2024年5月5日发(作者：)

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专利名称：Downloadable conditional access system,

channel setting method and message

structure for 2-way communication between

terminal and authentication server in the

downloadable conditional access system

发明人：Soon Choul Kim,O Hyung Kwon,Soo In Lee

申请号：US12551453

申请日：20090831

公开号：US08549302B2

公开日：20131001

专利附图：

摘要：Provided are a Downloadable Conditional Access System (DCAS), and a channel

setting method and a message format for a 2-way communication between a terminal

and an authentication server in the DCAS. The DCAS may include: a verification unit to

verify an electronic signature and an integrity with respect to a message received from

the authentication server; an extraction unit to extract network access information of the

authentication server from the message in which the electronic signature and the

integrity are verified; and a channel setting unit to set a communication channel with the

authentication server based on the extracted network access information.

申请人：Soon Choul Kim,O Hyung Kwon,Soo In Lee

地址：Daejeon KR,Daejeon KR,Deajeon KR

国籍：KR,KR,KR

代理机构：Blakely Sokoloff Taylor & Zafman

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