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:
Apr. 30, 2024
Filed:
Sep. 21, 2021
Applicant:
Drexel University, Philadelphia, PA (US);
Inventors:
Kyle Joseph Juretus, Quakertown, PA (US);
Ioannis Savidis, Wallingford, PA (US);
Assignee:
Drexel University, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/55 (2013.01); G06F 21/76 (2013.01);
U.S. Cl.
CPC ...
G06F 21/556 (2013.01); G06F 21/76 (2013.01); G06F 2221/034 (2013.01);
Abstract
A proposed technique allows for the security of the logic cone through logic locking and secures the outputs of the circuit from the scan chain without modifications to the structure of the scan chain. Since the oracle responses in test mode do not correspond to the functional key, satisfiability (SAT) attacks are not able to leverage the responses from the scan chain. In addition, a charge accumulation circuit is developed to prevent and detect any attempt to enter the partitioned test mode while the correct circuit responses are still stored within the registers.