- Cryptology 18
- Systems and Data Security 13
- Algorithm Analysis and Problem Complexity 11
- Computer Communication Networks 9
- Management of Computing and Information Systems 8
- Coding and Information Theory 6
- Discrete Mathematics in Computer Science 6
- Computers and Society 3
- Software Engineering/Programming and Operating Systems 3
- Special Purpose and Application-Based Systems 3
- Computation by Abstract Devices 2
- e-Commerce/e-business 2
- Applications of Mathematics 1
- Artificial Intelligence 1
- Computer Appl. in Administrative Data Processing 1
- Computer Applications 1
- Computer Systems Organization and Communication Networks 1
- Computing Milieux 1
- Data Mining and Knowledge Discovery 1
- Discrete Mathematics 1