发明名称 Revocation information management
摘要 Systems and/or methods ("tools") are described that enable encrypted media files to be sent without revocation lists while permitting the encrypted media files to be passed to trusted entities. The tools may also ensure continuation of protection when media files are passed between different protection systems.
申请公布号 US7634816(B2) 申请公布日期 2009.12.15
申请号 US20050202430 申请日期 2005.08.11
申请人 MICROSOFT CORPORATION 发明人 ALKOVE JAMES M.;RENERIS KEN
分类号 G06F7/04 主分类号 G06F7/04
代理机构 代理人
主权项
地址