Method and apparatus for acquiring domain information and domain-related data
    2.
    发明授权
    Method and apparatus for acquiring domain information and domain-related data 有权
    用于获取域信息和域相关数据的方法和装置

    公开(公告)号:US08687801B2

    公开(公告)日:2014-04-01

    申请号:US11648677

    申请日:2007-01-03

    IPC分类号: H04K1/00

    摘要: Provided are a method and apparatus for acquiring data regarding a domain for the protection of digital content, and more particularly, a method and apparatus for acquiring domain information and domain-related data in which content received from an external source is converted into content that complies with a set of rules of a digital rights management (DRM) system and a license for the use of the result of the conversion is issued by receiving domain information including a domain key identifier from a domain information providing apparatus and receiving an updated domain key that is a valid domain key currently being used in a domain from a DRM object providing apparatus.

    摘要翻译: 提供了一种用于获取关于数字内容保护的域的数据的方法和装置,更具体地,涉及一种用于获取域信息和域相关数据的方法和装置,其中从外部源接收的内容被转换为符合的内容 通过从域信息提供装置接收包括域密钥标识符的域信息并接收更新的域密钥来发布数字版权管理(DRM)系统的一组规则和用于使用转换结果的许可证, 是当前在DRM对象提供装置的域中使用的有效域密钥。

    Method of packaging broadcast contents
    3.
    发明授权
    Method of packaging broadcast contents 有权
    打包播放内容的方法

    公开(公告)号:US08301571B2

    公开(公告)日:2012-10-30

    申请号:US11402981

    申请日:2006-04-13

    IPC分类号: G06F21/00

    CPC分类号: G06Q30/02

    摘要: A method of packaging broadcast contents are provided. The method includes: extracting a copy control bit from input broadcast contents and determining whether the broadcast contents will be stored after being encrypted based on the extracted copy control bit; creating usage rule information which includes an encryption method of the broadcast contents if it is determined that the broadcast contents will be stored after being encrypted; extracting the copy control bit from each new broadcast content sequentially input and detecting broadcast contents which include copy control bits indicating that the broadcast contents will be stored without being encrypted; and encrypting the input broadcast contents through the broadcast contents before the detected broadcast contents using the encryption method and packaging and storing the encrypted broadcast contents and the usage rule information. Therefore, the unauthorized copying of broadcast contents transmitted through a digital broadcast receiver can be prevented.

    摘要翻译: 提供一种封装广播内容的方法。 该方法包括:从输入广播内容中提取复制控制位,并根据所提取的复制控制位确定是否在加密之后存储广播内容; 创建使用规则信息,如果确定在加密之后将存储广播内容,则包括广播内容的加密方法; 从每个新的广播内容中提取复制控制位,顺序地输入和检测包括指示广播内容将不被加密的复制控制位的广播内容; 并且通过使用加密方法的检测到的广播内容之前的广播内容来加密输入的广播内容,并且包装和存储加密的广播内容和使用规则信息。 因此,可以防止通过数字广播接收机发送的广播内容的未经授权的复制。

    Method and apparatus for importing content
    5.
    发明申请
    Method and apparatus for importing content 有权
    导入内容的方法和装置

    公开(公告)号:US20070156599A1

    公开(公告)日:2007-07-05

    申请号:US11522437

    申请日:2006-09-18

    IPC分类号: G06Q99/00

    摘要: A method and apparatus for protecting digital content in a digital rights management (DRM) system are provided. The method includes: determining a usage rule for content included in a first content file based on usage constraint information included in the first content file; and generating a second content file complying with this usage rule. According to the method and apparatus, the security requirement of content creators and content providers can be satisfied and at the same time the requirement of content consumers for freer usage can be satisfied.

