalek::{montgomery::MontgomeryPoint, ristretto::RistrettoPoint};

use opaque_ke::keypair::PublicKey;

/// Utility trait to help convert and compare [`opaque_ke::keypair::PublicKey`]

/// to `[u8; 33]`.

pub(crate) trait PublicKeyExt {

	/// Convert [`opaque_ke::keypair::PublicKey`] to `[u8; 33]`.

	fn into_array(self) -> [u8; 33];

	/// Convert [`opaque_ke::keypair::PublicKey`] reference to `[u8; 33]`.

	fn to_array(&self) -> [u8; 33];

	/// Compare [`opaque_ke::keypair::PublicKey`] to `[u8; 33]`.

	fn is_array(&self, key: [u8; 33]) -> bool;

}

impl PublicKeyExt for PublicKey<RistrettoPoint> {

}

impl PublicKeyExt for PublicKey<MontgomeryPoint> {

}

#[cfg(feature = "p256")]

impl PublicKeyExt for PublicKey<super::p256::P256> {

}