1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.security.keystore2;
18 
19 import android.annotation.NonNull;
20 import android.security.KeyStoreSecurityLevel;
21 import android.security.keystore.KeyProperties;
22 import android.system.keystore2.Authorization;
23 import android.system.keystore2.KeyDescriptor;
24 
25 import java.math.BigInteger;
26 import java.security.PrivateKey;
27 import java.security.interfaces.RSAKey;
28 
29 /**
30  * RSA private key (instance of {@link PrivateKey} and {@link RSAKey}) backed by keystore.
31  *
32  * @hide
33  */
34 public class AndroidKeyStoreRSAPrivateKey extends AndroidKeyStorePrivateKey implements RSAKey {
35 
36     private final BigInteger mModulus;
37 
38 
AndroidKeyStoreRSAPrivateKey(@onNull KeyDescriptor descriptor, long keyId, @NonNull Authorization[] authorizations, @NonNull KeyStoreSecurityLevel securityLevel, @NonNull BigInteger modulus)39     public AndroidKeyStoreRSAPrivateKey(@NonNull KeyDescriptor descriptor,
40             long keyId,
41             @NonNull Authorization[] authorizations,
42             @NonNull KeyStoreSecurityLevel securityLevel, @NonNull BigInteger modulus) {
43         super(descriptor, keyId, authorizations, KeyProperties.KEY_ALGORITHM_RSA, securityLevel);
44         mModulus = modulus;
45     }
46 
47     @Override
getModulus()48     public BigInteger getModulus() {
49         return mModulus;
50     }
51 }
52