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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The Noise Protocol Framework

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WhatsApp just announced their integration of the Signal protocol (formerly known as the Axolotl protocol). An interesting aspect of it is the use of a TLS-like protocol called Noise Pipes. A protocol based on the Noise protocol framework, a one-man work led by Trevor Perrin with only a few implementations and a moderately long specificiations available here. I thought it would be interesting to understand how protocols are made from this framework, and to condense it in a 25 minutes video. Here it is.

suggested reads:
→ Readable implementation of the Noise protocol framework • blog
→ Noise+Strobe=Disco • blog
→ On Real World Crypto and Secure Messaging • blog
← back to all posts blog • 2016-04-28
currently reading:
The Noise Protocol Framework
04-28 blog
recent posts:
New cryptologie.net
07-20 blog
Weaponizing AI Assistants: With Their Permission
07-20 blog
What are Schwartz-Zippel circuits? How do they relate to iterative constraint systems?
05-29 blog
Short Note On Montgomery Reduction: Why Operating Modulo b?
05-24 blog
Still confused by Plonk's permutation?
03-13 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.