Locky is a Key Management System. We store and retrieve cryptographic keys in the cloud (and on-prem!).
This simplified example illustrates using Locky to protect a database of social security numbers against a harvest-now decrypt-later attack.
let key = locky.get_key("database_key");
let encrypted_social_security_number =
Database::get_ssn(end_user_account);
// Insert your favorite symmetric algorithm!
let ssn = Aes256Gcm::decrypt(
key,
encrypted_social_security_number
);