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/*
* ============LICENSE_START==========================================
* ONAP Portal SDK
* ===================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
*
* Unless otherwise specified, all software contained herein is licensed
* under the Apache License, Version 2.0 (the "License");
* you may not use this software 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.
*
* Unless otherwise specified, all documentation contained herein is licensed
* under the Creative Commons License, Attribution 4.0 Intl. (the "License");
* you may not use this documentation except in compliance with the License.
* You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation
* 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.
*
* ============LICENSE_END============================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.portalsdk.core.onboarding.util;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.onap.portalsdk.core.onboarding.exception.CipherUtilException;
public class CipherUtil {
private static final Log logger = LogFactory.getLog(CipherUtil.class);
/**
* Default key.
*/
private final static String key = "AGLDdG4D04BKm2IxIWEr8o==!";
/**
* Encrypts the text using the specified secret key.
*
* @param plainText
* Text to encrypt
* @param secretKey
* Key to use for encryption
* @return encrypted version of plain text.
* @throws CipherUtilException
* if any encryption step fails
*/
public static String encrypt(String plainText, String secretKey) throws CipherUtilException {
String encryptedString = null;
try {
byte[] encryptText = plainText.getBytes("UTF-8");
byte[] rawKey = Base64.decodeBase64(secretKey);
SecretKeySpec sKeySpec = new SecretKeySpec(rawKey, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, sKeySpec);
encryptedString = Base64.encodeBase64String(cipher.doFinal(encryptText));
} catch (BadPaddingException | IllegalBlockSizeException | InvalidKeyException | NoSuchAlgorithmException
| NoSuchPaddingException | UnsupportedEncodingException ex) {
logger.error("encrypt failed", ex);
throw new CipherUtilException(ex);
}
return encryptedString;
}
/**
* Encrypts the text using a default secret key.
*
* @param plainText
* Text to encrypt
* @return Encrypted Text
* @throws CipherUtilException
* if any decryption step fails
*/
public static String encrypt(String plainText) throws CipherUtilException {
return CipherUtil.encrypt(plainText, key);
}
/**
* Decrypts the text using the specified secret key.
*
* @param encryptedText
* Text to decrypt
* @param secretKey
* Key to use for decryption
* @return plain text version of encrypted text
* @throws CipherUtilException
* if any decryption step fails
*/
public static String decrypt(String encryptedText, String secretKey) throws CipherUtilException {
String encryptedString = null;
try {
byte[] rawKey = Base64.decodeBase64(secretKey);
SecretKeySpec sKeySpec = new SecretKeySpec(rawKey, "AES");
byte[] encryptText = Base64.decodeBase64(encryptedText.getBytes("UTF-8"));
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, sKeySpec);
encryptedString = new String(cipher.doFinal(encryptText));
} catch (BadPaddingException | IllegalBlockSizeException | InvalidKeyException | NoSuchAlgorithmException
| NoSuchPaddingException | UnsupportedEncodingException ex) {
logger.error("decrypt failed", ex);
throw new CipherUtilException(ex);
}
return encryptedString;
}
/**
* Decrypts the text using a default secret key.
*
* @param encryptedText
* Text to decrypt
* @return Decrypted text
* @throws CipherUtilException
* if any decryption step fails
*/
public static String decrypt(String encryptedText) throws CipherUtilException {
return CipherUtil.decrypt(encryptedText, key);
}
/* public static void main(String[] args) throws CipherUtilException {
String testValue = "Welcome123";
String encrypted;
String decrypted;
if (args.length != 2) {
System.out.println("Default password testing... ");
System.out.println("Plain password: " + testValue);
encrypted = encrypt(testValue);
System.out.println("Encrypted password: " + encrypted);
decrypted = decrypt(encrypted);
System.out.println("Decrypted password: " + decrypted);
} else {
String whatToDo = args[0];
if (whatToDo.equalsIgnoreCase("d")) {
encrypted = args[1];
System.out.println("Encrypted Text: " + encrypted);
decrypted = decrypt(encrypted);
System.out.println("Decrypted Text: " + decrypted);
} else {
decrypted = args[1];
System.out.println("Plain Text: " + decrypted);
encrypted = encrypt(decrypted);
System.out.println("Encrypted Text" + encrypted);
}
}
}*/
}
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