1 package com.jf.utils;
2
3 import javax.crypto.Cipher;
4 import javax.crypto.spec.SecretKeySpec;
5
6 import org.apache.commons.codec.binary.Base64;
7 import org.slf4j.Logger;
8 import org.slf4j.LoggerFactory;
9 /**
10 * <p>Description: [AES-128-ECB加密模式，key需要为16位]</p>
11 */
12 public class AESUtil {
13 private static final Logger logger = LoggerFactory.getLogger(AESUtil.class);
14
15 // 加密
16 public static String encrypt(String sSrc, String sKey) throws Exception {
17 if (sKey == null) {
18 logger.info("Key为空null");
19 return null;
20 }
21 // 判断Key是否为16位
22 if (sKey.length() != 16) {
23 logger.info("Key长度不是16位");
24 return null;
25 }
26 byte[] raw = sKey.getBytes("utf-8");
27 SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
28 Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式"
29 cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
30 byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
31 return new String(new Base64().encode(encrypted),"UTF-8");//此处使用BASE64做转码功能，同时能起到2次加密的作用
32 }
33
34 // 解密
35 public static String decrypt(String sSrc, String sKey) throws Exception {
36 try {
37 // 判断Key是否正确
38 if (sKey == null) {
39 logger.info("Key为空null");
40 return null;
41 }
42 // 判断Key是否为16位
43 if (sKey.length() != 16) {
44 logger.info("Key长度不是16位");
45 return null;
46 }
47 byte[] raw = sKey.getBytes("utf-8");
48 SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
49 Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
50 cipher.init(Cipher.DECRYPT_MODE, skeySpec);
51 byte[] encrypted1 = new Base64().decode(sSrc.getBytes("UTF-8"));//先用base64解密
52 try {
53 byte[] original = cipher.doFinal(encrypted1);
54 String originalString = new String(original, "utf-8");
55 return originalString;
56 } catch (Exception e) {
57 logger.info(e.toString());
58 return null;
59 }
60 } catch (Exception ex) {
61 logger.info(ex.toString());
62 return null;
63 }
64 }
65
66 public static void main(String[] args) throws Exception {
67 /*
68 * 此处使用AES-128-ECB加密模式，key需要为16位
69 */
70 String cKey = "XfLxxx7qjxxxx";
71 /*// 需要加密的字串
72 String cSrc = "cp2012c*0.150*215*WD1233768467*1800";
73 logger.info("加密前的字串是：" + cSrc);
74 // 加密
75 String enString = AESUtil.encrypt(cSrc, cKey);
76 logger.info("加密后的字串是：" + enString);
77 // 解密pVAxxxxEp3hxxxx2bO7ExxxhjUN0ODxxxNblJuFz4aNMVxxxK6sojo
78 String DeString = AESUtil.decrypt(enString, cKey);
79 logger.info("解密后的字串是：" + DeString);*/
80
81 System.out.println(AESUtil.encrypt("cid=421&vcode=xxxx&stime=2017-05-10 08:56:34&etime=2017-05-10 16:17:49", cKey));
82 }
83 }
