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
Perfectly-Secure Key Distribution for Dynamic Conferences
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Random Key Predistribution Schemes for Sensor Networks
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
LEAP: efficient security mechanisms for large-scale distributed sensor networks
Proceedings of the 10th ACM conference on Computer and communications security
Location-based pairwise key establishments for static sensor networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
Wireless sensor network localization techniques
Computer Networks: The International Journal of Computer and Telecommunications Networking
Efficient Hybrid Security Mechanisms for Heterogeneous Sensor Networks
IEEE Transactions on Mobile Computing
An efficient key distribution scheme for heterogeneous sensor networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Centralized Key Management Scheme in Wireless Sensor Networks
Wireless Personal Communications: An International Journal
International Journal of Internet Technology and Secured Transactions
Multihop-Based key management in hierarchical wireless sensor network
GPC'12 Proceedings of the 7th international conference on Advances in Grid and Pervasive Computing
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Key management is considered as the fundamental part of any secure communication. A secure wireless sensor network communication protocol relies on an efficient key management system. In sensor networks some random pre-distribution schemes are proposed for key management protocols. Connectivity and resiliency are two important criteria in key management. There is a trade-off between connectivity and resiliency in random key predistribution since increasing one decreases the other one and vice versa. In this paper we propose a new key management scheme in heterogeneous wireless sensor networks in which tradeoff between these criteria is lower than other schemes. This scheme consists of four stage key pre-distribution, localization and seed assignment, deriving new keys and shared key discovery. Simulation and analytical results show that proposed scheme has higher connectivity and resiliency and needs lower storage space compared to AP and EG key management schemes.