发明名称 |
IMMOBILISATION PROTECTION SYSTEM FOR ELECTRONIC COMPONENTS |
摘要 |
<p>An electronic security system that embeds electronic immobilisation protection devices (IPDs) in electronic products and components. IPDs have controlled access to a security service provider (SSP). At power on, and periodically thereafter, the IPD sends a cryptographically secure "challenge" to the SSP. If a part has not been reported stolen, then the SSP replies with a valid cryptographically secure "response", otherwise it replies with an invalid "response". If the IPD receives an invalid "response", or when a limited time has elapsed without a "response", it renders the part inoperative. A valid "response", inside the time limit, allows the part to function normally. A stolen and recovered product can be identified and traced to its rightful owner, who contacts the SSP to re-enable the product. IPDs allow specific parts to function normally for a limited period of time, so that existing hardware, software and network resources can be utilised to communicate to the SSP.</p> |
申请公布号 |
WO9804967(A1) |
申请公布日期 |
1998.02.05 |
申请号 |
WO1997GB00241 |
申请日期 |
1997.01.28 |
申请人 |
COLLINS, PETER, DAVID;ROYER, KARL, WILLIAM;BOWYER, MARK, DAVID, JAMES |
发明人 |
COLLINS, PETER, DAVID;ROYER, KARL, WILLIAM;BOWYER, MARK, DAVID, JAMES |
分类号 |
G06F1/00;G06F21/33;G06F21/34;G06F21/74;G06F21/87;G06F21/88;G08B13/14;(IPC1-7):G06F1/00;G08B25/01 |
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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