Subject description - BE4M36KBE

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BE4M36KBE Communications Security
Roles:PO Extent of teaching:3P+2C
Department:13132 Language of teaching:EN
Guarantors:Vaněk T. Completion:Z,ZK
Lecturers:Vaněk T. Credits:6
Tutors:Burčík J., Hrad J., Macejko P., Pravda I., Vaněk T. Semester:L


The course provides a complete source of information on the field of security of information systems and information technologies. The most of information in today's world is created, transferred, stored in electronic form so information security is very important part of it. On successful completion of this course, students should be able to define the cryptographic primitives symmetric / asymmetric encryption, digital signatures, cryptographic hash function, and message authentication codes. They should be able to explain the security features offered by the latest versions of the most important security protocols operating on the TCP/IP stack (IPsec, TLS, SSH, PGP) and describe known attacks against these security protocols.

Study targets:

The students should be able to select and apply the appropriate cryptographic primitives in different application scenarios. They should be able to select the appropriate security protocols in a given scenario and configure the appropriate options for the selection of the appropriate cryptographic building blocks applied within the studied protocols.

Course outlines:

1. Introduction to cryptology
2. Block ciphers
3. Cryptographic Modes of Operation; Stream ciphers
4. Public key cryptosystems I 5. Public key cryptosystems II, Post-quantum cryptography
6. Hash functions
7. Authentication – biometrics, tokens, passwords
8. Authentication and authorization protocols
9. X.509 certificate, Certification Authority, PKI
11. Virtual Private Network security - IPsec, OpenVPN, SSL-VPN
12. Digital signature, Time Stamps, eIDAS directive
13. Security in Data Networks
14. VoIP security

Exercises outline:

1. Introduction, passing conditions, health and safety regulations
2. Cryptanalysis of monoalplhabetic substitutions
3. Cryptanalysis of polyalphabetic substitutions
4. Cryptanalysis of transposition ciphers
5. Cryptanalysis of asymmetric key ciphers
6. Mid-term test
7. Introduction to laboratory exercises
8. Laboratory exercises
9. Laboratory exercises
10. Laboratory exercises
11. Laboratory exercises
12. Laboratory exercises
13. Final Test
14. Assesment


Ferguson, Niels, Schneier, Bruce: Cryptography Engineering: Design Principles and Practical Applications Stamp M., Information Security - Principles and Practice, Wiley, 2006, ISBN: 0-471-73848-4 Mao W., Modern Cryptography - Theory & Practice, Prentice-Hall, 2004, ISBN: 0-13-066943-1 Bejtlich, Richard: The Practice of Network Security Monitoring: Understanding Incident Detection and Response, No Starch Press, 2013


1. Knowledge of modular arithmetics and algebra.
2. ISO/OSI network model, knowledge of computer networks principles
3. Programming in high-level languages (Java,C#, C/C++)

Subject is included into these academic programs:

Program Branch Role Recommended semester
MEOI2_2018 Cyber Security PO 2

Page updated 18.6.2024 17:51:23, semester: Z,L/2023-4, Z/2024-5, Send comments about the content to the Administrators of the Academic Programs Proposal and Realization: I. Halaška (K336), J. Novák (K336)