org.apache.kylin.common.util.EncryptUtil Maven / Gradle / Ivy
/*
* 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.kylin.common.util;
import java.nio.charset.Charset;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang.StringUtils;
public class EncryptUtil {
/**
* thisIsAsecretKey
*/
private static final byte[] key = { 0x74, 0x68, 0x69, 0x73, 0x49, 0x73, 0x41, 0x53, 0x65, 0x63, 0x72, 0x65, 0x74,
0x4b, 0x65, 0x79 };
public static final String ENC_PREFIX = "ENC('";
public static final String ENC_SUBFIX = "')";
public static final String DEC_FLAG = "DEC";
public static boolean isEncrypted(String value) {
return StringUtils.isNotEmpty(value) && value.startsWith(ENC_PREFIX) && value.endsWith(ENC_SUBFIX);
}
public static String encrypt(String strToEncrypt) {
try {
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
return Base64.encodeBase64String(cipher.doFinal(strToEncrypt.getBytes(Charset.defaultCharset())));
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
}
public static String encryptWithPrefix(String value) {
return ENC_PREFIX + encrypt(value) + ENC_SUBFIX;
}
public static String decrypt(String strToDecrypt) {
try {
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");
final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
cipher.init(Cipher.DECRYPT_MODE, secretKey);
return new String(cipher.doFinal(Base64.decodeBase64(strToDecrypt)), Charset.defaultCharset());
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
}
public static String decryptPassInKylin(String value) {
return decrypt(value.substring(ENC_PREFIX.length(), value.length() - ENC_SUBFIX.length()));
}
private static void printUsage() {
System.out.println("Usage: java org.apache.kylin.common.util ");
}
public static String getDecryptedValue(String value) {
if (isEncrypted(value)) {
return decryptPassInKylin(value);
}
return value;
}
public static void main(String[] args) {
if (args.length != 1) {
printUsage();
Unsafe.systemExit(1);
}
String passwordTxt = args[0];
// for encrypt password like LDAP password
System.out.println(EncryptUtil.encrypt(passwordTxt));
}
}