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2. 发明申请

US20090276625A1 HIERARCHICAL BROWSING MANAGEMENT METHOD AND SYSTEM FOR DIGITAL CONTENT 审中-公开
标题翻译：数字内容的分层浏览管理方法和系统
公开(公告)号：US20090276625A1
公开(公告)日：2009-11-05
申请号：US12256122
申请日：2008-10-22
申请人： Shih-I HUANG , Po-Yuan TENG
发明人： Shih-I HUANG , Po-Yuan TENG
IPC分类号： H04L9/00 , H04L9/06
CPC分类号： H04L9/0836 , H04L9/088 , H04L63/0428 , H04L63/105 , H04L2209/60
摘要： A hierarchical browsing management method and system for a digital content are described, in which a client decrypts a part of an encrypted content corresponding to an user permission of the client according to a different decryption key. The hierarchical browsing management method includes the following steps. A document fetching unit fetches a digital content, and then loads and stores the digital content to a document server. A client sends a request for transferring the digital content to another client to the document server. A key server executes a content encryption procedure, assigns a corresponding user permission to each content object, and generates encrypted objects. The content encryption procedure is executed to generate encrypted objects and a corresponding encrypted content according to the corresponding user permission assigned to each content object. The client receives the encrypted content, executes a decryption procedure for the encrypted objects, and outputs a decrypted content.
摘要翻译：描述了用于数字内容的分级浏览管理方法和系统，其中客户端根据不同的解密密钥对与客户端的用户许可相对应的加密内容的一部分进行解密。分级浏览管理方法包括以下步骤。文档提取单元获取数字内容，然后将数字内容加载并存储到文档服务器。客户端向文档服务器发送将数字内容传送到另一个客户端的请求。密钥服务器执行内容加密过程，为每个内容对象分配相应的用户权限，并生成加密对象。执行内容加密过程以根据分配给每个内容对象的相应用户许可来生成加密对象和对应的加密内容。客户端接收加密内容，对加密对象执行解密过程，并输出解密内容。

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