Security in Media Communications

This course is part of the Digital Media Technology MSc program of the EIT ICT Labs Master School.

Lecturers

Dr. Levente Buttyán, Associate Professor
BME Department of Networked Systems and Services,
Laboratory of Cryptography and System Security (CrySyS)

Dr. Boldizsár Bencsáth, Assistant Professor
BME Department of Networked Systems and Services,
Laboratory of Cryptography and System Security (CrySyS)

Course objectives

The general objective of the course is to give an overview of the security problems and their stat-of-the-art solutions in the field of media communications. In order to be comprehensive, the course gives a general overview on some basic cryptographic algorithms and security protocols. It then studies specific security problems related to media communications. It also shows practical examples as case studies. Finally, it touches upon some privacy aspects in social media.

Assessment and Grading Procedures

Oral exam at the end. Solving the homework assignments as a perquisite. Final grade depends on both the exam and the result of the homework assignments (50-50%)

Schedule and room

TBD

Course outline

• Introduction to media communications security
• Symmetric key ciphers
• Hash functions and message authentication
• Block cipher modes of operation
• Asymmetric key cryptography
• Key exchange protocols
• Random number generation
• Tamper resistant devices, physical protection
• Broadcast authentication schemes
• Broadcast encryption schemes
• Group key management schemes
• PayTV security
• VoIP security
• Digital Rights Management
• Trusted computing
• Digital watermarking and fingerprinting
• Privacy enhancing techniques for social networks

References

• Wenjun Zeng, Heather Yu, Ching-Yung Lin, Multimedia Security Technologies for Digital Rights Management, ACADEMIC PRESS, 2006.