October 31, 2019 1:00PM

Several months ago we announced that we were providing a new public time service. Part of what we were providing was the first major deployment of the new Network Time Security protocol, with a newly written implementation of NTS in Rust....

By 
• Watson Ladd
• ,  Pop Chunhapanya

October 30, 2019 1:00PM

In June, we announced a wide-scale post-quantum experiment with Google. We implemented two post-quantum (i.e., not yet known to be broken by quantum computers) key exchanges, integrated them into our TLS stack and deployed the implementation on our edge servers and in Chrome Canary clients....

By 
• Kris Kwiatkowski
• ,  Luke Valenta

October 29, 2019 1:00PM

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....

By 
• Peter Wu

October 29, 2019 7:16AM

It was fifty years ago when the very first network packet took flight from the Los Angeles campus at UCLA to the Stanford Research Institute (SRI) building in Palo Alto. Those two California sites had kicked-off the world of packet networking, of the Arpanet, and of the modern Internet ......

By 
• Martin J Levy

October 29, 2019 7:15AM

On 29 October 2019, Professor Leonard (“Len”) Kleinrock is chairing a celebration at the University of California, Los Angeles (UCLA). The date is the fiftieth anniversary of the first full system test and remote host-to-host login over the Arpanet....

By 
• Guest Author

October 28, 2019 1:00PM

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 community....

By 
• Alex Davidson

October 27, 2019 11:00PM

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....

By 
• Nick Sullivan

October 25, 2019 1:00PM

If your organization uses SSH public keys, it’s entirely possible you have already lost one. There is a file sitting in a backup or on a former employees computer which grants the holder access to your infrastructure....

By 
• Sam Rhea
• ,  Evan Johnson

October 24, 2019 5:27PM

Three vulnerabilities were disclosed as Cache Poisoning Denial of Service attacks in a paper written by Hoai Viet Nguyen, Luigi Lo Iacono, and Hannes Federrath of TH Köln - University of Applied Sciences. These attacks are similar to the cache poisoning attacks presented last year at DEFCON....

By 
• Rustam Lalkaka