Key Retrieval Mechanism for Data Aggregation in IPKE Managed WSN  
  Authors : Sheetal Pawar; Dr. J. W. Bakal

 

Establishment of pairwise keys in wireless sensor networks is a fundamental security service, which forms the basis of other security services such as authentication and encryption. However, due to the resource constraints on sensor nodes, establishing pairwise keys in wireless sensor networks is not a trivial task. For the existing key pre-distribution schemes, as the number of compromised nodes increasing, the fraction of affected pairwise keys will increase quickly. As a result, a small number of compromised nodes may affect a large fraction of pairwise. The main purpose of providing security for node is to send data to sink node securely. In existing scheme IPKE node to node delivery is secured but if any node is compromised then data passing through it is also visible to attacker. This problem can be solved if a tunnel is formed between source node and sink node. In this case no intermediate node can interpret data as it is encrypted with the key shared by source node and sink node.

 

Published In : IJCAT Journal Volume 1, Issue 6

Date of Publication : 31 July 2014

Pages : 270 - 277

Figures :02

Tables : 04

Publication Link : Key Retrieval Mechanism for Data Aggregation in IPKE Managed WSN

 

 

 

Sheetal Pawar : ME Student, Department of Computer Engineering, MGM’s College of Engineering & Technology Kamothe, Navi Mumbai, University of Mumbai, India.

Dr. J. W. Bakal : Principal, S. S. Jondhale College of Engineering & Technology Dombivali, Mumbai, University of Mumbai, India.

 

 

 

 

 

 

 

Key pre-distribution

Pairwise keys

Wireless sensor network

Improved Pairwise Key Establishment (IPKE)

Key Distribution Center (KDC)

This protocol can be revised to add some security features. WSN and data aggregation techniques can be improved further to ensure extra security. As depth of node tree increases delivery time also increases. For a big network, clustering can be done and multiple sinks can be added. As memory size of sensors is always limited key matrix cannot store keys for large network in such a case network clusters are needed. Although the techniques prove that security in WSN is improved but one cannot guaranty that it cannot be compromised. If any using this protocol sensor nodes can’t be protected from physical attacks.

 

 

 

 

 

 

 

 

 

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