scholarly journals Energy efficient Key Distribution for Wireless Sensor Networks

2018 ◽  
Vol 7 (4.6) ◽  
pp. 45
Author(s):  
Ramu Ramu Kuchipudi ◽  
Dr. Ahmed Abdul Moiz Qyser ◽  
Dr. V V S S S Balaram
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Mobile Agents ◽  
Secure Communication ◽  
Mutual Authentication ◽  
Key Distribution ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Sensitive Information

Key distribution in Wireless sensor networks is crucial whenever they deployed in critical applications. Cryptography is used to protect sensitive information from disclosure. Key management is important component in cryptography. Cryptography is not useful if keys are disclosed to attackers. Designing an efficient key management for sensor network is a difficult task because of scarcity of computing and memory resources. An efficient key distribution approach is proposed by using mobile agent paradigm rather than client server model. The proposed approach will use good features of both symmetric and asymmetric cryptography. Mobile Agents are used to generate public and private key pairs, update keys and revocation of keys. The proposed scheme in the first level will use mobile agents for public key dissemination and in second level sensor nodes can involve in constructing symmetric keys for secure communication through mutual authentication and encryption with those keys. The proposed method is implemented using NS2 Simulator and results are compared with existing similar methods in terms of evaluation parameters like throughput and resiliency. The proposed method is improved when it is compared with similar existing methods. 

scholarly journals Safe Data Transfer Using Logic Gate Based Cryptographic Technique in Wireless Sensor Network

2021 ◽  
Vol 10 (4) ◽  
pp. 2877-2884
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Secure Communication ◽  
Data Transfer ◽  
Logic Gate ◽  
Base Station ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Cryptographic Techniques

Wireless Sensor Networks consist of independent sensor nodes attached to one base station. In wireless sensor networks, nodes are connected to sensing environment and communicate the data to the base station. As WSNs continues to grow, they become vulnerable to attacks and hence the need for operative security techniques. Applications of wireless sensor networks demands for the well-organized and secure communication. For the solution of well-organized and reliable security, we need cryptography algorithms which provide good solutions. For providing reliable security techniques mainly data confidentiality, key management is used. Identification of suitable cryptographic techniques for WSNs is an important challenge due to limitation of energy, computation capability and memory of the sensor nodes. Symmetric cryptography techniques do not act well when the number of sensor nodes increases. Hence asymmetric key cryptographic techniques are widely used. Here we propose an electronic logic gate based symmetric Cryptographic technique which is more suitable for small and medium WSNs.

Delaunay Triangulation Based Key Distribution for Three-Dimensional Wireless Sensor Networks

2021 ◽  
pp. 2150009
Author(s):  
Monjul Saikia
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Delaunay Triangulation ◽  
Secure Communication ◽  
Three Dimensional ◽  
Key Distribution ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Secret Key ◽  
Symmetric Key

The security of wireless sensor networks is a significant concern and can be achieved by the application of cryptographic algorithms. The symmetric key encryption techniques are widely used cryptographic mechanisms for the security of sensor networks due to its low computational complexity. A symmetric key encryption technique requires a secret key to be shared between both parties for confidential communication. In a wireless sensor network, it is difficult to know which node is going to be in its communication range at the deployment phase. If prior knowledge of sensor location exists, it is an added advantage and helps in the distribution of secret keys among nodes. Even if with the expected location information, distributing the keys properly among the nodes is a challenging task. A proper algorithm must be used so that it gives the adequate utilization of the distributed keys with a minimal number of keys per sensor node. In this paper, we propose a location-dependent key distribution scheme. We use Delaunay Triangulation for the efficient distribution of keys among sensor nodes. The method gives a high probability of secure communication links among nodes with high resilience to the network.

Establishing Different Pairwise Keys Based-On LEACH for Securing Wireless Sensor Networks

2014 ◽  
Vol 568-570 ◽  
pp. 546-549
Author(s):  
Yan Ling Cui
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Secure Communication ◽  
Group Key Management ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Management Scheme ◽  
Communication Policies ◽  
Power And Energy

The communication security problems for wireless sensor networks are exacerbated by the limited power and energy of the sensor devices. The focus of this paper is to design a lightweight group key management scheme to safeguard the data packet passing on the sensor networks. The design of the protocol is motivated by the observation that many sensor nodes in the network play different roles. We describe the design and implementation of establishing different pairwise keys based on LEACH. The protocol contains group communication policies, group membership requirements for secure communication under different types of attacks.

scholarly journals Key Management and Cryptography in Wireless Sensor Networks

2020 ◽  
Vol 8 (5) ◽  
pp. 3847-4851
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Secure Communication ◽  
Data Communication ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Secret Key ◽  
Healthcare Applications ◽  
Intended Receiver

The use of Wireless Sensor Networks (WSN) in the field of military, battlefield, healthcare applications etc has seen a plethora of growth towards variety of sensory devices. Irrespective of different locations, the sensor nodes has to do its task. Hence, the dynamic wireless sensor networks should ensure better quality of sensor nodes that covers wider network area and additional services in relative to static WSNs systems. By doing so, it requires secure data communication among the sensor nodes in wireless environment. Key Management is the recent security concept enabled to provide secure communication between sender and receiver nodes. In this paper, we have proposed efficient key updates systems between the nodes. In any scenario, the nodes may join or leaves the network environment which facilitates to initiate a secret key between intended sender and intended receiver. A certificate less key secrecy system is designed for secure communication in wireless links. By designing so, we have addressed the issues like node authentication, data confidentiality and data integrity. Experimental analyses have shown the effectiveness of proposed system.

