EP0121222B1 - Appareil et méthode pour la mise en mémoire de données sur un support de données portatif, destiné à l'identification de personnes - Google Patents

Appareil et méthode pour la mise en mémoire de données sur un support de données portatif, destiné à l'identification de personnes Download PDF

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Publication number
EP0121222B1
EP0121222B1 EP84103387A EP84103387A EP0121222B1 EP 0121222 B1 EP0121222 B1 EP 0121222B1 EP 84103387 A EP84103387 A EP 84103387A EP 84103387 A EP84103387 A EP 84103387A EP 0121222 B1 EP0121222 B1 EP 0121222B1
Authority
EP
European Patent Office
Prior art keywords
information signals
person
data carrier
signals
stored
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.)
Expired
Application number
EP84103387A
Other languages
German (de)
English (en)
Other versions
EP0121222A3 (en
EP0121222A2 (fr
Inventor
Hartwig Dr. Rüll
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT84103387T priority Critical patent/ATE40608T1/de
Publication of EP0121222A2 publication Critical patent/EP0121222A2/fr
Publication of EP0121222A3 publication Critical patent/EP0121222A3/de
Application granted granted Critical
Publication of EP0121222B1 publication Critical patent/EP0121222B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/25—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
    • G07C9/257—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition electronically
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/904—Credit card

