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:
Sep. 07, 2010
Filed:
May. 20, 2003
Charles E. Perkins, Saratoga, CA (US);
Rajeev Koodli, Sunnyvale, CA (US);
Vijay Devarapalli, Santa Clara, CA (US);
Hannu Flinck, Helsinki, FI;
Charles E. Perkins, Saratoga, CA (US);
Rajeev Koodli, Sunnyvale, CA (US);
Vijay Devarapalli, Santa Clara, CA (US);
Hannu Flinck, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
The present invention provides location privacy against third parties while allowing route-optimized communication between the correspondent node and the mobile node. The mobile node's home address is hidden from an external observer thereby thwarting traffic analysis based attacks where a Home Address is correlated with a Care of Address of a mobile node (MN). A 'privacy label' is used in place of a home address associated with the mobile node. The privacy label is supplied by the mobile node to the correspondent node in a way that that allows the privacy label to be bound to the home address, but does not allow the home address to be visible during the exchange. The privacy label may be also used to help prevent against replay attacks.