AlphaProof Code lets AI verify Signal’s encryption
What is Introducing AlphaProof Code: a breakthrough in verifying complex software at depth?
AlphaProof Code is an agentic framework that uses multiple LLMs to write formal Lean proofs of software. It was used to mathematically prove the security properties of Signal’s core cryptographic protocol, producing over six million lines of verified code.
Who it is for
Security researchers and developers can adopt the approach to get machine-generated, mathematically-checked guarantees for critical code, cutting down manual proof effort.
The story so far
Early Signal first spotted Introducing AlphaProof Code: a breakthrough in verifying complex software at depth on November 10, 2026. Early Signal files it under Coding, Agents.