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Providing End-to-End Secure Communications 
in Wireless Sensor Networks

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  • System requirement
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Providing desirable data security, that is, confidentiality, authenticity, and availability, in wireless sensor networks (WSNs) is challenging, as a WSN usually consists of a large number of resource constraint sensor nodes that are generally deployed in unattended/hostile environments and, hence, are exposed to many types of severe insider attacks due to node compromise. Existing security designs mostly provide a hop-by-hop security paradigm and thus are vulnerable to such attacks. Furthermore, existing security designs are also vulnerable to many types of denial of service (DoS) attacks, such as report disruption attacks and selective forwarding attacks and thus put data availability at stake. In this paper, we seek to overcome these vulnerabilities for large-scale static WSNs. We come up with a location-aware end-to-end security framework in which secret keys are bound to geographic locations and each node stores a few keys based on its own location. This location-aware property effectively limits the impact of compromised nodes only to their vicinity without affecting end-to-end data security. The proposed multifunctional key management framework assures both node-to-sink and node-to-node authentication along the report forwarding routes. Moreover, the proposed data delivery approach guarantees efficient en-route bogus data filtering and is highly robust against DoS attacks. The evaluation demonstrates that the proposed design is highly resilient against an increasing number of compromised nodes and effective in energy savings.

Hardware Configuration

Processor               : P 4 700GHz
Speed                      : 1.7 GHz.
RAM                       : 1GB
Hard Disk                : 40 GB HDD
Monitor                   : 15” digital color monitor
Keyboard                : 104 keys
Mouse                     : Logitech Mouse

 

Software Specification

Operating System  : Windows XP
Front End                : Vb.net
Backend                  : Sql Server

 

Existing System :

In many Wireless Sensor Networks (WSNs), providing  end to end secure communications between sensors and  the sink is important for secure network management. While there have been many works devoted to hop by hop secure communications, the issue of end to end secure communications Is largely ignored.

 

Proposed System :

In this paper, we design an end to end secure communication protocol in randomly deployed WSNs.Specifically, our protocol is based on a methodology called differentiated key pre-distribution. The core idea is to distribute different number of keys to different sensors to enhance the resilience of certain links. This feature is leveraged during  routing, where nodes route through those links with higher resilience. Using rigorous theoretical analysis, we derive an expression for the quality of end to end secure communications, and use it to determine optimum protocol parameters. Extensive performance evaluation illustrates that our solutions can provide highly secure communications between sensor nodes and the sink in randomly deployed WSNs. We also provide detailed discussion on a potential attack (i.e. biased node capturing attack) to our solutions, and propose several countermeasures to this attack. in WSNs, we need to use hop by hop based encryption/decryption in providing end to end secure communications.