scholarly journals Mobile Device Based Dynamic Key Management Protocols for Wireless Sensor Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Chin-Ling Chen ◽  
Chih-Cheng Chen ◽  
De-Kui Li
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Base Station ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Direct Access ◽  
Session Key ◽  
Dynamic Key Management ◽  
Dynamic Key

In recent years, wireless sensor network (WSN) applications have tended to transmit data hop by hop, from sensor nodes through cluster nodes to the base station. As a result, users must collect data from the base station. This study considers two different applications: hop by hop transmission of data from cluster nodes to the base station and the direct access to cluster nodes data by mobile users via mobile devices. Due to the hardware limitations of WSNs, some low-cost operations such as symmetric cryptographic algorithms and hash functions are used to implement a dynamic key management. The session key can be updated to prevent threats of attack from each communication. With these methods, the data gathered in wireless sensor networks can be more securely communicated. Moreover, the proposed scheme is analyzed and compared with related schemes. In addition, an NS2 simulation is developed in which the experimental results show that the designed communication protocol is workable.

scholarly journals An efficient approach for secured communication in wireless sensor networks

2020 ◽  
Vol 10 (2) ◽  
pp. 1641
Author(s):  
Jyothi R. ◽  
Nagaraj G. Cholli
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Main Concern ◽  
Limited Bandwidth ◽  
New Type ◽  
Symmetric Key ◽  
Secured Communication

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.

Applied Technology for Typical Attacks and Security Mechanisms in Wireless Sensor Networks

2014 ◽  
Vol 977 ◽  
pp. 484-490
Author(s):  
Run Zeng
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Sensor Nodes ◽  
Security Requirements ◽  
Wireless Sensor ◽  
Sensitive Information ◽  
Resource Constrained ◽  
Advantages And Disadvantages ◽  
Applied Technology ◽  
The Way

Wireless Sensor Networks (WSNs) are used in many applications in military and commercial areas. These applications often include the monitoring of sensitive information such as enemy movement on the battlefield or the location of personnel in a building. However, due to the highly resource constrained in sensor nodes, traditional security strategies always can do few with attacks on WSNs. In this Paper, we proposes a study of attacks and security mechanisms in WSNs. First, we summarize the attacks to WSNs and the security requirements based on the TCP\IP networking model, then we present the security solutions to each attack. Along the way we highlight the advantages and disadvantages of various WSN solutions and further compare and evaluate these solutions.

A Novel Key Management Strategy for Heterogeneous Wireless Sensor Networks

2013 ◽  
Vol 818 ◽  
pp. 224-229
Author(s):  
Yu Quan Zhang
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Management Strategy ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Key Predistribution ◽  
Heterogeneous Wireless Sensor Networks ◽  
Heterogeneous Nodes ◽  
Random Key Predistribution

A key management strategy is presented for heterogeneous wireless sensor networks. The wireless sensor networks have some sensor nodes which have greater power and transmission capability than other nodes have. Both ordinary nodes and heterogeneous nodes are evenly distributed in sensing square area respectively. The pairwise keys between nodes are established through utilizing the concept of the overlap key sharing and the random key predistribution scheme. Analysis and comparison demonstrate that the connectivity and security of wireless sensor networks have been improved obviously even with some heterogeneous nodes.

scholarly journals Security in wireless sensor networks

2019 ◽  
Vol 8 (1) ◽  
pp. 13
Author(s):  
Bahae ABIDI ◽  
Abdelillah JILBAB ◽  
Mohamed EL HAZITI
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Data Aggregation ◽  
Secure Communication ◽  
Base Station ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Aggregated Data ◽  
Secure Data ◽  
Secure Data Aggregation

Even in difficult places to reach, the new networking technique allows the easy deployment of sensor networks, although these wireless sensor networks confront a lot of constraints. The major constraint is related to the quality of information sent by the network. The wireless sensor networks use different methods to achieve data to the base station. Data aggregation is an important one, used by these wireless sensor networks. But this aggregated data can be subject to several types of attacks and provides security is necessary to resist against malicious attacks, secure communication between severely resource constrained sensor nodes while maintaining the flexibility of the topology changes. Recently, several secure data aggregation schemes have been proposed for wireless sensor networks, it provides better security compared with traditional aggregation. In this paper, we try to focus on giving a brief statement of the various approaches used for the purpose of secure data aggregation in wireless sensor networks.

scholarly journals Using bivariate polynomial to design a dynamic key management scheme for wireless sensor networks

2013 ◽  
Vol 10 (2) ◽  
pp. 589-609 ◽  
Author(s):  
Chin-Ling Chen ◽  
Yu-Ting Tsai ◽  
Aniello Castiglione ◽  
Francesco Palmieri
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Base Station ◽  
Sensor Nodes ◽  
Security Requirements ◽  
Wireless Sensor ◽  
Bivariate Polynomial ◽  
Management Scheme ◽  
Key Management Scheme

Wireless sensor networks (WSN) have become increasingly popular in monitoring environments such as: disaster relief operations, seismic data collection, monitoring wildlife and military intelligence. The sensor typically consists of small, inexpensive, battery-powered sensing devices fitted with wireless transmitters, which can be spatially scattered to form an ad hoc hierarchically structured network. Recently, the global positioning system (GPS) facilities were embedded into the sensor node architecture to identify its location within the operating environment. This mechanism may be exploited to extend the WSN?s applications. To face with the security requirements and challenges in hierarchical WSNs, we propose a dynamic location-aware key management scheme based on the bivariate polynomial key predistribution, where the aggregation cluster nodes can easily find their best routing path to the base station, by containing the energy consumption, storage and computation demands in both the cluster nodes and the sensor nodes. This scheme is robust from the security point of view and able to work efficiently, despite the highly constrained nature of sensor nodes.

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