AES加解密过程

 1 package com.pff.pff;  2   3 import java.security.SecureRandom;  4   5 import javax.crypto.Cipher;  6 import javax.crypto.KeyGenerator;  7 import javax.crypto.SecretKey;  8 import javax.crypto.spec.SecretKeySpec;  9  10 import org.apache.commons.codec.binary.Hex; 11  12 public class Aes { 13  14     private static String test = "pff"; 15  16     public static void main(String[] args) { 17         testDes(); 18     } 19  20     public static void testDes() { 21         try { 22             // 生成秘钥 23             KeyGenerator keyGenerator = KeyGenerator.getInstance("AES"); 24             keyGenerator.init(new SecureRandom()); 25             SecretKey generateKey = keyGenerator.generateKey(); 26             byte[] encoded = generateKey.getEncoded(); 27             // 秘钥转换 28             SecretKeySpec secretKeySpec = new SecretKeySpec(encoded, "AES"); 29             // DES加密过程 30             Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5padding"); 31             cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec); 32             byte[] result = cipher.doFinal(test.getBytes()); 33             System.out.println("AES加密过程结果= " + Hex.encodeHexString(result)); 34             // 解密过程 35             cipher.init(Cipher.DECRYPT_MODE, secretKeySpec); 36             byte[] result2 = cipher.doFinal(result); 37             System.out.println("AES解密过程结果= " + new String(result2)); 38         } catch (Exception e) { 39             e.printStackTrace(); 40         } 41     } 42 }

原文：https://www.cnblogs.com/wings-ff/p/9229219.html