---
title: "DeepMind's AlphaProof Code verifies Signal's protocol code"
date: 2026-11-10
updated: 2026-11-10T00:00:00Z
url: https://arun477.github.io/feed/2026-11-10/
author: Arun Arumugam
---

# DeepMind's AlphaProof Code verifies Signal's protocol code

Google DeepMind's agents formally verify the real implementation of the Signal protocol, a first for a widely deployed cryptographic protocol.


- [DeepMind's AlphaProof Code formally verifies Signal's protocol implementation](https://deepmind.google/blog/introducing-alphaproof-code/) (Google DeepMind, news, Agents, 13:45 UTC): Gemini-powered agents proved key security properties of Signal's compiled protocol code in four weeks, writing 6M+ lines of Lean with humans reviewing about 1%. A first for a widely deployed protocol's implementation; artifacts are open-sourced.