METHOD AND CONTROL DEVICE FOR SAFEGUARDING ACCESS

A method for controlling access to a system by means of an identification (ID) transmitter, wherein the ID transmitter is authenticated by virtue of a distance between the ID transmitter and a reference point in the system being checked by transmitting a radio signal, includes receiving a first vers...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HOCKE, Fredrik, WAGATHA, Helmut, KNOBLOCH, Daniel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES GENERATING RANDOM NUMBERS PERFORMING OPERATIONS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TIME OR ATTENDANCE REGISTERS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	A method for controlling access to a system by means of an identification (ID) transmitter, wherein the ID transmitter is authenticated by virtue of a distance between the ID transmitter and a reference point in the system being checked by transmitting a radio signal, includes receiving a first version of the radio signal at a first time and a second version of the radio signal at a second time. The method also includes determining, based on the first time and on the second time, whether the second version of the radio signal is a relay signal generated from the radio signal as part of a relay attack, and prompting a measure to prevent access to the system if it is determined that the second version of the radio signal is the relay signal.