Password authentication with insecure communication
Communications of the ACM
SPINS: security protocols for sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Security: for ubiquitous computing
Security: for ubiquitous computing
Handbook of Applied Cryptography
Handbook of Applied Cryptography
SPINS: security protocols for sensor networks
Wireless Networks
Random Key Predistribution Schemes for Sensor Networks
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
Key Infection: Smart Trust for Smart Dust
ICNP '04 Proceedings of the 12th IEEE International Conference on Network Protocols
Energy-Efficient cryptographic engineering paradigm
iNetSec'11 Proceedings of the 2011 IFIP WG 11.4 international conference on Open Problems in Network Security
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Sensor networks are ad-hoc mobile networks that include sensor nodes with limited computational and communication capabilities. They have become an economically viable monitoring solution for a wide variety of applications. Obviously, it is important to ensure security and, taking into account limited resources available in wireless sensor networks, the use of symmetric cryptography is strongly recommended. In this paper we present a light-weight authentication model for wireless sensor networks composed of a key management and an authentication protocol. It is based on simple symmetric cryptographic primitives with very low computational requirements, and it achieves better results than other similar proposals in the literature. Compared to SPINS and BROSK protocols, our system can reduce energy consumption by up to 98% and 67% respectively. It also scales well with the size of the network, due to it only requiring one interchanged message, regardless of the total number of nodes in the network.