发明名称 |
Encrypted data digital pay television transmission having first modulation random calculation numbers transmitted second module recovering random numbers and new values message generated. |
摘要 |
The transmission between a first (25) and second module (26) has a calculation (35) of random numbers. The value is transmitted to the second module (38). In the second module the random numbers are recovered (32) and a new value generated (30). Values of the message parts (M) are then found.
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申请公布号 |
FR2809269(A1) |
申请公布日期 |
2001.11.23 |
申请号 |
FR20000006205 |
申请日期 |
2000.05.16 |
申请人 |
CANAL + TECHNOLOGIES |
发明人 |
DAUVOIS JEAN LUC |
分类号 |
H04L9/30;H04N5/00;H04N7/16;H04N7/167;(IPC1-7):H04N7/167;H04L9/22 |
主分类号 |
H04L9/30 |
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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