Method of copying and decrypting encrypted digital data and apparatus therefor
    2.
    发明授权
    Method of copying and decrypting encrypted digital data and apparatus therefor 有权
    复制和解密加密数字数据的方法及其装置

    公开(公告)号:US07987361B2

    公开(公告)日:2011-07-26

    申请号:US10958237

    申请日:2004-10-06

    IPC分类号: H04L29/06

    摘要: A method of and an apparatus for copying and decrypting encrypted digital data. The method of copying encrypted digital data includes encrypting a first media key block to be used for decryption of the encrypted digital data using a predetermined key of a second information storage medium and storing the encrypted digital data and the encrypted first media key block in the second information storage medium. Security of data encryption is heightened by not discarding an encryption key used for an initial encryption, encrypting the encryption key used for initial encryption using another encryption key used for a second encryption, and storing the encrypted encryption key with the data. Also, since unnecessary decryption and encryption of data are not repeated, the time required for copying data is reduced, and since data is transferred between apparatuses in an encrypted state, a security level is higher.

    摘要翻译: 一种用于复制和解密加密的数字数据的方法和装置。 复制加密的数字数据的方法包括使用第二信息存储介质的预定密钥加密要用于解密加密的数字数据的第一媒体密钥块,并将加密的数字数据和加密的第一媒体密钥块存储在第二媒体密钥块中 信息存储介质。 通过不丢弃用于初始加密的加密密钥来加密数据加密的安全性,使用用于第二加密的另一加密密钥加密用于初始加密的加密密钥,并将加密的加密密钥与该数据进行存储。 此外,由于不重复数据的不必要的解密和加密,所以减少了复制数据所需的时间,并且由于数据在加密状态的装置之间传送,所以安全级别更高。

    Apparatus and method for recording data on and reproducing data from storage medium
    3.
    发明申请
    Apparatus and method for recording data on and reproducing data from storage medium 审中-公开
    用于在存储介质上记录和再现数据的数据的装置和方法

    公开(公告)号:US20050141011A1

    公开(公告)日:2005-06-30

    申请号:US10994439

    申请日:2004-11-23

    IPC分类号: G11B20/10 G06F15/00 G11B20/00

    摘要: A method and apparatus for recording data on and/or reproducing data from a storage medium are provided. The recording apparatus includes an authenticating unit which authenticates a host, which transmits a write command to the apparatus, to verify whether the host is authentic; at least one job module which generates output information by processing the user data, which is included in the write command, based on disc information stored in the storage medium and device information stored in the apparatus, in response to the write command; a module selecting unit which selects the job module based on module selection information and sends the write command to the selected job module, when the host is determined to be authentic, the module selection information being contained in the write command and specifying the job module; and a recording unit which records the output information on the storage medium.

    摘要翻译: 提供了一种用于在存储介质上记录和/或再现数据的方法和装置。 记录装置包括认证单元,其认证向该装置发送写入命令的主机,以验证主机是否可信; 至少一个作业模块,其响应于所述写命令,基于存储在所述存储介质中的盘信息和存储在所述装置中的设备信息来处理包括在所述写命令中的所述用户数据来生成输出信息; 模块选择单元,其基于模块选择信息选择作业模块,并且当所述主机被确定为可靠时,将所述写入命令发送到所选择的作业模块,所述模块选择信息包含在所述写入命令中并指定所述作业模块; 以及记录单元,其将输出信息记录在存储介质上。

    Apparatus and method for updating copy control information of input data
    4.
    发明申请
    Apparatus and method for updating copy control information of input data 审中-公开
    更新输入数据复制控制信息的装置和方法

    公开(公告)号:US20050172136A1

    公开(公告)日:2005-08-04

    申请号:US11045048

    申请日:2005-01-31

    摘要: An apparatus and method for updating copy control information. The apparatus and method can update copy control information of input data with user-defined copy control information. The apparatus includes a copy control information detection unit, which detects copy control information from input data; a copy control information input unit, which receives user-defined copy control information from a user; and a copy control information update unit, which updates the copy control information of the input data with the user-defined copy control information. The copy control information update unit may update the copy control information of the input data with the user-defined copy control information only when the user-defined copy control information imposes a stricter restriction on copying the input data than the copy control information of the input data does.

