What is defined by the OPAL standard?

The OPAL storage specification outlines the methods to safeguard user data confidentiality and how storage devices from various manufacturers can collaborate.

OPAL (Opal Storage Specification) ensures confidentiality for stored user data by utilizing a Trusted Computing Group (TCG) standard called Self-Encrypting Drives (SEDs). OPAL requires that storage devices conforming to its specification must be equipped with a hardware-based encryption engine. When data is written to an OPAL-compliant SED, it is automatically encrypted by the hardware encryption engine using a unique key that is generated by the drive itself. This key is then encrypted using a master key that is created by the system administrator and stored securely on the drive. When the data is retrieved from the drive, it is automatically decrypted using the appropriate key. This approach ensures that the data is protected in case the drive is lost or stolen. Additionally, OPAL also defines a set of security protocols for managing the encryption keys, including key creation, deletion, and backup.

However, OPAL does not provide information or procedures for licenses, accounts, and libraries, or degaussers.