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:
Jul. 10, 2012
Filed:
Oct. 11, 2007
Christophe Vincent, Chevaigni, FR;
Olivier Courtay, Rennes, FR;
Christophe Vincent, Chevaigni, FR;
Olivier Courtay, Rennes, FR;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A method and device for device association. A user enters login and password on a first device that searches for reachable devices. The first device asks the reachable devices if they know the login, preferably by sending a salted hash of the login. The devices that know the login respond positively and the first device lists the responding devices. The first device then successively performs Secure Remote Authentication (SRP) with each device on the list until an authentication succeeds or there are no further devices on the list. The SRP authentication makes sure that the first device knows the login and that the other device knows a password verifier without transmitting any knowledge that allows recuperation of this info by an eavesdropper. The authenticated devices then establish a secure channel over which a community secret key is transferred, and the first device also calculates and stores the password verifier.