The pull of Software-Defined Network- ing (SDN) is magnetic. There are few in the networking community who have escaped its impact. As the benefits of network visibility and network device programmability are discussed, the question could be asked as to who exactly will benefit? Will it be the network operator or will it, in fact, be the network intruder? As SDN devices and systems hit the mark...

We investigate a new class of authenticate codes (A-codes) that support verification by a group of message recipients in the network coding setting. That is, a sender generates an A-code over a message such that any intermediate node or recipient can check the authenticity of the message, typically to detect pollution attacks. We call such an A-code as multi-receiver homomorphic A-code (MRHA-co...

Active networks are an exciting development in networking services in which the infrastructure provides customizable network services to packets. These custom network services can be deployed by the user inside the packets themselves. Furthermore, the custom network services require that the infrastructure perform much more sophisticated operations on packets than the traditional forwarding. Co...

Providing network security is one of the most important tasks in today’s Internet. Unfortunately, many users are not able to protect themselves and their networks. Therefore, we present a novel security concept to protect users by providing security measures at the Internet Service Provider (ISP) level. Already now, ISP are using different security measures, e.g. Virtual Local Area Network tags...

Intrusion Detection System is significant in network security. It detects and identifies intrusion behavior or intrusion attempts in a computer system by monitoring and analyzing the network packets in real time. In the recent year, intelligent algorithms applied in the intrusion detection system (IDS) have been an increasing concern with the rapid growth of the network security. IDS data deals...

Wireless Sensor Network (WSN) is an emerging technology that shows great promise for various futuristic applications both for mass public and military. These small, low-cost, low-powers, multifunctional sensor nodes can communicate in short distances. There is currently enormous research potential in the field of wireless sensor network security. The major challenge for employing any efficient ...

The selection of security schemes against Wormhole Attack (WHA) in next generation heterogeneous networks is based on major factors: authentication, confidentiality, and integrity and data availability. The effect of this active threat on Quality of Service (QoS) of the Integrated Universal Mobile Telecommunications System (UMTS) and Wireless Local Area Network (WLAN) Ad Hoc network can be mini...

Data security has become a major issue in most network protocols. For wireless system, security support is even more important to protect the users as well as the network. Due to this importance, different protocol were designed & deployed with network standards in order to add the security. The security sub layer of IEEE 802.16 employs an authenticated client/server key management protocol in ...

DHCP (Dynamic Host Configuration Protocol) [1, 2] is widely deployed in resource allocation and intranet management. However, DHCP mechanism is not mandatory, and DHCP server can neither force DHCP clients to release their leases, nor enforce cooperation from externally configured hosts that are DHCP-unaware. Although new DHCP options such as DHCP reconfigure extension [3] have been proposed, t...

Vulnerability is one of the key factors that cause security incidents and has become a major international threat to network security. Vulnerability is a weakness which allows an attacker to reduce a system's information assurance. Vulnerability disclosure or the disclosure of a vulnerability is the revelation of a vulnerability to the public at large. Previous work like Common Vulnerabilities ...