WO2000048059A1 - Systeme d'identification - Google Patents

Systeme d'identification Download PDF

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Publication number
WO2000048059A1
WO2000048059A1 PCT/CH2000/000072 CH0000072W WO0048059A1 WO 2000048059 A1 WO2000048059 A1 WO 2000048059A1 CH 0000072 W CH0000072 W CH 0000072W WO 0048059 A1 WO0048059 A1 WO 0048059A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
identification
data carrier
loop antenna
memory
Prior art date
Application number
PCT/CH2000/000072
Other languages
German (de)
English (en)
Inventor
Johann Kaspar Locher
Original Assignee
A-Tronic Mgm 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 A-Tronic Mgm Ag filed Critical A-Tronic Mgm Ag
Priority to AU22755/00A priority Critical patent/AU2275500A/en
Priority to EP00901471A priority patent/EP1163560A1/fr
Publication of WO2000048059A1 publication Critical patent/WO2000048059A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • G06K19/041—Constructional details
    • G06K19/042—Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD
    • G06K19/045—Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD the record carrier being of the non-contact type, e.g. RFID, and being specially adapted for attachment to a disc, e.g. a CD or DVD
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2121—Chip on media, e.g. a disk or tape with a chip embedded in its case

Definitions

  • the invention relates to an identification system according to the preamble of patent claim 1.
  • Identification systems are also known which are used as access authorization means for cashier systems. Such systems include, for example, an identification card with access functions that can be carried by a person in order to obtain banknotes or pay bills.
  • FIG. 1 shows a schematic block diagram of a computer system with an identification system according to the invention
  • FIG. 1 shows a schematic illustration to explain the mode of operation of a data carrier according to the identification system according to the invention
  • FIG. 1 A schematic sectional view of a housing of a read head
  • FIG. 6 and 7 representations of a first and a second embodiment of a compact disc provided according to the invention with a so-called loop antenna and a chip.
  • the computer system according to FIG. 1 comprises a computer 1, a reading drive 1 '- in the present case a compact disc drive - or a read / write drive, a read / write unit, also called WRU unit 2, and a read head 3, which is integrated in the read drive 1 '.
  • the WRU unit 2 comprises a security module 4.
  • the reading drive 1 ' is designed in a known manner in order to read the information data stored thereon from a portable data carrier 5, which can be carried by a person, for example, a S art card CD in the example shown.
  • the reading head 3 is designed to from
  • Data carrier 5 read identification and authorization data;
  • the data carrier 5 is provided with a passive electronic circuit 12 with a processor, which is separate from the memory area 5 '
  • the read head 3 designed as an additional device can have an antenna, preferably a loop antenna 6, also a loop or loop antenna. It is connected to WRU unit 2. However, the reading head 3 can also be integrated in the WRU unit 2 and / or this - together with the reading drive 1 'in the computer 1.
  • the circuit 12 arranged in the interior of the data carrier 5 comprises, as shown in FIG. 2, one of the
  • the antenna 9 is preferably a loop antenna, which is integrated in the data carrier 5.
  • the antenna 9 is connected to an integrated electronic circuit part which is provided with two diodes 101, 102 connected to the antenna, a capacitor 11 and a processor and memory chip 14.
  • the identification system according to FIGS. 1 and 2 works as follows:
  • an EEPROM is present in the processor and memory chip 14 as a data memory.
  • the data carrier 5 also called the medium, is located in the reader 1 'and thus in the vicinity of the antenna 6 connected to the WRU unit 2.
  • the data carrier 5 receives the energy required for the processor and memory chip 14 via the inductive coupling between the antenna 6 of the read head 3 and the antenna 9 of the
  • Data carrier 5 Simultaneously with the energy, identification and authorization data are transmitted in both directions by intelligent modulation methods between the security module 4 of the WRU unit 2 and the processor and memory chip 14 in the data carrier 5.
