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:
Sep. 20, 2011
Filed:
Nov. 25, 2009
Jesse H. Jenkins, Iv, Danville, CA (US);
Jesse H. Jenkins, IV, Danville, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
Approaches for secure configuration of a programmable logic integrated circuit (IC). In one approach, a method includes programming configuration memory of the programmable logic IC with a first configuration bitstream. At least a portion of a second configuration bitstream is encrypted using values stored in a portion of the configuration memory as a key. The second configuration bitstream is input to the programmable logic IC, and the encrypted portion of the second configuration bitstream is decrypted using the values stored in the portion of the configuration memory. The configuration memory is then programmed with each decrypted portion of the second bitstream.