cryptologie.net

cryptography, security, and random thoughts

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

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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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    What is GCM (Galois Counter Mode)?

    blog

    In this video I’m explaining what is that Galois Counter Mode that provides Authenticated Encryption with Associated Data (AEAD). You must have heard it combined with AES, and maybe used in TLS, … This is just a small explanation, you can get more on the NIST specs.

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    suggested reads:
    → One GCM implementation pitfall • blog
    → Breaking https' AES-GCM (or a part of it) • blog
    → The Noise Protocol Framework • blog
    ← back to all posts blog • 2015-07-03

    recent posts

    The API is English, the deterministic-agentic border is shifting
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    What's next after soulbound NFTs? Self-willed NFTs via zkML
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    How to Make it in a Security Team
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    Getting Into The Zone
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    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.