发明名称 |
USER BASED CONTENT KEY ENCRYPTION FOR A DRM SYSTEM |
摘要 |
A digital rights management (DRM) system, device and method having an authorized domain (12) for managing digital media, wherein the authorized domain or entity such as a rights issuer utilizes user based content key encryption. In one aspect, the system includes plurality of interconnected devices (16) that comprise: a storage system for storing a user key (19) from a user belonging to the authorized domain; a system for downloading content (13) encrypted with a content key (32); a system for downloading a content key encrypted with the user key; a decryption system (28) for decrypting the encrypted content key with the user key; and a system (28) for decrypting the encrypted content with the decrypted content key. |
申请公布号 |
EP2993604(A2) |
申请公布日期 |
2016.03.09 |
申请号 |
EP20150181708 |
申请日期 |
2005.10.06 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
VAN LOENEN, ARNO KASPER;VAN DEN HEUVEL, SEBASTIAAN ANTONIUS FRANCISCUS;ZWART, SJOERD |
分类号 |
G06F21/10;G06F21/34;G06F21/62;H04N7/167 |
主分类号 |
G06F21/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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