Course detail

Security and Computer Networks

FIT-IBSAcad. year: 2019/2020

Secure Communication on the L2 Layer. Certificates and Digital Signature. Attacks in Computer Networks. Security Protocols, their Analysis, Verification and Design. Application of Security Protocols. Security on the L3 Layer. IPsec and VPN. Security of Network Services. IDS and IPS Systems. Security of Wireless Networks. Security of Sensor Networks.

Learning outcomes of the course unit

Student is able to configure secure communication between computers. They have an overview of authentication principles and secure network services and they are able to manage them: SSH, VPN, email services, etc. They have an overview of security technologies used in wireless and sensor networks. Students are able to design and implement secure communication. Students are able to read standards and use them for project implementation.


  • Basic skills of operation systems Unix, Windows
  • Ability to read study texts in English (standards, RFC documents).
  • The architecture of computer networks (ISO/OSI, TCP/IP).
  • Overview of link layer protocols and network layer protocols.


Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Texty přednášek v elektronické podobě.
Kurose, James F.: Computer networking : a top-down approach. 7th ed., Pearson, Essex, 2017, ISBN 978-1-292-15359-9
Stallings, W.: Network security essentials : applications and standards. Hoboken, 2016, 978-0-13-452733-8.
Schneider, S.A., Ryan, P.Y.A.: Modelling and Analysis of Security Protocols. Addison Wesley, Boston, 2000, ISBN 0-201-67471-8.
Bishop, M.: Computer security: Art & Science. Addison-Wesley, Boston, 2003, ISBN 0-201-44099-7.
Anderson, Ross J.: Security Engineering: A Guide to Building Dependable Distributed Systems. John Wiley & Sons Inc, 2001, ISBN 0-471-38922-6.
Menezes, A. J., Oorschot, P.C. van, Vanstone, S.A.: Handbook of Applied Cryptography. CRC Press, 1996, ISBN 0-8493-8523-7,
Tanenbaum, A.S.: Computer Networks. Fourth Edition, Prentice Hall, 2003, ISBN 0-13-066102-3.
Standardy IETF RFC.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

Mid-term exam and project realization.

Exam prerequisites:
Students need to earn at least a half of all points during the semester.

Language of instruction

Czech, English

Work placements

Not applicable.


The goal of this course is to inform students about the basic principles of network and systems security and relevant protocols and standards. Students are learned to design and manage security technologies.

Specification of controlled education, way of implementation and compensation for absences

Mid-term exam and project realization.

Classification of course in study plans

  • Programme BIT Bachelor's, 2. year of study, summer semester, 4 credits, elective

  • Programme IT-BC-3 Bachelor's

    branch BIT , 2. year of study, summer semester, 4 credits, elective

Type of course unit



26 hours, optionally

Teacher / Lecturer


  1. Introduction. Overview of computer security.
  2. Security of the L2 layer (802.1x, PAP, CHAP).
  3. Certificates. Digital signature (PKI, TKPI). Certification authority. Authentication and authorization in computer networks AAA.
  4. Attacks in computer networks.
  5. Security protocols, their analysis and verification.
  6. Design of security protocols and their application. Payment protocols.
  7. Security of L3 layer. IPsec and VPN.
  8. Security of network services. Secure transport (SSL, TLS). Security on the application layer.
  9. Firewalls. IDS and IPS systems.
  10. Security of wireless and mobile networks. WEP, WPA.
  11. Security of sensor networks. ZigBee.
  12. Security in practice.
  13. Modern trends of networks security. Course summary.

Laboratory exercise

6 hours, compulsory

Teacher / Lecturer


  1. Practical analysis of security protocol.
  2. Practical implementation of secure communication.
  3. Administration of secure communication (SSH, stunel, pgp). Creation of VPN connections. Secure connections testing.


7 hours, compulsory

Teacher / Lecturer


Practical analysis of security protocol. Practical implementation and administration of secure communication.