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    • 8. 发明授权
    • Generic file protection format
    • 通用文件保护格式
    • US08397068B2
    • 2013-03-12
    • US12768752
    • 2010-04-28
    • Andrey ShurMarcio MelloPankaj KamatDan KnudsonEugene SavchenkoScott Cottrille
    • Andrey ShurMarcio MelloPankaj KamatDan KnudsonEugene SavchenkoScott Cottrille
    • H04L29/06
    • G06F21/10
    • A file may contain an unencrypted and an encrypted portion. The unencrypted portion may contain a layout section that may point to a published license, metadata, and a contents section, where the contents section is in the encrypted portion. The encrypted portion may contain the contents section which may act as a directory for one or more included files that may be compressed and stored in the encrypted portion. When the file is opened by a receiver, the receiver may read the published license and communicate with a security server to establish access rights and receive at least one key for decrypting at least a portion of the encrypted portion of the file. The receiver may then gain access to the included files.
    • 文件可能包含未加密和加密的部分。 未加密部分可以包含可以指向已发布的许可证,元数据和内容部分的布局部分,其中内容部分在加密部分中。 加密部分可以包含内容部分,该内容部分可以充当可以被压缩并存储在加密部分中的一个或多个所包含的文件的目录。 当文件由接收者打开时,接收者可以读取所发布的许可证并与安全服务器进行通信以建立访问权限,并且接收用于对文件的加密部分的至少一部分进行解密的至少一个密钥。 然后,接收器可以访问所包含的文件。