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/*
* Copyright (C) 2015 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.security;
import android.security.keymaster.KeyCharacteristics;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/**
* @hide
*/
public abstract class KeymasterUtils {
private KeymasterUtils() {}
public static Integer getInt(KeyCharacteristics keyCharacteristics, int tag) {
if (keyCharacteristics.hwEnforced.containsTag(tag)) {
return keyCharacteristics.hwEnforced.getInt(tag, -1);
} else if (keyCharacteristics.swEnforced.containsTag(tag)) {
return keyCharacteristics.swEnforced.getInt(tag, -1);
} else {
return null;
}
}
public static List<Integer> getInts(KeyCharacteristics keyCharacteristics, int tag) {
List<Integer> result = new ArrayList<Integer>();
result.addAll(keyCharacteristics.hwEnforced.getInts(tag));
result.addAll(keyCharacteristics.swEnforced.getInts(tag));
return result;
}
public static Date getDate(KeyCharacteristics keyCharacteristics, int tag) {
Date result = keyCharacteristics.hwEnforced.getDate(tag, null);
if (result == null) {
result = keyCharacteristics.swEnforced.getDate(tag, null);
}
return result;
}
public static boolean getBoolean(KeyCharacteristics keyCharacteristics, int tag) {
if (keyCharacteristics.hwEnforced.containsTag(tag)) {
return keyCharacteristics.hwEnforced.getBoolean(tag, false);
} else {
return keyCharacteristics.swEnforced.getBoolean(tag, false);
}
}
}
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