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Method for authenticating a first object to at least one further object, especially the vehicle to at least one key

  • US 20040054934A1
  • Filed: 06/25/2003
  • Published: 03/18/2004
  • Est. Priority Date: 07/04/2002
  • Status: Abandoned Application
First Claim
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1. Method for authenticating a first object to at least one further object, in particular a vehicle to a key, comprising the steps of:

  • a) transmitting an item of information unidirectionally between the first object and the at least one further object, b) calculating a computation result in the relevant receiving object from parts of the transmitted information, c) comparing the calculated computation result with a computation result transferred with the information, and d) if there is a match authenticating the vehicle, declaring the computation result as invalid for further transmissions.

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