发明名称 |
Method for enabling direct encrypted communication between two terminals of a mobile radio network, and corresponding station and terminal facilities |
摘要 |
A method for enabling encrypted communication to be performed directly in a single hop or merely directly between two terminals of a mobile radio network by satellite and/or of the GSM/DCS type, after one of said terminals has called via a fixed radio station of the network. After a first encryption stage, performed in conventional manner, a cipher key is simultaneously generated by the identity card associated with the calling terminal and by the network control structure for encrypting/decrypting data transmitted over the radio link between said calling terminal and the station. This cipher key is then stored in a memory of the station so as to be transmitted to the called terminal when a radio link is set up between said station and said called terminal for the call requested by the calling terminal, and the key is used for the purpose of encrypting/decrypting the data interchanged between the calling and called terminals.
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申请公布号 |
US6137885(A) |
申请公布日期 |
2000.10.24 |
申请号 |
US19980081550 |
申请日期 |
1998.05.20 |
申请人 |
ALCATEL |
发明人 |
TOTARO, ANTOINE;FLORES, ERICK |
分类号 |
H04L9/08;H04B7/185;H04W88/02;(IPC1-7):H04K1/00 |
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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