keystore/java/android/security/keystore2/AndroidKeyStoreRSAPrivateKey.java

/*
 * Copyright (C) 2015 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" BASIS,
 * 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 android.security.keystore2;

import android.annotation.NonNull;
import android.security.KeyStoreSecurityLevel;
import android.security.keystore.KeyProperties;
import android.system.keystore2.Authorization;
import android.system.keystore2.KeyDescriptor;

import java.math.BigInteger;
import java.security.PrivateKey;
import java.security.interfaces.RSAKey;

/**
 * RSA private key (instance of {@link PrivateKey} and {@link RSAKey}) backed by keystore.
 *
 * @hide
 */
public class AndroidKeyStoreRSAPrivateKey extends AndroidKeyStorePrivateKey implements RSAKey {

    private final BigInteger mModulus;


    public AndroidKeyStoreRSAPrivateKey(@NonNull KeyDescriptor descriptor,
            long keyId,
            @NonNull Authorization[] authorizations,
            @NonNull KeyStoreSecurityLevel securityLevel, @NonNull BigInteger modulus) {
        super(descriptor, keyId, authorizations, KeyProperties.KEY_ALGORITHM_RSA, securityLevel);
        mModulus = modulus;
    }

    @Override
    public BigInteger getModulus() {
        return mModulus;
    }
}