Recent Blog Posts

Today we’re releasing the second edition of OpenSSL Cookbook, Feisty Duck's free OpenSSL book. This edition is a major update, with some improvements to the existing text and new content added. The new edition has about 95 pages, an increase of about 35 pages. Here’s a brief overview of what’s... MORE »

Officially, Apache Security—my first book—came to life in March 2005, when it was published by O'Reilly. But its life started earlier; in May 2004, I left my steady job in a pursuit of a more exciting future. Or perhaps a future in which I'd be spending more time doing what... MORE »

In the end-of-year post last month, I mentioned that SSL Labs APIs had been made available for early access. What that meant was that we wanted some people to have a look at our APIs and play with the open source reference client, but otherwise didn't want everyone to come... MORE »

From the SSL/TLS perspective, 2014 was quite an eventful year. The best way to describe what we at SSL Labs did is we kept running to stay in the same place. What I mean by this is that we spent a lot of time reacting to high profile vulnerabilities: Hearbleed,... MORE »


December 08, 2014

There’s a new SSL/TLS problem being announced today and it’s likely to affect some of the most popular web sites in the world, owing largely to the popularity of F5 load balancers and the fact that these devices are impacted. There are other devices known to be affected, and it’s... MORE »

Update (8 Dec 2012): Some TLS implementations are also vulnerable to the POODLE attack. More information in this follow-up blog post. After more than a week of persistent rumours, yesterday (Oct 14) we finally learned about the new SSL 3 vulnerability everyone was afraid of. The so-called POODLE attack (CVE-2014-3566)... MORE »

The news is that SHA1, a very popular hashing function, is on the way out. Strictly speaking, this development is not new. The first signs of weaknesses in SHA1 appeared (almost) ten years ago. In 2012, some calculations showed how breaking SHA1 is becoming feasible for those who can afford... MORE »

Since the official release of Bulletproof SSL and TLS last Tuesday, we've been busy submitting the book to print and ensuring it comes out just right. As a result, I now have three proofs sitting on my desk in all their glory! All the other copies are now on their... MORE »

It gives me great pleasure to announce that my book, Bulletproof SSL and TLS, has now been officially released. Writing it took me more than two years (I started in May 2012, believe it or not), during which I spent the equivalent of about 7 months of full time work.... MORE »

I've just released the June update of Bulletproof SSL and TLS. This batch completes the manuscript and brings about 80 new pages across three chapters: Chapter 1, SSL, TLS, and Cryptography, begins with a brief introduction to SSL and TLS and discusses where these secure protocols fit in the Internet... MORE »

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