发明名称 |
Method, device, and system for secure motor vehicle remote keyless entry |
摘要 |
Methods and apparatus are provided for sending an encrypted command message from a remote keyless entry device to a receiver in a motor vehicle. The method comprises defining a key generating key within the remote keyless entry device, and using that key generating key to generate a working key. The working key is transmitted from the remote keyless entry device to the receiver during a training session without transmitting the key generating key. The working key is modified each time the remote keyless entry device is placed in the training mode. After the training session, a message encrypted with the working key can be transmitted from the remote keyless entry device to the motor vehicle receiver where the encrypted message is decrypted with the working key.
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申请公布号 |
US7231041(B2) |
申请公布日期 |
2007.06.12 |
申请号 |
US20030643436 |
申请日期 |
2003.08.19 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
FOREST THOMAS M.;UTTER THOMAS E. |
分类号 |
H04L9/00;B60R25/00;G05B9/02;G05B15/00;G05B15/02;G05B19/18;G05B21/00;G05D7/00;G07C9/00 |
主分类号 |
H04L9/00 |
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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