Intel Corporation
MEMORY BUS INTEGRITY AND DATA ENCRYPTION (IDE)

Abstract:

A memory subsystem includes link encryption for the system memory data bus. The memory controller can provide encryption for data at rest and link protection. The memory controller can optionally provide link encryption. Thus, the system can provide link protection for the data in transit. The memory module can include a link decryption engine that can decrypt link encryption if it is used, and performs a link integrity check with a link integrity tag associated with the link protection. The memory devices can then store the encrypted protected data and ECC data from the link decryption engine after link protection verification.