1 /* 2 * Copyright 2021, 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 android.security.metrics; 18 19 /** 20 * SecurityLevel enum as defined in stats/enums/system/security/keystore2/enums.proto. 21 * @hide 22 */ 23 @Backing(type="int") 24 enum SecurityLevel { 25 /** Unspecified takes 0. Other values are incremented by 1 compared to keymint spec. */ 26 SECURITY_LEVEL_UNSPECIFIED = 0, 27 SECURITY_LEVEL_SOFTWARE = 1, 28 SECURITY_LEVEL_TRUSTED_ENVIRONMENT = 2, 29 SECURITY_LEVEL_STRONGBOX = 3, 30 SECURITY_LEVEL_KEYSTORE = 4, 31 }