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. 16, 2018
Filed:
Dec. 06, 2011
Frank Fransen, Zuidhorn, NL;
Frank Fransen, Zuidhorn, NL;
Koninklijke KPN N.V., The Hague, NL;
Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNON, The Hague, NL;
Abstract
The invention relates to a method and system for key distribution and encryption/decryption. An encryption key (K) is derived in a terminal. The encryption key is applied by the terminal for encrypting at least a part of data included in an application message for an application server transmitted over a network. The terminal and the network both have access to a first key (K). The terminal and the server both have access to a second key (K). The encryption key is derived at the terminal using the first key and the second key. The first key or the derivative thereof is received at the server. The encryption key for decrypting the application message encrypted by the terminal is derived in the server using the shared second key and the received first key of the derivative thereof.