pub const BlindPublicKey = struct {
    /// Public key equivalent, that can used for signature verification.
    key: PublicKey,

    /// Recover a public key from a blind version of it.
    pub fn unblind(blind_public_key: BlindPublicKey, blind_seed: [blind_seed_length]u8, ctx: []const u8) (IdentityElementError || NonCanonicalError || EncodingError || WeakPublicKeyError)!PublicKey {
        const blind_h = blindCtx(blind_seed, ctx);
        const inv_blind_factor = Scalar.fromBytes(blind_h[0..32].*).invert().toBytes();
        const pk_p = try (try Curve.fromBytes(blind_public_key.key.bytes)).mul(inv_blind_factor);
        return PublicKey.fromBytes(pk_p.toBytes());
    }
}