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Nick Sullivan is Head of Cryptography at Cloudflare. He is passionate about improving security and privacy online through cutting-edge research and the development of open standards.
June 16, 2019 5:07PM
The Internet is an extraordinarily complex and evolving ecosystem. Its constituent protocols range from the ancient and archaic (hello FTP) to the modern and sleek (meet WireGuard), with a fair bit of everything in between....
September 17, 2018 1:00PM
The Internet is an amazing invention. We marvel at how it connects people, connects ideas, and makes the world smaller. But the Internet isn’t perfect. It was put together piecemeal through publicly funded research, private investment, and organic growth that has left us with an imperfect tapestry....
August 10, 2018 11:00PM
TLS 1.3 (RFC 8446) was published today. This article provides a deep dive into the changes introduced in TLS 1.3 and its impact on the future of internet security....
March 23, 2018 2:45PM
Certificate Transparency (CT) is an ambitious project to help improve security online by bringing accountability to the system that protects HTTPS. Cloudflare is announcing support for this project by introducing two new public-good services....
December 26, 2017 8:30PM
Upgrading a security protocol in an ecosystem as complex as the Internet is difficult. You need to update clients and servers and make sure everything in between continues to work correctly. The Internet is in the middle of such an upgrade right now....
November 09, 2017 4:00PM
Cloudflare supports Privacy Pass, a recently-announced privacy-preserving protocol developed in collaboration with researchers from Royal Holloway and the University of Waterloo....
September 26, 2017 1:00PM
Today we announced Geo Key Manager, a feature that gives customers control over where their private keys are stored with Cloudflare. This builds on a previous Cloudflare innovation called Keyless SSL and a novel cryptographic access control mechanism....
July 10, 2017 12:43PM
At Cloudflare our focus is making the internet faster and more secure. Today we are announcing a new enhancement to our HTTPS service: High-Reliability OCSP stapling....
July 06, 2017 1:35PM
The Internet is getting more secure every day as people enable HTTPS, the secure version of HTTP, on their sites and services....
July 03, 2017 4:21PM
Everybody has secrets. Software developers have many. Often these secrets—API tokens, TLS private keys, database passwords, SSH keys, and other sensitive data—are needed to make a service run properly and interact securely with other services....
March 15, 2017 2:00PM
Cloudflare’s mission is to help build a faster and more secure Internet. Over the last several years, the Internet Engineering Task Force (IETF) has been working on a new version of TLS, the protocol that powers the secure web....
February 07, 2017 7:31PM
Come join us on Cloudflare HQ in San Francisco on Tuesday, Febrary 28, 2017 for another cryptography meetup. We again had a great time at the last one, we decided to host another. It's becoming a pattern....
November 02, 2016 11:45PM
Come join us on Cloudflare HQ in San Francisco on Tuesday, November 22 for another cryptography meetup. We had such a great time at the last one, we decided to host another....
September 21, 2016 3:51PM
Encrypting the web is not an easy task. Various complexities prevent websites from migrating from HTTP to HTTPS, including mixed content, which can prevent sites from functioning with HTTPS....
September 20, 2016 1:04PM
The encrypted Internet is about to become a whole lot snappier. When it comes to browsing, we’ve been driving around in a beat-up car from the 90s for a while. Little does anyone know, we’re all about to trade in our station wagons for a smoking new sports car....
