1- A simple encryption method is being used to encrypt a small number (called the secret number). The method by which this encryption works is as follows: I. Choose a random seed number II. Calculate...

1-     A simple encryption method is being used to encrypt a small number (called the secret number). The method by which this encryption works is as follows:                           I.          Choose a random seed number                           II.          Calculate the key by multiplying the seed with the secret under modulus 7                        III.          Finally, multiply the key with the secret to get the encrypted secret