Envelop Encryption
To secure storing sensitive information, a common approach is to use envelope encryption: A master key (usually managed by a secure KMS) A row-level key (used to encrypt individual records) Each row of sensitive data (e.g., credit card information) is encrypted using a unique row key, the row key itself is encrypted using the master key and stored alongside the data in the database. This setup allows secure key rotation, better isolation, and compliance with security standards. ...