WO2004114303B1 - Playback apparatus, playback method, and program for reproducing an encrypted virtual package - Google Patents
Playback apparatus, playback method, and program for reproducing an encrypted virtual packageInfo
- Publication number
- WO2004114303B1 WO2004114303B1 PCT/JP2004/008554 JP2004008554W WO2004114303B1 WO 2004114303 B1 WO2004114303 B1 WO 2004114303B1 JP 2004008554 W JP2004008554 W JP 2004008554W WO 2004114303 B1 WO2004114303 B1 WO 2004114303B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- key
- information
- encrypted
- content
- obtaining
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 14
Classifications
-
- 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
- G11B20/10—Digital recording or reproducing
-
- 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
- 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
- G11B20/0021—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
- G11B20/00246—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 obtained from a local device, e.g. device key initially stored by the player or by the recorder
-
- 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
- G11B20/00297—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 the key being stored in a management area, e.g. the video manager [VMG] of a DVD
- G11B20/00304—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 the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
-
- 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
- G11B20/00492—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 content or user data is encrypted
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
-
- 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
- G06F2221/2153—Using hardware token as a secondary aspect
-
- 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
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/60—Solid state media
Abstract
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04746067.0A EP1623420B1 (en) | 2003-06-18 | 2004-06-11 | Playback apparatus, playback method, and program for reproducing an encrypted virtual package |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003173908 | 2003-06-18 | ||
JP2003-173908 | 2003-06-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004114303A1 WO2004114303A1 (en) | 2004-12-29 |
WO2004114303B1 true WO2004114303B1 (en) | 2005-03-17 |
Family
ID=33534739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008554 WO2004114303A1 (en) | 2003-06-18 | 2004-06-11 | Playback apparatus, playback method, and program for reproducing an encrypted virtual package |
Country Status (5)
Country | Link |
---|---|
US (1) | US7555129B2 (en) |
EP (1) | EP1623420B1 (en) |
KR (1) | KR100999769B1 (en) |
CN (1) | CN100498948C (en) |
WO (1) | WO2004114303A1 (en) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3965126B2 (en) * | 2002-03-20 | 2007-08-29 | 松下電器産業株式会社 | Playback device for playing content |
US7353543B2 (en) * | 2003-01-10 | 2008-04-01 | Matsushita Electric Industrial Co., Ltd. | Contents distribution system |
WO2005074187A1 (en) * | 2004-01-29 | 2005-08-11 | Sony Corporation | Information processing device and method |
JP2006014035A (en) * | 2004-06-28 | 2006-01-12 | Toshiba Corp | Storage medium processing method, storage medium processor and program |
JP2006020154A (en) * | 2004-07-02 | 2006-01-19 | Toshiba Corp | Content management method and content management program, and electronic device |
EP1770535A4 (en) * | 2004-07-06 | 2009-07-15 | Panasonic Corp | Recording medium, and information processing device and information processing method for the recording medium |
JP2006023957A (en) * | 2004-07-07 | 2006-01-26 | Sony Corp | Semiconductor integrated circuit and information processor |
US8036513B2 (en) * | 2004-07-22 | 2011-10-11 | Panasonic Corporation | Playback apparatus and playback method |
US7882563B2 (en) | 2004-07-23 | 2011-02-01 | Findaway World, Inc. | Personal media player apparatus and method |
US7562394B2 (en) | 2004-07-23 | 2009-07-14 | Findaway World Llc | Personal media player apparatus and method |
US7559089B2 (en) | 2004-07-23 | 2009-07-07 | Findaway World, Inc. | Personal media player apparatus and method |
EP1632907B1 (en) * | 2004-08-24 | 2019-10-30 | Canon Kabushiki Kaisha | Data-processing system and method for controlling same, computer program, and computer-readable recording medium |
US20060077817A1 (en) * | 2004-09-13 | 2006-04-13 | Seo Kang S | Method and apparatus for reproducing data from recording medium using local storage |
US20060077773A1 (en) * | 2004-09-13 | 2006-04-13 | Seo Kang S | Method and apparatus for reproducing data from recording medium using local storage |
