Zero Trust Networks: In Theory and in Practice

Presented at BSidesLV 2017, July 25, 2017, 5:30 p.m. (55 minutes)

The world is changing, but our network security models are having trouble keeping up. In a time where remote work is regular and cloud mobility is paramount, the perimeter security model is showing its age -- badly. We deal with VPN tunnel overhead and management. We spend millions on fault-tolerant perimeter firewalls. We carefully manage all entry and exit points on the network, yet still we see ever-worsening breaches year over year. The Zero Trust model aims to solve these problems. Zero Trust networks are built with security at the forefront. No packet is trusted without cryptographic signatures. Policy is constructed using software and user identity rather than IP addresses. Physical location and network topology no longer matter. The Zero Trust model is very different, indeed. In this talk, we'll discuss the philosophy and origin of the Zero Trust model, what it brings to the table, and how to think about building one.

Presenters:

  • Evan Gilman - Scytale
    Evan Gilman is a site reliability engineer currently focusing on the SPIFFE standard at Scytale. With roots in academia, Evan finds passion in both reliable, performant systems, and the networks they run on. When he's not building automated network systems, he can usually be found at the nearest pinball table or beer garden. Evan is also the co-author of a recently released book titled Zero Trust Networks.
  • Doug Barth - Site Reliability Engineer - Stripe
    Doug is a Site Reliability Engineer at Stripe. With a deep interest in software, hardware, and production systems, he has spent his career using computers to solve hard problems. He helped deploy PagerDuty's IPsec mesh network, and wrote on a book about Zero Trust Networks.

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