KEY AND LOCK DEVICE
A key and lock device comprises a key having a first electronic circuit and a lock having a second electronic circuit. 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 and perform a calculation in...
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| creator | BRENNECKE GUDRUN KRUEHN JUERGEN THOMAS J.M WARNSTROEM JOHAN GUERTLER JENS HAKKARAINEN REIJO PEGUIRON NICOLAS SIVONEN HANNU LEFEBVRE ARNAUD JAQUET CLAUDE-ERIC SCHOELL LANCE G VARENNE ALAIN DARMANIN CHRISTIAN LIDEN INGE NORBERG ROLF CHANEL CHRISTOPHE ANDRE GILBERT HAMMER WALTER MAGNUSSON BJOERN |
| description | A key and lock device comprises a key having a first electronic circuit and a lock having a second electronic circuit. 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 and perform a calculation in the respective circuitry based on the random number and secret information. An electrical blocking mechanism is moved to a non-blocking position if a comparison of the calculations in the circuits gives the correct result. |
| format | Patent |
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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 and perform a calculation in the respective circuitry based on the random number and secret information. 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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 and perform a calculation in the respective circuitry based on the random number and secret information. An electrical blocking mechanism is moved to a non-blocking position if a comparison of the calculations in the circuits gives the correct result.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; pol |
| recordid | cdi_epo_espacenet_PL198428BB1 |
| source | esp@cenet |
| subjects | 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 |
| title | KEY AND LOCK DEVICE |
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