david wong

Hey! I'm David, cofounder of zkSecurity and the author of the Real-World Cryptography book. I was previously a crypto architect at O(1) Labs (working on the Mina cryptocurrency), before that I was the security lead for Diem (formerly Libra) at Novi (Facebook), and 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.

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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