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:
Feb. 20, 2018
Filed:
Mar. 23, 2012
Vesa-veikko Luukkala, Espoo, FI;
Sampo Sovio, Riihimäki, FI;
Harald Kaaja, Järvenpää, FI;
Sergey Boldyrev, Söderkulla, FI;
Ian Oliver, Söderkulla, FI;
Vesa-Veikko Luukkala, Espoo, FI;
Sampo Sovio, Riihimäki, FI;
Harald Kaaja, Järvenpää, FI;
Sergey Boldyrev, Söderkulla, FI;
Ian Oliver, Söderkulla, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
A system for cryptographically authenticated communication, wherein an activation signal is sent from a communications device to a memory device (). The memory device derives a random challenge from at least one physical property of the activation signal and sends it back to the communications device (). A signature is computed using the received random challenge () and sent, together with a certificate, to the memory device ().