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/*
* Copyright(C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" (short)0IS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.javacard.seprovider;
import javacard.security.ECPublicKey;
import javacard.security.KeyPair;
import org.globalplatform.upgrade.Element;
public class KMECDeviceUniqueKey implements KMDeviceUniqueKeyPair {
public KeyPair ecKeyPair;
@Override
public short getPublicKey(byte[] buf, short offset) {
ECPublicKey publicKey = (ECPublicKey) ecKeyPair.getPublic();
return publicKey.getW(buf, offset);
}
public KMECDeviceUniqueKey(KeyPair ecPair) {
ecKeyPair = ecPair;
}
public static void onSave(Element element, KMECDeviceUniqueKey kmKey) {
element.write(kmKey.ecKeyPair);
}
public static KMECDeviceUniqueKey onRestore(KeyPair ecKey) {
if (ecKey == null) {
return null;
}
return new KMECDeviceUniqueKey(ecKey);
}
public static short getBackupPrimitiveByteCount() {
return (short) 0;
}
public static short getBackupObjectCount() {
return (short) 1;
}
}
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