发明申请
US20070088945A1 Authentication server, method and system for detecting unauthorized terminal
有权
用于检测未经授权的终端的认证服务器,方法和系统
- 专利标题: Authentication server, method and system for detecting unauthorized terminal
- 专利标题(中): 用于检测未经授权的终端的认证服务器,方法和系统
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申请号: US10577435申请日: 2004-12-20
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公开(公告)号: US20070088945A1公开(公告)日: 2007-04-19
- 发明人: Motoji Ohmori , Shunji Ohara , Takashi Katayama
- 申请人: Motoji Ohmori , Shunji Ohara , Takashi Katayama
- 优先权: JP2004-009861 20040116
- 国际申请: PCT/JP04/19488 WO 20041220
- 主分类号: H04L9/00
- IPC分类号: H04L9/00
摘要:
A DVD terminal (20) makes a request for sending a sub-content to an authentication server (40) (in this case, attaches the “model name and serial number” of the DVD terminal (20)) (S302). The authentication server (40) generates a random number R (S304) and sends it to the DVD terminal (20) (S306). The DVD terminal (20) reads a terminal key and a terminal ID that are stored in a terminal information memory unit (25), decrypts the received random number R using a terminal key (SK_X) (S308) and sends this and the terminal ID (ID_X) to the authentication server (40) (S310). The authentication server (40) verifies the random number R and the terminal ID that are received from the DVD terminal (20) and encrypted, and judges whether the DVD terminal (20) is the authenticated terminal or not (S312).
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