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:
Oct. 30, 2018
Filed:
Aug. 24, 2016
Altera Corporation, San Jose, CA (US);
Bruce B. Pedersen, Sunnyvale, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
The invention discloses a method of authenticating data stored in an integrated circuit. The method includes storing randomized data in the integrated circuit such that the randomized data occupies each address space of the memory circuit that is not occupied by the stored data. The method also includes generating a first digital signature using the integrated circuit in response to authenticating a concatenation of the stored data and the first copy of randomized data. The method further includes generating a second digital signature in response to authenticating concatenation of a manufacturer-provided copy of the stored data and the second copy of randomized data using a computer-implemented authentication application and authenticating the data stored in the integrated circuit according to whether the first signature matches the second signature.