    摘要翻译: 一种用于更新复制控制信息的装置和方法。 该装置和方法可以用用户定义的复制控制信息来更新输入数据的复制控制信息。 该装置包括:复制控制信息检测单元,其从输入数据检测复制控制信息; 复制控制信息输入单元,其从用户接收用户定义的复制控制信息; 以及复制控制信息更新单元,其利用用户定义的复制控制信息更新输入数据的复制控制信息。 只有当用户定义的复制控制信息比输入的复制控制信息对复制输入数据施加更严格的限制时,复制控制信息更新单元可以用用户定义的复制控制信息来更新输入数据的复制控制信息 数据确实。

    Method of assigning user keys for broadcast encryption
    5.
    发明申请
    Method of assigning user keys for broadcast encryption 审中-公开
    分配广播加密用户密钥的方法

    公开(公告)号:US20050169481A1

    公开(公告)日:2005-08-04

    申请号:US11004932

    申请日:2004-12-07

    IPC分类号: H04L9/08 H04L9/00 H04N7/167

    摘要: A method of assigning user keys for broadcast encryption. According to the method, at least one unit tree in which grandparent nodes, parent nodes, and son nodes are hierarchically connected is created. User keys created to identify lower-level nodes connected to all nodes of the tree are assigned as first user keys of the nodes for all nodes of the tree, and node identification user keys of the son nodes except for the son node included in the unit tree among node identification user keys that identifies son nodes included in unit trees are assigned as second user keys of the son nodes.

    摘要翻译: 分配用于广播加密的用户密钥的方法。 根据该方法,创建其中祖父节点,父节点和子节点分层连接的至少一个单位树。 创建用于识别连接到树的所有节点的下级节点的用户密钥被分配为树的所有节点的节点的第一用户密钥,以及除了包括在该单元中的子节点之外的子节点的节点标识用户密钥 识别单位树中包含的子节点的节点识别用户密钥之间的树被分配为子节点的第二用户密钥。

    Method of copying and reproducing data from storage medium
    6.
    发明授权
    Method of copying and reproducing data from storage medium 有权
    从存储介质复制和再现数据的方法

    公开(公告)号:US07874004B2

    公开(公告)日:2011-01-18

    申请号:US11010280

    申请日:2004-12-14

    IPC分类号: G06F7/04

    摘要: Provided is a method of copying data stored in a first storage medium to a second storage medium. The method includes recording the encrypted data stored in the first storage medium on the second storage medium; reproducing a first content key, which is used to encrypt the encrypted data, using a first drive into which the first storage medium is loaded; encrypting the first content key; sending the encrypted first content key to a second drive into which the second storage medium is loaded; and recording the encrypted first content key on the second storage medium. In this method, encrypted data stored in a first storage medium is sent to a second storage medium via a host without decrypting the encrypted data, thereby preventing the data from being hacked or being accessed by unauthorized users and increasing a speed of copying the encrypted data.

    摘要翻译: 提供了将存储在第一存储介质中的数据复制到第二存储介质的方法。 该方法包括将存储在第一存储介质中的加密数据记录在第二存储介质上; 使用加载有第一存储介质的第一驱动器再现用于加密加密数据的第一内容密钥; 加密第一内容密钥; 将加密的第一内容密钥发送到第二驱动器,第二驱动器装入第二存储介质; 以及将加密的第一内容密钥记录在第二存储介质上。 在该方法中,存储在第一存储介质中的加密数据经由主机被发送到第二存储介质,而不对加密的数据进行解密,从而防止数据被未经授权的用户入侵或被访问,并增加复制加密数据的速度 。

    Method and apparatus for restriction use of storage medium using user key
    7.
    发明申请
    Method and apparatus for restriction use of storage medium using user key 失效
    使用用户密钥限制使用存储介质的方法和装置

    公开(公告)号:US20050259816A1

    公开(公告)日:2005-11-24

    申请号:US10953579

    申请日:2004-09-30

    IPC分类号: G11B20/10 G11B20/00 H04L9/00

    摘要: A method and apparatus for restricting the use of a disc are provided. In this method, first, lead-in data is read out from a loaded disc. Then, a user key is read out from a lead-in area of the disc. Thereafter, the user key undergoes authentication based on a user key received from a host. The authentication is performed by comparing a random number produced by a disc drive with a decrypted random number obtained by the disc drive decrypting a random number encrypted by the host. Accordingly, the use of the disc by an unauthorized third person is restricted, thus preventing a leakage of personal information and a protection of the copyrights of data.

    摘要翻译: 提供了限制盘的使用的方法和装置。 在该方法中,首先,从加载的盘读出导入数据。 然后,从盘的导入区域读出用户密钥。 此后,用户密钥基于从主机接收的用户密钥进行认证。 通过将由盘驱动器产生的随机数与由盘驱动器获得的解密随机数解密由主机加密的随机数进行解密的随机数进行比较来执行认证。 因此,由未经授权的第三人使用光盘是有限制的,从而防止个人信息的泄漏和对数据的版权的保护。

    Prepaid card type data recording medium, recording apparatus thereof, apparatus for providing contents, and method used for authenticating the data recording medium
    8.
    发明申请
    Prepaid card type data recording medium, recording apparatus thereof, apparatus for providing contents, and method used for authenticating the data recording medium 审中-公开
    预付卡类型数据记录介质,其记录装置,用于提供内容的装置和用于认证数据记录介质的方法

