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:

11671 Key Compromise Impersonation attacks (KCI)
17249 Fault attacks on RSA's signatures
08322 On Doing Research
31019 QUIC Crypto and simple state machines
08269 How to Backdoor Diffie-Hellman: quick explanation
11820 KangarooTwelve
59864 Let's Encrypt Overview

Here are the latest links posted:

20 Oct Power Analysis To The People
20 Oct Goto 2016 • Cracking The Cipher Challenge • Simon Singh
12 Oct Ken Thompson's Unix Password
07 Oct Automating The Development Of Chosen Ciphertext Attacks
07 Oct 48Ce563F89A0Ed9414F5Aa28Ad0D96D6795F9C62

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The Real World Cryptography book is on sale posted July 2019

Hello there,

It look like my new book Real World Crypto, available on pre-access here, is the current best seller on Mannings.

best seller real world cryptography

What this means for you is that you can read the first chapters there for free (or purchase the book, you know :P) and tell me what you liked and didn't like.

What this mean for me is that I now have more pressure to finish the book.

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

ralfie

what happened to CAESAR competition? Which one should we use now?