David Wong

cryptologie.net

cryptography, security, and random thoughts

Hey! I'm David, cofounder of zkSecurity, research advisor at Archetype, and author of the Real-World Cryptography book. I was previously a cryptography architect of Mina at O(1) Labs, the security lead for Libra/Diem at Facebook, and a security engineer at the Cryptography Services of NCC Group. Welcome to my blog about cryptography, security, and other related topics.

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Public Audits

blog

I’ve participated in multiple public audits since I’ve started working at the Cryptography Services of NCC Group. People can often see my work through the research I do, but a good chunk of my time is spent auditing and breaking real world applications. NCC Group sometimes release public reports and I think it is a good opportunity for outsiders to see what I work on, and what the audit-part of my work looks like.

Recently, two reports were published with my name on it. The Android Pie and Nucypher PRE library.

Unfortunately we rarely release much details when we find critical vulnerabilities, so the more interesting reports are always partially published (like the Google one) or just not public. One day I’ll find a way to talk about (without leaking out any information about clients of course) some of the juicy findings I and others have found in my years of consulting. Some of these war stories are extremely entertaining. We sometimes don’t find much, but when we completely break a cryptocurrency or a company’s flagship product, it feels like we’re the best in the world at what we do.

← back to all posts blog • 2018-12-26
currently reading:
Public Audits
12-26 blog
📖 my book
Real-World Cryptography is available from Manning Publications.
A practical guide to applied cryptography for developers and security professionals.
🎙️ my podcast
Two And A Half Coins on Spotify.
Discussing cryptocurrencies, databases, banking, and distributed systems.
📺 my youtube
Cryptography videos on YouTube.
Video explanations of cryptographic concepts and security topics.