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. 24, 2010
Filed:
Mar. 07, 2006
Ian Mclean, Woking, GB;
Stephen Mark Keating, Reading, GB;
Ian McLean, Woking, GB;
Stephen Mark Keating, Reading, GB;
Sony United Kingdom Limited, Weybridge, GB;
Abstract
A hardware decryption processor operates, when power is applied to a programmable logic device, to read an encrypted configuration program, to decrypt the encrypted configuration program using a first secret configuration key stored in a register, and to configure a programmable array of logic elements with the configuration program. The programmable array when configured with the configuration program operates to read the encrypted configuration program from a non-volatile store, to decrypt the configuration program using the first secret configuration key, which was provided with the configuration program, to generate a second secret key, to adapt the configuration program by inserting the second secret key into the configuration program, to re-encrypt the adapted configuration program using the first secret configuration key, and to replace the configuration program with the adapted and encrypted configuration program in the non-volatile store.