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:

17552 ASN.1 vs DER vs PEM vs x509 vs PKCS#7 vs ....
27683 What are x509 certificates? RFC? ASN.1? DER?
11713 Zero'ing memory, compiler optimizations and memset_s
04259 Database Encryption
16095 Fault attacks on RSA's signatures
07729 On Doing Research
10891 Key Compromise Impersonation attacks (KCI)

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The Real World Cryptography book is on sale posted last month

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 :)