Home | History | Annotate | Download | only in keystore 
      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.keystore;
     18 
     19 import java.security.Key;
     20 
     21 /**
     22  * {@link Key} backed by Android Keystore.
     23  *
     24  * @hide
     25  */
     26 public class AndroidKeyStoreKey implements Key {
     27     private final String mAlias;
     28     private final int mUid;
     29     private final String mAlgorithm;
     30 
     31     public AndroidKeyStoreKey(String alias, int uid, String algorithm) {
     32         mAlias = alias;
     33         mUid = uid;
     34         mAlgorithm = algorithm;
     35     }
     36 
     37     String getAlias() {
     38         return mAlias;
     39     }
     40 
     41     int getUid() {
     42         return mUid;
     43     }
     44 
     45     @Override
     46     public String getAlgorithm() {
     47         return mAlgorithm;
     48     }
     49 
     50     @Override
     51     public String getFormat() {
     52         // This key does not export its key material
     53         return null;
     54     }
     55 
     56     @Override
     57     public byte[] getEncoded() {
     58         // This key does not export its key material
     59         return null;
     60     }
     61 
     62     @Override
     63     public int hashCode() {
     64         final int prime = 31;
     65         int result = 1;
     66         result = prime * result + ((mAlgorithm == null) ? 0 : mAlgorithm.hashCode());
     67         result = prime * result + ((mAlias == null) ? 0 : mAlias.hashCode());
     68         result = prime * result + mUid;
     69         return result;
     70     }
     71 
     72     @Override
     73     public boolean equals(Object obj) {
     74         if (this == obj) {
     75             return true;
     76         }
     77         if (obj == null) {
     78             return false;
     79         }
     80         if (getClass() != obj.getClass()) {
     81             return false;
     82         }
     83         AndroidKeyStoreKey other = (AndroidKeyStoreKey) obj;
     84         if (mAlgorithm == null) {
     85             if (other.mAlgorithm != null) {
     86                 return false;
     87             }
     88         } else if (!mAlgorithm.equals(other.mAlgorithm)) {
     89             return false;
     90         }
     91         if (mAlias == null) {
     92             if (other.mAlias != null) {
     93                 return false;
     94             }
     95         } else if (!mAlias.equals(other.mAlias)) {
     96             return false;
     97         }
     98         if (mUid != other.mUid) {
     99             return false;
    100         }
    101         return true;
    102     }
    103 }
    104