EP1789958A4 (en) * | 2004-09-13 | 2009-12-09 | Lg Electronics Inc | Method and apparatus for reproducing a data recorded in recording medium using a local storage |
JP2006094404A (en) * | 2004-09-27 | 2006-04-06 | Toshiba Corp | Broadcast receiver and broadcast receiving method |
JP4564319B2 (en) * | 2004-09-27 | 2010-10-20 | 株式会社東芝 | Communication device and communication method |
KR20060047549A (en) * | 2004-10-12 | 2006-05-18 | 엘지전자 주식회사 | Method and apparatus for reproducing a data recorded in recording medium using a local storage |
KR20060063601A (en) * | 2004-12-03 | 2006-06-12 | 엘지전자 주식회사 | Method and apparatus of downloading/updating a data to local storage |
CN101057286B (en) * | 2004-11-08 | 2010-04-07 | Lg电子株式会社 | Method and apparatus for reproducing a data recorded in recording medium using a local storage |
US20080133564A1 (en) | 2004-11-09 | 2008-06-05 | Thomson Licensing | Bonding Contents On Separate Storage Media |
KR20060081323A (en) * | 2005-01-07 | 2006-07-12 | 엘지전자 주식회사 | Method and apparatus for reproducing a data recorded in recording medium using a local storage |
WO2006078100A2 (en) * | 2005-01-19 | 2006-07-27 | Lg Electronics Inc. | Recording medium, apparatus for decrypting data and method thereof |
KR101147763B1 (en) * | 2005-01-19 | 2012-05-25 | 엘지전자 주식회사 | Data decryption method and apparatus, recoding medium comprising encrypted data |
WO2006078099A2 (en) * | 2005-01-19 | 2006-07-27 | Lg Electronics Inc. | Data transmitting method, recording medium, apparatus for reproducing data from recording medium using local storage and method thereof |
KR20060085154A (en) * | 2005-01-21 | 2006-07-26 | 엘지전자 주식회사 | Recording mdium, method and apparatus for reproducing data recorded in recording medium using a local storage |
EP1849160A4 (en) * | 2005-01-31 | 2012-05-30 | Lg Electronics Inc | Method and apparatus for enabling enhanced navigation data associated with contents recorded on a recording medium to be utilized from a portable storage |
CN101194460B (en) | 2005-04-07 | 2011-02-09 | 松下电器产业株式会社 | Circuit building device |
JP4801055B2 (en) * | 2005-04-25 | 2011-10-26 | パナソニック株式会社 | Information security device |
JP4372061B2 (en) * | 2005-07-01 | 2009-11-25 | パナソニック株式会社 | Confidential information implementation system and LSI |
US8887309B2 (en) * | 2005-08-23 | 2014-11-11 | Intrinsic Id B.V. | Method and apparatus for information carrier authentication |
JP4687424B2 (en) | 2005-11-25 | 2011-05-25 | ソニー株式会社 | Information processing apparatus, information recording medium, information processing method, and computer program |
JP2007233924A (en) * | 2006-03-03 | 2007-09-13 | Sony Corp | Information processing system, information processor and information processing method, program and recording medium |
KR100812379B1 (en) * | 2006-05-11 | 2008-03-11 | 주식회사 케이티프리텔 | Digital Rights ManagementDRM method and apparatus of self made contents |
US20070298840A1 (en) * | 2006-06-02 | 2007-12-27 | Findaway World, Inc. | Personal media player apparatus and method |
JP2008103844A (en) * | 2006-10-17 | 2008-05-01 | Toshiba Corp | Reproducing apparatus and key management method |
JP2009017131A (en) * | 2007-07-03 | 2009-01-22 | Toshiba Corp | User device and program |
JP5050842B2 (en) * | 2007-12-26 | 2012-10-17 | 沖電気工業株式会社 | ENCRYPTION DEVICE, ENCRYPTION PROGRAM, DATA PROVIDING DEVICE, AND DATA PROVIDING SYSTEM |
JP2010010824A (en) * | 2008-06-24 | 2010-01-14 | Toshiba Corp | Electronic apparatus and copyright-protected chip |
US8422684B2 (en) * | 2008-08-15 | 2013-04-16 | International Business Machines Corporation | Security classes in a media key block |
US8179466B2 (en) | 2009-03-11 | 2012-05-15 | Eastman Kodak Company | Capture of video with motion-speed determination and variable capture rate |
US8405770B2 (en) * | 2009-03-12 | 2013-03-26 | Intellectual Ventures Fund 83 Llc | Display of video with motion |
US8358782B2 (en) * | 2009-06-26 | 2013-01-22 | Eastman Kodak Company | Method for displaying a video of a scene |
CN102422301A (en) * | 2010-03-11 | 2012-04-18 | 松下电器产业株式会社 | Recording system, reproduction system, key distribution server, recording device, recording medium device, reproduction device, recording method, and reproduction method |
US8407808B2 (en) * | 2010-05-27 | 2013-03-26 | Media Rights Technologies, Inc. | Security thread for protecting media content |
JP5605146B2 (en) * | 2010-10-08 | 2014-10-15 | ソニー株式会社 | Information processing apparatus, information processing method, and program |
