Computer networks security and firewalls

ABSTRACT COMPUTER NETWORKS SECURITY AND FIREWALLS Hakan ÇAKAR Firat University Graduate School of Natural and Applied Sciences Department of Electronic and Computer Education 2005, Page:82 In this thesis, the security problems in computer networks, security providing methods, attack types, protection mechanisms, security classifications and firewall structure were examined. ISA Server system was realized as firewall application. Effects and features of this system were investigated on an assembled little scale network. Furthermore, a software related to RSA and Elliptic Curve Encryption algorithms that provide high security and speed in communication applications has been prepared and the running of these algorithms has been demonstrated in this software. Keywords: Firewall, ISA Server, RSA Algorithm, Elliptic Curve Algorithm IX