WO2001099333A1 - Dispositif de traitement d'informations et procede de traitement - Google Patents
Dispositif de traitement d'informations et procede de traitement Download PDFInfo
- Publication number
- WO2001099333A1 WO2001099333A1 PCT/JP2001/005327 JP0105327W WO0199333A1 WO 2001099333 A1 WO2001099333 A1 WO 2001099333A1 JP 0105327 W JP0105327 W JP 0105327W WO 0199333 A1 WO0199333 A1 WO 0199333A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- key
- information processing
- decryption
- node
- unique
- Prior art date
Links
- 230000010365 information processing Effects 0.000 title claims description 195
- 238000003672 processing method Methods 0.000 title claims description 46
- 238000012545 processing Methods 0.000 claims abstract description 170
- 238000000034 method Methods 0.000 claims description 228
- 230000008569 process Effects 0.000 claims description 193
- 238000003860 storage Methods 0.000 claims description 137
- 238000004364 calculation method Methods 0.000 claims description 32
- 238000004590 computer program Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 abstract description 47
- 238000010586 diagram Methods 0.000 description 37
- 238000004891 communication Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013478 data encryption standard Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 208000033962 Fontaine progeroid syndrome Diseases 0.000 description 1
- 241000277331 Salmonidae Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- 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
- 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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
- H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
- H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
-
- 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
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
-
- 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
- G11B20/00195—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 using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
-
- 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
- G11B20/00492—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
- G11B20/00507—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 wherein consecutive physical data units of the record carrier are encrypted with separate encryption keys, e.g. the key changes on a cluster or sector basis
-
- 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
- G11B20/00528—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 wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
- H04L63/064—Hierarchical key distribution, e.g. by multi-tier trusted parties
-
- 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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
-
- 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
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/069,176 US7346169B2 (en) | 2000-06-21 | 2001-06-21 | Information processing device and method |
AU74583/01A AU7458301A (en) | 2000-06-21 | 2001-06-21 | Information processing device and processing method |
EP01941164A EP1221782B1 (en) | 2000-06-21 | 2001-06-21 | Information processing device and processing method |
DE60133359T DE60133359T2 (de) | 2000-06-21 | 2001-06-21 | Informationsverarbeitungsvorrichtung und Informationsverarbeitungsverfahren |
HK03104432.5A HK1053916B (zh) | 2000-06-21 | 2003-06-19 | 信息處理裝置及處理方法 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000186173 | 2000-06-21 | ||
JP2000-186172 | 2000-06-21 | ||
JP2000-186173 | 2000-06-21 | ||
JP2000186172 | 2000-06-21 | ||
JP2000243204 | 2000-08-10 | ||
JP2000-243204 | 2000-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001099333A1 true WO2001099333A1 (fr) | 2001-12-27 |
Family
ID=27343789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/005327 WO2001099333A1 (fr) | 2000-06-21 | 2001-06-21 | Dispositif de traitement d'informations et procede de traitement |
Country Status (8)
Country | Link |
---|---|
US (1) | US7346169B2 (ja) |
EP (4) | EP1414181B1 (ja) |
KR (1) | KR100763693B1 (ja) |
CN (1) | CN1389043B (ja) |
AU (1) | AU7458301A (ja) |
DE (4) | DE60136861D1 (ja) |
HK (1) | HK1053916B (ja) |
WO (1) | WO2001099333A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7619953B2 (en) * | 2004-11-17 | 2009-11-17 | Sony Corporation | Recording and playback apparatus, recording and playback method, and program |
