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:
Feb. 27, 2018
Filed:
Sep. 23, 2015
Intel Corporation, Santa Clara, CA (US);
Siddhartha Chhabra, Portland, OR (US);
Francis X. Mckeen, Portland, OR (US);
Carlos V. Rozas, Portland, OR (US);
Saeedeh Komijani, Mountain View, CA (US);
Tamara S. Lehman, Durham, NC (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Memory security technologies are described. An example processing system includes a processor core and a memory controller coupled to the processor core and a memory. The processor core can receive a content read instruction from an application. The processor core can identify a cache line (CL) from a plurality of CLs of a cryptographic cache block (CCB) requested in the content read instruction. The processor core can load, from a cryptographic tree, tree nodes with security metadata. The processor core can retrieve, from the memory, the CCB. The processor core can generate a second MAC from the CCB. The processor core can compare the first MAC with the second MAC. The processor core can decrypt the CCB using security metadata when the first MAC matches the second MAC. The processor core can send at least the identified CL from the decrypted CCB to the application.