| /* |
| * Copyright (C) 2018 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.hardware.biometrics; |
| |
| import android.annotation.NonNull; |
| import android.security.keystore.AndroidKeyStoreProvider; |
| |
| import java.security.Signature; |
| |
| import javax.crypto.Cipher; |
| import javax.crypto.Mac; |
| |
| /** |
| * A wrapper class for the crypto objects supported by FingerprintManager. Currently the |
| * framework supports {@link Signature}, {@link Cipher} and {@link Mac} objects. |
| * @hide |
| */ |
| public class CryptoObject { |
| private final Object mCrypto; |
| |
| public CryptoObject(@NonNull Signature signature) { |
| mCrypto = signature; |
| } |
| |
| public CryptoObject(@NonNull Cipher cipher) { |
| mCrypto = cipher; |
| } |
| |
| public CryptoObject(@NonNull Mac mac) { |
| mCrypto = mac; |
| } |
| |
| /** |
| * Get {@link Signature} object. |
| * @return {@link Signature} object or null if this doesn't contain one. |
| */ |
| public Signature getSignature() { |
| return mCrypto instanceof Signature ? (Signature) mCrypto : null; |
| } |
| |
| /** |
| * Get {@link Cipher} object. |
| * @return {@link Cipher} object or null if this doesn't contain one. |
| */ |
| public Cipher getCipher() { |
| return mCrypto instanceof Cipher ? (Cipher) mCrypto : null; |
| } |
| |
| /** |
| * Get {@link Mac} object. |
| * @return {@link Mac} object or null if this doesn't contain one. |
| */ |
| public Mac getMac() { |
| return mCrypto instanceof Mac ? (Mac) mCrypto : null; |
| } |
| |
| /** |
| * @hide |
| * @return the opId associated with this object or 0 if none |
| */ |
| public final long getOpId() { |
| return mCrypto != null |
| ? AndroidKeyStoreProvider.getKeyStoreOperationHandle(mCrypto) : 0; |
| } |
| }; |