This course addresses the problems related to protection of networked information systems, both in closed (Intranet) and open (Internet) environments. Emphasis is put on protection of IP networks and networked applications for information management and e commerce.

TCP/IP networks
Operating systems
Programming in C, C++ or Java.

ICT systems (in)security: problems and attacks (sniffing, spoofing, DOS, ').
Basic protection techniques: steganography, cryptography, digest, X.509 certificates, certification authorities (CA) and public-key infrastructures (PKI).
Authentication techniques (password, challenges, Kerberos) and related hardware devices (token and smart-card).
Network security: the IPsec standard to protect IP networks; security of the network configuration and management protocols; firewall and IDS to create protected subnets; virtual private networks (VPN); security of wireless networks.
Application security: e-mail protection (PGP, S/MIME), web security (SSL, TLS) and remote access protection (SSH, SSL, TLS).
Secure document workflow and e-commerce; national and international legislation about e documents; digital signature and e documents; the SET protocol and other e-payment systems.

Handouts of the teacher's notes and transparencies
W. Stallings, 'Cryptography and Network Security ' principles and practice', 3rd edition, Prentice-Hall
C. Pfleeger, S. Pfleeger, 'Security in Computing', 3rd edition, Prentice Hall

Oral examination or individual project on a specific subject.