Hey! I'm David, a security engineer at the Blockchain team of Facebook, previously a security consultant for the Cryptography Services of NCC Group. I'm also the author of the Real World Cryptography book. This is my blog about cryptography and security and other related topics that I find interesting.

Markdown posted December 2013

I've changed the way I handle articles on this blog. I used to type plain html, but I'm now using the markdown syntax with the php parsedown parser.

So if you see any display errors, please tell me.

Well done! You've reached the end of my post. Now you can leave me a comment or read something else.

Here are some random popular articles:

Here are some random recent articles:

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If you don't know where to start, you might want to check these popular articles:

Here are the latest links posted:

29 Mar Differential Privacy: A Comparison Of Libraries
28 Mar Huawei Backdoors Explanation, Explained
27 Mar Open Source Is Insufficient To Solve Trust Problems In Hardware
26 Mar The Kgb Hack: 30 Years Later
25 Mar What's Left For Private Messaging?

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I'm writing a book!
You can already start reading it in early-access, and the first chapters are for free!