1 /* 2 * Copyright 2001-2008 The Apache Software Foundation. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * 16 */ 17 package org.apache.juddi.v3.client.cryptor; 18 19 import java.io.UnsupportedEncodingException; 20 import java.security.InvalidAlgorithmParameterException; 21 import java.security.InvalidKeyException; 22 import java.security.NoSuchAlgorithmException; 23 24 import javax.crypto.BadPaddingException; 25 import javax.crypto.IllegalBlockSizeException; 26 import javax.crypto.NoSuchPaddingException; 27 28 /** 29 * @author Anou Manavalan 30 */ 31 public interface Cryptor { 32 33 /** 34 * Encrypt the string, if unable to encrypt, return null 35 * 36 * @param str 37 * @return encrypted text 38 * @throws NoSuchPaddingException 39 * @throws NoSuchAlgorithmException 40 * @throws InvalidAlgorithmParameterException 41 * @throws InvalidKeyException 42 * @throws IllegalBlockSizeException 43 * @throws BadPaddingException 44 * @throws java.io.UnsupportedEncodingException 45 */ 46 String encrypt(String str) 47 throws NoSuchPaddingException, 48 NoSuchAlgorithmException, 49 InvalidAlgorithmParameterException, 50 InvalidKeyException, 51 IllegalBlockSizeException, 52 BadPaddingException, 53 UnsupportedEncodingException; 54 55 /** 56 * decrypts the string 57 * 58 * @param str 59 * @return if the password can be decrypted, the decrypted value is 60 * returned, otherwise the original value is returned<br> 61 * In the event that decryption fails, the error message must be logged. 62 * @throws NoSuchPaddingException 63 * @throws NoSuchAlgorithmException 64 * @throws InvalidAlgorithmParameterException 65 * @throws InvalidKeyException 66 * @throws IllegalBlockSizeException 67 * @throws BadPaddingException 68 * @throws java.io.UnsupportedEncodingException 69 */ 70 public String decrypt(String str) throws NoSuchPaddingException, 71 NoSuchAlgorithmException, 72 InvalidAlgorithmParameterException, 73 InvalidKeyException, 74 IllegalBlockSizeException, 75 BadPaddingException, 76 UnsupportedEncodingException; 77 78 public String newKey(); 79 }