using java netbeans
you will try to use "brute force" to decrypt an encrypted message, where you only have the first 96-bits of the 128-bit secret key (last 4 bytes of the secret key are missing!) The program should be called findk, and invoked as follows:
findk cipher_file key_file
where 'cipher_file' is the file containing the encrypted message and 'key_file' is the file containing the first 96-bits of the key. The program should print out on standard output the missing 4 bytes of the key in hexadecimal, the decrypted message and the time it took to find the correct key.