Firewalls are very important in Internet for providing security and privacy. Firewalls checks each incoming and outgoing packets based on its rules set in their policies. As per the vast requirement of services on internet the rule set in firewall policies becomes large, so the increasing number of rules in a firewall policy reduces its throughput. So, optimizing the firewalls is very important...

Everyday the usages of the Internet increase and simply a world of the data become accessible. Network providers do not want to let the provided services to be used in harmful or terrorist affairs, so they used a variety of methods to protect the special regions from the harmful data. One of the most important methods is supposed to be the firewall. Firewall stops the transfer of such packets t...

High-performance firewalls can benefit from the increasing size, speed and flexibility of advanced reconfigurable hardware. However, direct translation of conventional firewall rules in a router-based rule set often leads to inefficient hardware implementation. Moreover, such lowlevel description of firewall rules tends to be difficult to manage and to extend. We describe a framework, based on ...

This paper presents a constraint-based static analysis to prove security (confidentiality) properties of Java Card programs. We define a subset of the Java Card bytecode focussing on aspects of the Java Card firewall, method invocation, field access, variable access, shareable objects and contexts and present an analysis to compute an approximation of the set of possible value stored in each va...

A network firewall is a widespread means to enforce a security policy, however it remains a network device. Such a duality has caused a somewhat independent way of firewall development from other security management methods. Following the way firewall vendors are focused on performance problems while management issues don’t receive enough attention. Firewalls have grown to complicated computer ...