1 /*
2  * Copyright (C) 2023 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 com.android.systemui.authentication.shared.model
18 
19 /** Enumerates all known authentication methods. */
20 sealed class AuthenticationMethodModel(
21     /**
22      * Whether the authentication method is considered to be "secure".
23      *
24      * "Secure" authentication methods require authentication to unlock the device. Non-secure auth
25      * methods simply require user dismissal.
26      */
27     open val isSecure: Boolean,
28 ) {
29     /**
30      * Device doesn't use a secure authentication method. Either there is no lockscreen or the lock
31      * screen can be swiped away when displayed.
32      */
33     data object None : AuthenticationMethodModel(isSecure = false)
34 
35     data object Pin : AuthenticationMethodModel(isSecure = true)
36 
37     data object Password : AuthenticationMethodModel(isSecure = true)
38 
39     data object Pattern : AuthenticationMethodModel(isSecure = true)
40 
41     data object Sim : AuthenticationMethodModel(isSecure = true)
42 }
43