Search International and National Patent Collections

1. (WO2017151309) A FLEXIBLE FEATURE ENABLING INTEGRATED CIRCUIT AND METHOD TO OPERATE THE INTEGRATED CIRCUIT

Pub. No.:    WO/2017/151309    International Application No.:    PCT/US2017/017833
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Feb 15 00:59:59 CET 2017
IPC: G06F 21/79
G06F 21/71
H04L 9/32
H04L 9/08
Applicants: ALTERA CORPORATION
Inventors: ITO, Ken, A.
Title: A FLEXIBLE FEATURE ENABLING INTEGRATED CIRCUIT AND METHOD TO OPERATE THE INTEGRATED CIRCUIT
Abstract:
A method for enabling a circuit feature on an integrated circuit device having inactive circuit features includes a step to receive an encrypted message and a signed digital signature from a server using an input/output (I/O) terminal within the integrated circuit device. The method also includes a step to decrypt the encrypted message using a public key to obtain a decrypted message using a data decryption block within the integrated circuit device. Furthermore, the method also includes a step to enable one of the inactive circuit features on the integrated circuit device that corresponds to the decrypted message after decrypting the encrypted message. The method may be performed by a flexible feature enabling integrated circuit.