EP0813170A2 - Système électronique d'autorisation d'accès et procédé pour détecter l'accès autorisé - Google Patents

Système électronique d'autorisation d'accès et procédé pour détecter l'accès autorisé Download PDF

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Publication number
EP0813170A2
EP0813170A2 EP97108942A EP97108942A EP0813170A2 EP 0813170 A2 EP0813170 A2 EP 0813170A2 EP 97108942 A EP97108942 A EP 97108942A EP 97108942 A EP97108942 A EP 97108942A EP 0813170 A2 EP0813170 A2 EP 0813170A2
Authority
EP
European Patent Office
Prior art keywords
code
key
lock
stored
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97108942A
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German (de)
English (en)
Other versions
EP0813170A3 (fr
Inventor
Werner Dipl.-Ing. Eckel
Neckov Kresimir
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0813170A2 publication Critical patent/EP0813170A2/fr
Publication of EP0813170A3 publication Critical patent/EP0813170A3/fr
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/21—Individual registration on entry or exit involving the use of a pass having a variable access code
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/0042—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks the transmitted data signal containing a code which is changed
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00785—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by light

Definitions

  • the present invention relates to an electronic access authorization system according to the preamble of patent claim 1.
  • the present invention further relates to a method for determining authorized access to a system.
  • An access authorization system is to be understood here and in the following to mean a system which enables only certain authorized persons to access the system.
  • Typical applications are, for example, computer networks that offer services or information to an authorized user.
  • Another application is an electronic lock with one or more associated electronic keys built into a handheld transmitter.
  • the lock is installed in a door, for example a building or a motor vehicle, and only opens in response to a specific code transmitted by the handheld transmitter.
  • the code can be transmitted using optical, electromagnetic or sound signals.
  • the user receives a specific personal code that is used by the system to identify the user.
  • the crucial new idea in the electronic access authorization system is that not only a specific code, but a plurality of different codes stored in advance are used to determine the access authorization, the codes of the key and lock matching each other and each code being used only once . This means that every time an attempt is made to access the system, a different code is used, which means that the observation itself successful access to the system does not indicate the code that will be used next. Such an access authorization system is practically protected against any manipulation.
  • reference numeral 10 generally designates an electronic lock and reference numeral 20 an associated key, only one key being shown for reasons of clarity of illustration. It is clear to the person skilled in the art that a lock and any number of keys can be provided in an access authorization system of the type in question, each key being able to open the lock alone. Alternatively, a lock can only be opened when several different keys are present. Other combinations of these alternatives are known to the person skilled in the art.
  • the electronic lock 10 and each key 20 have an 8-bit controller 11, 21, which is of the 87C51 type, for example, to control their operating functions.
  • the control program for the controller is stored in an internal memory of the controller.
  • a code address is stored in a non-volatile EEPROM memory 12 of the lock, and so on will be explained in detail below.
  • an identification address with a length of, for example, 32 bits is stored in the internal memory of the controller, which allows a unique identification of the lock and key.
  • the lock and key each have an EPROM memory 13, 23, in which a large number of different codes are stored, which represent a random sequence. What is special about the arrangement is that the content of the EPROM memories, i.e. the multiplicity of codes match when the lock and key belong together, for example are identical.
  • the storage capacity of the EPROM memories 13, 23 is variable depending on the number of expected access attempts. A typical size for this memory is between 1 Mbit and 8 Mbit.
  • the controller and the memory are integrated in an ASIC, a user-specific circuit.
  • An ASIC is economically producible in mass production and is secured against reading out the memory contents if suitable measures are taken.
  • the key and lock have an interface 14, 24 for suitable communication, e.g. Infrared light transmission.
  • suitable communication e.g. Infrared light transmission.
  • the structure of such interfaces is familiar to the person skilled in the art and is therefore not described in detail.
  • controller 21 of the key has a suitable interface for the manual input of control signals, for example via a keyboard 25.
  • the controller 11 of the lock 10 controls an actuator 15, for example an electrical relay, which enables access to a system.
  • the lock code and key code with a length of 24 bits (3 bytes) are stored alternately in this memory.
  • Each code is a random sequence generated, for example, by subsampling a white thermal noise source.
  • the memory in the example described here is constructed in such a way that a data byte is stored at each address. Therefore, for example, the 24 bits of the first lock code are at the first three addresses of the memory, the 24 bits of the first key code at addresses 4 to 6, the 24 bits of the second lock code etc. at addresses 7 to 9.
  • a lock code is used for each access authorization process and a key code together requires 48 bits.
  • An EPROM with a storage capacity of 8 Mbit thus allows more than 150,000 access authorization processes to be carried out.
  • the lock is initially in the waiting state 100 and is waiting for identification by the key.
  • the key sends its stored identification to the lock (step 201).
  • the lock has received an identification (step 101)
  • a comparison is made between the received identification and an identification stored in the lock (step 102). If the identifications match, the controller 11 reads the current code address from the EEPROM, updates the code address and writes it back to the EEPROM.
  • step 104 the read code address and the associated 24-bit lock code, which is read out of the EPROM 13, are transmitted to the key.
  • the received code is compared in the key with the code that is stored at the code address in the EPROM memory 23 of the key (step 202).
  • the key transmits the 24-bit key code associated with the lock code to the lock in step 203.
  • the lock compares the transmitted key code with its own stored key code (step 105) and, if the codes match, enables access to the system (step 106). This can trigger the generation of a suitable control signal for an actuator 15, for example.
  • the system and the key and lock are only released if the identifications and the 24-bit lock and key codes match. Since the transmitted lock code and the key code expected by the key as a response signal change after each comparison, the access authorization system is immune to manipulation.
  • a counting device can be provided which, after receiving a certain number of incorrect codes, causes the lock to be temporarily or permanently blocked. Then a repeated random query can not lead to success with this system.
  • the data can be transmitted using conventional communication devices, for example using infrared transmitters and receivers.
  • a check sum can be formed over a group of 8 transmitted bits, which is also transmitted. Only if the checksum is correct is a data reception evaluated as an attempt to gain access. Otherwise, a code that has been transmitted incompletely or incorrectly, for example, is regarded as receiving an incorrect code, which could result in the lock being locked unnecessarily.
  • the transmission protocol and the type of data transmission can be freely selected by the person skilled in the art.
  • the access authorization system according to the invention is used in a computer network, chipsets are provided in the central computer and in the user. Here the personal identification number is replaced by the codes saved in advance.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Lock And Its Accessories (AREA)
EP97108942A 1996-06-03 1997-06-03 Système électronique d'autorisation d'accès et procédé pour détecter l'accès autorisé Withdrawn EP0813170A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622255 1996-06-03
DE19622255A DE19622255A1 (de) 1996-06-03 1996-06-03 Elektronisches Zugangsberechtigungssystem und Verfahren zum Feststellen eines berechtigten Zugangs

