BR0213959A - Sistema de proteção de obra digital, aparelho de gerenciamento de chave, e aparelho do usuário - Google Patents
Sistema de proteção de obra digital, aparelho de gerenciamento de chave, e aparelho do usuárioInfo
- Publication number
- BR0213959A BR0213959A BR0213959-6A BR0213959A BR0213959A BR 0213959 A BR0213959 A BR 0213959A BR 0213959 A BR0213959 A BR 0213959A BR 0213959 A BR0213959 A BR 0213959A
- Authority
- BR
- Brazil
- Prior art keywords
- medium
- recording
- key
- encrypted
- key management
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- G11B20/00217—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
- G11B20/00333—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 header data, e.g. in sector headers
-
- 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
Abstract
"SISTEMA DE PROTEçãO DE OBRA DIGITAL, APARELHO DE GERENCIAMENTO DE CHAVE, E APARELHO DO USUáRIO". A invenção refere-se a um sistema composto de um aparelho de gravação que grava um conteúdo digitalizado tal como um filme, ou um aparelho de reprodução que reproduz o conteúdo digitalizado, e um meio de gravação, em que uma chave de meio para utilização na gravação ou na reprodução é criptografada por uma pluralidade de chaves de dispositivo e gravada no meio de gravação. Aqui, o aparelho de gravação ou o aparelho de reprodução especifica a chave de meio criptografada que é para decifrar, de entre a pluralidade de chaves de meio criptografadas. Um aparelho de gerenciamento de chave grava os padrões de revogação de nodo designados aos nodos em uma estrutura em árvore para o meio de gravação em uma ordem particular, como informações de cabeçalho ou informações de chave, juntamente com as chaves de meio criptografadas. O aparelho de gravação ou o aparelho de reprodução especifica a chave de meio criptografada a ser decifrada, analisando os padrões de revogação de nodo seq³encialmente.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001329863 | 2001-10-26 | ||
PCT/JP2002/010869 WO2003036858A2 (en) | 2001-10-26 | 2002-10-21 | Digital work protection system, key management apparatus, and user apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0213959A true BR0213959A (pt) | 2004-10-19 |
Family
ID=19145683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0213959-6A BR0213959A (pt) | 2001-10-26 | 2002-10-21 | Sistema de proteção de obra digital, aparelho de gerenciamento de chave, e aparelho do usuário |
Country Status (7)
Country | Link |
---|---|
US (1) | US7272229B2 (pt) |
EP (1) | EP1464139A2 (pt) |
KR (1) | KR20040052254A (pt) |
CN (1) | CN1608361A (pt) |
AU (1) | AU2002334425A1 (pt) |
BR (1) | BR0213959A (pt) |
WO (1) | WO2003036858A2 (pt) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7757278B2 (en) * | 2001-01-04 | 2010-07-13 | Safenet, Inc. | Method and apparatus for transparent encryption |
KR20040104723A (ko) * | 2002-05-09 | 2004-12-10 | 마츠시타 덴끼 산교 가부시키가이샤 | 공개 키 인증서 무효화 리스트 생성 장치, 무효화 판정장치 및 인증 시스템 |
AU2003262857A1 (en) * | 2002-08-24 | 2004-03-11 | Ingrian Networks, Inc. | Selective feature activation |
EP1593229B1 (en) * | 2003-01-15 | 2010-10-13 | Panasonic Corporation | Content protection system, terminal appparatus, terminal apparatus method and recording medium |
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 |
CN100499450C (zh) * | 2003-04-22 | 2009-06-10 | 国际商业机器公司 | 数字资源的分层密钥生成方法及其设备 |
JP4469587B2 (ja) * | 2003-09-30 | 2010-05-26 | 株式会社東芝 | 情報記録装置及び情報記録方法、及びデジタル放送受信器 |
KR101022465B1 (ko) * | 2003-11-13 | 2011-03-15 | 삼성전자주식회사 | 암호화된 디지털 데이터의 복사 및 복호화 방법 및 장치 |
CN100568366C (zh) * | 2004-01-15 | 2009-12-09 | 松下电器产业株式会社 | 内容再现装置 |
US7392381B2 (en) * | 2004-04-13 | 2008-06-24 | Intel Corporation | Proactive forced renewal of content protection implementations |
US7519835B2 (en) * | 2004-05-20 | 2009-04-14 | Safenet, Inc. | Encrypted table indexes and searching encrypted tables |
KR20060097514A (ko) * | 2005-03-07 | 2006-09-14 | 삼성전자주식회사 | 로컬 서버에서 브로드캐스트 암호화 방식에 따라 암호화된컨텐트를 제공하는 방법 및 장치 |
KR100680231B1 (ko) * | 2005-03-25 | 2007-02-08 | 이화여자대학교 산학협력단 | 무선 네트워크 환경에서의 키관리 방법 |
KR100717005B1 (ko) * | 2005-04-06 | 2007-05-10 | 삼성전자주식회사 | 폐기 키를 결정하는 방법 및 장치와 이것을 이용하여복호화하는 방법 및 장치 |
KR100765750B1 (ko) * | 2005-05-09 | 2007-10-15 | 삼성전자주식회사 | 브로드캐스트 암호화 방식에 따라 효율적으로암호화/복호화하는 방법 및 장치 |
US7925973B2 (en) * | 2005-08-12 | 2011-04-12 | Brightcove, Inc. | Distribution of content |
