Security background, Threat analysis, Vulnerability points, Techniques on Cryptography, Symmetrical and unsymmetrical cryptography, Authentication, Digital signatures, Security providing protocols, IPSec, SSL, SSH, PGP, MIME, SET. Ports, TCP/IP security, Port scanning, Network security, Information system security, Databases security, Firewalls, Sniffing tools, Defense tools, Intruder Detection Systems (IDSs), OpenSSL, Certificates, Signatures, Security framework institution, Security standards, Security politics, Legal issues.

Upon successful completion of this course, students will be able:

• to understand cryptographic techniques.
• to study and perceive the main issues of Number Theory.
• to learn and apply the well-known cryptographic algorithms.
• to comprehend the terms of authentication and digital signature.
• to design and implement computer and network security techniques (firewalls, sniffing, defense and security methodology, intrusion detection systems etc).
• to interpret security frameworks.
• to ensure anonymity and privacy.
• to develop security environments.
• to design security protocols and techniques.
• to use and apply well-known security software in real-time.

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Lectures, Labs, Lab Tasks, Semester Project

Written final exam (60%), Lab Tasks (30%), Project Presentation (10%), Oral exam (20%)

• Γκρίτζαλης Στέφανος, Γκρίτζαλης Δημήτρης Α.,Κάτσικας Σωκράτης, Ασφάλεια Δικτύων Υπολογιστών, Εκδόσεις Α. Παπασωτηρίου & ΣΙΑ ΟΕ, 2003.
• William Stallings, Βασικές Αρχές Ασφαλείας Δικτύων: Εφαρμογές και Πρότυπα, Εκδόσεις Κλειδάριθμος, 2008.
• William Stallings, Κρυπτογραφία για Ασφάλεια Δικτύων, Αρχές και Εφαρμογές, Μαρία Παρίκου & ΣΙΑ, 2011.