发明名称 |
METHOD FOR ACTIVATING AND CARRYING OUT SECURE FUNCTIONS IN A COMMUNICATIONS SYSTEM |
摘要 |
<p>In a communication system having a function or performance feature to be protected, the periodic transmission of encoded interrogation information is initiated by a security routine to ensure that the function or performance feature is protected. The protected function is activated and further-executed only if reply information which is also encoded is received from a connected crypto-unit in a predetermined time span after a transmission of the interrogation information.</p> |
申请公布号 |
SG79926(A1) |
申请公布日期 |
2001.04.17 |
申请号 |
SG19960011624 |
申请日期 |
1996.12.11 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LUKAS, GUENTER;RAMBERGER, FRIEDRICH;GIESE, PETER;SPAHL, SIEGFRIED |
分类号 |
G06F1/00;G06F12/14;G06F21/34;G06F21/62;H04L29/06;H04M3/22;H04M3/42;H04Q3/545;(IPC1-7):H04L9/00 |
主分类号 |
G06F1/00 |
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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