- Cryptology 14
- Discrete Mathematics in Computer Science 14
- Systems and Data Security 14
- Algorithm Analysis and Problem Complexity 9
- Computer Communication Networks 7
- Management of Computing and Information Systems 7
- Coding and Information Theory 5
- Symbolic and Algebraic Manipulation 4
- Computer Systems Organization and Communication Networks 3
- Math Applications in Computer Science 2
- Theory of Computation 2
- Data Structures and Information Theory 1
- Mathematics of Computing 1