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:
Jan. 17, 2023
Filed:
Sep. 03, 2020
Synopsys, Inc., Mountain View, CA (US);
Alfred Koelbl, Hillsboro, OR (US);
Naiyong Jin, Marlborough, MA (US);
Sudipta Kundu, Hillsboro, OR (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A security verification system performs security verification of a circuit design. The security verification system simplifies formal security verification of the circuit design by replacing circuit blocks of the circuit with black box circuit blocks. The security verification system instruments the circuit design so that black-boxing can be performed for security verification without changing the security decision over the data paths. The security verification system uses dependence information of the inputs and outputs of the black box to connect inputs of the circuit block with outputs of the circuit block. The black-box circuit block keeps the logic inside the cone of influence of clocks and resets. The system performs security verification of the circuit design by proving a non-interference property of the instrumented circuit design.