发明名称 Digital signing policy
摘要 Techniques relating to directed digital signing policy are described. In one instance, a system includes means for storing a document as a plurality of logical parts. The system also includes means for establishing a document configuration when a digital signature is applied to the document, and means for indicating whether the document configuration is subsequently altered.
申请公布号 US8560853(B2) 申请公布日期 2013.10.15
申请号 US20050223255 申请日期 2005.09.09
申请人 DE MELLO MARCIO;DHALLA MAHMOOD A.;MICROSOFT CORPORATION 发明人 DE MELLO MARCIO;DHALLA MAHMOOD A.
分类号 G06F21/00 主分类号 G06F21/00
代理机构 代理人
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