Stream ciphers are malleable] Suppose that the message "Pay $1.00 to Bob" is encrypted using a stream cipher as "4d6c73d5240a948f86951bc29481a542" (in hex). You know that the plaintext etters are encoded as 8-bit ASCII characters. Provide a modified ciphertext such that the decryption would read "Pay $1000 to Bob". Hint: You need to work out the attack explained in Lecture 2-2, Slide 11. Also, note that you do not need to know the keystream to implement your attack although in principle, you are able to compute it).