Method for realizing distributing asymmetric video conference safety system
Title：
Method for realizing distributing asymmetric video conference safety system
Application Number：
 200610033703
Application Date：
 2006/02/16
Announcement Date：
 2006/08/16
Pub. Date：
Publication Number：
 1819649
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 94[China|shenzhen]
IPC：
 H04N 7/15, H04N 7/16, H04L 29/00
Applicant(s)：
 Shenzhen Graduated School, Tsinghua Univ.
Inventor(s)：
 Liu Xiaodong, Guo Xingfeng
Key Words：
 distributing asymmetric video conference, safety system
Abstract：
 A realizing method of the publicized asymmetrical video meeting safety system, including: a. creates the smallest spanning tree of the application layer multicast between the source end and the user end, the source end machine broadcast to the user¡¯s machine that the public key information publicize and memory in every user¡¯s machine, memory the public key of its direct sub-node, create the data encrypted secret key (DSK) b. the source end machine encrypt the DSK and send to every direct sub-node machine by the saving public key, every sub-node use its private key to riddle secret, use the public key of its sub-node encrypt and send to its sub-node after get the DSK, so analogy, until all the nodes get its DSK c. encrypt and send data. Using the publicized secret key managing mode, publicize and memory the public key information, avoid the server capability bottle-neck and simple node trouble of the centralized secret key managing project, solve the safety hidden trouble.
Claim：
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PCT：
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