Publications (2)

Publication Number Publication Date
EP0813170A2 true EP0813170A2 (fr) 1997-12-17
EP0813170A3 EP0813170A3 (fr) 1999-04-28

Family

ID=7796022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108942A Withdrawn EP0813170A3 (fr) 1996-06-03 1997-06-03 Système électronique d'autorisation d'accès et procédé pour détecter l'accès autorisé

Country Status (2)

Country Link
EP (1) EP0813170A3 (fr)
DE (1) DE19622255A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035524A2 (fr) * 1999-03-10 2000-09-13 Denis Philippe Baron Cartes à puce et sytèmes d'échange de données sécurisés notamment pour paiements
FR2790854A1 (fr) * 1998-12-01 2000-09-15 Philippe Baron D Supports et systemes d'echange de donnees securises notamment pour paiement et telepaiements
FR2796742A1 (fr) * 1998-12-01 2001-01-26 Philippe Baron D Supports et systemes d'echange de donnees securises notamment pour paiements et telepaiements
FR2819089A1 (fr) * 2001-01-02 2002-07-05 Patrick Say Systeme d'interrupteur autonome a codes multiples predefinis
FR2819085A1 (fr) * 2001-01-02 2002-07-05 Patrick Say Systeme de gestion et de controle d'acces a codes, sans cle ni objet portatif, dispositif de commande d'acces et dispositif d'obtention de code d'acces correspondants
EP3923105A4 (fr) * 2019-02-08 2022-11-23 SSenStone Inc. Système, procédé et programme de commande fondés sur un code virtuel, dispositif de commande et moyen de génération de signal de commande pour objet mobile autonome
US12096208B2 (en) 2019-02-08 2024-09-17 SSenStone Inc. Virtual code-based control system, method and program, control device and control signal generating means for unmanned moving object