  • Electromagnetic waves are emitted by the antenna 6. If the coupling between the transmitting antenna 6 and the receiving antenna 9 is sufficiently close, 5 AC voltage is induced in the antenna 9 of the data carrier. This alternating voltage is rectified via the diodes 101 and 102 and smoothed by the capacitor 11, which also acts as an energy store. It serves to supply power to the electronic circuit 12. In addition the electromagnetic waves also serve to transmit signals. Transmission data - these contain the identification and authorization data - and a system clock for processing the identification and authorization data in the processor and memory chip 14 are derived from these.
  • the data transmission from the security module 4 to the data carrier 5 via the antennas 6 and 9 preferably takes place according to the principle of pulse-pause modulation, in that the high-frequency signal is switched on and off briefly at certain time intervals, for example in such a way that gaps occur at two different intervals that correspond to the information "logical 0" or "logical 1".
  • the data transmission from the data carrier 5 to the security module 4 via the antennas 9 and 6 preferably takes place according to the principle of load modulation, in that the antenna circuit of the data carrier 5 is subjected to a higher load in order to transmit a “logical 1” in order to cause the antennas to be slightly detuned, which can be detected and processed in the security module 4.
  • FIG. 4 shows a computer diskette, which serves as a data carrier 5 and is typically designated as a medium and is generally designated with the reference symbol 51 and, as usual, has a rotatable data carrier disk 13 for storing information data (see also FIG. 5) and according to the invention is additionally provided with a loop antenna 91 and a processor memory chip 141, as described above.
  • the elements 91 and 141 can be arranged or implemented on a very thin film using technology known per se.
  • Such a plastic film, as indicated in FIG. 4 is preferably integrated on one flat side into the wall of the housing of the diskette 51, preferably not recognizable from the outside; but it can also be glued on.
  • the chip 141 (FIG. 4) or 14 (FIG. 2) can also take over the function of the diodes 101 and 102 and the capacitor 11.
  • a circular loop antenna 92 is arranged concentrically with or on the rotatable actual information data carrier disc 13, preferably in the interior such that the active surface of the data carrier disc 13 does not pass through the loop antenna 92 is overlapped.
  • the processor and memory chip 142 for the identification data is connected to the loop antenna 92.
  • a circular loop antenna 93 can be arranged in or on the outer edge of the data carrier disk 13, to which a processor and memory chip 143 for the identification and authorization data, also integrated in the data carrier disk 13, is connected is.
  • the rectangular card 53 according to FIG. 6 - it is a smart card CD as already shown in FIG. 1 - is in the form of a compact disc with two cut segments on the edges 531, 532, so that only a partial area the compact disc area is active as a storage area 5 'for the information data.
  • a circular loop antenna 94 is arranged concentrically to the central opening 533 of the rotatable actual information data carrier disc (compact disc), preferably in the interior of the card 53 in such a way that the active surface 5 ′ of the data carrier disc does not pass through the loop antenna 94 is overlapped, to which a processor and memory chip 144 is connected for the identification and authorization data.
  • the rectangular card 54 according to FIG. 7 - again a smart card CD - is also in the form of a compact disc with two cut segments, so that the surface 5 'is again active for the information data storage.
  • a rectangular loop antenna 95 is approximately symmetrical to the central opening of the rotatable actual information data carrier disc (Compactdisc) arranged, preferably in such a way in the outer area of the card 54 that the active surface 5 'of the data carrier disk is not significantly overlapped by the loop antenna 95 to which a processor and memory chip 145 for the information and authorization data is connected .
  • Compactdisc actual information data carrier disc
  • Each data carrier 5 or each medium contains a processor and memory chip 14, 141, 142, 143, 144, 145 with a stored specific identification and authorization information.
  • the identification information serves to identify the data carrier 5 and / or the user, preferably for both.
