Java AES encryptAes(String value)

Description

encrypt Aes

License

Open Source License

Declaration

public static String encryptAes(String value) throws NoSuchAlgorithmException, NoSuchPaddingException,
            InvalidKeyException, IllegalBlockSizeException, BadPaddingException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2011, 2016 Eurotech and/or its affiliates and others
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:// w  w  w  .  j a  va  2 s .  c o  m
 *     Eurotech - initial API and implementation
 *
 *******************************************************************************/

import java.security.InvalidKeyException;
import java.security.Key;

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 javax.xml.bind.DatatypeConverter;

public class Main {
    private static final String ALGORITHM = "AES";
    private static final byte[] SECRET_KEY = "ipsea1s214d5a6sfs8dfsdg@$%3saf".getBytes();

    public static String encryptAes(String value) throws NoSuchAlgorithmException, NoSuchPaddingException,
            InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGORITHM);
        c.init(Cipher.ENCRYPT_MODE, key);
        byte[] encryptedBytes = c.doFinal(value.getBytes());

        String encryptedValue = DatatypeConverter.printBase64Binary(encryptedBytes);
        return encryptedValue;
    }

    private static Key generateKey() {
        Key key = new SecretKeySpec(SECRET_KEY, ALGORITHM);
        return key;
    }
}

Related

1. aesKey(int keySize)
2. aesStoreKeyToFile(Key secretKey, String path)
3. createSessionKey()
4. decrypt(String encryptedText, String key)
5. decrypt_aes(String key, String initVector, String encrypted)
6. encryptDecrypt(int mode, String data, String key, String salt, String iv)
7. getAesKey(String key)