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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← back to all posts blog • 2025-10-13
currently reading:
Getting Into The Zone
10-13 blog
recent posts:
Intuitions Behind the Range Proofs of Bulletproof: Part 2
10-01 blog
Halo2's Elegant Transcript As Proof
09-28 blog
High-level intuitions for the Bulletproofs/IPA protocol
09-26 blog
Intuitions Behind the Range Proofs of Bulletproof: Part 1
09-19 blog
New cryptologie.net
07-20 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.