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Title:
CONTENT PROTECTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO2005024820
Kind Code:
A8
Abstract:
The present invention relates to a content protection method and system as well as to a reproduction method and device providing copy protection of electronic content. In order to provide protection against illicit copying by consumers as well as by authoring and formatting facilities content-dependent encryption of the content is proposed. In an encryption step the content (C0) is encrypted using an application key (AK) and/or a disc key (DK). Further, a content-dependent content mark (AK', H, MAC) is generated using said content (C0), which content mark is to be evaluated during decryption of said encrypted content (C2).

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Inventors:
STARING ANTONIUS A M (NL)
TALSTRA JOHAN C (NL)
SKORIC BORIS (NL)
MAES MAURICE J J J-B (NL)
Application Number:
PCT/IB2004/051585
Publication Date:
May 06, 2005
Filing Date:
August 27, 2004
Export Citation:
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Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
STARING ANTONIUS A M (NL)
TALSTRA JOHAN C (NL)
SKORIC BORIS (NL)
MAES MAURICE J J J-B (NL)
International Classes:
G06F21/10; G11B20/00; (IPC1-7): G11B20/00
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