发明名称 Rendering digital content in an encrypted rights-protected form
摘要 A rendering application determines that digital content is in an encrypted rights-protected form and invokes a Digital Rights Management (DRM) system which includes a license store having at least one digital license stored therein. Each license corresponds to a piece of digital content and includes a decryption key (KD) for decrypting the corresponding digital content. The DRM system locates each license in the license store corresponding to the digital content to be rendered, selects one of the located licenses, obtains (KD) from the selected license, decrypts the digital content with (KD), and returns the decrypted digital content to the rendering application for actual rendering.
申请公布号 US6775655(B1) 申请公布日期 2004.08.10
申请号 US19990449106 申请日期 1999.11.24
申请人 MICROSOFT CORPORATION 发明人 PEINADO MARCUS;MANFERDELLI JOHN L.;BELL JEFFREY R. C.
分类号 G06F1/00;G06F12/14;G06F21/00;G06F21/24;G06Q30/00;H04L9/08;H04L9/32;H04L29/06;(IPC1-7):G06F17/60 主分类号 G06F1/00
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