if (args.length != 2) {
System.err.println("Usage: java FileEncryptor filename password");
return;
}
String filename = args[0];
String password = args[1];
if (password.length() < 8 ) {
System.err.println("Password must be at least eight characters long");
}
try {
FileInputStream fin = new FileInputStream(args[0]);
FileOutputStream fout = new FileOutputStream(args[0] + ".bwf");
KeyGenerator blowfishKeyGenerator = KeyGenerator.getInstance("Blowfish");
SecretKey blowfishKey = blowfishKeyGenerator.generateKey();
/* byte[] keyData = blowfishKey.getEncoded();
SecretKeySpec blowfishKeySpec = new SecretKeySpec(keyData, "Blowfish");
*/
// create a key
/* byte[] blowfishKeyData = password.getBytes();
SecretKeySpec blowfishKeySpec = new SecretKeySpec(blowfishKeyData, "Blowfish");
*/
// SecretKey blowfishKey = keyFactory.generateSecret(blowfishKeySpec);
// use Data Encryption Standard
Cipher des = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
des.init(Cipher.ENCRYPT_MODE, blowfishKey);
byte[] input = new byte[64];
while (true) {
int bytesRead = fin.read(input);
if (bytesRead == -1) break;
byte[] output = des.update(input, 0, bytesRead);
if (output != null) fout.write(output);
}
byte[] output = des.doFinal();
if (output != null) fout.write(output);
fin.close();
fout.flush();
fout.close();
}
catch (GeneralSecurityException e) {
System.err.println(e);
e.printStackTrace();
}
catch (IOException e) {
System.err.println(e);
}
