Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 05/09/2025 Public
Document Table of Contents

KeyLocker Technology

A method to make long-term keys short-lived without exposing them. This protects against vulnerabilities when keys can be exploited and used to attack encrypted data such as disk drives.

The Software can wrap its own key via the ENCODEKEY instruction and receive a handle. The handle is used with the AES*KL instructions to encrypt and decrypt operations. Once a handle is obtained, the software can delete the original key from memory.

An instruction (LOADIWKEY) allows the OS to load a random wrapping value (IWKey). The IWKey can be backed up and restored by the OS in a secure manner.

Note:KeyLocker Technology may not be available on all SKUs.