CN104917787A (zh) * | 2014-03-11 | 2015-09-16 | 中国电信股份有限公司 | 基于群组密钥的文件安全共享方法和系统 |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7395425B2 (en) | 2001-03-29 | 2008-07-01 | Matsushita Electric Industrial Co., Ltd. | Data protection system that protects data by encrypting the data |
EP1440439A1 (en) * | 2001-10-12 | 2004-07-28 | Koninklijke Philips Electronics N.V. | Apparatus and method for reading or writing block-wise stored user data |
US20040136372A1 (en) * | 2003-01-10 | 2004-07-15 | Dumitru Gruia | Protecting data transmissions in a point-to-multipoint network |
US7421742B2 (en) * | 2003-01-15 | 2008-09-02 | Sony Corporation | Signal processing system, recording method, program, recording medium, reproduction device and information processing device |
US7835520B2 (en) * | 2003-02-20 | 2010-11-16 | Zoran Corporation | Unique identifier per chip for digital audio/video data encryption/decryption in personal video recorders |
US7539307B2 (en) | 2003-11-26 | 2009-05-26 | International Business Machines Corporation | System, method, and service for delivering enhanced multimedia content on physical media |
JP4114605B2 (ja) * | 2003-12-24 | 2008-07-09 | ソニー株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム |
US7499550B2 (en) * | 2004-02-09 | 2009-03-03 | International Business Machines Corporation | System and method for protecting a title key in a secure distribution system for recordable media content |
US20050262361A1 (en) * | 2004-05-24 | 2005-11-24 | Seagate Technology Llc | System and method for magnetic storage disposal |
JP4717398B2 (ja) * | 2004-09-10 | 2011-07-06 | キヤノン株式会社 | データ処理装置の制御方法 |
TWI277870B (en) * | 2004-11-22 | 2007-04-01 | Toshiba Corp | Copyright management method, information recording/reproducing method and device, and information recording medium and method of manufacturing the medium |
US7971070B2 (en) * | 2005-01-11 | 2011-06-28 | International Business Machines Corporation | Read/write media key block |
KR20060097514A (ko) * | 2005-03-07 | 2006-09-14 | 삼성전자주식회사 | 로컬 서버에서 브로드캐스트 암호화 방식에 따라 암호화된컨텐트를 제공하는 방법 및 장치 |
JP2007013440A (ja) * | 2005-06-29 | 2007-01-18 | Toshiba Corp | メディア鍵生成方法、メディア鍵生成装置、再生装置、及び記録再生装置 |
JP2007235260A (ja) * | 2006-02-27 | 2007-09-13 | Toshiba Corp | コンテンツ記録装置、コンテンツ記録方法およびコンテンツ記録プログラム |
JP2008022367A (ja) * | 2006-07-13 | 2008-01-31 | Toshiba Corp | 暗号鍵情報保持方法および暗号鍵情報処理装置 |
US20080226078A1 (en) * | 2007-03-12 | 2008-09-18 | Microsoft Corporation | Enabling recording and copying data |
KR101391152B1 (ko) * | 2007-04-05 | 2014-05-02 | 삼성전자주식회사 | Ums 기기의 컨텐츠를 보호하기 위한 방법 및 장치 |
US20100002885A1 (en) * | 2008-03-26 | 2010-01-07 | Ericsson Inc. | Efficient multiparty key exchange |
US8122501B2 (en) * | 2008-06-20 | 2012-02-21 | International Business Machines Corporation | Traitor detection for multilevel assignment |
US8108928B2 (en) * | 2008-06-20 | 2012-01-31 | International Business Machines Corporation | Adaptive traitor tracing |
US8422684B2 (en) * | 2008-08-15 | 2013-04-16 | International Business Machines Corporation | Security classes in a media key block |
US9501429B2 (en) * | 2008-09-05 | 2016-11-22 | Vixs Systems Inc. | Dynamic key and rule storage protection |
US8594333B2 (en) * | 2008-09-05 | 2013-11-26 | Vixs Systems, Inc | Secure key access with one-time programmable memory and applications thereof |
US9432184B2 (en) * | 2008-09-05 | 2016-08-30 | Vixs Systems Inc. | Provisioning of secure storage for both static and dynamic rules for cryptographic key information |
US8571209B2 (en) | 2009-01-19 | 2013-10-29 | International Business Machines | Recording keys in a broadcast-encryption-based system |
US8250379B2 (en) * | 2009-10-13 | 2012-08-21 | Microsoft Corporation | Secure storage of temporary secrets |
KR101270991B1 (ko) * | 2009-12-21 | 2013-06-04 | 한국전자통신연구원 | 계층적 역할 기반 접근 제어를 위한 키 트리 구성 및 키 분배 방법 |
US9906361B1 (en) | 2015-06-26 | 2018-02-27 | EMC IP Holding Company LLC | Storage system with master key hierarchy configured for efficient shredding of stored encrypted data items |
US9659190B1 (en) | 2015-06-26 | 2017-05-23 | EMC IP Holding Company LLC | Storage system configured for encryption of data items using multidimensional keys having corresponding class keys |
US10284534B1 (en) | 2015-06-26 | 2019-05-07 | EMC IP Holding Company LLC | Storage system with controller key wrapping of data encryption key in metadata of stored data item |
