biaANEFt

1import java.io.*;
2import java.util.Scanner;
3import java.io.File;
4import java.io.FileInputStream;
5import java.io.FileOutputStream;
6import java.io.IOException;
7import java.security.InvalidKeyException;
8import java.security.Key;
9import java.security.NoSuchAlgorithmException;
10import javax.crypto.BadPaddingException;
11import javax.crypto.Cipher;
12import javax.crypto.IllegalBlockSizeException;
13import javax.crypto.NoSuchPaddingException;
14import javax.crypto.spec.SecretKeySpec;
15
16public class EncryptTest {
17
18    BufferedWriter out;
19    static void fileProcessor(int cipherMode,String key,File inputFile,File outputFile){
20   	 try {
21   	       Key secretKey = new SecretKeySpec(key.getBytes(), "AES");
22   	       Cipher cipher = Cipher.getInstance("AES");
23   	       cipher.init(cipherMode, secretKey);
24
25   	       FileInputStream inputStream = new FileInputStream(inputFile);
26   	       byte[] inputBytes = new byte[(int) inputFile.length()];
27   	       inputStream.read(inputBytes);
28
29   	       byte[] outputBytes = cipher.doFinal(inputBytes);
30
31   	       FileOutputStream outputStream = new FileOutputStream(outputFile);
32   	       outputStream.write(outputBytes);
33
34   	       inputStream.close();
35   	       outputStream.close();
36
37   	    } catch (NoSuchPaddingException | NoSuchAlgorithmException 
38                        | InvalidKeyException | BadPaddingException
39   	             | IllegalBlockSizeException | IOException e) {
40   		e.printStackTrace();
41               }
42        }
43
44    public EncryptTest()
45    {
46        try
47            {
48                out = new BufferedWriter(new FileWriter("text.txt"/*,true*/));
49                
50                String userInput;
51                String userInput2;
52        
53          
54                Scanner input = new Scanner(System.in);
55
56          
57                System.out.println("Enter Password 1 ");
58                userInput = input.nextLine();
59                
60                
61                System.out.println("Enter Password 2 ");
62                userInput2 = input.nextLine();
63
64                out.write(userInput);
65                
66                out.write(userInput2);
67
68                out.newLine(); 
69
70                out.close();
71            }
72            catch(IOException e)
73                {
74                System.out.println("There was a problem:" + e);
75                }
76    }
77
78    public static void main(String[] args)
79    {
80     EncryptTest EncryptTest = new EncryptTest();
81     String key = "1234567890123456";
82 	File inputFile = new File("text.txt");
83 	File encryptedFile = new File("text.encrypted");
84 	File decryptedFile = new File("decrypted-text.txt");
85 		
86 	try {
87 	     Crypto.fileProcessor(Cipher.ENCRYPT_MODE,key,inputFile,encryptedFile);
88 	     Crypto.fileProcessor(Cipher.DECRYPT_MODE,key,encryptedFile,decryptedFile);
89 	     System.out.println("Success");
90 	 } catch (Exception ex) {
91 	     System.out.println(ex.getMessage());
92              ex.printStackTrace();
93 	 }
94      }
95 	
96    
97}