cryptologie.net

cryptography, security, and random thoughts

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Hey! I'm David, cofounder of zkSecurity and author of Real-World Cryptography.

More about me

I'm also an advisor at Archetype. 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.

“Cryptologie” is the French spelling of “cryptology.”

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    I like whiteboards

    blog

    If you have missed me, I was in different places on the Internet and in real life. Here are three whiteboard sessions on different aspects of zero-knowledge:

    suggested reads:
    → A journey into zero-knowledge proofs • blog
    → ZK HACK: 1st puzzle write up • blog
    → Verifying zero-knowledge proofs on Bitcoin? • blog
    ← back to all posts blog • 2024-10-17

    recent posts

    The API is English, the deterministic-agentic border is shifting
    blog
    Looking for a cryptography audit? Here's where to go
    blog
    What's next after soulbound NFTs? Self-willed NFTs via zkML
    blog
    How to Make it in a Security Team
    blog
    Getting Into The Zone
    blog

    elsewhere

    book Real-World Cryptography Applied cryptography, from Manning. podcast Two And A Half Coins Crypto, banking & distributed systems. youtube Cryptography videos Concepts & security, explained.