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.

tl;dr of the sweet32 attack (On the Practical (In-)Security of 64-bit Block Ciphers) posted September 2016

I wrote about that 3-weeks-ago attack on the NCC Group's blog, but I had a bit more to say about it, so I made a tl;dr video =) enjoy!

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25 May What Is The Random Oracle Model And Why Should You Care? (Part 5)
24 May Sks Keyserver Network Under Attack (2019)
23 May Exploiting Two Buggy Srp Implementations
23 May Crisp: Compromise Resilient Identity-Based Symmetric Pake
23 May E2E Encryption For Zoom Meetings

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