AU3206397A - Method and apparatus for two-level copy protection - Google Patents

Method and apparatus for two-level copy protection

Info

Publication number
AU3206397A
AU3206397A AU32063/97A AU3206397A AU3206397A AU 3206397 A AU3206397 A AU 3206397A AU 32063/97 A AU32063/97 A AU 32063/97A AU 3206397 A AU3206397 A AU 3206397A AU 3206397 A AU3206397 A AU 3206397A
Authority
AU
Australia
Prior art keywords
copy protection
level copy
level
protection
copy
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU32063/97A
Inventor
Paul J. Wehrenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Apple Computer 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 Apple Computer Inc filed Critical Apple Computer Inc
Publication of AU3206397A publication Critical patent/AU3206397A/en
Abandoned legal-status Critical Current

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
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00485—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00543—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein external data is encrypted, e.g. for secure communication with an external device or for encrypting content on a separate record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
AU32063/97A 1996-05-23 1997-05-15 Method and apparatus for two-level copy protection Abandoned AU3206397A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65286296A 1996-05-23 1996-05-23
US08652862 1996-05-23
PCT/US1997/008264 WO1997044736A1 (en) 1996-05-23 1997-05-15 Method and apparatus for two-level copy protection

Publications (1)

Publication Number Publication Date
AU3206397A true AU3206397A (en) 1997-12-09

Family

ID=24618492

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32063/97A Abandoned AU3206397A (en) 1996-05-23 1997-05-15 Method and apparatus for two-level copy protection

Country Status (2)

Country Link
AU (1) AU3206397A (en)
WO (1) WO1997044736A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5745569A (en) 1996-01-17 1998-04-28 The Dice Company Method for stega-cipher protection of computer code
US6205249B1 (en) 1998-04-02 2001-03-20 Scott A. Moskowitz Multiple transform utilization and applications for secure digital watermarking
US7664263B2 (en) 1998-03-24 2010-02-16 Moskowitz Scott A Method for combining transfer functions with predetermined key creation
US6175925B1 (en) * 1996-06-13 2001-01-16 Intel Corporation Tamper resistant player for scrambled contents
US7159116B2 (en) 1999-12-07 2007-01-02 Blue Spike, Inc. Systems, methods and devices for trusted transactions
US7177429B2 (en) 2000-12-07 2007-02-13 Blue Spike, Inc. System and methods for permitting open access to data objects and for securing data within the data objects
US6385596B1 (en) 1998-02-06 2002-05-07 Liquid Audio, Inc. Secure online music distribution system
US8332478B2 (en) 1998-10-01 2012-12-11 Digimarc Corporation Context sensitive connected content
US7664264B2 (en) 1999-03-24 2010-02-16 Blue Spike, Inc. Utilizing data reduction in steganographic and cryptographic systems
US6367019B1 (en) 1999-03-26 2002-04-02 Liquid Audio, Inc. Copy security for portable music players
EP1061516A1 (en) * 1999-06-08 2000-12-20 Deutsche Thomson-Brandt Gmbh Method for play back of an encrypted piece of information recorded on an information carrier and play back apparatus for use within said method
US7475246B1 (en) 1999-08-04 2009-01-06 Blue Spike, Inc. Secure personal content server
US7028011B1 (en) * 1999-09-10 2006-04-11 Eastman Kodak Company Hybrid optical recording disc with copy protection
EP1338944A3 (en) * 2000-03-30 2006-09-27 Siemens Aktiengesellschaft Method for activating a file by means of a vectorial code
WO2002003385A1 (en) * 2000-07-05 2002-01-10 Moskowitz Scott A Copy protection of digital data combining steganographic and cryptographic techniques
GB0031663D0 (en) * 2000-12-27 2001-02-07 Internet Extra Ltd Method and apparatus for controlling access to multimedia files design and implementation
DE10114670A1 (en) * 2001-03-23 2002-10-17 Trend Network Ag Mobile multimedia device
GB2377514B (en) 2001-07-05 2005-04-27 Hewlett Packard Co Document encryption
US7287275B2 (en) 2002-04-17 2007-10-23 Moskowitz Scott A Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth
DE102004009273A1 (en) 2004-02-26 2005-09-15 Robert Bosch Gmbh Navigation system with a drive for reading navigation data and method for operating a navigation system
JP4119881B2 (en) † 2004-11-15 2008-07-16 株式会社メガチップス Semiconductor memory device
US7543122B2 (en) 2005-08-11 2009-06-02 Research In Motion Limited System and method for obscuring hand-held device data traffic information

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168396A (en) * 1977-10-31 1979-09-18 Best Robert M Microprocessor for executing enciphered programs
US4644493A (en) * 1984-09-14 1987-02-17 International Business Machines Corporation Implementing a shared higher level of privilege on personal computers for copy protection of software
US5058162A (en) * 1990-08-09 1991-10-15 Hewlett-Packard Company Method of distributing computer data files
US5224166A (en) * 1992-08-11 1993-06-29 International Business Machines Corporation System for seamless processing of encrypted and non-encrypted data and instructions
US5319705A (en) * 1992-10-21 1994-06-07 International Business Machines Corporation Method and system for multimedia access control enablement
US5438622A (en) * 1994-01-21 1995-08-01 Apple Computer, Inc. Method and apparatus for improving the security of an electronic codebook encryption scheme utilizing an offset in the pseudorandom sequence

Also Published As

Publication number Publication date
WO1997044736A1 (en) 1997-11-27

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