Lockra Protocol

LOCKRA

Lockra Protocol is the first timelock encryption protocol on FOBO (Robinhood Chain). It lets anyone seal a message that cannot be opened until a chosen future date, not even by the author or the Lockra team. Messages are encrypted with identity-based encryption on BLS12-381 to a future round of the drand network (League of Entropy). The decryption key is a threshold BLS signature that only exists once that round is published, so opening a capsule early is mathematically impossible. Capsules can be wallet-signed (EIP-191) to prove who sealed them, and any modification makes them fail their integrity check. Everything runs client-side in the browser, with no servers storing user data. Use cases include verifiable predictions, sealed roadmaps, giveaway numbers, airdrop winners and timed reveals. Sealed files and an onchain capsule registry on Robinhood Chain are on the roadmap.