Title:
権利ファイル記述の保護方法
Document Type and Number:
Japanese Patent JP4906739
Kind Code:
B2
Abstract:
The invention relates to a method of protecting a file containing a plurality of rights descriptions Di (i=1 . . . N), each right Di defining use by a terminal of at least one resource and/or digital content among a plurality of resources and/or digital contents RCj (j=1 . . . M), each description of a given right Di comprising particularly, an identifier of said right Di, an identifier of each resource and/or content RCj, the use of which is defined by said right Di, conditions for use of said resources and/or said contents by the terminal. This method includes the following steps: on reception of the rights descriptions file Di by a terminal, storing said descriptions in the terminal, and, for each resource and/or content RCj, generating a data structure (Id_RCj, Id_Di), comprising the identifier of said resource and/or said content and the identifier of each right defining a use of said content RCj, transferring each (Id_RCj, Id_Di) structure generated into a secure memory area.
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Inventors:
Mariana, Renault
Application Number:
JP2007554614A
Publication Date:
March 28, 2012
Filing Date:
February 09, 2006
Export Citation:
Assignee:
Viaccess
International Classes:
G06F21/10; G06K17/00; G06K19/073; H04M11/00
Domestic Patent References:
| JP2005032125A | ||||
| JP2005018378A | ||||
| JP2004015257A | ||||
| JP2000347946A | ||||
| JP2004259280A | ||||
| JP2001285417A | ||||
| JP2003187101A |
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori