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:
Aug. 02, 2022
Filed:
Jun. 11, 2019
At&t Intellectual Property I, L.p., Atlanta, GA (US);
William C. Cottrill, Canton, GA (US);
Sheldon Kent Meredith, Roswell, GA (US);
Peter Hardie, Cumming, GA (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
Aspects of the subject disclosure may include, for example, identifying, during a CPU's execution of a first program, a branching instruction of the first program that redirects execution to a second program. Responsive to the identifying of the branching instruction, a return address of a next instruction of the first program is encrypted. The encrypted return address is transferred to the second program without the CPU retaining a record of the return address. The encrypted return address is received from the second program responsive to its completion of execution. The received encrypted return address is decrypted to obtain the return address enabling a resumption of execution of the first program from the next instruction. Other embodiments are disclosed.