The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2017
Filed:
Sep. 24, 2014
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
David A. Kaplan, Austin, TX (US);
Thomas Roy Woller, Austin, TX (US);
Ronald Perez, Piedmont, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A processor employs a hardware encryption module in the processor's memory access path to cryptographically isolate secure information. In some embodiments, the encryption module is located at a memory controller (e.g. northbridge) of the processor, and each memory access provided to the memory controller indicates whether the access is a secure memory access, indicating the data associated with the memory access is designated for cryptographic protection, or a non-secure memory access. For secure memory accesses, the encryption module performs encryption (for write accesses) or decryption (for read accesses) of the data associated with the memory access.