47 lines
1.2 KiB
Java
47 lines
1.2 KiB
Java
/*
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* Copyright 2018 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.pgpainless.util;
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import java.util.Arrays;
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public class Passphrase {
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private final char[] chars;
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public Passphrase(char[] chars) {
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if (chars == null) {
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throw new NullPointerException("chars MUST NOT be null.");
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}
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this.chars = chars;
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}
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public void clear() {
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Arrays.fill(chars, ' ');
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}
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@Override
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protected void finalize() throws Throwable {
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clear();
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super.finalize();
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}
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public char[] getChars() {
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char[] copy = new char[chars.length];
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System.arraycopy(chars, 0, copy, 0, chars.length);
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return copy;
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}
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}
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