TWI615732B (en) * | 2016-12-27 | 2018-02-21 | 瑞昱半導體股份有限公司 | Electronic component of electronic device, method of starting electronic device and encryption method |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0733239B1 (en) * | 1994-10-10 | 2003-08-06 | Koninklijke Philips Electronics N.V. | Database system with local information remotely supported with dynamic information |
US5796839A (en) * | 1995-10-16 | 1998-08-18 | Sony Corporation | Encryption method, encryption apparatus, recording method, decoding method, decoding apparatus and recording medium |
US5825876A (en) * | 1995-12-04 | 1998-10-20 | Northern Telecom | Time based availability to content of a storage medium |
US6438235B2 (en) * | 1998-08-05 | 2002-08-20 | Hewlett-Packard Company | Media content protection utilizing public key cryptography |
FR2790346A1 (en) * | 1999-02-26 | 2000-09-01 | Schlumberger Systems & Service | DEVICE AND METHOD FOR SECURING A DATA STORAGE MEDIA |
JP2000285592A (en) | 1999-03-30 | 2000-10-13 | Hitachi Ltd | Package media, authentication noncontact ic chip reproducing device, and communication equipment |
JP4131067B2 (en) | 1999-10-18 | 2008-08-13 | ソニー株式会社 | Information processing apparatus, information processing method, and program recording medium |
JP2001216727A (en) | 2000-01-31 | 2001-08-10 | Victor Co Of Japan Ltd | Information recording medium, recorder, recording method, reproducing device, reproducing method, recording and reproducing method and transmitting method |
AU2001260970A1 (en) * | 2000-01-31 | 2001-08-07 | Vdg Inc. | Block encryption method and schemes for data confidentiality and integrity protection |
JP4622064B2 (en) * | 2000-04-06 | 2011-02-02 | ソニー株式会社 | Information recording apparatus, information reproducing apparatus, information recording method, information reproducing method, information recording medium, and program providing medium |
JP4370721B2 (en) * | 2000-04-06 | 2009-11-25 | ソニー株式会社 | Information recording apparatus, information reproducing apparatus, information recording method, information reproducing method, key update terminal apparatus, generation management key update method, information recording medium, and program providing medium |
KR100377176B1 (en) * | 2000-06-12 | 2003-03-26 | 주식회사 하이닉스반도체 | Encryption device using data encryption standard algorithm |
JP2002015511A (en) | 2000-06-26 | 2002-01-18 | Olympus Optical Co Ltd | Off-line sharing security system using removable media |
JP4810752B2 (en) | 2000-08-04 | 2011-11-09 | ソニー株式会社 | DATA RECORDING MEDIUM, DATA RECORDING METHOD AND DEVICE, DATA REPRODUCTION METHOD AND DEVICE, DATA TRANSMISSION METHOD AND DEVICE, AND DATA RECEPTION METHOD AND DEVICE |
JP2002281013A (en) | 2000-12-18 | 2002-09-27 | Matsushita Electric Ind Co Ltd | Key management device for protecting copyright, recording medium, reproduction device, recording device, key management method, reproduction method, key management program, and computer readable recording medium with key management program recorded |
US20020076204A1 (en) | 2000-12-18 | 2002-06-20 | Toshihisa Nakano | Key management device/method/program, recording medium, reproducing device/method, recording device, and computer-readable, second recording medium storing the key management program for copyright protection |
US6912634B2 (en) * | 2000-12-28 | 2005-06-28 | Intel Corporation | Verifying the integrity of a media key block by storing validation data in a validation area of media |
US20040136536A1 (en) * | 2001-05-18 | 2004-07-15 | Michtchenko Valentin Alexandrovich | Method for recording for distributing and reproducing information recorded on data carriers |
JP3851115B2 (en) * | 2001-06-28 | 2006-11-29 | 富士通株式会社 | Cryptographic circuit |
HU0104183D0 (en) * | 2001-10-09 | 2001-12-28 | Optilink Ab | Method and apparatus for the engryption of data |
US7221763B2 (en) * | 2002-04-24 | 2007-05-22 | Silicon Storage Technology, Inc. | High throughput AES architecture |
US7305711B2 (en) * | 2002-12-10 | 2007-12-04 | Intel Corporation | Public key media key block |
-
2004
- 2004-06-11 EP EP04746067.0A patent/EP1623420B1/en active Active
- 2004-06-11 KR KR1020057022408A patent/KR100999769B1/en active IP Right Grant
- 2004-06-11 WO PCT/JP2004/008554 patent/WO2004114303A1/en active Application Filing
- 2004-06-11 CN CNB2004800167625A patent/CN100498948C/en active Active
- 2004-06-17 US US10/868,872 patent/US7555129B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1623420A1 (en) | 2006-02-08 |
EP1623420B1 (en) | 2015-11-11 |
KR100999769B1 (en) | 2010-12-08 |
US20050018854A1 (en) | 2005-01-27 |
WO2004114303A1 (en) | 2004-12-29 |
CN1820315A (en) | 2006-08-16 |
CN100498948C (en) | 2009-06-10 |
KR20060027317A (en) | 2006-03-27 |
US7555129B2 (en) | 2009-06-30 |
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