发明名称 Digital broadcasting system and contents protection method using the same
摘要 An authentication method for protecting content transmitted in a digital cable broadcasting system including a headend, a security module and a host. Upon initiation of the authentication method, authentication information is transmitted between the security module and the host. If either the host or the security module authentication information is determined to be invalid the authentication procedure is ended.
申请公布号 US2005198502(A1) 申请公布日期 2005.09.08
申请号 US20050068877 申请日期 2005.03.02
申请人 CHA SANG H.;KIM IN M. 发明人 CHA SANG H.;KIM IN M.
分类号 H04N7/16;H04L9/00;(IPC1-7):H04L9/00 主分类号 H04N7/16
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