org.apache.logging.log4j.core.net.ssl.MemoryPasswordProvider Maven / Gradle / Ivy
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Statistical sampling library for use in virtdata libraries, based
on apache commons math 4
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.logging.log4j.core.net.ssl;
import java.util.Arrays;
/**
* Simple PasswordProvider implementation that keeps the password char[] array in memory.
*
* This implementation is not very secure because the password data is resident in memory during the life of this
* provider object, giving attackers a large window of opportunity to obtain the password from a memory dump.
* A slightly more secure implementation is {@link EnvironmentPasswordProvider},
* and an even more secure implementation is {@link FilePasswordProvider}.
*
*/
class MemoryPasswordProvider implements PasswordProvider {
private final char[] password;
public MemoryPasswordProvider(final char[] chars) {
if (chars != null) {
password = chars.clone();
} else {
password = null;
}
}
@Override
public char[] getPassword() {
if (password == null) {
return null;
}
return password.clone();
}
public void clearSecrets() {
Arrays.fill(password, '\0');
}
}