1 /* 2 * Copyright (C) 2019 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.car.trust; 18 19 /** 20 * A utility class that provides validations. 21 */ 22 final class CarTrustAgentValidator { 23 24 /** 25 * Returns whether device id received during trust agent enrollment is valid. 26 * <p> 27 * Default implementation has no expectation (always returns true). 28 * 29 * @param value Data received in the initial state of enrollment. 30 * @return {@code True} if input is valid; {@code false} otherwise. 31 */ isValidEnrollmentDeviceId(byte[] value)32 static boolean isValidEnrollmentDeviceId(byte[] value) { 33 return true; 34 } 35 36 /** 37 * Returns whether device id received during trust agent unlock is valid. 38 * <p> 39 * Default implementation has no expectation (always returns true). 40 * 41 * @param value Data received in the initial state of unlocking. 42 * @return {@code True} if input is valid; {@code false} otherwise. 43 */ isValidUnlockDeviceId(byte[] value)44 static boolean isValidUnlockDeviceId(byte[] value) { 45 return true; 46 } 47 CarTrustAgentValidator()48 private CarTrustAgentValidator() { 49 // Do not instantiate. 50 } 51 } 52