发明名称 |
METHOD AND APPARATUS FOR MESSAGE INTEGRITY IN A CDMA COMMUNICATION SYSTEM |
摘要 |
In a communication system (100), a method and apparatus provides for message integrity regardless of the operating version of an authentication center (198) or an interface (197) between the authentication center (198) and a mobile switching center (199). The method and apparatus include generating a cellular message encryption algorithm (CMEA) key, and generating a CMEA-key-derived integrity key (CIK) based on the CMEA key for message integrity between a mobile station and a base station. The mobile station transmits a registration message to the base station, and determines an operating version of the authentication center (198) in communication with the base station based on whether the mobile station receives a registration accepted order or some elements of an authentication vector from the base station. The CIK is generated based on the CMEA key, if the mobile station receives a valid registration accepted order from the base station.
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申请公布号 |
WO03041442(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
WO2002US35297 |
申请日期 |
2002.10.31 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
QUICK, ROY, FRANKLIN, JR.;HO, SAI, YIU, DUNCAN |
分类号 |
H04L9/08;H04L29/06;H04W12/00;H04W12/04;(IPC1-7):H04Q7/38;H04L9/06 |
主分类号 |
H04L9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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