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

Intel® Secure Key

The processor supports Intel® Secure Key (formerly known as Digital Random Number Generator or DRNG), a software visible random number generation mechanism supported by a high-quality entropy source. This capability is available to programmers through the RDRAND and RDSEED instructions. The resultant random number generation capability is designed to comply with existing industry standards in this regard (ANSI X9.82 and NIST SP 800-90).

Some possible usages of the RDRAND and RDSEED instructions include cryptographic key generation as used in a variety of applications, including communication, digital signatures, secure storage, etc.

RDRAND and RDSEED instructions specifications and functional descriptions are included in the Intel® 64 Architectures Software Developer’s Manual, Volume 2. Available at:

http://www.intel.com/products/processor/manuals