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:
May. 04, 2010
Filed:
Nov. 29, 2006
Brian Christopher Van Essen, Cary, NC (US);
Jeffrey Wayne Kidd, Hillsborough, NC (US);
Christopher Maverick Petersen, Cary, NC (US);
Herman H. Schmit, Pittsburgh, PA (US);
Brian Christopher Van Essen, Cary, NC (US);
Jeffrey Wayne Kidd, Hillsborough, NC (US);
Christopher Maverick Petersen, Cary, NC (US);
Herman H. Schmit, Pittsburgh, PA (US);
Carnegie Mellon University, Pittsburgh, PA (US);
Abstract
The present invention relates to a secure method of distributing configuration data for a programmable logic device (PLD). The configuration data is encrypted to generate encrypted configuration data. A decryption key is encrypted using a silicon key. The encrypted configuration data and the encrypted decryption key are transferred to a PLD. Within the PLD, the encrypted decryption key is decrypted using the silicon key. Then, also within the PLD, the encrypted configuration data is decrypted using the decryption key to recover the configuration data. The PLD is then configured using the configuration data. The silicon key may be communicated to the PLD by tying predetermined input pins to an active high voltage level or signal ground, to form a binary code.