Definitions

  • the present invention relates to a method for storing information on a portable storage medium for personal identification, in which one or more personal characteristics of a person are scanned, one or more information signals corresponding to the scanned personal characteristics are derived, an encoding or scrambling key is developed which Scrambling key is used to encode the information signals and the encoded information signals are stored on the portable storage medium, and a device for storing scrambled information on a portable storage medium with a scanner for scanning one or more personal characteristics of a person, a derivation device connected to the scanner for derivation one or more information signals, which correspond to the scanned features, of a receiving device connected to the derivation device for receiving de r information signals, a coding device connected to the receiving device for coding the information signals with a scrambling key and a storage device connected to the coding device for storing the coded information signals on the portable storage medium.
  • An automatic person verification system described in U.S. Patent 3,781,113 has a coherent-optical filter matched correlator. It calculates the two-dimensional cross-correlation function between the present fingerprint and a fingerprint that was previously encrypted on an identification card. If these fingerprints match, a bright light spot is created at the output of the optical system. If the prints do not match, a random pattern of low light intensity is generated. Each time the correlated peak exceeds a predetermined threshold, a green light is turned on and a relay is closed. Closing the relay is typically used to energize a door lock solenoid.
  • Each identification card in the automatic person verification system contains a small piece of photographic film. The image recorded on this piece of film or chip represents a coded version of the fingerprint of the wearer.
  • anyone seeking access to a facility protected by this automatic person verification system must leave a fresh oil fingerprint on a special window. As mentioned above, the system correlates the fresh fingerprint with the stored fingerprint. If they match or match, a green light is excited and the gate unlocked.
  • the object of the present invention is to provide a method for personal identification or personal identification which cannot be avoided by unauthorized persons and a device for carrying out such a method.
  • An advantage of the invention can be seen in the fact that a method and a device for a personal identification system or authentication system are created, wherein scrambled information, which corresponds to the personal characteristics or properties of the user, is stored on a portable storage medium.
  • the invention also provides a person identification or authentication system in which scramble information corresponding to a person's personal characteristics or properties is stored on a portable storage medium. To carry out this storage, the personal characteristics of a person are first given gropes. Then information signals which correspond to the scanned personal features or properties are derived and a characteristic scrambling key is derived from the information signals. This scrambling key is used to encode the information signals which are then stored on the portable storage medium.
  • the invention further provides a method and apparatus for verifying a person's identity using a portable storage medium on which encoded information signals for personal identification have been stored.
  • the personal characteristics or properties of the person to be identified are scanned and existing information signals which correspond to the scanned characteristics or properties are derived.
  • a characteristic scrambling key is then derived from the present information signals and a first set of comparative encoded information signals stored on the portable storage medium is sampled and decoded with the characteristic scrambling key derived from the present information.
  • a second set of comparison signals is derived from the decoded information signals and compared with the first set of comparison signals to verify the identity of the person.
  • the present invention may use personal traits or features such as fingerprints, language, and faces.
  • Holograms, scrambled magnetic recording systems or a light modulation system can also be used.
  • the device for storing information uses a fundamentally coherent light source in the form of a laser 1, which directs a light beam 2 onto a beam splitter 3 and also onto a slide 4 on which there is a photograph of a fingerprint to be stored on an identification card 5.
  • the beam splitter 3 directs a reference laser beam 6 onto a mirror 7 and then towards the encoder 8, which will be described in more detail below.
  • the reference laser beam 6 passing through the encoder 8 strikes the card 5 and thereby superimposes the object beam 11 focused by a lens 9 and generates a hologram.
  • a sensitive film 10 is arranged on the card 5, and when the subject's fingerprint has been brought into the object beam by means of the slide 4, exposure is made to both the reference laser beam 6 and the object beam 11.
  • the lens focuses so that a real image 12 is generated at a distance behind the card 5 from the slide with the fingerprint.
  • a detector 14 detects personal properties or features from an existing fingerprint 15 of the person to be identified.
  • the detector 14 coupled to the sensor 13 derives information signals which correspond to the scanned present fingerprint 15 and forwards these signals to an image processing system 16.
  • a typical image processing system that includes a sensor and a detector is described in U.S. Patent Application, US Serial No. 176,695.
  • the image processing system generates a code word 17 based on the fingerprint features, which consists of a sequence of binary digits which describes the features or properties of the fingerprint in accordance with rules used for fingerprint acquisition.
  • fingerprint features which consists of a sequence of binary digits which describes the features or properties of the fingerprint in accordance with rules used for fingerprint acquisition.
  • the code word represents a scrambling key be and is fed to an encoder 8 which includes an electronic decoder 18 and a mechanical device.
  • the mechanical device has a coded aperture 19 which consists of a plate bearing an aperture of any shape, the plate being movable by electronic means in accordance with the coordinate axes in the x, y or z direction.
  • the coded aperture arranged between the reference laser beam and the identification card modulates the reference laser beam.
  • the laser beam is then dispersed by a dispersing unit 20, which consists of a matt screen, for example made of glass.
  • the encoder typically a general optical element, changes the phase and / or amplitude of the laser beam passing through it. When the encoded aperture is used as a reflective element, the laser beam is reflected by this element statistically or randomly.
  • the encoded aperture 19 which is mechanically moved in three directions including circular motion by the encoder, acts as a means for scrambling the reference laser beam to generate a scrambled hologram for use on the identification card.
  • the scrambling depends on the fingerprint of the person to be registered.
  • the identification card now carries a photograph of an encoded hologram of the person's fingerprint on film 10 encoded by a scrambling key derived from the current or present fingerprint 15.
  • any person entering facilities that are secured by the person identification system according to the invention inserts their identification card, which carries their encoded fingerprint hologram, into a decoding device. At about the same time, it must place a fresh fingerprint 15 on the sensor 13 coupled to the detector 14 which scans the fingerprint and derives current information signals which correspond to the scanned fingerprint.
  • the image processing system 16 coupled to the detector 14 develops a characteristic code word 17 which, as described above, represents a scrambling key.
  • the code word 17 is supplied to the encoder 21, which operates and is designed in the same way as the encoder described in FIG. 1.
  • the decoder 18 in the encoder 21 moves the encoded aperture 19 by mechanical means according to the codeword 17.
  • the reference laser beam 6 is shaped by the encoded aperture 19 in the same way as it was modulated during the generation of the identification card.
  • the reference laser beam then strikes the dispersing unit 20 in the form of a matt screen to produce a dispersed reference laser beam.
  • the card 5 is exposed by the dispersed and demodulated reference laser beam and a decoded real image 12 of the fingerprint is projected onto a photo-optical sensor 22.
  • the sensor 22 is arranged at the same distance from the card as the real image of the fingerprint is arranged away from the card shown in FIG. 1. This is an integral part of the sensor-detector system that is used to develop the information signals.
  • a second image processing system 23 which operates and is configured as the image processing system 16 that has already been discussed, develops a second code word 24 based on the decoded image that is projected onto the sensor.
  • This code word consists of a series of binary digits.
  • a comparator 25 coupled to the image processing system 16 of the present fingerprint and to the second image processing system 23 of the decoded fingerprint compares the two code words. If the code word 17 derived from the present fingerprint matches or matches the code word 24 derived from the stored and decoded fingerprint, a light 26 is excited and a gate 27 is unlocked.
  • a method and apparatus for storing information in a scrambled form related to personal characteristics of a person have been described.
  • This information can be stored on a portable storage medium that can be carried by the person and used to gain access to a secured area by decoding in place and verifying the stored information.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Collating Specific Patterns (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Storage Device Security (AREA)
  • Credit Cards Or The Like (AREA)

Claims (6)