    摘要翻译: 提供了一种用于保护数字版权管理(DRM)系统中的数字内容的方法和装置。 该方法包括:基于包括在第一内容文件中的使用约束信息,确定包含在第一内容文件中的内容的使用规则; 以及生成符合该使用规则的第二内容文件。 根据该方法和装置,可以满足内容创作者和内容提供者的安全要求,同时可以满足内容消费者对于更自由使用的要求。

    Method of receiving session key in home network and method of reproducing content using the same
    7.
    发明申请
    Method of receiving session key in home network and method of reproducing content using the same 有权
    在家庭网络中接收会话密钥的方法和使用它们再现内容的方法

    公开(公告)号:US20060107051A1

    公开(公告)日:2006-05-18

    申请号:US11268647

    申请日:2005-11-08

    IPC分类号: H04L9/00

    摘要: A method of receiving a session key in a home network and a method of reproducing content using the same. The method of receiving a session key from a home server in a home network, includes: (a) whenever one of members of the home network changes, receiving and storing the session key and a session version indicating a session key generation sequence; (b) receiving a license necessary for reproducing predetermined content; and (c) determining a session key necessary for reproducing the predetermined content based on an encoding session version (ESV), which is a session version extracted from the license, and the stored session version. A home server transmits a session key and a session version to a user device whenever a subscriber to a home network changes, and the user device determines a session key using the session version, thereby performing a variety of domain administration by freely transmitting content between user devices.

    摘要翻译: 一种在家庭网络中接收会话密钥的方法以及使用该会话密钥再现内容的方法。 从家庭网络中的家庭服务器接收会话密钥的方法包括:(a)家庭网络的每个成员之一改变,接收和存储会话密钥以及指示会话密钥生成序列的会话版本; (b)接收再现预定内容所需的许可证; 以及(c)基于从许可证中提取的会话版本的编码会话版本(ESV)和所存储的会话版本,确定再现预定内容所必需的会话密钥。 家庭服务器每当家庭网络的用户改变时向用户设备发送会话密钥和会话版本,并且用户设备使用会话版本来确定会话密钥,从而通过在用户之间自由发送内容来执行各种域管理 设备。

    Method and apparatus for importing content having plurality of parts
    8.
    发明授权
    Method and apparatus for importing content having plurality of parts 有权
    用于导入具有多个部分的内容的方法和装置

    公开(公告)号:US08978154B2

    公开(公告)日:2015-03-10

    申请号:US11790158

    申请日:2007-04-24

    摘要: A digital content protection apparatus and method for digital rights management (DRM) are provided in which a content file including a plurality of content parts is imported such that a header is included which stores location information required for decoding each of the content parts. Therefore, the number of content parts constituting the content file can be recognized, and a license that is required for the use of each of the content parts can be acquired by analyzing header information without necessitating the parsing of the transport packets of the content file. Accordingly, preparation time for using content can be reduced.

    摘要翻译: 提供了一种用于数字版权管理(DRM)的数字内容保护装置和方法,其中导入包括多个内容部分的内容文件,使得包括存储对每个内容部分进行解码所需的位置信息的标题。 因此,可以识别构成内容文件的内容部分的数量,并且可以通过分析头信息来获取使用每个内容部分所需的许可证,而不需要解析内容文件的传输分组。 因此,可以减少使用内容的准备时间。

    Method and apparatus for managing digital content
    9.
    发明授权
    Method and apparatus for managing digital content 有权
    用于管理数字内容的方法和装置

    公开(公告)号:US08161296B2

    公开(公告)日:2012-04-17

    申请号:US11410029

    申请日:2006-04-25

    IPC分类号: G06F21/00

    CPC分类号: G06F21/10

    摘要: A method and apparatus for managing digital content, which can detect the leakage of an encryption key when the encryption key used for encrypting the digital content is leaked or cracked. When the encrypted digital content is decrypted by an illegal device, a module linked with the encrypted digital content is automatically driven and a digital content managing apparatus is then notified that the encrypted digital content has been decrypted by the illegal device such that the digital content managing apparatus can change the encryption key. Thus, it is possible to prevent the digital content from being continuously leaked due to the use of the same encryption key for encrypting subsequent digital content.

    摘要翻译: 一种用于管理数字内容的方法和装置,当用于加密数字内容的加密密钥泄漏或破解时,可以检测加密密钥的泄漏。 当加密的数字内容被非法设备解密时,自动驱动与加密的数字内容链接的模块,然后通知数字内容管理装置加密的数字内容已被非法设备解密,使得数字内容管理 设备可以改变加密密钥。 因此,可以防止数字内容由于使用相同的加密密钥来加密后续数字内容而不断地泄漏。