DOWNLOADABLE CONDITIONAL ACCESS SYSTEM FOR EFFICIENTLY DETECTING ILLEGALLY DUPLICATED DCAS TERMINAL BY POSITIONING A TRUSTED AUTHORITY SERVER INSIDE OF MULTIPLE SYSTEM OPERATOR SERVER

摘要

PURPOSE: A downloadable conditional access system for efficiently detecting illegally duplicated DCAS(Downloadable Conditional Access System) terminal is provided to dispersively arrange TA(Trusted Authority) server, thereby effectively detecting a duplicated SM.;CONSTITUTION: An MSO(Multiple System Operator) server(120) stores SM(Secure Micro) identifier. If the application of joining is received form DCAS(Downloadable Conditional Access System) terminal(130), the MSO server request registration of the SM identifier of the DCAS terminal, service provider identifier, and OTP(One Time Password) data to CA(Conditional Access) server(110). The CA server connectively stores the SM identifier, a vendor identifier, and the OTP data.;COPYRIGHT KIPO 2010