MXPA04003933A - Aparato de adminstracion de codigo. - Google Patents
Aparato de adminstracion de codigo.Info
- Publication number
- MXPA04003933A MXPA04003933A MXPA04003933A MXPA04003933A MXPA04003933A MX PA04003933 A MXPA04003933 A MX PA04003933A MX PA04003933 A MXPA04003933 A MX PA04003933A MX PA04003933 A MXPA04003933 A MX PA04003933A MX PA04003933 A MXPA04003933 A MX PA04003933A
- Authority
- MX
- Mexico
- Prior art keywords
- leaves
- apparatuses
- key management
- management apparatus
- user
- Prior art date
Links
- 230000002596 correlated effect Effects 0.000 abstract 1
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
- G11B20/00086—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
-
- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
-
- 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
- G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
-
- 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
- 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
-
- 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
- G11B20/00536—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 encrypted content data is subjected to a further, iterated encryption, e.g. interwoven encryption
-
- 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
- H04L9/0816—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
-
- 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
-
- 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
- H04L2209/605—Copy protection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Storage Device Security (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Un sistema de proteccion de trabajo digital esta compuesto de (a) aparatos de usuario que son aparatos de grabacion y/o aparatos de reproduccion para la grabacion o reproduccion de contenidos digitales tales como peliculas, (b) un medio de grabacion, y (c) un aparato de administracion de codigo que maneja la asignacion de codigos de dispositivo a los aparatos de usuario que utilizan una estructura de arbol. El aparato de administracion de codigo siempre mantiene algunas hojas con las cuales no es correlacionado ningun aparato de usuario en la estructura de arbol, genera nuevas hojas que son conectadas a partir de las hojas y que pertenecen a una nueva capa, y asigna nuevos aparatos de usuario a las hojas recientemente generadas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001329862 | 2001-10-26 | ||
PCT/JP2002/010870 WO2003036859A2 (en) | 2001-10-26 | 2002-10-21 | Key management apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA04003933A true MXPA04003933A (es) | 2004-06-18 |
Family
ID=19145682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MXPA04003933A MXPA04003933A (es) | 2001-10-26 | 2002-10-21 | Aparato de adminstracion de codigo. |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030081786A1 (es) |
EP (1) | EP1459475A2 (es) |
KR (1) | KR20040044560A (es) |
CN (1) | CN1620780A (es) |
MX (1) | MXPA04003933A (es) |
WO (1) | WO2003036859A2 (es) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7409685B2 (en) | 2002-04-12 | 2008-08-05 | Hewlett-Packard Development Company, L.P. | Initialization and update of software and/or firmware in electronic devices |
US8479189B2 (en) | 2000-11-17 | 2013-07-02 | Hewlett-Packard Development Company, L.P. | Pattern detection preprocessor in an electronic device update generation system |
EP1374476B1 (en) * | 2001-03-29 | 2015-07-22 | Panasonic Corporation | Data protection system that protects data by encrypting the data |
WO2003096616A1 (en) * | 2002-05-09 | 2003-11-20 | Matsushita Electric Industrial Co., Ltd. | Public key certificate revocation list generation apparatus, revocation judgement apparatus, and authentication system |
US7367027B1 (en) * | 2002-08-22 | 2008-04-29 | Hewlett-Packard Development Company, L.P. | System for generating efficient and compact update packages |
