SPINS: security protocols for sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
A key-management scheme for distributed sensor networks
Proceedings of the 9th ACM conference on Computer and communications security
TOSSIM: accurate and scalable simulation of entire TinyOS applications
Proceedings of the 1st international conference on Embedded networked sensor systems
TinySec: a link layer security architecture for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Evaluation of Security Mechanisms in Wireless Sensor Networks
ICW '05 Proceedings of the 2005 Systems Communications
Resilient rights protection for sensor streams
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
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Wireless sensor networks increasingly become viable solutions to many challenging problems and will successively be deployed in many areas in the future. However, deploying such an open infrastructure without security in mind has often proved to be unreasonably dangerous. In this paper, we propose a new decentralized recurrent key management architecture for wireless senor networks, covering aspects of key refreshment and en-route cryptograpy. It features a balance between security and energy consumption by minimizing communication overheads between nodes. Key refreshment uses a new recurrent update algorithm while en-route cryptography allows intermediary nodes to further encrypt or not the data based on specific rules. The keying protocols involved uses only symmetric cryptographic. The analysis of the proposed security architecture demonstrates its capability to satisfy the desired security aspects while still being a lightweight solution. Moreover, compared with a system that uses public-key data encryption, the energy consumption of the algorithm is tens of times lower.