WO2002101490A3 - Cryptographic trust zones in digital rights management - Google Patents

Cryptographic trust zones in digital rights management Download PDF

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Publication number
WO2002101490A3
WO2002101490A3 PCT/US2002/017610 US0217610W WO02101490A3 WO 2002101490 A3 WO2002101490 A3 WO 2002101490A3 US 0217610 W US0217610 W US 0217610W WO 02101490 A3 WO02101490 A3 WO 02101490A3
Authority
WO
WIPO (PCT)
Prior art keywords
rights management
digital rights
trust zones
cryptographic trust
zones
Prior art date
Application number
PCT/US2002/017610
Other languages
French (fr)
Other versions
WO2002101490A2 (en
Inventor
Guillermo Lao
Xin Wang
Thanh Ta
Joseph Z Fung
Original Assignee
Contentguard Holdings Inc
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 Contentguard Holdings Inc filed Critical Contentguard Holdings Inc
Priority to JP2003504187A priority Critical patent/JP2004530222A/en
Priority to AU2002305814A priority patent/AU2002305814B2/en
Priority to KR10-2003-7010026A priority patent/KR20030096250A/en
Priority to BR0210930-1A priority patent/BR0210930A/en
Priority to EP02734667A priority patent/EP1340134A4/en
Priority to CA002432189A priority patent/CA2432189A1/en
Publication of WO2002101490A2 publication Critical patent/WO2002101490A2/en
Publication of WO2002101490A3 publication Critical patent/WO2002101490A3/en

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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
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

Cryptographic keys are used to protect content (42) in a digital rights management system. Activation servers (20) cooperate with license servers (50) to issue licences (52) to user devices (60) associated with differing trust zones.
PCT/US2002/017610 2001-06-07 2002-06-05 Cryptographic trust zones in digital rights management WO2002101490A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2003504187A JP2004530222A (en) 2001-06-07 2002-06-05 Method and apparatus for supporting multiple zones of trust in a digital rights management system
AU2002305814A AU2002305814B2 (en) 2001-06-07 2002-06-05 Cryptographic trust zones in digital rights management
KR10-2003-7010026A KR20030096250A (en) 2001-06-07 2002-06-05 Method and apparatus for supporting multiple trust zones in a digital rights management system
BR0210930-1A BR0210930A (en) 2001-06-07 2002-06-05 Method and apparatus for supporting multiple trust zones in a digital rights management system
EP02734667A EP1340134A4 (en) 2001-06-07 2002-06-05 Method and apparatus for supporting multiple trust zones in a digital rights management system
CA002432189A CA2432189A1 (en) 2001-06-07 2002-06-05 Cryptographic trust zones in digital rigths management

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29611501P 2001-06-07 2001-06-07
US60/296,115 2001-06-07

Publications (2)

Publication Number Publication Date
WO2002101490A2 WO2002101490A2 (en) 2002-12-19
WO2002101490A3 true WO2002101490A3 (en) 2003-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/017610 WO2002101490A2 (en) 2001-06-07 2002-06-05 Cryptographic trust zones in digital rights management

Country Status (9)

Country Link
US (1) US7853531B2 (en)
EP (1) EP1340134A4 (en)
JP (1) JP2004530222A (en)
KR (1) KR20030096250A (en)
CN (1) CN1539117A (en)
AU (1) AU2002305814B2 (en)
BR (1) BR0210930A (en)
CA (1) CA2432189A1 (en)
WO (1) WO2002101490A2 (en)

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