Professors Christos Xenakis
Angeliki Panou
Course category OPT/SEC
Course ID DS-806
Credits 5
Lecture hours 3 hours
Lab hours 2 hours
Digital resources View on Aristarchus (Open e-Class)

Learning Outcomes

The aim of this course is to support the students in learning the principles, concepts and applications of cryptography.
Upon successful completion of the course the student will be able:

  • to handle the basic elements of numerical theory and modular arithmetic
  • to manage cryptographic algorithms and their properties
  • basic cryptographic functions, such as pseudo-random sequences, one-way hash functions, shift and displacement networks and feistel networks.
  • the main features for symmetric and asymmetric cryptography are familiar
  • to handle key management systems and digital signatures

Course Contents

  • Basic definitions and concepts; information security.
  • Symmetric cryptography.
  • Digital signatures.
  • Authentication.
  • Public key cryptography.
  • Hash functions.
  • Integrity checking.
  • Key management and random number generators.

Recommended Readings

  • Schneier B. (1996): Applied Cryptography, 2nd Edition, John Wiley & Sons.
  • Stallings W. (2006): Cryptography and Network Security, 4th Edition, Prentice Hall.