Credentials.java revision c5e630a004d144ba1d4cd1d37dd98eb70a7ec1d8 
1/*
2 * Copyright (C) 2009 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
17package android.security;
18
19import android.content.ActivityNotFoundException;
20import android.content.Context;
21import android.content.Intent;
22import android.util.Log;
23
24import java.security.KeyPair;
25
26/**
27 * {@hide}
28 */
29public class Credentials {
30    private static final String LOGTAG = "Credentials";
31
32    public static final String UNLOCK_ACTION = "android.credentials.UNLOCK";
33
34    public static final String INSTALL_ACTION = "android.credentials.INSTALL";
35
36    public static final String SYSTEM_INSTALL_ACTION = "android.credentials.SYSTEM_INSTALL";
37
38    /** Key prefix for CA certificates. */
39    public static final String CA_CERTIFICATE = "CACERT_";
40
41    /** Key prefix for user certificates. */
42    public static final String USER_CERTIFICATE = "USRCERT_";
43
44    /** Key prefix for user private keys. */
45    public static final String USER_PRIVATE_KEY = "USRPKEY_";
46
47    /** Key prefix for VPN. */
48    public static final String VPN = "VPN_";
49
50    /** Key prefix for WIFI. */
51    public static final String WIFI = "WIFI_";
52
53    /** Data type for public keys. */
54    public static final String PUBLIC_KEY = "KEY";
55
56    /** Data type for private keys. */
57    public static final String PRIVATE_KEY = "PKEY";
58
59    /** Data type for certificates. */
60    public static final String CERTIFICATE = "CERT";
61
62    /** Data type for PKCS12. */
63    public static final String PKCS12 = "PKCS12";
64
65    private static Credentials singleton;
66
67    public static Credentials getInstance() {
68        if (singleton == null) {
69            singleton = new Credentials();
70        }
71        return singleton;
72    }
73
74    public void unlock(Context context) {
75        try {
76            Intent intent = new Intent(UNLOCK_ACTION);
77            context.startActivity(intent);
78        } catch (ActivityNotFoundException e) {
79            Log.w(LOGTAG, e.toString());
80        }
81    }
82
83    private Intent createInstallIntent() {
84        Intent intent = new Intent(INSTALL_ACTION);
85        intent.setClassName("com.android.certinstaller",
86                "com.android.certinstaller.CertInstallerMain");
87        return intent;
88    }
89
90    public void install(Context context, KeyPair pair) {
91        try {
92            Intent intent = createInstallIntent();
93            intent.putExtra(PRIVATE_KEY, pair.getPrivate().getEncoded());
94            intent.putExtra(PUBLIC_KEY, pair.getPublic().getEncoded());
95            context.startActivity(intent);
96        } catch (ActivityNotFoundException e) {
97            Log.w(LOGTAG, e.toString());
98        }
99    }
100
101    public void install(Context context, String type, byte[] value) {
102        try {
103            Intent intent = createInstallIntent();
104            intent.putExtra(type, value);
105            context.startActivity(intent);
106        } catch (ActivityNotFoundException e) {
107            Log.w(LOGTAG, e.toString());
108        }
109    }
110
111    public void installFromSdCard(Context context) {
112        try {
113            context.startActivity(createInstallIntent());
114        } catch (ActivityNotFoundException e) {
115            Log.w(LOGTAG, e.toString());
116        }
117    }
118}
119