Signposts: end-to-end networking in a world of middleboxes

  • Authors:
  • Amir Chaudhry;Anil Madhavapeddy;Charalampos Rotsos;Richard Mortier;Andrius Aucinas;Jon Crowcroft;Sebastian Probst Eide;Steven Hand;Andrew W. Moore;Narseo Vallina-Rodriguez

  • Affiliations:
  • University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Nottingham, Nottingham, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom;University of Cambridge, Cambridge, United Kingdom

  • Venue:
  • ACM SIGCOMM Computer Communication Review - Special october issue SIGCOMM '12
  • Year:
  • 2012

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Abstract

This demo presents Signposts, a system to provide users with a secure, simple mechanism to establish and maintain communication channels between their personal cloud of named devices. Signpost names exist in the DNSSEC hierarchy, and resolve to secure end-points when accessed by existing DNS clients. Signpost clients intercept user connection intentions while adding privacy and multipath support. Signpost servers co-ordinate clients to dynamically discover routes and overcome the middleboxes that pervade modern edge networks. The demo will show a simple scenario where an individual's personal devices (phone, laptop) are interconnected via Signposts while sitting on different networks behind various middleboxes. As a result they will be able to fetch and push data between each other, demonstrated by, e.g., simple web browsing, even as the network configuration changes.