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:
Jun. 27, 2023
Filed:
Sep. 14, 2020
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventors:
Assignee:
INTEL CORPORATION, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/00 (2006.01); G06F 21/79 (2013.01); G06F 21/75 (2013.01); G06F 21/76 (2013.01); G06F 12/14 (2006.01); G06F 21/62 (2013.01);
U.S. Cl.
CPC ...
G06F 21/79 (2013.01); G06F 12/14 (2013.01); G06F 21/75 (2013.01); G06F 21/76 (2013.01); G06F 21/6218 (2013.01);
Abstract
System and techniques for multi-tenant cryptographic memory isolation are described herein. A multiple key total memory encryption (MKTME) circuitry may receive a read request for encrypted memory. Here, the read request may include an encrypted memory address that itself includes a sequence of keyid bits and physical address bits. The MKTME circuitry may retrieve a keyid-nonce from a key table using the keyid bits. The MKTME circuitry may construct a tweak from the keyid-nonce, the keyid bits, and the physical address bits. The MKTME circuitry may then decrypt data specified by the read request using the tweak and a common key.