Volumetric Distributed Denial of Service (DDoS) attacks have been a recurrent issue on the Internet. These attacks generate a flooding of fake network traffic to interfere with targeted servers or network links. Despite many efforts to detect and mitigate them, attackers have played a game always circumventing countermeasures. Today, there is an increase in the number of infected devices, even ...

This paper addresses the board flooding problem of Juels et al.’s coercion-resistant electronic voting scheme. A key property of this scheme is the possibility of casting invalid votes to the public board, which are indistinguishable from proper votes. Exactly this possibility is crucial for making the scheme coercion-resistant, but it also opens doors for flooding the board with an enormous am...

Distributed denial of service (DDoS) attacks continues to grow as a threat to organizations worldwide. From the first known attack in 1999 to the highly publicized Operation Ababil, the DDoS attacks have a history of flooding the victim network with an enormous number of packets, hence exhausting the resources and preventing the legitimate users to access them. After having standard DDoS defens...

With the proliferation of Internet applications and network-centric services, network and system security issues are more important than before. In the past few years, cyber attacks, including distributed denial-of-service (DDoS) attacks, have a significant increase on the Internet, resulting in degraded confidence and trusts in the use of Internet. However, the present DDoS attack detection te...

A mobile ad hoc network is set up with a group of mobile wireless nodes without the use of any dedicated routers or base stations. Each node acts as an end node as well as a router for other nodes. There are generally two types of ad hoc routing protocols, reactive and proactive routing protocols. The focus of this paper centers on reactive routing protocols which establish routes between commu...

Link-flooding attack (LFA) has emerged as a serious threat to Internet which cuts off connections between legitimate hosts and targeted servers by flooding only a few links (e.g., target links). Several mechanisms have been proposed to mitigate LFA, however, they can only mitigate LFA after target links have been compromised by adversaries. Based on the fact that adversaries rely on network lin...

The TCP connection management protocol sets a position for a classic Denial of Service (DoS) attack, called the SYN flooding attack. In this attack attacker sends a large number of TCP SYN segments, without completing the third handshaking step to quickly exhaust connection resources of the victim server. Therefore it keeps TCP from handling legitimate requests. This paper proposes that SYN flo...

Distributed denial-of-service attacks on public servers have recently become a serious problem. To assure that network services will not be interrupted and more effective defense mechanisms to protect against malicious traffic, especially SYN floods. One problem in detecting SYN flood traffic is that server nodes or firewalls cannot distinguish the SYN packets of normal TCP connections from tho...

In this paper we will explore security threats and attacks possibility and security solution for Application Server of IP Multimedia Subsystem(IMS-AS). The SIP Application Server is an important entity of IP Multimedia Subsystem (IMS) because applications providing value added services are deployed on the Application Server. The SIP Application Server is triggered by Serving Call State Control ...

Wireless networks are increasingly overwhelmed by Distributed Denial of Service (DDoS) attacks by generating flooding packets that exhaust critical computing and communication resources of a victim’s mobile device within a very short period of time. This must be protected. Effective detection of DDoS attacks requires an adaptive learning classifier, with less computational complexity, and an ac...