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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* 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 com.intellij.openapi.util;
import org.jetbrains.annotations.Nullable;
public class PasswordUtil {
private PasswordUtil() { }
// weak encryption just to avoid plain text passwords in text files
public static String encodePassword(@Nullable String password) {
String result = "";
if (password == null) {
return result;
}
for (int i = 0; i < password.length(); i++) {
int c = password.charAt(i);
c ^= 0xdfaa;
result += Integer.toHexString(c);
}
return result;
}
public static String decodePassword(@Nullable String password) throws NumberFormatException {
String result = "";
if (password == null) {
return result;
}
for (int i = 0; i < password.length(); i += 4) {
String s = password.substring(i, i + 4);
int c = Integer.parseInt(s, 16);
c ^= 0xdfaa;
result += new Character((char)c).charValue();
}
return result;
}
}
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