I don't understand how Matthew can write a comparative review of encrypted chat clients and include one for which he has no technical information, not even a binary; particularly when it mixes number theoretic and conventional block crypto, thus exposing itself to a maximal subset of possible implementation errors.

I'd also be interested in the kinds of flaws his class was able to generate for in-class discussion, in other projects. Assigning your class a code review of Moxie's code is somewhat sadistic, and, more importantly, doesn't really give us much of a benchmark.