发明名称 |
PROCESS FOR PROTECTING AN INFORMATION ITEM TRANSMITTED FROM A SECURITY ELEMENT TO A DECODER AND PROTECTION SYSTEM USING SUCH A PROCESS |
摘要 |
<p>The invention relates to a process for protecting an information item transmitted from a security element to a decoder. <??>The information item is protected by encrypting within the security element the information item to be transmitted to the decoder and by decrypting this information item within the decoder. <??>The invention applies to conditional-access systems. <??>A security element and a decoder using this process are also disclosed. <IMAGE></p> |
申请公布号 |
KR20060086831(A) |
申请公布日期 |
2006.08.01 |
申请号 |
KR20050128808 |
申请日期 |
2005.12.23 |
申请人 |
THOMSON |
发明人 |
CAMPINOS ARNALDO;FISCHER JEAN BERNARD |
分类号 |
G06F1/00;G09C1/00;H04H20/76;H04H60/13;H04L9/08;H04L9/10;H04L9/14;H04L9/32;H04L12/22;H04N5/00;H04N7/16;H04N7/167 |
主分类号 |
G06F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|