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. 04, 2014
Filed:
Sep. 27, 2005
Geert Jan Schrijen, Eindhoven, NL;
Thomas Andreas Maria Kevenaar, Eindhoven, NL;
Geert Jan Schrijen, Eindhoven, NL;
Thomas Andreas Maria Kevenaar, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
There is provided an authentication method for a system () comprising several devices (). The method involves: a) providing each device () with an identity value (pi: i=1, . . . , n) and a polynomial (P) for generating a polynomial key; (b) including a verifier device (p) and a prover device (P)amongst said devices (); (c) arranging for the prover device (p) to notify its existence to the verifier device (P); (d) arranging for the verifier device (p) to challenge the prover device (p) to encrypt a nonce using the prover (P)device's polynomial (P) key and communicate the encrypted nonce as a response to the verifier device (p); (e) arranging for the verifier device (p) to receive the encrypted nonce as a further challenge from the prover device (p) and: (i ) encrypt the challenge using the polynomial keys generated from a set of stored device identities; or (ii) decrypt the challenge received using the set of polynomial keys; until said verifier device (p) identifies an authentication match.