US9774610B2 (en) * | 2015-07-28 | 2017-09-26 | Futurewei Technologies, Inc. | Certificateless data verification with revocable signatures |
US9779269B1 (en) | 2015-08-06 | 2017-10-03 | EMC IP Holding Company LLC | Storage system comprising per-tenant encryption keys supporting deduplication across multiple tenants |
US10339323B2 (en) | 2015-09-15 | 2019-07-02 | Google Llc | Group license encryption and decryption |
US10326744B1 (en) | 2016-03-21 | 2019-06-18 | EMC IP Holding Company LLC | Security layer for containers in multi-tenant environments |
US10284557B1 (en) | 2016-11-17 | 2019-05-07 | EMC IP Holding Company LLC | Secure data proxy for cloud computing environments |
US10298551B1 (en) | 2016-12-14 | 2019-05-21 | EMC IP Holding Company LLC | Privacy-preserving policy enforcement for messaging |
US11128437B1 (en) | 2017-03-30 | 2021-09-21 | EMC IP Holding Company LLC | Distributed ledger for peer-to-peer cloud resource sharing |
US10664373B2 (en) * | 2017-07-31 | 2020-05-26 | Lg Chem, Ltd. | Self-diagnosing microcontroller for reading correct channels of an analog-to-digital converter |
US11063745B1 (en) | 2018-02-13 | 2021-07-13 | EMC IP Holding Company LLC | Distributed ledger for multi-cloud service automation |
US11128460B2 (en) | 2018-12-04 | 2021-09-21 | EMC IP Holding Company LLC | Client-side encryption supporting deduplication across single or multiple tenants in a storage system |
US11019033B1 (en) | 2019-12-27 | 2021-05-25 | EMC IP Holding Company LLC | Trust domain secure enclaves in cloud infrastructure |
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JPH09115241A (ja) * | 1995-06-30 | 1997-05-02 | Sony Corp | データ記録装置及び方法、データ再生装置及び方法、並びに記録媒体 |
JPH11187013A (ja) * | 1997-12-24 | 1999-07-09 | Ibm Japan Ltd | 暗号鍵配信システム |
JPH11328850A (ja) * | 1998-05-11 | 1999-11-30 | Sony Corp | 情報配信システム |
EP0969667A2 (en) * | 1998-07-02 | 2000-01-05 | Matsushita Electric Industrial Co., Ltd. | Pay broadcasting system with enhanced security against illegal access to a down loaded program in a subscriber terminal |
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DE19511298B4 (de) | 1995-03-28 | 2005-08-18 | Deutsche Telekom Ag | Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder |
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DE19649292A1 (de) * | 1996-11-28 | 1998-06-04 | Deutsche Telekom Ag | Verfahren zum Sichern eines durch eine Schlüsselhierarchie geschützten Systems |
US6069957A (en) * | 1997-03-07 | 2000-05-30 | Lucent Technologies Inc. | Method and apparatus for providing hierarchical key system in restricted-access television system |
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- 2001-06-21 DE DE60135681T patent/DE60135681D1/de not_active Expired - Lifetime
- 2001-06-21 AU AU74583/01A patent/AU7458301A/en not_active Abandoned
- 2001-06-21 EP EP03078984A patent/EP1414181B1/en not_active Expired - Lifetime
- 2001-06-21 EP EP03079019A patent/EP1416663B1/en not_active Expired - Lifetime
- 2001-06-21 DE DE60137085T patent/DE60137085D1/de not_active Expired - Lifetime
- 2001-06-21 KR KR1020027002190A patent/KR100763693B1/ko not_active IP Right Cessation
- 2001-06-21 EP EP03079018A patent/EP1416662B1/en not_active Expired - Lifetime
- 2001-06-21 DE DE60133359T patent/DE60133359T2/de not_active Expired - Lifetime
- 2001-06-21 EP EP01941164A patent/EP1221782B1/en not_active Expired - Lifetime
- 2001-06-21 WO PCT/JP2001/005327 patent/WO2001099333A1/ja active IP Right Grant
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CN104917787B (zh) * | 2014-03-11 | 2018-10-23 | 中国电信股份有限公司 | 基于群组密钥的文件安全共享方法和系统 |
Also Published As
Publication number | Publication date |
---|---|
DE60137085D1 (de) | 2009-01-29 |
DE60136861D1 (de) | 2009-01-15 |
DE60135681D1 (de) | 2008-10-16 |
EP1416662A1 (en) | 2004-05-06 |
EP1416662B1 (en) | 2008-12-03 |
HK1053916A1 (en) | 2003-11-07 |
DE60133359D1 (de) | 2008-05-08 |
CN1389043B (zh) | 2010-09-29 |
EP1221782A4 (en) | 2003-06-04 |
KR100763693B1 (ko) | 2007-10-04 |
US20020164034A1 (en) | 2002-11-07 |
EP1221782A1 (en) | 2002-07-10 |
US7346169B2 (en) | 2008-03-18 |
HK1053916B (zh) | 2011-07-08 |
AU7458301A (en) | 2002-01-02 |
EP1221782B1 (en) | 2008-03-26 |
KR20020041805A (ko) | 2002-06-03 |
EP1416663A1 (en) | 2004-05-06 |
EP1416663B1 (en) | 2008-09-03 |
DE60133359T2 (de) | 2009-04-02 |
EP1414181A1 (en) | 2004-04-28 |
EP1414181B1 (en) | 2008-12-17 |
CN1389043A (zh) | 2003-01-01 |
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