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:
Oct. 30, 2012
Filed:
May. 22, 2008
Michael Baentsch, Gross, CH;
Peter Buhler, Horgen, CH;
Thomas Eirich, Waedenswil, CH;
Frank Hoering, Zurich, CH;
Thorsten Kramp, Kilchberg, CH;
Marcus Oestreicher, Zurich, CH;
Michael Osborne, Au, CH;
Thomas D. Weigold, Thalwil, CH;
Michael Baentsch, Gross, CH;
Peter Buhler, Horgen, CH;
Thomas Eirich, Waedenswil, CH;
Frank Hoering, Zurich, CH;
Thorsten Kramp, Kilchberg, CH;
Marcus Oestreicher, Zurich, CH;
Michael Osborne, Au, CH;
Thomas D. Weigold, Thalwil, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for providing a user device with a set of access codes comprises, in the user device, storing an encryption key a an identification code, and sending a message containing the identification code to a server via a communications network. In the server, an encryption key is stored corresponding to the key stored in the user device, allocating the set of access codes on receipt of the identification code from the user device. A look up function is performed based on the identification code received in the message to retrieve the key from storage. The set of access codes is encrypted using the retrieved key to produce an encrypted set. A message containing the encrypted set is sent to the user device via the network. In the user device, the encrypted set received from the server is decrypted using the key in storage, and storing the decrypted set of access codes for use by a user of the user device.