bfXWmJgw

1Application still blocks even when using non-blocking cipher stream with socket
2CipherInputStream cis;
3    String salt = "1234567890123456";
4    String password = "abcdEFGH";
5
6    password = password.concat(salt);
7    String validpassword = password.substring(0, 16);
8    SecretKeySpec secretKey = new SecretKeySpec(validpassword.getBytes(),"AES");   
9    AlgorithmParameterSpec paramSpec = new IvParameterSpec(salt.getBytes());
10
11    try  {
12        // Creation of Cipher objects
13        Cipher encrypt = 
14         Cipher.getInstance("AES/CFB8/NoPadding");
15        encrypt.init(Cipher.ENCRYPT_MODE, secretKey,paramSpec);
16
17        // Open the file
18        try {
19             fis = new FileInputStream(file);
20        } catch(IOException err) {
21             System.out.println("Cannot open file!");
22             return null;
23        }
24        cis = new CipherInputStream(fis, encrypt);
25
26        // Write to the Encrypted file
27        fos = new FileOutputStream(desFile);
28        byte[] b = new byte[256];
29        int i = cis.read(b);
30        while (i != -1) {
31             fos.write(b, 0, i);
32             i = cis.read(b);
33        }
34	
35CipherInputStream cis;
36    String salt = "1234567890123456";
37    String password = "abcdEFGH";
38
39    password = password.concat(salt);
40    String validpassword = password.substring(0, 16);          
41    SecretKeySpec secretKey =new SecretKeySpec(validpassword.getBytes(),"AES");        
42    AlgorithmParameterSpec paramSpec = new IvParameterSpec(salt.getBytes());
43
44     try {
45         // Creation of Cipher objects
46         Cipher decrypt = 
47              Cipher.getInstance("AES/CFB8/NoPadding");
48         decrypt.init(Cipher.DECRYPT_MODE, secretKey,paramSpec); 
49
50         // Open the Encrypted file
51         cis = new CipherInputStream(is, decrypt); 
52
53         int bytesRead;
54         int current = 0;
55         byte[] b = new byte[256];
56         bytesRead = cis.read(b,0,256);