发明名称 |
Dispositif de sûreté contre le vol à codage électronique d'autorisation d'utilisation pour véhicule. |
摘要 |
The invention provides a vehicle security device with an electronic use-authorization coding arrangement for identifying authorized access to the vehicle. The vehicle security device utilizes an encryption method which operates on the basis of a one-way function, so that it is only absolutely necessary to store secret code information at the key end, specifically in the form of different inverse images of a one-way function. Only the one-way function values corresponding to these inverse images need be present at the vehicle end, a reading-out of which does not permit unauthorized manufacture of a copied key because of the virtual irreversibility of the one-way function. |
申请公布号 |
FR2718090(B1) |
申请公布日期 |
1998.02.13 |
申请号 |
FR19950003765 |
申请日期 |
1995.03.30 |
申请人 |
MERCEDES BENZ AG |
发明人 |
BRINKMEYER HORST;DAISS MICHAEL;SCHWEGLER GUNTER;KRUGER BERTOLD |
分类号 |
E05B49/00;B60R25/04;G06F12/14;G06F21/24;G07C9/00;G09C1/00;H04L9/00;H04L9/10;H04L9/32 |
主分类号 |
E05B49/00 |
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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