blob: 8a3e06b7deb1942fea1146774157a2ceac0e79ea (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
* 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.security.keystore;
import java.security.SecureRandom;
/**
* @deprecated Use {@link android.security.keystore.recovery.RecoverySession}.
* @hide
*/
public class RecoverySession implements AutoCloseable {
private static final int SESSION_ID_LENGTH_BYTES = 16;
private final String mSessionId;
private final RecoveryController mRecoveryController;
private RecoverySession(RecoveryController recoveryController, String sessionId) {
mRecoveryController = recoveryController;
mSessionId = sessionId;
}
/**
* A new session, started by {@code recoveryManager}.
*/
static RecoverySession newInstance(RecoveryController recoveryController) {
return new RecoverySession(recoveryController, newSessionId());
}
/**
* Returns a new random session ID.
*/
private static String newSessionId() {
SecureRandom secureRandom = new SecureRandom();
byte[] sessionId = new byte[SESSION_ID_LENGTH_BYTES];
secureRandom.nextBytes(sessionId);
StringBuilder sb = new StringBuilder();
for (byte b : sessionId) {
sb.append(Byte.toHexString(b, /*upperCase=*/ false));
}
return sb.toString();
}
/**
* An internal session ID, used by the framework to match recovery claims to snapshot responses.
*/
String getSessionId() {
return mSessionId;
}
@Override
public void close() {
mRecoveryController.closeSession(this);
}
}
|
