V7mbaByW

1@Service
2 public class EncryptionUtil {
3
4private static final Logger log =  LogManager.getLogger(EncryptionUtil.class);
5
6private Cipher ecipher;
7private Cipher dcipher;
8@Autowired
9private StringUtils stringUtils;
10@Autowired
11GpsCacheManager gpsCacheManager;
12
13public EncryptionUtil() throws Exception {
14    ecipher = Cipher.getInstance("DES");
15    dcipher = Cipher.getInstance("DES");
16    initCipher();
17  }
18
19
20private void initCipher(){
21    try{
22        String response = “[-3232, -34, -98, 111, -222, 33, -22, 55]”;
23        String[] byteValues = response.substring(1, response.length() - 1).split(",");
24        byte[] bytes = new byte[byteValues.length];
25        for (int i=0, len=bytes.length; i<len; i++) {
26    bytes[i] =   Byte.parseByte(byteValues[i].trim());
27        }
28
29                   SecretKey key = new SecretKeySpec(bytes, "DES");
30        ecipher.init(Cipher.ENCRYPT_MODE, key);
31        dcipher.init(Cipher.DECRYPT_MODE, key);
32    }catch(Exception e){
33        log.error(e.getMessage(), e);
34    }
35}
36
37
38
39 public String encryptUTF8(String str) throws Exception {
40        // Encode the string into bytes using utf-8
41        byte[] utf8 = str.getBytes("UTF8");
42
43        // Encrypt
44        byte[] enc = ecipher.doFinal(utf8);
45        // Encode bytes to base64 to get a string
46        return new String(Base64.encodeBase64(enc));
47}
48
49 public String decryptUTF8(String str) throws Exception {
50
51             if(stringUtils == null) {
52            stringUtils = new StringUtils();
53     }
54     //do not decrypt if a valid email.
55     if(stringUtils.isValidEmail(str)) {
56        return str;
57     }
58     // Decode base64 to get bytes
59     byte[] dec = Base64.decodeBase64(str.getBytes());
60
61     byte[] utf8 = null;
62     try {
63         utf8 = dcipher.doFinal(dec);
64     } 
65             catch (IllegalBlockSizeException e) {
66         return str;
67     }
68     // Decode using utf-8
69     return new String(utf8, "UTF8");
70}