Invention Grant
- Patent Title: Separating keys and policy for consuming content
- Patent Title (中): 分离用于消费内容的密钥和策略
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Application No.: US12105260Application Date: 2008-04-17
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Publication No.: US08353049B2Publication Date: 2013-01-08
- Inventor: Dennis N. Bromley , Quintin S. Burns
- Applicant: Dennis N. Bromley , Quintin S. Burns
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Wolfe-SBMC
- Main IPC: H04L29/06
- IPC: H04L29/06

Abstract:
In accordance with one or more aspects of the separating keys and policy for consuming content, content has a corresponding leaf license, and the leaf license has one or more associated root policy addenda. Each root policy addenda includes policy identifying when it is permissible to decrypt and consume the content, but excludes a content key to decrypt the content. The content can be decrypted and consumed only if the policy identifies that it is permissible to decrypt and consume the content.
Public/Granted literature
- US20090265561A1 Separating Keys and Policy for Consuming Content Public/Granted day:2009-10-22
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