WO2007063491A3 - Protection of digital content - Google Patents

Protection of digital content Download PDF

Info

Publication number
WO2007063491A3
WO2007063491A3 PCT/IB2006/054481 IB2006054481W WO2007063491A3 WO 2007063491 A3 WO2007063491 A3 WO 2007063491A3 IB 2006054481 W IB2006054481 W IB 2006054481W WO 2007063491 A3 WO2007063491 A3 WO 2007063491A3
Authority
WO
WIPO (PCT)
Prior art keywords
digital content
processing device
content
protected
authentication
Prior art date
Application number
PCT/IB2006/054481
Other languages
French (fr)
Other versions
WO2007063491A2 (en
Inventor
Boris Skoric
Johan C Talstra
Original Assignee
Koninkl Philips Electronics Nv
Boris Skoric
Johan C Talstra
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Boris Skoric, Johan C Talstra filed Critical Koninkl Philips Electronics Nv
Publication of WO2007063491A2 publication Critical patent/WO2007063491A2/en
Publication of WO2007063491A3 publication Critical patent/WO2007063491A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/57—Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/107—License processing; Key processing
    • G06F21/1077—Recurrent authorisation

Abstract

A method of processing digital content on a content processing device includes receiving digital content that has been protected through encoding and/or scrambling using a predetermined algorithm. Additionally, an obfuscated computer program is received that is associated with the protected digital content for execution by the processing device. The program includes authentication instructions for performing authentication of the processing device and conversion instructions for performing at least a part of decoding and/or descrambling of the protected digital content in dependence on a response of the processing device to an authentication challenge. According to the method, a multi-round zero-knowledge algorithm is used for authenticating the processing device. Execution of respective rounds of the zero-knowledge algorithm is time-sequentially intermixed with content conversion of sequential parts of the digital content.
PCT/IB2006/054481 2005-12-02 2006-11-28 Protection of digital content WO2007063491A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05111604.4 2005-12-02
EP05111604 2005-12-02

Publications (2)

Publication Number Publication Date
WO2007063491A2 WO2007063491A2 (en) 2007-06-07
WO2007063491A3 true WO2007063491A3 (en) 2007-10-11

Family

ID=38080899

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/054481 WO2007063491A2 (en) 2005-12-02 2006-11-28 Protection of digital content

Country Status (1)

Country Link
WO (1) WO2007063491A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8280056B2 (en) 2009-01-29 2012-10-02 Fortress Applications Ltd. System and methods for encryption with authentication integrity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039504A1 (en) * 1998-01-29 1999-08-05 Intel Corporation Improved conditional access and content security method
WO2002095546A2 (en) * 2001-05-24 2002-11-28 Cloakware Corporation Analysis resistant and tamper resistant software encoding
WO2005008385A2 (en) * 2003-07-07 2005-01-27 Cryptography Research, Inc. Reprogrammable security for controlling piracy and enabling interactive content

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039504A1 (en) * 1998-01-29 1999-08-05 Intel Corporation Improved conditional access and content security method
WO2002095546A2 (en) * 2001-05-24 2002-11-28 Cloakware Corporation Analysis resistant and tamper resistant software encoding
WO2005008385A2 (en) * 2003-07-07 2005-01-27 Cryptography Research, Inc. Reprogrammable security for controlling piracy and enabling interactive content

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MENEZES A J ET AL: "Handbook of Applied cryptography, FEIGE-FIAT-SHAMIR IDENTIFICATION PROTOCOL", HANDBOOK OF APPLIED CRYPTOGRAPHY, CRC PRESS SERIES ON DISCRETE MATHEMATICES AND ITS APPLICATIONS, BOCA RATON, FL, CRC PRESS, US, 1997, pages 410 - 412,520, XP002363234, ISBN: 0-8493-8523-7 *

Also Published As

Publication number Publication date
WO2007063491A2 (en) 2007-06-07

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