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.

How to Backdoor Diffie-Hellman is on ePrint posted June 2016

My latest whitepaper just got published on ePrint. It's available here.

Looking to seek answers to the recent Snowden revelations and the history of state agencies backdoors, this paper looks at what the secret spies might have been researching in order to find new ways to observe and tamper with the people's traffic. What if we just sabotaged one of the most trusted cryptographic algorithm of the last 40 years? What if we backdoored Diffie-Hellman?

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