Wednesday, October 28, 2009

Lecture 6 : Security in Networks & Applications

:: Who cause security problem ?

- Hacker, spy, student, businesman, ex - employee, stockrbroker, terrorist, programmer.

:: Network security area :

- authentication, secrecy, non-repudiation, integrity control.

:: Network security issues:

- Sharing, complexity, unknown parameter, many point of attack, unknown path, label format differences, anonymity

:: Threat in Networks

- Privacy, data integrity,authenticity,covert channels, impersonating,eavesdropping,denial of service, packet replay and packet modification.

::Network Security Control

- Encryption, firewall, VPN (Virtual Private Network), SSH Encryption, SSL Encryption , IPSec, kerberos.