Analysis of the SYN Flood DoS Attack

The paper analyzes systems vulnerability targeted by TCP (Transmission Control Protocol) segments when SYN flag is ON, which gives space for a DoS (Denial of Service) attack called SYN flooding attack or more often referred as a SYN flood attack. The effects of this type of attack are analyzed and presented in OPNET simulation environment. Furthermore, the paper presents two anomaly detection algorithms as an effective mechanism against this type of attack. Finally, practical approaches against SYN flood attack for Linux and Windows environment are shown

TCP-SYN Flooding Attack in Wireless Networks

This paper concerns the TCP (Transmission Control Protocol) vulnerabilities which gives space for a DoS (Denial of Service) attacks called TCP-SYN flooding which is well-known to the community for several years. The paper shows this attack in wireless as well as wired networks using perl synflood script, Wireshark network analyzer server, Windows 2008 server, and OPNET simulation environment. Using these tools an effects of this attack are shown. Finally, some effective practical mitigation techniques against SYN flooding attack for Linux and Windows systems are explained

Novel Model of Adaptive Module for Security and QoS Provisioning in Wireless Heterogeneous Networks

Considering the fact that Security and Quality-Of-Service (QoS) provisioning for multimedia traffic in Wireless Heterogeneous Networks are becoming increasingly important objectives, in this paper we are introducing a novel adaptive Security and QoS framework. This framework is planned to be implemented in integrated network architecture (UMTS, WiMAX and WLAN). The aim of our novel framework is presenting a new module that shall provide the best QoS provisioning and secure communication for a given service using one or more wireless technologies in a given time

Компарација и можности на QKD техниката

Во овој труд се разгледани современите Техники за дистрибуција на квантен клуч (Quantum Key Distribution) во областа на сигурносните комуникации, кои претставуваат еден огромен чекор напред во развојот на криптографијата и безбедносните комуникации воопшто. Со невидениот развој на квантната физика, преку самата дистрибуција на квантен клуч кој е речиси невозможно да се пробие со класичните технологии, се јавија низа нови можности, особено во сферата на криптологијата. Даден е и осврт на актуелните QKD принципи и уреди со конкретна компарација помеѓу QKD техниките. Претставени се и новитетите и можностите на истите преку низа на експерименти и апликации каде што се употребуваат

Authentication, Authorization and Accounting Provided by Diameter Protocol

The architecture and protocols for authentication, authorization, and accounting (AAA) are one of the most important design considerations in the next generation wireless networks. Many advances have been made to exploit the benefits of the current systems based on the protocol Remote Authentication Dial In User Service (RADIUS) protocol, and its evolution into the more secure, robust, and scalable Diameter protocol. Diameter is the protocol of choice for the IP multimedia subsystem (IMS) architecture, the core technology for the next generation networks. It is envisioned that Diameter will be widely used in various wired and wireless systems to facilitate robust and seamless AAA. In this paper, we provide an overview of the Diameter protocol, and short summary of the current and future trends related to the Diameterbased AAA systems