Internship Experience: Cryptography Engineer
April 09, 2020 11:00 AM
Back in the summer of 2017 I was an intern at Cloudflare. During the scholastic year I was a grad student working on automorphic forms and computational Langlands at Berkeley....
Speeding up Linux disk encryption
March 25, 2020 12:00 PM
Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how we made it at least two times faster for ourselves and our customers!...
Pwned Passwords Padding (ft. Lava Lamps and Workers)
March 04, 2020 1:00 PM
Starting today, we are offering a new security advancement in the Pwned Passwords API - API clients can receive responses padded with random data....
Going Keyless Everywhere
November 01, 2019 1:01 PM
Time flies. The Heartbleed vulnerability was discovered just over five and a half years ago. Heartbleed became a household name not only because it was one of the first bugs with its own web page and logo, but because of what it revealed about the fragility of the Internet as a whole....
Delegated Credentials for TLS
November 01, 2019 1:00 PM
Announcing support for a new cryptographic protocol making it possible to deploy encrypted services while still maintaining performance and control of private keys: Delegated Credentials for TLS. ...
MORE POSTS
October 30, 2019 1:00 PM
The TLS Post-Quantum Experiment
In a June 2019 experiment with Google, we implemented two post-quantum key exchanges, integrated them into our TLS stack and deployed the implementation on edge servers and in Chrome Canary clients....
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October 29, 2019 1:00 PM
DNS Encryption Explained
The Domain Name System (DNS) is the address book of the Internet. When you visit cloudflare.com or any other site, your browser will ask a DNS resolver for the IP address where the website can be found. Unfortunately, these DNS queries and answers are typically unprotected....
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October 28, 2019 1:00 PM
Supporting the latest version of the Privacy Pass Protocol
At Cloudflare, we are committed to supporting and developing new privacy-preserving technologies that benefit all Internet users. In November 2017, we announced server-side support for the Privacy Pass protocol, a piece of work developed in collaboration with the academic communi...
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October 27, 2019 11:00 PM
Tales from the Crypt(o team)
Halloween season is upon us. This week we’re sharing a series of blog posts about work being done at Cloudflare involving cryptography, one of the spookiest technologies around....
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September 18, 2019 2:03 PM
Cloudflare’s Approach to Research
Cloudflare’s mission is to help build a better Internet. One of the tools used in pursuit of this goal is computer science research. We’ve learned that some of the difficult problems to solve are best approached through research...
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June 21, 2019 1:00 PM
Introducing time.cloudflare.com
Cloudflare has always been a leader in deploying secure versions of insecure Internet protocols and making them available for free for anyone to use. In 2014, we launched one of the world’s first free, secure HTTPS service (Universal SSL) to go along with our existing free HTTP p...
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June 20, 2019 1:02 PM
The Quantum Menace
The impact of quantum computing on cryptography conducts research and development towards a Post-Quantum era....
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June 20, 2019 1:01 PM
Towards Post-Quantum Cryptography in TLS
In anticipation of wide-spread quantum computing, the transition from classical public-key cryptography primitives to post-quantum (PQ) alternatives has started....
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June 20, 2019 1:00 PM
Introducing CIRCL: An Advanced Cryptographic Library
Today we are proud to release the source code of a cryptographic library we’ve been working on: a collection of cryptographic primitives written in Go, called CIRCL. ...
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June 19, 2019 1:01 PM
Cloudflare's Ethereum Gateway
Today, we are excited to announce Cloudflare's Ethereum Gateway, where you can interact with the Ethereum network without installing any software on your computer....
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June 19, 2019 1:00 PM
Continuing to Improve our IPFS Gateway
When we launched our InterPlanetary File System (IPFS) gateway last year we were blown away by the positive reception. ...
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June 18, 2019 1:00 PM
Securing Certificate Issuance using Multipath Domain Control Validation
Trust on the Internet is underpinned by the Public Key Infrastructure (PKI). PKI grants servers the ability to securely serve websites by issuing digital certificates, providing the foundation for encrypted and authentic communication. ...
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June 17, 2019 1:01 PM
League of Entropy: Not All Heroes Wear Capes
Everything from cryptography to big money lottery to quantum mechanics requires some form of randomness. But what exactly does it mean for a number to be randomly generated and where does the randomness come from?...
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June 17, 2019 1:00 PM
Inside the Entropy
Generating random outcomes is an essential part of everyday life; from lottery drawings and constructing competitions, to performing deep cryptographic computations. ...
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