Subject: Security in Communication Systems

Scientific Area:



80 Hours

Number of ECTS:

7,5 ECTS



Overall objectives:

1 - The discipline of Security in Communication Systems has as its main objective to empower students with knowledge of the key vulnerabilities of computer systems and networks, enabling students the knowledge of the main mechanisms and security technologies, design and installation of security solutions in Networking computer.


1 - Introduction: Importance of protecting networks; Necessary security level; Security policies.
2 - Security in the Physical Environment and Physical Layer: Security in communication systems; Characterization of attacks on the Physical Layer; Protection techniques and mechanisms.
3 - Security in the Logical Link Layer: Characterization of attacks; Security on local networks; Safety in switched connections; Security on dedicated connections; Security in wireless networks.
4 - Security in the Network and Transport layers: Characterization of attacks; Protection techniques and mechanisms.
5 - Application Layer security: Protection mechanisms; Auditing tools.
6 - Access control: firewalls, Trusted systems, intrusion detection systems, malicious software and biometry.
7 - Authentication and encryption: authentication and encryption importance, techniques, encryption keys management and certification entities.


Chris Brenton , 2003 , Mastering Network Security , Sybex Press
William Stallings , 2016 , Cryptography and Network Security: Principles and Practice (6th Edition) , Pearson
André Zúquete , 2014 , Segurança em Redes Informáticas , FCA
Merike Kaeo , 2004 , Designing network security , Cisco Press
William Stallings, Lawrie Brown , 2018 , Computer security : principles and practice , Pearson

Assesssment methods and criteria:

Classification Type: Quantitativa (0-20)

Evaluation Methodology:
Exam: The exams (2, 25% each) aim at assessing the theoretical and practical knowledge learned by the student. Thus, the students are able to evaluate their performance along the semester and change their learning strategies if necessary: Project: The project activities allow the students to carry out research, including reading scientific papers and journals. The students should write reports and present a seminar. (50% of the classification of the course).