发明申请
US20050198502A1 Digital broadcasting system and contents protection method using the same
审中-公开
数字广播系统及内容保护方法采用相同方式
- 专利标题： Digital broadcasting system and contents protection method using the same
- 专利标题（中）： 数字广播系统及内容保护方法采用相同方式
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申请号： US11068877申请日： 2005-03-02
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公开(公告)号： US20050198502A1公开(公告)日： 2005-09-08
- 发明人: Sang Cha , In Kim
- 申请人： Sang Cha , In Kim
- 优先权： KR2004-15172 20040305
- 主分类号： H04N7/16
- IPC分类号： H04N7/16 ; H04L9/00
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.
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