European Academic Research ISSN 2286-4822
ISSN-L 2286-4822
Impact Factor: 3.4546 (UIF)
DRJI Value : 5.9 (B+)
Article Details :
Article Name :
A Paper Critique on Network Security and Attack Defense Mechanism for Wireless Sensor Networks
Author Name :
Allysa Ashley M. Palaming
Publisher :
Bridge Center
Article URL :
Abstract :
In this report the authors discussed the severe constraints and demanding deployment environments of wireless sensor networks make security for these systems more challenging than for conventional networks. However, several properties of sensor networks may help address the challenge of building secure networks. The unique aspects of sensor networks may allow novel defenses not available in conventional networks. Further, the authors investigate the security related issues and challenges in wireless sensor networks. It identifies the security threats, and review proposed security mechanisms for wireless sensor networks. It was explained the concept of LEAP supports the establishment of four types of keys for each sensor node – an individual key shared with the base station, a pairwise key shared with another sensor node, a cluster key shared with multiple neighboring nodes, and a group key that is shared by all the nodes in the network. Mote-class versus laptop-class attacks - in moteclass (sensor-class) attacks, an adversary attacks a WSN by using a few nodes with similar capabilities as that of network nodes. There can be many potential threats to WSNs; the categories of the threats could be (a) passive information gathering, (b) subversion of node or insertion of a false node, (c) node malfunction, (d) node outage, (e) message corruption, (f) denial of service, or (g) traffic analysis. In this type of attack an attacker with a high radio transmission range (termed as a laptop-class attacker) and processing power sends HELLO packets to a number of sensor nodes which are dispersed in a large area within a WSN. Wireless sensor network (WSN) is a heterogeneous system combining thousands to millions of tiny, inexpensive sensor nodes with several distinguishing characteristics. Security is becoming a major concern for energy constrained wireless sensor network because of the broad security-critical applications of WSNs. Thus, security in WSNs has attracted a lot of attention in the recent years. The salient features of WSNs make it very challenging to design strong security protocols while still maintaining low overheads. In this paper, we have introduced some security issues, threats, and attacks in WSNs and some of the solutions. Network security for WSNs is still a very fruitful research direction to be further explored.
Keywords :
network security, attack, network management, wireless sensor, network

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