System and method for protecting digital contents with digital rights management (DRM)
    1.
    发明授权
    System and method for protecting digital contents with digital rights management (DRM) 有权
    使用数字版权管理(DRM)保护数字内容的系统和方法

    公开(公告)号:US09213809B2

    公开(公告)日:2015-12-15

    申请号:US14115013

    申请日:2012-04-23

    IPC分类号: G06F21/10 H04L29/06

    CPC分类号: G06F21/10 H04L63/0428

    摘要: An approach for protecting digital contents includes a content delivery phase wherein a client stores digital contents or retrieves them in streaming, transmits to a user device the digital content in a protected format along with an enabling code for enabling the user device to access or read the protected digital content. The approach includes a key generation phase in a DRM (Digital Right Management) server which derives at least one key for encrypting the digital contents. A key transmission phase involves the derived key being transmitted from the DRM server to the client. For decrypting the digital content, the user device requests the key from the DRM server, with the request including a key identification defined by the enabling code transmitted by the client to the user device which is used by the DRM server to derive the key for the user device.

    摘要翻译: 用于保护数字内容的方法包括内容传送阶段,其中客户端存储数字内容或以流式方式检索它们,以受保护格式向用户设备发送数字内容以及启用代码,以使得用户设备能够访问或读取 受保护的数字内容。 该方法包括DRM(数字权限管理)服务器中的密钥生成阶段,其导出用于加密数字内容的至少一个密钥。 密钥传输阶段涉及派生密钥从DRM服务器发送到客户端。 为了解密数字内容,用户设备从DRM服务器请求密钥,其中请求包括由客户端向用户设备发送的使能代码定义的密钥标识,该密钥标识由DRM服务器使用以导出用于 用户设备。

    SYSTEM AND METHOD FOR PROTECTING DIGITAL CONTENTS WITH DIGITAL RIGHTS MANAGEMENT (DRM)
    2.
    发明申请
    SYSTEM AND METHOD FOR PROTECTING DIGITAL CONTENTS WITH DIGITAL RIGHTS MANAGEMENT (DRM) 有权
    用数字权限管理(DRM)保护数字内容的系统和方法

    公开(公告)号:US20140068264A1

    公开(公告)日:2014-03-06

    申请号:US14115013

    申请日:2012-04-23

    IPC分类号: H04L29/06

    CPC分类号: G06F21/10 H04L63/0428

    摘要: An approach for protecting digital contents includes a content delivery phase wherein a client stores digital contents or retrieves them in streaming, transmits to a user device the digital content in a protected format along with an enabling code for enabling the user device to access or read the protected digital content. The approach includes a key generation phase in a DRM (Digital Right Management) server which derives at least one key for encrypting the digital contents. A key transmission phase involves the derived key being transmitted from the DRM server to the client. For decrypting the digital content, the user device requests the key from the DRM server, with the request including a key identification defined by the enabling code transmitted by the client to the user device which is used by the DRM server to derive the key for the user device.

    摘要翻译: 用于保护数字内容的方法包括内容传送阶段,其中客户端存储数字内容或以流式方式检索它们,以受保护格式向用户设备发送数字内容以及启用代码,以使得用户设备能够访问或读取 受保护的数字内容。 该方法包括DRM(数字权限管理)服务器中的密钥生成阶段,其导出用于加密数字内容的至少一个密钥。 密钥传输阶段涉及派生密钥从DRM服务器发送到客户端。 为了解密数字内容,用户设备从DRM服务器请求密钥,其中请求包括由客户端向用户设备发送的使能代码定义的密钥标识,该密钥标识由DRM服务器使用以导出用于 用户设备。

    METHOD FOR PLAYING DIGITAL CONTENTS PROTECTED WITH A DRM (DIGITAL RIGHT MANAGEMENT) SCHEME AND CORRESPONDING SYSTEM
    3.
    发明申请
    METHOD FOR PLAYING DIGITAL CONTENTS PROTECTED WITH A DRM (DIGITAL RIGHT MANAGEMENT) SCHEME AND CORRESPONDING SYSTEM 审中-公开
    用DRM(数字权限管理)方案和对应系统播放数字内容的方法

    公开(公告)号:US20120284802A1

    公开(公告)日:2012-11-08

    申请号:US13099112

    申请日:2011-05-02

    IPC分类号: G06F21/24 G06F15/16

    CPC分类号: G06F21/10 G06F2221/0728

    摘要: The method and system are for playing digital contents protected by a DRM scheme, wherein the digital contents are stored in a server and downloaded or streamed to a user device. The approach includes executing a DRM application inside the user device implementing a proxy between the server and a native player of the user device, and connecting the DRM proxy application to the server, selecting a digital content to be downloaded and retrieving a corresponding remote playlist. Also, the approach includes transforming the remote playlist into a local playlist having a format readable from the native player and executing a plurality of local packets of the local playlist inside the native player. Executing the local playlist includes, for each packet, requesting a corresponding remote packet from the DRM proxy application to the server, returning the remote packet to the DRM proxy application, acquiring a license to access the remote packet, accessing the remote packet in the DRM proxy and returning the accessed packet to the native player as a local packet to be displayed.

