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:
Aug. 06, 2013
Filed:
Oct. 06, 2008
Inhyok Cha, Yardley, PA (US);
Chinmayee V. Rathi, Cupertino, CA (US);
Yogendra C. Shah, Exton, PA (US);
Louis J. Guccione, East Chester, NY (US);
Andreas U. Schmidt, Frankfurt am Main, DE;
Nicolai Kuntze, Darmstadt, DE;
Inhyok Cha, Yardley, PA (US);
Chinmayee V. Rathi, Cupertino, CA (US);
Yogendra C. Shah, Exton, PA (US);
Louis J. Guccione, East Chester, NY (US);
Andreas U. Schmidt, Frankfurt am Main, DE;
Nicolai Kuntze, Darmstadt, DE;
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
The present invention is related to a wireless communication system. 3G UMTS mobile phone systems rely on a protected smart card called the UMTS integrated circuit card (UICC) that provides UMTS subscriber identity module (USIM) applications as a basis or root of various security measures protecting the communication path between the 3G mobile terminal and the UMTS wireless network (or UTRAN). Disclosed is a method by which the UICC exchanges information with a terminal, such as an Internal Key Center (IKC) and a Bootstrapping Server Function (BSF) enables a procedure where multiple local keys specific to applications and Network Application Functions (NAFs) (Ks_local) are used for authentication and to encrypt and decrypt messages.