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:
Apr. 17, 2012
Filed:
Mar. 17, 2005
Jukka-pekka Honkanen, Tampere, FI;
Jouni Mikkonen, Tampere, FI;
Henry Haverinen, Jyväskylä, FI;
Nokia Corporation, Espoo, FI;
Abstract
Method for storing data in the memory () of an electronic device (), wherein the data to be stored is encrypted with an encryption key (Ks). The electronic device () is provided with an identification card () equipped with a cryptographic algorithm and an individual identifier (ID). In the electronic device (), at least one seed value (RAND, RAND, RAND) is generated, and the at least one seed value is transmitted to the identification card (). The cryptographic algorithm is performed on the identification card (), with the seed value (RAND, RAND, RAND) being used as the input, wherein at least one derived value (Kc, Kc, Kc) is produced in the algorithm. The at least one derived value (Kc, Kc, Kc) is transmitted to the electronic device (), wherein the at least one derived value (Kc, Kc, Kc) is used in the formation of the encryption key (Ks). The invention also relates to an electronic device (), module, and computer software product.