AES/ECB/NoPadding 加减密

 package unit;

 import javax.crypto.Cipher;
 import javax.crypto.spec.SecretKeySpec;

 import org.apache.commons.codec.binary.Base64;

 /**
  * AES/ECB/NoPadding  加密
  * @author jia
  */
 public class AES_ECB {
     private static String Padding = "AES/ECB/NoPadding";
     /**
      * 数据加密
      * @param data
      * @return
      */
     public static byte[] encrypt(byte[] data, byte[] key){
         byte[] original = null;
         try {
             SecretKeySpec skeySpec = new SecretKeySpec(key, "AES");
             Cipher cipher = Cipher.getInstance(Padding);
             cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
             original = cipher.doFinal(data);
         } catch (Exception e) {
             e.printStackTrace();
         }
         return original;
     }

     /**
      * 数据解密
      * @param encData
      * @return
      */
     public static String decrypt(String encData, String key) {
         byte[] decodeBase64 = Base64.decodeBase64(encData);
         byte[] original = null;
         try {
             SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(), "AES");
             Cipher cipher = Cipher.getInstance(Padding);
             cipher.init(Cipher.DECRYPT_MODE, skeySpec);
             original = cipher.doFinal(decodeBase64);
         } catch (Exception e) {
             e.printStackTrace();
         }
         return new String(original).trim();
     }

     public static void main(String[] args) throws Exception {
 //        String str = "20171017095514800000000000000000";
 //        String key = "f5663bc2165b9b50";
 //        byte[] encrypt_data = encrypt(str.getBytes(), key.getBytes());
 //        String s = decrypt(encrypt_data, key);
 //        System.out.println("加密前： : "+str);
 //        System.out.println("密文： : "+encrypt_data);
 //        System.out.println("解密后：   "+s);
     }
 }