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A polytheistic approach to securing interdomain routing Ratul Mahajan Microsoft Research
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ratul | wired | 20062 Much work on interdomain routing security but little deployment Myriads of security protocols S-BGP soBGP SPV Listen and Whisper IRV psBGP Pretty Good BGP …
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ratul | wired | 20063 How can we explain that? Is the problem not important? Are all those approaches broken? Maybe, its futile to look for the one perfect solution One size does not fit all Coordination Incentives
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ratul | wired | 20064 A polytheistic approach Instead of designing one solution for everyone, design a broad range ISPs pick zero or more, as per their needs
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ratul | wired | 20065 How is this chaos secure? Lessons from the road network Different cars, drivers, skill-levels But the network is reasonably secure Two key underlying factors visibility and financial disincentives Hypothesis: routing can be secured by engineering these factors
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ratul | wired | 20066 Simple changes are enough Engineering visibility Pinpoint who is sourcing and propagating bad routing updates Engineering financial disincentives Build on bilateral contracts Penalties for sending bad updates to neighbors No need for regulation
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ratul | wired | 20067 The end result Appropriate aligning of incentives Each ISP does what it takes to run a secure network Security properties similar to the road network accident prevention is not guaranteed
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