WO2004046936A1 (ja) * | 2002-11-20 | 2004-06-03 | Sony Corporation | 記録システムおよび方法、記録装置および方法、入力装置および方法、再生システムおよび方法、再生装置および方法、記録媒体、並びにプログラム |
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 |
US7584466B1 (en) * | 2003-06-16 | 2009-09-01 | Hewlett-Packard Development Company, L.P. | Management tree management in a mobile handset |
US8555273B1 (en) | 2003-09-17 | 2013-10-08 | Palm. Inc. | Network for updating electronic devices |
KR20050078773A (ko) * | 2004-02-02 | 2005-08-08 | 삼성전자주식회사 | 브로드캐스트 암호화 방법을 위한 사용자 키 할당 방법 |
US7904895B1 (en) | 2004-04-21 | 2011-03-08 | Hewlett-Packard Develpment Company, L.P. | Firmware update in electronic devices employing update agent in a flash memory card |
JP2005333242A (ja) * | 2004-05-18 | 2005-12-02 | Pioneer Electronic Corp | 鍵管理システム、及び再生装置 |
US8526940B1 (en) | 2004-08-17 | 2013-09-03 | Palm, Inc. | Centralized rules repository for smart phone customer care |
US8090105B2 (en) * | 2004-11-24 | 2012-01-03 | International Business Machines Corporation | Broadcast encryption with dual tree sizes |
KR100717005B1 (ko) * | 2005-04-06 | 2007-05-10 | 삼성전자주식회사 | 폐기 키를 결정하는 방법 및 장치와 이것을 이용하여복호화하는 방법 및 장치 |
US8209676B2 (en) | 2006-06-08 | 2012-06-26 | Hewlett-Packard Development Company, L.P. | Device management in a network |
WO2008014454A2 (en) | 2006-07-27 | 2008-01-31 | Hewlett-Packard Development Company, L.P. | User experience and dependency management in a mobile device |
JP2008103936A (ja) * | 2006-10-18 | 2008-05-01 | Toshiba Corp | 秘密情報管理装置および秘密情報管理システム |
US8290157B2 (en) | 2007-02-20 | 2012-10-16 | Sony Corporation | Identification of a compromised content player |
JP2009027557A (ja) * | 2007-07-20 | 2009-02-05 | Toshiba Corp | コンテンツデータ配信端末、及びコンテンツデータ配信システム |
US8219595B2 (en) * | 2008-02-14 | 2012-07-10 | Hewlett-Packard Development Company, L.P. | System and method for efficient remote data access for server management |
JP4905575B2 (ja) * | 2010-03-30 | 2012-03-28 | 日本電気株式会社 | 情報処理システム、情報処理方法、複製元情報処理装置、複製先情報処理装置、及び、プログラム |
KR102306676B1 (ko) | 2014-06-27 | 2021-09-28 | 삼성전자주식회사 | 스토리지 디바이스용 호스트 키 생성 방법 및 시스템 |
WO2016147303A1 (ja) * | 2015-03-16 | 2016-09-22 | 株式会社東芝 | 管理装置、プログラム、システム、機器および方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5995971A (en) * | 1997-09-18 | 1999-11-30 | Micdrosoft Corporation | Apparatus and accompanying methods, using a trie-indexed hierarchy forest, for storing wildcard-based patterns and, given an input key, retrieving, from the forest, a stored pattern that is identical to or more general than the key |
US6263435B1 (en) * | 1999-07-06 | 2001-07-17 | Matsushita Electric Industrial Co., Ltd. | Dual encryption protocol for scalable secure group communication |
JP2001186119A (ja) * | 1999-12-22 | 2001-07-06 | Nippon Telegr & Teleph Corp <Ntt> | 木構造を用いた鍵管理方法および鍵管理装置並びに記録媒体 |
US6614789B1 (en) * | 1999-12-29 | 2003-09-02 | Nasser Yazdani | Method of and apparatus for matching strings of different lengths |
JP4023083B2 (ja) * | 2000-04-06 | 2007-12-19 | ソニー株式会社 | 情報処理システム、情報処理方法、および情報記録媒体、並びにプログラム提供媒体 |
JP4078802B2 (ja) * | 2000-12-26 | 2008-04-23 | ソニー株式会社 | 情報処理システム、情報処理方法、情報処理装置、および情報記録媒体、並びにプログラム記録媒体 |
-
2002
- 2002-10-21 MX MXPA04003933A patent/MXPA04003933A/es unknown
- 2002-10-21 KR KR10-2004-7006168A patent/KR20040044560A/ko not_active Application Discontinuation
- 2002-10-21 CN CNA028260783A patent/CN1620780A/zh active Pending
- 2002-10-21 WO PCT/JP2002/010870 patent/WO2003036859A2/en not_active Application Discontinuation
- 2002-10-21 EP EP02802033A patent/EP1459475A2/en not_active Withdrawn
- 2002-10-23 US US10/277,747 patent/US20030081786A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1459475A2 (en) | 2004-09-22 |
KR20040044560A (ko) | 2004-05-28 |
WO2003036859A3 (en) | 2004-07-08 |
WO2003036859A2 (en) | 2003-05-01 |
US20030081786A1 (en) | 2003-05-01 |
CN1620780A (zh) | 2005-05-25 |
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