Invention Grant
- Patent Title: Content encryption key management
- Patent Title (中): 内容加密密钥管理
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Application No.: US13526325Application Date: 2012-06-18
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Publication No.: US09276741B2Publication Date: 2016-03-01
- Inventor: Siddharth Mantri , David E. W. Mercer , Ajay S. Kang
- Applicant: Siddharth Mantri , David E. W. Mercer , Ajay S. Kang
- Applicant Address: US WA Redmond
- Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
- Current Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
- Current Assignee Address: US WA Redmond
- Agent Timothy Churna; Judy Yee; Micky Minhas
- Main IPC: H04L9/00
- IPC: H04L9/00 ; H04L9/08 ; G06F21/10 ; H04L29/06 ; H04N21/258 ; H04N21/266 ; H04N21/8352 ; H04N21/478

Abstract:
Systems and methods for managing a content encryption key and a seed to generate the content encryption key are provided. In one example, a method may include receiving a request for a content encryption key at a content encryption key service. The request includes a requesting entity fingerprint that corresponds to a requesting entity and a seed identifier that corresponds to a seed. The seed identifier is mapped to the seed and the requesting entity fingerprint mapped to a corresponding seed permission. If the seed permission entitles the requesting entity to receive the content encryption key, the key is derived using the seed and provided to the requesting entity.
Public/Granted literature
- US20130266138A1 CONTENT ENCRYPTION KEY MANAGEMENT Public/Granted day:2013-10-10
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