DeepMind proves Signal protocol cryptographic guarantees with AlphaProof Code

Google DeepMind researchers used a new agentic AI framework called AlphaProof Code to mathematically verify key cryptographic guarantees of the Signal protocol in a four-week proof-of-concept project. The analysis successfully identified known vulnerabilities when run on older versions of Signal and released its specifications and proofs to aid future verification work. While researchers celebrate the milestone toward scaling software verification, industry experts note questions remain about whether automated formal verification can truly scale at a workable cost. Open article →