METHOD FOR PROVIDING SECURE PROTOCOL IN EXCHANGEABLE CONDITIONAL ACCESS SYSTEM

PURPOSE: A method for providing a secure protocol in an exchangeable conditional access system is provided to supply a simple security algorithm through a security protocol, thereby effectively reducing costs and time for identifying an illegally coped set-top box. CONSTITUTION: An XCAS head end(110...

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Bibliographic Details
Main Authors SHIN, SEOG KYOON, LEE, SANG YL
Format Patent
LanguageEnglish
Korean
Published 20.07.2011
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:PURPOSE: A method for providing a secure protocol in an exchangeable conditional access system is provided to supply a simple security algorithm through a security protocol, thereby effectively reducing costs and time for identifying an illegally coped set-top box. CONSTITUTION: An XCAS head end(110) authenticates a set-top box before a CAS client is provided. A security module(121) is authenticated with a TP(Transport Processor)(122) to obtain the IDs of the TP and the security module. The XCAS head end receives and authenticates a paring authentication request message from the security module. A paring authentication result message including a seed value is transmitted to the security module(140). A shared key is generated to use confidential communication between the security module and the TP(150).
Bibliography:Application Number: KR20100003238