Title:
保存されたコンテンツを保護するためのモバイルネットワーク認証
Document Type and Number:
Japanese Patent JP2005536938
Kind Code:
A
Abstract:
The present invention relates to a method of protecting content stored on a storage medium ( 7 ) against unauthorized access, said storage medium ( 7 ) being accessible by a drive (D) of a portable device ( 2 ) which is connectable to a network ( 1 ). In order to provide a high level of protection against unauthorized access it is proposed to use the authentication procedure of the network ( 1 ) to generate a cryptographic key (ck) for encryption and decryption of content stored on said storage medium ( 7 ). In particular, the present invention is used in a mobile phone network where the authentication key (ak) is stored on a SIM card ( 8 ) used in a mobile phone ( 2 ).
Inventors:
Kelly Declampy
Application Number:
JP2004530436A
Publication Date:
December 02, 2005
Filing Date:
August 04, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G06F21/10; H04L9/08; H04L9/10; H04L29/06; H04W12/06; H04W88/02; (IPC1-7): H04L9/08; G06F12/14; H04L9/10
Domestic Patent References:
| JPH03198182A | 1991-08-29 | |||
| JP2002368730A | 2002-12-20 | |||
| JP2003162691A | 2003-06-06 | |||
| JP2004040717A | 2004-02-05 | |||
| JP2004533174A | 2004-10-28 | |||
| JP2004517553A | 2004-06-10 | |||
| JP2000115732A | 2000-04-21 | |||
| JP2002123273A | 2002-04-26 | |||
| JP2002100116A | 2002-04-05 |
Foreign References:
| US20020091931A1 | 2002-07-11 | |||
| EP0644474A1 | 1995-03-22 |
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen