Please supply the indicated keys and data for the assignment, your login
should be your departmental computer login with student ID as password.
The keys and data should be of the form indicated, using a "*" to indicate
any indeterminate values (such as characters which do not occur in a
substitution cipher). The preferred key is the enciphering key or keys
resulting in your ciphertext, but valid enciphering or deciphering keys
will be accepted.