Retrofitting Privacy: Adding Midnight to an Existing dApp Step by Step

Retrofitting Privacy: Adding Midnight to an Existing dApp Step by Step Last year I inherited a voting dApp that had been running in production for eight months. It worked fine — users could submit votes, results were tallied on-chain, everything was auditable. The problem was that everything was auditable. Voter addresses, their choices, the exact timestamp of each vote — all of it sitting in plain ledger state for anyone to query. When the client asked me to add voter privacy before their next