发明名称 |
Computational efficiently obtaining a control word in a receiver using transformations |
摘要 |
The invention provides a receiver, a smartcard and a conditional access system for securely obtaining a control word using an entitlement transform tree, wherein intermediate results are cached to improve computational efficiency. |
申请公布号 |
EP2360918(A1) |
申请公布日期 |
2011.08.24 |
申请号 |
EP20100196221 |
申请日期 |
2010.12.21 |
申请人 |
IRDETO B.V. |
发明人 |
BENEDETTI, ETTORE;VAN FOREEST, ARNOUD EVERT |
分类号 |
H04L9/08;H04N21/266;H04N21/418;H04N21/4623 |
主分类号 |
H04L9/08 |
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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