h5yBnYnz

1package iss.encryptionUtils;
2
3import java.util.Scanner;
4import javax.crypto.Cipher;
5import javax.crypto.SecretKey;
6import javax.crypto.spec.SecretKeySpec;
7
8public class AESEncryptor {
9    
10    public static final String ALGORITHM_AES="AES";
11
12    public static byte[] encryptByteArray(byte [] query, String sharedKey) {
13        byte[] result = null;
14        try {
15            SecretKeySpec secretKeySpec = new SecretKeySpec(sharedKey.getBytes(), ALGORITHM_AES);
16            Cipher cipher = Cipher.getInstance(ALGORITHM_AES);
17            cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
18            result = cipher.doFinal(query);
19
20        } catch (Exception e) {
21            e.printStackTrace();
22        }
23
24        return result;
25
26    }
27
28    public static byte[] encryptByteArray(byte [] query, SecretKey sessionKey) {
29        byte[] result = null;
30        try {
31            
32            Cipher cipher = Cipher.getInstance(ALGORITHM_AES);
33            cipher.init(Cipher.ENCRYPT_MODE, sessionKey);
34            result = cipher.doFinal(query);
35
36        } catch (Exception e) {
37            e.printStackTrace();
38        }
39
40        return result;
41
42    }
43    public static byte [] decryptByteArray(byte [] query, String sharedKey) {
44        byte[] result = null;
45        try {
46            SecretKeySpec secretKeySpec = new SecretKeySpec(sharedKey.getBytes(), ALGORITHM_AES);
47            Cipher cipher = Cipher.getInstance(ALGORITHM_AES);
48            cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
49            result = cipher.doFinal(query);
50       
51
52        } catch (Exception e) {
53            e.printStackTrace();
54        }
55
56        return result;
57
58    }
59    public static byte [] decryptByteArray(byte [] query, SecretKey sessionKey) {
60        byte[] result = null;
61        try {
62//            SecretKeySpec secretKeySpec = new SecretKeySpec(sharedKey.getBytes(), ALGORITHM_AES);
63            Cipher cipher = Cipher.getInstance(ALGORITHM_AES);
64            cipher.init(Cipher.DECRYPT_MODE, sessionKey);
65            result = cipher.doFinal(query);
66       
67
68        } catch (Exception e) {
69            e.printStackTrace();
70        }
71
72        return result;
73
74    }
75
76    
77}