VbVJtDGa

1ByteArrayOutputStream output = new ByteArrayOutputStream();
2for(int i = 0; i < input.length(); i = i+8) {
3    int byte_int = Integer.parseInt(input.substring(i, i + 8), 2);
4    output.write((byte) byte_int);
5}        
6byte[] out = output.toByteArray();
7 
8try {
9     MessageDigest digest = MessageDigest.getInstance("SHA-256");
10     byte[] hash = digest.digest(out);
11     secretKey = new SecretKeySpec(hash, "AES");
12} catch (NoSuchAlgorithmException e) { e.printStackTrace(); }