diff options
Diffstat (limited to 'ecomp-sdk/epsdk-fw/src/main/java/org/onap/portalsdk/core/onboarding/util/CipherUtil.java')
| -rw-r--r-- | ecomp-sdk/epsdk-fw/src/main/java/org/onap/portalsdk/core/onboarding/util/CipherUtil.java | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/ecomp-sdk/epsdk-fw/src/main/java/org/onap/portalsdk/core/onboarding/util/CipherUtil.java b/ecomp-sdk/epsdk-fw/src/main/java/org/onap/portalsdk/core/onboarding/util/CipherUtil.java new file mode 100644 index 00000000..f3125f03 --- /dev/null +++ b/ecomp-sdk/epsdk-fw/src/main/java/org/onap/portalsdk/core/onboarding/util/CipherUtil.java @@ -0,0 +1,174 @@ +/* + * ============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 password = "Welcome123"; + String encrypted; + String decrypted; + + if (args.length != 2) { + System.out.println("Default password testing... "); + System.out.println("Plain password: " + password); + encrypted = encrypt(password); + 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); + } + } + } +} |