Content Protection for Recordable Media and Pre-Recorded Media (CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device, such as a personal computer, or other digital player.

PropertyValue
p:abstract
  • Content Protection for Recordable Media and Pre-Recorded Media (CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device, such as a personal computer, or other digital player. It is a form of Digital Rights Management developed by The 4C Entity, LLC . The CPRM/CPPM Specification defines a renewable cryptographic method for protecting entertainment content when recorded on physical media. The currently implemented method utilizes the Cryptomeria cipher algorithm for symmetric encryption. The types of physical media supported include, but are not limited to, recordable DVD media and flash memory . The most widespread use of CPRM is arguably in Secure Digital cards. The CPRM / CPPM Specification was designed to meet the robustness and renewability requirements of content owners while balancing the implementation needs of implementers of the technology. To accomplish these requirements the system defined by the specification relies on key management for interchangeable media, content encryption, and media-based renewability. A controversial and widely misunderstood proposal to add generic key exchange commands (that could be utilized by CPRM and other Content protection technologies) to ATA specifications for removeable hard drives was abandoned after outcry in 2001. CPRM is widely deployed in the popular Secure Digital card consumer-electronics flash memory format. The use of the CPRM specification and access to the intellectual property and cryptographic materials required to implement it requires a license from 4C Entity, LLC. The license includes a facsimile key for the product which uses CPRM/CPPM technology. (en)
  • CPRM（Content Protection for Recordable Media ）は、「コピー・ワンス（1世代だけ録画可能）」の番組を録画するときに使われるコピー制御方式。CPRMに対応した各種メディア（DVD-R、DVD-RW、DVD-RAM、DVD-R DL）や機器（DVDプレーヤーやDVDレコーダー、DVDドライブなど）やライティングソフトが必要である。SDメモリーカードやSD-Audio及びSDカード対応の携帯電話の著作権コンテンツ保存 (SDバインディング) にも採用されている。 (ja)
  • CPRM är en typ av skydd för information lagrad på minneskort av typen Secure Digital. (sv)
  • El CPRM (Content Protection for Recordable Media) es un sistema de cifrado de datos desarrollado por el grupo 4C . Su objetivo es asegurar que los discos DVD no puedan ser copiados a no ser que el dueño del contenido lo permita. Una característica del sistema CPRM es que el descifraje del código necesita una clave propia del Hardware y un software descifrador específico. Cada disco DVD grabable tiene un identificador único ID de 64 bits en la BCA, entre estos bits tiene un contador incremental que nos indica si el DVD se puede copiar o no. (es)
  • Content Protection for Recordable Media and Pre-Recorded Media é um mecanismo para controlar a cópia, movimentação e remoção de arquivos de mídia digital em dispositivos como computadores pessoais, aparelhos multimídia portáteis e telefones celulares. É uma forma de gestão de direitos digitais (em inglês Digital rights management ou DRM) desenvolvido por IBM, Intel, Matsushita e Toshiba. (pt)
p:hasPhotoCollection
rdfs:comment
  • Content Protection for Recordable Media and Pre-Recorded Media (CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device, such as a personal computer, or other digital player. (en)
  • CPRM（Content Protection for Recordable Media ）は、「コピー・ワンス（1世代� け録画可能）」の番組を録画するときに使われるコピー制御方式。CPRMに対応した各種メディア（DVD-R、DVD-RW、DVD-RAM、DVD-R DL）や機器（DVDプレーヤーやDVDレコーダー、DVDドライブなど）やライティングソフトが必要である。SDメモリーカードやSD-Audio及びSDカード対応の携帯電話の著作権コンテンツ保存 (SDバインディング) にも採用されている。 (ja)
  • CPRM är en typ av skydd för information lagrad på minneskort av typen Secure Digital. (sv)
  • El CPRM (Content Protection for Recordable Media) es un sistema de cifrado de datos desarrollado por el grupo 4C . (es)
  • Content Protection for Recordable Media and Pre-Recorded Media é um mecanismo para controlar a cópia, movimentação e remoção de arquivos de mídia digital em dispositivos como computadores pessoais, aparelhos multimídia portáteis e telefones celulares. (pt)
rdfs:label
  • Content Protection for Recordable Media (en)
  • CPRM (ja)
  • Content Protection for Recordable Media (sv)
  • Content Protection for Recordable Media (pt)
owl:sameAs
skos:subject
foaf:page
is p:redirect of