ATE492956T1 (de) * | 2005-09-06 | 2011-01-15 | Nero Ag | Verfahren und vorrichtung zur ermittlung eines kommunikationsschlüssels zwischen einem ersten kommunikationspartner und einem zweiten kommunikationspartner unter benutzung einer dritten partei |
US20070079386A1 (en) * | 2005-09-26 | 2007-04-05 | Brian Metzger | Transparent encryption using secure encryption device |
US20070079140A1 (en) * | 2005-09-26 | 2007-04-05 | Brian Metzger | Data migration |
KR100803596B1 (ko) * | 2005-11-25 | 2008-02-19 | 삼성전자주식회사 | 폐기 메커니즘 상에서 외부 디바이스 또는 서비스를이용하는 복호화 방법 및 장치, 이를 위한 복호화 지원방법 및 장치 |
DE102005059139A1 (de) * | 2005-12-10 | 2007-06-21 | Arndt Seehawer | Verfahren zum Verknüpfen eines digitalen Inhalts mit einer Person |
US20070180275A1 (en) * | 2006-01-27 | 2007-08-02 | Brian Metzger | Transparent encryption using secure JDBC/ODBC wrappers |
US8386768B2 (en) * | 2006-02-08 | 2013-02-26 | Safenet, Inc. | High performance data encryption server and method for transparently encrypting/decrypting data |
US7958091B2 (en) | 2006-02-16 | 2011-06-07 | Ingrian Networks, Inc. | Method for fast bulk loading data into a database while bypassing exit routines |
FR2899748B1 (fr) * | 2006-04-07 | 2008-11-28 | Thales Sa | Schema de diffusion hybride efficace, adapte a une faible bande passante |
US7853800B2 (en) * | 2006-06-30 | 2010-12-14 | Verint Americas Inc. | Systems and methods for a secure recording environment |
US7848524B2 (en) | 2006-06-30 | 2010-12-07 | Verint Americas Inc. | Systems and methods for a secure recording environment |
US8379865B2 (en) * | 2006-10-27 | 2013-02-19 | Safenet, Inc. | Multikey support for multiple office system |
DE102007012751B4 (de) * | 2007-03-16 | 2008-11-20 | Siemens Ag | Vorrichtung, System, Konfigurationsverfahren und Konfigurationsvorrichtung |
JP4600408B2 (ja) * | 2007-03-19 | 2010-12-15 | 株式会社日立製作所 | コンテンツ再生方法及び記録再生装置 |
WO2009004707A1 (ja) * | 2007-07-02 | 2009-01-08 | Pioneer Corporation | 情報記録媒体、記録装置及び再生装置 |
US20090132804A1 (en) * | 2007-11-21 | 2009-05-21 | Prabir Paul | Secured live software migration |
US9349410B2 (en) | 2008-01-08 | 2016-05-24 | International Business Machines Corporation | Automated data storage library with target of opportunity recognition |
US8682470B2 (en) | 2008-01-08 | 2014-03-25 | International Business Machines Corporation | Data storage drive with target of opportunity recognition |
US9495561B2 (en) * | 2008-01-08 | 2016-11-15 | International Business Machines Corporation | Target of opportunity recognition during an encryption related process |
US20120069995A1 (en) * | 2010-09-22 | 2012-03-22 | Seagate Technology Llc | Controller chip with zeroizable root key |
KR102306676B1 (ko) | 2014-06-27 | 2021-09-28 | 삼성전자주식회사 | 스토리지 디바이스용 호스트 키 생성 방법 및 시스템 |
CN108307203B (zh) * | 2017-12-28 | 2019-11-08 | 中国科学院自动化研究所 | 基于多投影仪拼接融合的影片加密方法、解密方法 |
CN108777611B (zh) * | 2018-05-11 | 2021-06-18 | 吉林大学 | 基于双密钥流密码的双向链表顺序加密解密方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6307936B1 (en) * | 1997-09-16 | 2001-10-23 | Safenet, Inc. | Cryptographic key management scheme |
US6226618B1 (en) * | 1998-08-13 | 2001-05-01 | International Business Machines Corporation | Electronic content delivery system |
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 |
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 |
US6993138B1 (en) * | 2000-09-14 | 2006-01-31 | Nortel Networks Limited | Spatial key trees for key management in wireless environments |
-
2002
- 2002-10-21 WO PCT/JP2002/010869 patent/WO2003036858A2/en not_active Application Discontinuation
- 2002-10-21 AU AU2002334425A patent/AU2002334425A1/en not_active Abandoned
- 2002-10-21 CN CNA02826214XA patent/CN1608361A/zh active Pending
- 2002-10-21 KR KR10-2004-7006167A patent/KR20040052254A/ko not_active Application Discontinuation
- 2002-10-21 BR BR0213959-6A patent/BR0213959A/pt not_active Application Discontinuation
- 2002-10-21 EP EP02802032A patent/EP1464139A2/en not_active Withdrawn
- 2002-10-23 US US10/278,082 patent/US7272229B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2003036858A3 (en) | 2004-07-08 |
KR20040052254A (ko) | 2004-06-22 |
US20030081792A1 (en) | 2003-05-01 |
US7272229B2 (en) | 2007-09-18 |
EP1464139A2 (en) | 2004-10-06 |
CN1608361A (zh) | 2005-04-20 |
AU2002334425A1 (en) | 2003-05-06 |
WO2003036858A2 (en) | 2003-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B10A | Cessation: cessation confirmed |
Free format text: REFERENCIA: CONFORME SOLICITADA ATRAVES DA PETICAO 020080029893/RJ DE 28.02.2008 |