/** Construct a key from its components. Used by the ECKeyFactory and SunPKCS11. */
public ECPublicKeyImpl(ECPoint w, ECParameterSpec params) throws InvalidKeyException {
this.w = w;
this.params = params;
// generate the encoding
algid = new AlgorithmId(AlgorithmId.EC_oid, ECParameters.getAlgorithmParameters(params));
key = ECParameters.encodePoint(w, params.getCurve());
}