Cryptologie

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.

Quick access to articles on this page:

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

- Zero'ing memory, compiler optimizations and memset_s
- Let's Encrypt Overview
- KangarooTwelve
- Hash-Based Signatures Part I: One-Time Signatures (OTS)
- Database Encryption
- Problems that UDP and only UDP has
- BEAST: An Explanation of the CBC Attack on TLS

Here are the latest links posted:

26 Jan Basic Lattice Cryptography: Encryption And Fiat-Shamir Signatures
25 Jan Write Crypto Code! Don’T Publish It!
24 Jan Ask Me Anything (Ama), With Joan Daemen
23 Jan Introducing Another Free Ca As An Alternative To Let's Encrypt
22 Jan Timeline Of Quantum Computing And Communication

You can also suggest a link.

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

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