An efficient approach for secured communication in wireless sensor networks

Abstract

Wireless sensor network (WSN) have limited bandwidth, low computational functions, energy constraints. Inspite of these constraints, WSN is useful where communication happens without infrastructure support. The main concern of WSN is the security as the sensor nodes may be attacked and information may be hacked. Security of WSN should have the capability to ensure that the message received was sent by the particular sent node and not modified during transmission. WSN applications require lightweight and strong authentication mechanisms for obtaining data from unprivileged users. In wireless sensor networks, authentication is the effective method to stop unauthorized and undisrupted communication service. In order to strengthen the authenticated communication, several researchers have developed mechanisms. Some of the techniques work with identifying the attacked node or detecting injected bogus message in the network. Encryption and decryption are the popular methods of providing the security. These are based on either public-key or symmetric-key cryptosystems Many of the existing solutions have limitations in communication and computational expertise. Also, the existing mechanisms lack in providing strength and scalability of the network. In order address these issues; a polynomial based method was introduced in recent days. Key distribution is a significant aspect in key management in WSNs. The simplest method of distribution of key is by hand which was used in the days of couriers. Now a days, most distribution of keys is done automatically. The automatic distribution of keys is essential and convenient in networks that require two parties to transmit their security keys in the same communication medium. In this work, a new type of key exchange mechanism is proposed. The proposed method for authentication among sensor nodes proves to be promising as per the simulation results. The nodes which are unknown to each other setup a private however arbitrary key for the symmetric key cryptosystem.

Survey on data aggregation based security attacks in wireless sensor network

“…The various schemes have been classified depending on the type of the encryption utilized as in Table 3. Symmetric encryption has the same key for encryption and decryption [49], [50]. The key must be transmitted securely between the sensor nodes.…”

Malicious attacks modelling: a prevention approach for ad hoc network security

“…On the other hand, a mathematical model-based approach has been developed to detect the malevolent intent of mobile agents in the event that they go rogue, in order to stop DoS assaults in vehicular ad hoc network (VANET) [30]- [34]. Considering this literature, many ensemble approaches have been suggested in recent works to address the problems with single classifiers [35]- [37]. Therefore, highly scalable and voting-based ensemble models were proposed [38]- [40].…”

Analysis of design goals of cryptography algorithms based on different components

“…Such threats may be considered as one of the most important obstacles to the development of IoT [45], [46]. It is also observed that the optimal use of resources has received more attention over time [47], [48], and this is due to the development of wireless networks with limited resources, the Internet of Things, and the increasing use of sensors.…”