Research encryption approaches suitable for short-lived, trade-scoped chat between two parties who don't have a pre-existing relationship — full Signal-protocol-style ratcheting versus simpler asymmetric key exchange.
Deliverable: A written comparison with a recommendation appropriate for the actual threat model (protecting message content from the backend/database, not defending against nation-state adversaries).
Research encryption approaches suitable for short-lived, trade-scoped chat between two parties who don't have a pre-existing relationship — full Signal-protocol-style ratcheting versus simpler asymmetric key exchange.
Deliverable: A written comparison with a recommendation appropriate for the actual threat model (protecting message content from the backend/database, not defending against nation-state adversaries).