Hey there, I myself am an undergraduate CS student currently in my final year of studies. I've seen the assignment that you've put up, and I can easily cook up quality answers to any 5 of the questions provided. I myself take a particular interest in computer security, authentication, data integrity, privacy, cryptosystems, etc, so I'm a person well suited for the job. I've even tried some Denial of service attacks myself on my own domain too.
If you pick me, I can assure, you'll not leave unimpressed. I'm sure that the professor at university of Kent will love my answers.
(Also, my university also makes me do Harvard type assignments, so I have experience at that as well ! )