Introducing CIRCL: An Advanced Cryptographic Library
June 20, 2019 2:00PM
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....
A Deep Dive Into DNS Packet Sizes: Why Smaller Packet Sizes Keep The Internet Safe
March 04, 2016 6:02PM
DNSSEC Elliptic Curves Attacks DNS ReliabilityOne way that attackers DDoS websites is by repeatedly doing DNS lookups that have small queries, but large answers. The attackers spoof their IP address so that the DNS answers are sent to the server they are attacking, this is called a reflection attack....
Go crypto: bridging the performance gap
May 07, 2015 11:06AM
Crypto TLS Elliptic Curves Speed & Reliability OpenSSLIt is no secret that we at CloudFlare love Go. We use it, and we use it a LOT. There are many things to love about Go, but what I personally find appealing is the ability to write assembly code!...
No upgrade needed: CloudFlare sites already protected from FREAK
March 04, 2015 12:32AM
Vulnerabilities OpenSSL SSL Attacks RC4The newly announced FREAK vulnerability is not a concern for CloudFlare's SSL customers. We do not support 'export grade' cryptography (which, by its nature, is weak) and we upgraded to the non-vulnerable version of OpenSSL the day it was released in early January....
ECDSA: The digital signature algorithm of a better internet
March 10, 2014 4:30PM
TLS HTTPS Crypto Elliptic Curves RSAThis blog post is dedicated to the memory of Dr. Scott Vanstone, popularizer of elliptic curve cryptography and inventor of the ECDSA algorithm. He passed away on March 2, 2014....
More Posts
October 24, 2013 4:00AM
A (Relatively Easy To Understand) Primer on Elliptic Curve Cryptography
Elliptic Curve Cryptography (ECC) is one of the most powerful but least understood types of cryptography in wide use today. At CloudFlare, we make extensive use of ECC to secure everything from our customers' HTTPS connections to how we pass data between our data centers....
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