    摘要翻译: 该方法和系统用于播放由DRM方案保护的数字内容,其中数字内容被存储在服务器中并被下载或流式传输到用户设备。 该方法包括在用户设备内部执行DRM应用,实现服务器与用户设备的本地播放器之间的代理,并将DRM代理应用连接到服务器,选择要下载的数字内容并检索相应的远程播放列表。 此外,该方法包括将远程播放列表转换成具有可从本地播放器读取的格式的本地播放列表,并且在本地播放器内部执行本地播放列表的多个本地分组。 对于每个分组,执行本地播放列表包括从DRM代理应用向服务器请求相应的远程分组,将远程分组返回到DRM代理应用,获取访问远程分组的许可证,访问DRM中的远程分组 代理并将所访问的分组返回到本地播放器作为要显示的本地分组。

    METHOD FOR PLAYING DIGITAL CONTENTS PROTECTED WITH A DRM (DIGITAL RIGHTS MANAGEMENT) SCHEME AND CORRESPONDING SYSTEM
    4.
    发明申请
    METHOD FOR PLAYING DIGITAL CONTENTS PROTECTED WITH A DRM (DIGITAL RIGHTS MANAGEMENT) SCHEME AND CORRESPONDING SYSTEM 有权
    用DRM(数字权限管理)方案和对应系统播放数字内容的方法

    公开(公告)号:US20140075582A1

    公开(公告)日:2014-03-13

    申请号:US14115020

    申请日:2012-04-23

    IPC分类号: H04L29/06

    摘要: The method and system are for playing digital contents protected by a DRM scheme, wherein the digital contents are stored in a server and downloaded or streamed to a user device. The approach includes executing a DRM application inside the user device implementing a proxy between the server and a native player of the user device, and connecting the DRM proxy application to the server, selecting a digital content to be downloaded and retrieving a corresponding remote playlist. Also, the approach includes transforming the remote playlist into a local playlist having a format readable from the native player and executing a plurality of local packets of the local playlist inside the native player.

    摘要翻译: 该方法和系统用于播放由DRM方案保护的数字内容,其中数字内容被存储在服务器中并被下载或流式传输到用户设备。 该方法包括在用户设备内部执行DRM应用,实现服务器与用户设备的本地播放器之间的代理,并将DRM代理应用连接到服务器,选择要下载的数字内容并检索相应的远程播放列表。 此外,该方法包括将远程播放列表转换成具有可从本地播放器读取的格式的本地播放列表,并且在本地播放器内部执行本地播放列表的多个本地分组。

    Method for playing digital contents projected with a DRM (digital rights management) scheme and corresponding system
    5.
    发明授权
    Method for playing digital contents projected with a DRM (digital rights management) scheme and corresponding system 有权
    使用DRM(数字版权管理)方案和相应系统播放数字内容的方法

    公开(公告)号:US09202024B2

    公开(公告)日:2015-12-01

    申请号:US14115020

    申请日:2012-04-23

    IPC分类号: G06F21/12 H04L29/06 G06F21/10

    摘要: The method and system are for playing digital contents protected by a DRM scheme, wherein the digital contents are stored in a server and downloaded or streamed to a user device. The approach includes executing a DRM application inside the user device implementing a proxy between the server and a native player of the user device, and connecting the DRM proxy application to the server, selecting a digital content to be downloaded and retrieving a corresponding remote playlist. Also, the approach includes transforming the remote playlist into a local playlist having a format readable from the native player and executing a plurality of local packets of the local playlist inside the native player.

    摘要翻译: 该方法和系统用于播放由DRM方案保护的数字内容,其中数字内容被存储在服务器中并被下载或流式传输到用户设备。 该方法包括在用户设备内部执行DRM应用,实现服务器与用户设备的本地播放器之间的代理,并将DRM代理应用连接到服务器,选择要下载的数字内容并检索相应的远程播放列表。 此外,该方法包括将远程播放列表转换成具有可从本地播放器读取的格式的本地播放列表,并且在本地播放器内部执行本地播放列表的多个本地分组。