Key and lock device

A key and lock device comprises a key (10) having a first electronic circuitry (14) and a lock (20) having a second electronic circuitry (24). The key and the lock store secret information, some of which is unique for each device. The key and the lock exchange a random number through connectors (15,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAKKARAINEN, REIJO, NORBERG, ROLF, MAGNUSSON, BJOERN, SIVONEN, HANNU, LIDEN, INGE
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FIXED CONSTRUCTIONS GENERATING RANDOM NUMBERS HANDCUFFS KEYS LOCKS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES SAFES TIME OR ATTENDANCE REGISTERS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION VOTING OR LOTTERY APPARATUS WINDOW OR DOOR FITTINGS
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