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20017029U1 (de) 2000-10-04 2001-01-18 Grone-Füllberg, Geta von, Arguineguin, Gran Canaria Verschlußsystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103790A2 (fr) * 1982-09-17 1984-03-28 Siemens Aktiengesellschaft Procédé de codage pour une clé électronique
EP0521547A1 (fr) * 1991-07-01 1993-01-07 Medardo Reggiani Dispositif antivol à action passive
DE4411435A1 (de) * 1994-03-31 1995-10-05 Bayerische Motoren Werke Ag Verfahren zum Steuern der Benutzung eines Kraftfahrzeugs mit Hilfe eines aus zwei Teilen bestehenden Codesignals
DE19516992C1 (de) * 1995-05-09 1996-04-04 Siemens Ag Verfahren zum Betreiben einer Diebstahlschutzeinrichtung für ein Kraftfahrzeug und Diebstahlschutzeinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337262C1 (de) * 1993-11-02 1995-03-30 Thomas Kohn Telefonkartengesteuertes elektronisches Zugangsberechtigungssystem
DE19508288A1 (de) * 1995-03-09 1995-10-05 Peter Prof Dr Ing Liell Verfahren und Anordnung zur Verhinderung der unberechtigten Nutzung eines Rechners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103790A2 (fr) * 1982-09-17 1984-03-28 Siemens Aktiengesellschaft Procédé de codage pour une clé électronique
EP0521547A1 (fr) * 1991-07-01 1993-01-07 Medardo Reggiani Dispositif antivol à action passive
DE4411435A1 (de) * 1994-03-31 1995-10-05 Bayerische Motoren Werke Ag Verfahren zum Steuern der Benutzung eines Kraftfahrzeugs mit Hilfe eines aus zwei Teilen bestehenden Codesignals
DE19516992C1 (de) * 1995-05-09 1996-04-04 Siemens Ag Verfahren zum Betreiben einer Diebstahlschutzeinrichtung für ein Kraftfahrzeug und Diebstahlschutzeinrichtung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790854A1 (fr) * 1998-12-01 2000-09-15 Philippe Baron D Supports et systemes d'echange de donnees securises notamment pour paiement et telepaiements
FR2796742A1 (fr) * 1998-12-01 2001-01-26 Philippe Baron D Supports et systemes d'echange de donnees securises notamment pour paiements et telepaiements
EP1035524A2 (fr) * 1999-03-10 2000-09-13 Denis Philippe Baron Cartes à puce et sytèmes d'échange de données sécurisés notamment pour paiements
EP1035524A3 (fr) * 1999-03-10 2003-12-10 Denis Philippe Baron Cartes à puce et sytèmes d'échange de données sécurisés notamment pour paiements
FR2819089A1 (fr) * 2001-01-02 2002-07-05 Patrick Say Systeme d'interrupteur autonome a codes multiples predefinis
FR2819085A1 (fr) * 2001-01-02 2002-07-05 Patrick Say Systeme de gestion et de controle d'acces a codes, sans cle ni objet portatif, dispositif de commande d'acces et dispositif d'obtention de code d'acces correspondants
WO2002054352A2 (fr) * 2001-01-02 2002-07-11 Patrick Say Systeme de gestion et de controle d'acces a codes
WO2002054352A3 (fr) * 2001-01-02 2002-08-22 Patrick Say Systeme de gestion et de controle d'acces a codes
EP3923105A4 (fr) * 2019-02-08 2022-11-23 SSenStone Inc. Système, procédé et programme de commande fondés sur un code virtuel, dispositif de commande et moyen de génération de signal de commande pour objet mobile autonome
US12096208B2 (en) 2019-02-08 2024-09-17 SSenStone Inc. Virtual code-based control system, method and program, control device and control signal generating means for unmanned moving object

Also Published As

Publication number Publication date
EP0813170A3 (fr) 1999-04-28
DE19622255A1 (de) 1997-12-04

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