Overview of the various cryptographic techniques that have been employed to secure data over time. Investigation of various encryption algorithms, from simple ciphers to modern public key encryption systems. Discussion includes various implementations, strengths, weaknesses, and appropriate applications of different cryptosystems as well as an introduction to state-of-the-art cryptography. Students must earn a grade of C or higher in MTH240 to enroll in this course. 3 Credits (3 Lecture) Prerequisite(s): MTH240. Fall Only.