david wong

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.

My talk on SHA-3 and derived functions at DEF CON 25 posted December 2017

The talk I gave at defcon this year is online

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Great talk, but please defer chats with the audience next time ;)


ah yeah :) this talk definitely taught me to be faster to "take things offline"