Many introductory courses to cryptology and computer security start with or include a discussion of classical ciphers that usually contemplates some cryptanalysis techniques used to break them. Ganzua (picklock in Spanish) is an application designed to assist the cryptanalysis of ciphertext obtained with monoalphabetic or polyalphabetic ciphers.…

Information assurance courses delivered in an online environment pose challenges to the development of meaningful hands-on exercises for students. This article presents techniques on furnishing laboratory exercises to online students and presents examples of assignments drawn from the author's experiences in teaching online courses for over three…