Hey! I'm David, a security consultant at Cryptography Services, the crypto team of NCC Group . This is my blog about cryptography and security and other related topics that I find interesting.

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

BEAST: the CBC Attack on TLS
Maybe You Shouldn't Skip SHA-3
How to Backdoor Diffie-Hellman
Let's Encrypt Overview
Fault attacks on RSA signatures
Hash-Based Signatures: a 4-part Series

Here are the latest links posted:

18 Oct On User Authentication
16 Oct Blockchain
16 Oct Prime And Prejudice Primality Testing Under Adversarial Conditions
13 Oct The Illustrated Tls Connection
11 Oct Hamming, "you And Your Research" (June 6, 1995)

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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 :)