| /* |
| * Copyright 2020 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.hardware.keymaster; |
| |
| /** |
| * Hardware authentication type, used by HardwareAuthTokens to specify the mechanism used to |
| * authentiate the user, and in KeyCharacteristics to specify the allowable mechanisms for |
| * authenticating to activate a key. |
| * @hide |
| */ |
| @VintfStability |
| @Backing(type="int") |
| enum HardwareAuthenticatorType { |
| NONE = 0, |
| PASSWORD = 1 << 0, |
| FINGERPRINT = 1 << 1, |
| // Additional entries must be powers of 2. |
| ANY = 0xFFFFFFFF, |
| } |