1 /*
2  * Copyright (C) 2017 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  * Copyright (c) 2017, The Linux Foundation.
18  */
19 
20 /*
21  * Copyright 2010 Giesecke & Devrient GmbH.
22  *
23  * Licensed under the Apache License, Version 2.0 (the "License");
24  * you may not use this file except in compliance with the License.
25  * You may obtain a copy of the License at
26  *
27  *      http://www.apache.org/licenses/LICENSE-2.0
28  *
29  * Unless required by applicable law or agreed to in writing, software
30  * distributed under the License is distributed on an "AS IS" BASIS,
31  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
32  * See the License for the specific language governing permissions and
33  * limitations under the License.
34  */
35 
36 package com.android.se.security;
37 
38 /** Represents the Response received from the Secure Element */
39 public class ResponseApdu {
40 
41     protected int mSw1 = 0x00;
42     protected int mSw2 = 0x00;
43     protected byte[] mData = new byte[0];
44 
ResponseApdu(byte[] respApdu)45     public ResponseApdu(byte[] respApdu) {
46         if (respApdu.length < 2) {
47             return;
48         }
49         if (respApdu.length > 2) {
50             mData = new byte[respApdu.length - 2];
51             System.arraycopy(respApdu, 0, mData, 0, respApdu.length - 2);
52         }
53         mSw1 = 0x00FF & respApdu[respApdu.length - 2];
54         mSw2 = 0x00FF & respApdu[respApdu.length - 1];
55     }
56 
getSW1()57     public int getSW1() {
58         return mSw1;
59     }
60 
getSW2()61     public int getSW2() {
62         return mSw2;
63     }
64 
getSW1SW2()65     public int getSW1SW2() {
66         return (mSw1 << 8) | mSw2;
67     }
68 
getData()69     public byte[] getData() {
70         return mData;
71     }
72 
73     /** Returns true if the Status Words are equal */
isStatus(int sw1sw2)74     public boolean isStatus(int sw1sw2) {
75         return (getSW1SW2() == sw1sw2);
76     }
77 }
78