Habitat monitoring: application driver for wireless communications technology
SIGCOMM LA '01 Workshop on Data communication in Latin America and the Caribbean
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
A key-management scheme for distributed sensor networks
Proceedings of the 9th ACM conference on Computer and communications security
Random Key Predistribution Schemes for Sensor Networks
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
Establishing pairwise keys in distributed sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
Group-based key pre-distribution in wireless sensor networks
Proceedings of the 4th ACM workshop on Wireless security
A survey of key management schemes in wireless sensor networks
Computer Communications
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
Dynamic key management in sensor networks
IEEE Communications Magazine
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In wireless sensor networks, sensor nodes are generally distributed in hostile environments so the security services such as confidentiality, authentication and integrity are very important. The basis of these security services is the key management. The majority of key managements use the random key pre-distribution mechanism based on the probability model. Thus, an adversary can easily get the keys between any two non-compromised nodes by compromising some number of nodes. If the adversary gets the keys, he can modify or insert messages into the communication channels. These kinds of attacks are very critical because the adversary may mislead the operation of the networks or the application. Recently, Liu and Dong proposed a method to detect the keys which is misused by an adversary. They suggested the additional protection for non-compromised sensor nodes even if an attacker has learned the shared key between them. To detect a misused key, the traffic overhead is inevitable but their method has some inefficient aspects by performing a unidirectional misused key detection and generating unnecessary traffic. In this paper, we enhance the misused key detecting mechanism by detecting a misused key bidirectionally and removing the unnecessary traffic while the security functionality of the Liu and Dong’s scheme is preserved. Our simulation shows that the energy consumption of our scheme is 36% more efficient than that of the Liu and Dong’s scheme on average.