Information function:
Optical communication technology
Communication and Information Systems
Physical Electronics and Nanotechnology
Wireless communication technology
Quantum Electronics and Laser Technology
computer software
Computer Architecture
Computer Networks and Information Systems
Digital multimedia technology
Intelligent information processing technology
Signal and Information Processing
Microelectromechanical systems
Microelectronics and Integrated Circuit Technology
Communication security:
access control 
network security
Computer and digital forensics
Social network security, privacy, and trust
Language based security
Security protocols and verification
Intrusion detection
Software defined network security
Anonymity
security management 
Web security
Embedded System Security
Security models, standards, and strategies
Fraud and Cybercrime
Trust and Reputation System
Certification and Authorization
Big Data Security and Privacy
Mobile computing security and privacy
Applied cryptography 
Hardware security