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:

06396 Bits and Bytes ordering in 5 minutes
27702 Hash-Based Signatures Part I: One-Time Signatures (OTS)
13536 How to Backdoor Diffie-Hellman: quick explanation
11995 The Strobe Protocol Framework
11719 On Doing Research
25427 ASN.1 vs DER vs PEM vs x509 vs PKCS#7 vs ....
44179 Maybe you shouldn't skip SHA-3

Here are the latest links posted:

12 Jan Publishing A New Idea
12 Jan Confidential Consortium Framework
10 Jan The Internet Of Broken Protocols: Showcase #9
09 Jan Supersingular Isogeny Key Exchange For Not-Quite Beginners
09 Jan Boneh And Shoup Book Draft Version 5

You can also suggest a link.

Breaking beer ciphers posted April 2015

Apparently a beer was made with a cipher on it, and that is the story of one dude breaking it.

It reminds me a bit of the anssi logo challenge (in french).

Thx to my coworker Vitaly for the link!

Well done! You've reached the end of my post. Now you can leave me a comment :)

ddddavidee

mauvais lien! ;-)

david

corrige merci :)