    公开(公告)号:US20050169472A1

    公开(公告)日:2005-08-04

    申请号:US11002249

    申请日:2004-12-03

    IPC分类号: G06Q30/00 H04N7/167

    摘要: A data recording medium, a recording apparatus thereof, and an apparatus for providing contents having a function of securing personal anonymity similar to a prepaid card. The prepaid card type data recording medium includes a control information area on which is recorded coupon ID information for identifying the data recording medium and representing the authority for recording contents. In addition, marginal capacity information for indicating the maximum downloadable capacity of contents may further be recorded on the control information area. The apparatus for providing contents includes an authentication unit for authenticating personal identification information, and a contents upload unit for uploading predetermined contents to the data recording medium when the authentication is successful in the authentication unit. In addition, the apparatus for providing contents further includes an information DB unit which stores marginal capacity information indicating the marginal capacity of contents to be downloaded to the data recording medium according to the coupon ID information. The authentication unit determines whether to upload the predetermined contents by referring to the information DB. Blueray disc, the next generation DVD, can be used in a mobile phone or PDA as a prepaid card type data recording medium.

    摘要翻译: 一种数据记录介质,其记录装置和用于提供具有类似于预付卡的个人匿名保护功能的内容的装置。 预付卡类型数据记录介质包括控制信息区,其上记录有用于识别数据记录介质并表示记录内容​​的权限的优惠券ID信息。 此外,用于指示内容的最大可下载容量的边缘容量信息可以进一步记录在控制信息区域上。 用于提供内容的装置包括用于认证个人识别信息的认证单元和用于在认证单元中认证成功时将预定内容上传到数据记录介质的内容上载单元。 此外,用于提供内容的装置还包括信息DB单元,其根据优惠券ID信息存储指示要下载到数据记录介质的内容的边际容量的边际容量信息。 认证单元通过参考信息DB来确定是否上传预定内容。 Blueray光盘,下一代DVD,可以在手机或PDA中用作预付卡类型的数据记录介质。

    Method of copying and reproducing data from storage medium
    9.
    发明申请
    Method of copying and reproducing data from storage medium 有权
    从存储介质复制和再现数据的方法

    公开(公告)号:US20050154907A1

    公开(公告)日:2005-07-14

    申请号:US11010280

    申请日:2004-12-14

    摘要: Provided is a method of copying data stored in a first storage medium to a second storage medium. The method includes recording the encrypted data stored in the first storage medium on the second storage medium; reproducing a first content key, which is used to encrypt the encrypted data, using a first drive into which the first storage medium is loaded; encrypting the first content key; sending the encrypted first content key to a second drive into which the second storage medium is loaded; and recording the encrypted first content key on the second storage medium. In this method, encrypted data stored in a first storage medium is sent to a second storage medium via a host without decrypting the encrypted data, thereby preventing the data from being hacked or being accessed by unauthorized users and increasing a speed of copying the encrypted data.

    摘要翻译: 提供了将存储在第一存储介质中的数据复制到第二存储介质的方法。 该方法包括将存储在第一存储介质中的加密数据记录在第二存储介质上; 使用加载有第一存储介质的第一驱动器再现用于加密加密数据的第一内容密钥; 加密第一内容密钥; 将加密的第一内容密钥发送到第二驱动器,第二驱动器装入第二存储介质; 以及将加密的第一内容密钥记录在第二存储介质上。 在该方法中,存储在第一存储介质中的加密数据经由主机被发送到第二存储介质,而不对加密的数据进行解密,从而防止数据被未经授权的用户入侵或被访问,并增加复制加密数据的速度 。

    Method of recording and/or reproducing data under control of domain management system
    10.
    发明授权
    Method of recording and/or reproducing data under control of domain management system 有权
    在域管理系统的控制下记录和/或再现数据的方法

    公开(公告)号:US07802312B2

    公开(公告)日:2010-09-21

    申请号:US11047780

    申请日:2005-02-02

    IPC分类号: G06F7/04 G06F17/30 H04N7/16

    摘要: Provided are a method of recording/reproducing data under control of a domain management system. The method includes extracting, from the write command, domain management information regarding the predetermined domain and contents, and copy control information specifying an extent of copying the contents within the predetermined domain; recording the extracted domain management information on the storage medium; generating a domain-bound flag that is used to determine whether the recording apparatus which records the contents on a storage medium is present in the predetermined domain, based on the extracted copy control information; and recording the domain-bound flag and the contents on the storage medium. Accordingly, it is possible to record contents, recording of which is limited within a predetermined domain, on a storage medium outside a slave under control of a domain management system, while preventing the contents from being reproduced within other domains.

    摘要翻译: 提供了一种在域管理系统的控制下记录/再现数据的方法。 该方法包括从写命令中提取关于预定域和内容的域管理信息,以及指定在预定域内复制内容的程度的复制控制信息; 将所提取的域管理信息记录在存储介质上; 生成用于确定在存储介质上记录内容的记录装置是否存在于预定域中的域绑定标志,基于提取的复制控制信息; 并将域绑定标志和内容记录在存储介质上。 因此,可以在域管理系统的控制下将其记录限制在预定域内的内容记录在从机外部的存储介质上,同时防止在其他域内再现内容。