Lightweight detecting and resolving algorithm for firewall policy conflict

Abstract

Security is a crucial issue for many wireless sensor networks and firewall is an approach adopted by such WSNs. With the complexity of wireless sensor networks increasing faster and faster, rules are more complicated than traditional computer network. The detection and resolution of the rule conflict become a challenging aspect for such networks. This paper proposes an algorithm for firewall policy conflict detection and resolution based on segmentation strategies and Quicksort algorithm. The experiments show that the algorithm is much faster than traditional methods and is suitable for large scale WSNs.

An Immunity-Based IOT Environment Security Situation Awareness Model

“…Therefore, a firewall provides a clean interface to control bidirectional access to/from an individual application, an entire device, or a portion of a network [16]. The application of firewall has been used extensively to the conventional Internet, WSNs, and network based embedded systems [15] [19]. In IOT, the resource constrained devices are usually connected to the unreliable and untrusted Internet via IPv6 and 6LoWPAN [14], these devices will…”