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Charles Sutton

@RandomlyWalking

Research scientist @GoogleAI / Previously academic @InfAtEd / Deep learning to help people write code. / @chas@sigmoid.social / ❤️s:🐱🐶☕️🍕
Mountain View, CA homepages.inf.ed.ac.uk/csutton/ Joined February 2009
1.4K Following 17K Followers 4.2K Posts

Latest posts 5

Charles Sutton @RandomlyWalking
Delighted to share the the work of my team at
@GoogleDeepMind: formally verifying a real-world implementation of the #Signal cryptographic protocol at the machine-code level. The proof was done using AlphaProof Code, our new AI framework for formal specification and verification.
Sundar Pichai Verified account @sundarpichai 2d
Our teams put Gemini 4 Carbon to work on a major security challenge: mathematically proving the code underlying the Signal protocol.

Using AlphaProof Code, @GoogleDeepMind researchers guided agents to verify the protocol down to compiled device code, closing the gap where real bugs hide. The result:

- Gemini 4 Carbon generated over 6M lines of machine-checked Lean proofs
- years of expert manual verification compressed to just weeks
~1% of the codebase required human review (Lean automatically checked the rest)

This is helping unlock scalable formal verification for building secure software, laying the groundwork to fundamentally shift the advantage to defenders. We’re open sourcing the results for the security community.
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Charles Sutton @RandomlyWalking
Very excited to share this update about our team's work on AI for security!

Joint work with @miltos1 @xennygrimmato_ @dancherp and many others from GDM and Google Project Zero!

To learn more about our agent Big Sleep, check out this blog post: googleprojectzero.blogspot.com/2024/10/from-n…
projectzero.google From Naptime to Big Sleep: Using Large Language Models To Catch Vulnerabilities In Real-World Code Posted by the Big Sleep team Introduction In our previous post, Project Naptime: Evaluating Offe...
Sundar Pichai Verified account @sundarpichai Jul 15, 2025
New from our security teams: Our AI agent Big Sleep helped us detect and foil an imminent exploit. We believe this is a first for an AI agent - definitely not the last - giving cybersecurity defenders new tools to stop threats before they’re widespread.
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