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      1 /*
      2  * Copyright (C) 2016 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.keymaster;
     18 
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 
     22 /**
     23  * @hide
     24  * The information aggregated by this class is used by keystore to identify a caller of the
     25  * keystore API toward a remote party. It aggregates multiple PackageInfos because keystore
     26  * can only determine a caller by uid granularity, and a uid can be shared by multiple packages.
     27  * The remote party must decide if it trusts all of the packages enough to consider the
     28  * confidentiality of the key material in question intact.
     29  */
     30 public class KeyAttestationApplicationId implements Parcelable {
     31     private final KeyAttestationPackageInfo[] mAttestationPackageInfos;
     32 
     33     /**
     34      * @param mAttestationPackageInfos
     35      */
     36     public KeyAttestationApplicationId(KeyAttestationPackageInfo[] mAttestationPackageInfos) {
     37         super();
     38         this.mAttestationPackageInfos = mAttestationPackageInfos;
     39     }
     40 
     41     /**
     42      * @return the mAttestationPackageInfos
     43      */
     44     public KeyAttestationPackageInfo[] getAttestationPackageInfos() {
     45         return mAttestationPackageInfos;
     46     }
     47 
     48     @Override
     49     public int describeContents() {
     50         return 0;
     51     }
     52 
     53     @Override
     54     public void writeToParcel(Parcel dest, int flags) {
     55         dest.writeTypedArray(mAttestationPackageInfos, flags);
     56     }
     57 
     58     public static final Parcelable.Creator<KeyAttestationApplicationId> CREATOR
     59             = new Parcelable.Creator<KeyAttestationApplicationId>() {
     60         @Override
     61         public KeyAttestationApplicationId createFromParcel(Parcel source) {
     62             return new KeyAttestationApplicationId(source);
     63         }
     64 
     65         @Override
     66         public KeyAttestationApplicationId[] newArray(int size) {
     67             return new KeyAttestationApplicationId[size];
     68         }
     69     };
     70 
     71     KeyAttestationApplicationId(Parcel source) {
     72         mAttestationPackageInfos = source.createTypedArray(KeyAttestationPackageInfo.CREATOR);
     73     }
     74 }
     75