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:
Jul. 25, 2023
Filed:
Mar. 26, 2021
Intel Corporation, Santa Clara, CA (US);
Andrew James Weiler, Hillsboro, OR (US);
David M. Durham, Beaverton, OR (US);
Michael D. LeMay, Hillsboro, OR (US);
Sergej Deutsch, Hillsboro, OR (US);
Michael E. Kounavis, Portland, OR (US);
Salmin Sultana, Hillsboro, OR (US);
Karanvir S. Grewal, Hillsboro, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
In one embodiment, an encoded pointer is constructed from a stack pointer that includes offset. The encoded pointer includes the offset value and ciphertext that is based on encrypting a portion of a decorated pointer that includes a maximum offset value. Stack data is encrypted based on the encoded pointer, and the encoded pointer is stored in a stack pointer register of a processor. To access memory, a decoded pointer is constructed based on decrypting the ciphertext of the encoded pointer and the offset value. Encrypted stack data is accessed based on the decoded pointer, and the encrypted stack is decrypted based on the encoded pointer.