Android AES Encrypt encrypt(String content, String password)

Description

encrypt

Parameter

Parameter	Description
content	a parameter
password	a parameter

Declaration

public static byte[] encrypt(String content, String password) 

Method Source Code

//package com.java2s;
import java.io.UnsupportedEncodingException;

import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;

import javax.crypto.spec.SecretKeySpec;

public class Main {
    /**//w w  w  . j a  v a  2s  .  c om
     * 
     * @param content
     * @param password
     * @return
     */
    public static byte[] encrypt(String content, String password) {
        try {
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            kgen.init(128, new SecureRandom(password.getBytes()));
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat = secretKey.getEncoded();
            SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
            Cipher cipher = Cipher.getInstance("AES");
            byte[] byteContent = content.getBytes("utf-8");
            cipher.init(Cipher.ENCRYPT_MODE, key);
            byte[] result = cipher.doFinal(byteContent);
            return result;
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IllegalBlockSizeException e) {
            e.printStackTrace();
        } catch (BadPaddingException e) {
            e.printStackTrace();
        }
        return null;
    }
}

Related

1. encrypt(String cleartext)
2. encrypt(String content, String password)
3. encrypt(String content, String password)
4. encrypt(String content, String password)
5. encrypt(String data)
6. encrypt(String dataPassword, String cleartext)