发明名称 |
SIGNING AND AUTHENTICATION DEVICES AND PROCESSES AND CORRESPONDING PRODUCTS, NOTABLY FOR DVB/MPEG MHP DIGITAL STREAMS |
摘要 |
The present invention concerns a device (11) and a process for signing digital streams (10), each of them comprising contents, related to audiovisual information, and a signaling. The device applies encrypting to selectively determined descriptors of the signaling, called authenticated descriptors, to obtain signature. The invention also concerns corresponding authentication device (21) and process. Application to authentication of DVB/MPEG digital streams, notably for MHP.
|
申请公布号 |
WO03098895(A1) |
申请公布日期 |
2003.11.27 |
申请号 |
WO2002EP14897 |
申请日期 |
2002.11.08 |
申请人 |
THOMSON LICENSING S.A.;SCHAEFER, RALF;DURAND, ALAIN;LESENNE, LAURENT;PASQUIER, FREDERIC |
发明人 |
SCHAEFER, RALF;DURAND, ALAIN;LESENNE, LAURENT;PASQUIER, FREDERIC |
分类号 |
H04N7/08;G09C1/00;H04L9/18;H04L9/32;H04L29/06;H04N7/081;H04N7/173;(IPC1-7):H04L29/06;H04N7/24;H04N7/167 |
主分类号 |
H04N7/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|