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The Border Gateway Protocol (BGP), which is used to distribute routing information between autonomous systems, is an important component of the Internet's routing infrastructure. Secure BGP (S-BGP) addresses critical BGP vulnerabilities by providing a scalable means of verifying the authenticity and authorization of BGP control traffic. To facilitate widespread adoption, S-BGP must avoid introducing undue overhead (processing, bandwidth, storage) and must be incrementally deployable, i.e., interoperable with BGP. To provide a proof of concept demonstration, the authors developed a prototype implementation of S-BGP and deployed it in DARPA's CAIRN testbed.
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