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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    GPS tracking device in real life!

    blog

    I’ve only seen that in movies. Not that it couldn’t exist, it’s just “fun” to see that happen in real life as well.

    The story is here. It’s about someone’s car which got “bugged”. It was discovered while X was at the Circumvention Tech Festival in Valencia, Spain.

    bug

    more pictures there

    suggested reads:
    → Invisibility glasses • blog
    → Dual EC or the NSA's Backdoor: Explanations • blog
    → A Brief History of NSA Backdoors. • blog
    ← back to all posts blog • 2015-03-06

    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.