Aegon: Self-Auditable Key Transparency

This talk presents Aegon, a self-auditable key transparency scheme designed for global-scale encrypted messaging. It builds on Iron Dict's polynomial commitment approach to remove per-epoch global work, shards the dictionary for horizontal scaling, and uses proof caching to bound storage. The result is constant-size audit proofs that a lightweight client can verify itself over an entire history, rather than relying on external auditors.