As sensor networks are deployed in adversarial environments and used for critical applications such as battlefield surveillance and medical monitoring, security weaknesses become a big concern. The severe resource constraints of WSNs give rise to the need for resource bound security solutions. This paper presents SIGF (Secure Implicit Geographic Forwarding), a configurable secure routing protocol family for wireless sensor networks that provides "Good enough" security and high performance. By avoiding or limiting shared state, the protocols prevent many common attacks against routing, and contain others to the local neighborhood.
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