1. Procédé pour la mémorisation d'informations sur un milieu de mémorisation portable (5), en vue de l'identification de personnes, dans lequel
a) une ou plusieurs caractéristiques personnelles (15) d'une personne sont détectées,
b) un ou plusieurs signaux d'informations qui correspondent aux caractéristiques détectées, sont dérivés,
c) une clé de codage ou d'embrouillement (17) est développée,
d) la clé d'embrouillement (17) est utilisée pour coder les signaux d'informations,
e) les signaux d'informations codés sont mémorisés sur le milieu de mémorisation (5), caractérisé par le fait que
f) la clé de codage ou d'embrouillement est dérivée des signaux d'informations.
2. Procédé pour vérifier l'identité d'une personne par comparaison de premiers (17) et de seconds (24) signaux de comparaison qui sont obtenus d'une part par détection de caractéristiques personnelles d'une personne et d'autre part par l'exploration d'un milieu de mémorisation portable (5) sur lequel des signaux d'informations codés ont été mémorisés pour l'identification de personnes selon le procédé de la revendication 1, caractérisé par le fait que
a) on développe, à partir du signal d'informations qui correspond aux caractéristiques personnelles qui ont été détectées, un premier mot de code (17),
b) on utilise le premier mot de code pour décoder le signal d'informations résultant de l'exploration du milieu de mémorisation,
c) on dérive un second mot de code (24) à partir du signal décodé à l'aide du premier mot de code,
d) on compare le premier et le second mot de code pour la vérification de l'identité de la personne.
3. Dispositif pour la mémorisation d'informations embrouillées sur un milieu de mémorisation portable (15), comportant
a) un dispositif de balayage ou d'exploration (13) pour la lecture d'une bu de plusieurs caractéristiques personnelles d'une personne,
b) un dispositif de déduction (14) pour dériver un ou plusieurs signaux d'informations qui correspondent aux caractéristiques qui ont été détectées,
c) un dispositif de réception (16) qui est relié au dispositif de déduction (14), en vue de la réception des signaux d'informations,
d) un dispositif de codage (8) relié au dispositif de réception (16), en vue du codage des signaux d'informations avec une clé d'embrouillement (17), et
e) un dispositif de mémorisation relié au dispositif de codage (8), en vue de mémoriser les signaux d'informations codés sur un milieu de mémorisation portable (5), caractérisé par le fait que
f) le dispositif dérive la clé d'embrouillement (17) à partir des signaux d'informations.
4. Dispositif pour vérifier l'identité d'une personne par comparaison de premiers (17) et de seconds (26) signaux de comparaison qui sont obtenus d'une part par détection de caractéristiques personnelles d'une personne et, d'autre part par l'exploration d'un milieu de mémorisation portable (5) sur lequel des signaux d'informations pour l'identification de personnes ont été mémorisés à l'aide d'un dispositif selon la revendication 3, caractérisé par
a) un dispositif, relié au dispositif de réception (16), en vue de dériver d'un premier jeu de signaux de comparaison (17), à partir des signaux d'informations qui sont présents,
b) un dispositif (21) qui est relié au dispositif servant à dériver le premier jeu de signaux de comparaison (17), en vue de balayer et de coder les signaux d'informations codés qui sont mémorisés sur le milieu de mémorisation portable (5),
c) un second dispositif pour dériver un second jeu de signaux de comparaison (24) à partir des signaux d'informations décodés, et
d) un dispositif (25), qui est relié au dispositif (23) servant à dériver le second jeu de signaux de comparaison (24), servant à comparer le premier et le second jeu de signaux de comparaison pour la vérification de l'identité des personnes.
5. Milieu de mémorisation selon une des revendications précédentes caractérisé par le fait que les signaux d'informations codés sont mémorisés dans un hologramme qui est codé avec la clé d'embrouillement (17) ou qui est embrouillé.
EP84103387A 1983-04-01 1984-03-27 Appareil et méthode pour la mise en mémoire de données sur un support de données portatif, destiné à l'identification de personnes Expired EP0121222B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103387T ATE40608T1 (de) 1983-04-01 1984-03-27 Verfahren zum speichern von information auf einem tragbaren speichermedium zur personenidentifizierung und vorrichtung zum speichern von information auf einem tragbaren speichermedium.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US481198 1983-04-01
US06/481,198 US4532508A (en) 1983-04-01 1983-04-01 Personal authentication system

Publications (3)

Publication Number Publication Date
EP0121222A2 EP0121222A2 (fr) 1984-10-10
EP0121222A3 EP0121222A3 (en) 1985-07-10
EP0121222B1 true EP0121222B1 (fr) 1989-02-01

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EP84103387A Expired EP0121222B1 (fr) 1983-04-01 1984-03-27 Appareil et méthode pour la mise en mémoire de données sur un support de données portatif, destiné à l'identification de personnes

Country Status (4)

Country Link
US (1) US4532508A (fr)
EP (1) EP0121222B1 (fr)
AT (1) ATE40608T1 (fr)
DE (1) DE3476594D1 (fr)

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US4532508A (en) 1985-07-30
EP0121222A3 (en) 1985-07-10
DE3476594D1 (en) 1989-03-09
EP0121222A2 (fr) 1984-10-10
ATE40608T1 (de) 1989-02-15

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