Hey! I'm David, a security engineer at the Blockchain team of Facebook, previously a security consultant for the Cryptography Services 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 popular articles:

02856 Problems that UDP and only UDP has
03878 Proof of Elgamal's semantic security using a reduction to DDH
29707 Attacks on Ethereum Smart Contracts
35773 Maybe you shouldn't skip SHA-3
02506 A New Public-Key Cryptosystem via Mersenne Numbers
03034 What is the BLS signature scheme?
02850 Database Encryption

Here are the latest links posted:

18 May Degenerate Fault Attacks On Elliptic Curve Parameters In Openssl
16 May Bitcoin Obituaries
16 May Ridl And Fallout: Mds Attacks
16 May Zombieload Attack
16 May In Pursuit Of Clarity In Obfuscation

You can also suggest a link.

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 :)