BR0005458A - Meio de gravação, dispositivo de conversão, provedor de material de conteúdo, e, processo para proporcionar material de conteúdo - Google Patents

Meio de gravação, dispositivo de conversão, provedor de material de conteúdo, e, processo para proporcionar material de conteúdo

Info

Publication number
BR0005458A
BR0005458A BR0005458-5A BR0005458A BR0005458A BR 0005458 A BR0005458 A BR 0005458A BR 0005458 A BR0005458 A BR 0005458A BR 0005458 A BR0005458 A BR 0005458A
Authority
BR
Brazil
Prior art keywords
content
encryption key
unique
conversion device
content material
Prior art date
Application number
BR0005458-5A
Other languages
English (en)
Inventor
Michael A Epstein
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BR0005458A publication Critical patent/BR0005458A/pt

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
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • 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
    • G11B20/00282—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 the content area, e.g. program area, data area or user area
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • G06F2211/008—Public Key, Asymmetric Key, Asymmetric Encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

"MEIO DE GRAVAçãO, DISPOSITIVO DE CONVERSãO, PROVEDOR DE MATERIAL DE CONTEúDO, E, PROCESSO PARA PROPORCIONAR MATERIAL DE CONTEúDO". Um sistema de criptografação previne um ataque de reprodução proporcionando um item seguro que é único para cada gravação do material de conteúdo protegido contra cópia. Um elemento de memória é proporcionado no meio de gravação que é legível porém não gravável por dispositivos externos, e cujo conteúdo varia cada vez que o material é gravado sobre o meio. O conteúdo deste elemento de memória é usado para criptografar a chave de criptografia do conteúdo. Este criptografar único da chave de criptografia do conteúdo é adicionalmente criptografado utilizando uma chave pública que corresponde a uma chave privada do dispositivo de conversão contemplado. Embora a chave de criptografar única seja determinável pela leitura e processamento do conteúdo do elemento de memória, a descriptografação da chave de criptografia do conteúdo requer tanto a chave de criptografar única como a chave privada do dispositivo de conversão contemplado. Devido à chave de criptografar única ser baseada sobre um valor de conteúdo do elemento de memória que é única para gravação do meio de gravação, um subsequente ataque de reprodução não fornecerá a mesma chave de criptografar única usada para originalmente criptografar a chave de criptografia do conteúdo. Consequentemente usada para criptografar a chave de criptografia do conteúdo, o dispositivo de conversão estará incapacitado de descriptografar a chave de criptografia do conteúdo, e desse modo estará incapacitado de descriptografar o material do conteúdo.
BR0005458-5A 1999-03-25 2000-03-22 Meio de gravação, dispositivo de conversão, provedor de material de conteúdo, e, processo para proporcionar material de conteúdo BR0005458A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12616999P 1999-03-25 1999-03-25
US09/454,349 US7162452B1 (en) 1999-03-25 1999-12-03 Key distribution via a memory device
PCT/EP2000/002597 WO2000062290A1 (en) 1999-03-25 2000-03-22 Key distribution via a memory device

Publications (1)

Publication Number Publication Date
BR0005458A true BR0005458A (pt) 2001-01-30

Family

ID=26824355

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0005458-5A BR0005458A (pt) 1999-03-25 2000-03-22 Meio de gravação, dispositivo de conversão, provedor de material de conteúdo, e, processo para proporcionar material de conteúdo

Country Status (8)

Country Link
US (1) US7162452B1 (pt)
EP (1) EP1082722B1 (pt)
JP (2) JP4753473B2 (pt)
KR (1) KR100714213B1 (pt)
CN (1) CN1175413C (pt)
BR (1) BR0005458A (pt)
DE (1) DE60042256D1 (pt)
WO (1) WO2000062290A1 (pt)

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US7305556B2 (en) * 2001-12-05 2007-12-04 Canon Kabushiki Kaisha Secure printing with authenticated printer key
JP3881942B2 (ja) * 2002-09-04 2007-02-14 松下電器産業株式会社 暗号化部を有する半導体装置
US7305711B2 (en) * 2002-12-10 2007-12-04 Intel Corporation Public key media key block
KR101094857B1 (ko) * 2003-03-14 2011-12-16 코닌클리케 필립스 일렉트로닉스 엔.브이. 디지털 저작권 관리 동글로부터의 보호된 리턴 패스
KR100994772B1 (ko) * 2004-01-10 2010-11-16 삼성전자주식회사 저장 매체의 데이터 복사 및 재생 방법
KR100864949B1 (ko) 2004-06-30 2008-10-22 노키아 코포레이션 한 단말에서 다른 단말로의 디지털 콘텐츠 권리 관리사용자 데이터 전송
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JP2008079349A (ja) * 2007-12-10 2008-04-03 Toshiba Corp 復号管理方法
JP2008079348A (ja) * 2007-12-10 2008-04-03 Toshiba Corp 復号装置
US8838968B2 (en) * 2012-05-14 2014-09-16 Ca, Inc. System and method for virtual machine data protection in a public cloud
US9344747B2 (en) * 2013-02-21 2016-05-17 Broadcom Corporation Mobile payTV DRM architecture
JP5971820B2 (ja) 2014-12-24 2016-08-17 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ データを利用する方法及び装置
JP6503242B2 (ja) * 2015-06-26 2019-04-17 ルネサスエレクトロニクス株式会社 データのセキュリティを提供するための装置、システムおよび方法ならびに当該方法をコンピュータに実行させるためのプログラム
US11868275B2 (en) * 2021-06-24 2024-01-09 International Business Machines Corporation Encrypted data processing design including local buffers

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Also Published As

Publication number Publication date
KR20010043747A (ko) 2001-05-25
EP1082722B1 (en) 2009-05-27
JP5362675B2 (ja) 2013-12-11
JP2011091800A (ja) 2011-05-06
CN1306663A (zh) 2001-08-01
DE60042256D1 (de) 2009-07-09
EP1082722A1 (en) 2001-03-14
JP4753473B2 (ja) 2011-08-24
WO2000062290A1 (en) 2000-10-19
KR100714213B1 (ko) 2007-05-02
CN1175413C (zh) 2004-11-10
JP2002541754A (ja) 2002-12-03
US7162452B1 (en) 2007-01-09

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B09X Republication of the decision to grant [chapter 9.1.3 patent gazette]

Free format text: PUBLICACAO (9.1) DA RPI 2163 DE 19/06/2012 REFEITA POR TER SIDO EFETUADA COM INCORRECAO (ERRO NO NOME DO PROCURADOR)

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 13/11/2012, MEDIANTE O RECOLHIMENTO DA TAXA QUINQUENAL DE MANUTENCAO (ARTIGOS 119 E 120 DA LPI) E OBSERVADAS AS DEMAIS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 13.11.2022