  • further identification information can be stored in the processor and memory chip, for example a PIN code (Personal Identification Number), biometric information such as a fingerprint image, etc., which is read by means of the reading head 3 and which in the security module 4 with corresponding information the keyboard of the computer 1 or another corresponding reading or input device supplied to the security module 4 and identifying the user can be compared.
  • the authorization data stored in the processor and memory chip 14, 141, 142, 143, 144, 145 relate to the access authorization “who may which areas of the Read information storage, who is allowed to describe which areas of the information storage. "
  • the WRU unit 2 After identification of the data carrier 5 and / or the user by the security module 4, the WRU unit 2 reads the authorization data of the processor and memory chip 14 via the read head 3 and allows the user to read or write only those areas of the information data memory 5 'for which he is authorized.
  • the identification data and / or authorization data can also include security data.
  • Those information data which may not be read by everyone are preferably stored on the data carrier 5 in encrypted form and thus cannot be used by unauthorized persons. It is only when the read identification and authorization data matches the corresponding data in the security module 4 that the information data can be decrypted.
  • the necessary decryption code for the information data is stored in the processor and memory chip 14, 141, 142, 143, 144, 145 of the data carrier - for example, under the authorization data - the processor and memory chip being programmed so that the decryption code can be changed using the Read head 3 can only be read out if the identification and authorization data that have been read out have previously been recognized by the security module 4 as correct and the latter has transmitted a corresponding confirmation signal to the data carrier 5.
  • Security can be further increased if only parts of the decryption code and the remaining parts are stored in the security module 4 in the processor and memory chip 14 of the data carrier 5.
  • the present invention is not limited to the special floppy disks or CD smart cards described, but correspondingly also to conventional CD's, removable hard disks, zip floppy disks, DVD data carriers, tape cassettes, etc.
  • the data carrier 5 can have contact areas for the contact-related data transfer between the processor and memory chip 14 for the
  • the read head is equipped with mechanical contacts. Capacitive transmission of the identification data is also possible.
  • the field strengths for the transmission of the identification data are to be selected in such a way that the information data is not deleted or changed.
  • suitable electromagnetic shields can be present in the read head and / or in the data carrier.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Système d'identification pour une unité informatique qui travaille avec des supports de données d'information externes conçus également en tant que supports (51) pour des données d'identification supplémentaires. Ledit support (51) possède, outre la mémoire pour les données d'information, une puce séparée (141) dotée d'une mémoire et d'un processeur propre pour les données d'identification. Une antenne-cadre (91) plate connectée à la puce (141) est destinée à la transmission des données d'identification.
PCT/CH2000/000072 1999-02-11 2000-02-09 Systeme d'identification WO2000048059A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU22755/00A AU2275500A (en) 1999-02-11 2000-02-09 Identification system
EP00901471A EP1163560A1 (fr) 1999-02-11 2000-02-09 Systeme d'identification

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH265/99 1999-02-11
CH26599 1999-02-11

Publications (1)

Publication Number Publication Date
WO2000048059A1 true WO2000048059A1 (fr) 2000-08-17

Family

ID=4183076

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000072 WO2000048059A1 (fr) 1999-02-11 2000-02-09 Systeme d'identification

Country Status (3)

Country Link
EP (1) EP1163560A1 (fr)
AU (1) AU2275500A (fr)
WO (1) WO2000048059A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302893A1 (fr) * 2001-10-16 2003-04-16 X-ident GmbH Porteur de données opto-électronique comportant un transpondeur adheré
WO2006061656A1 (fr) * 2004-12-10 2006-06-15 Garry Thorn Dispositif de stockage de donnees securise
GB2521391A (en) * 2013-12-18 2015-06-24 Skf Ab A building block for a mechanical construction, the bearing and actuator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643475A1 (fr) * 1989-02-21 1990-08-24 Livowsky Jean Michel Procede de controle de l'utilisation d'un support d'informations, notamment magnetique ou magneto-optique et systemes pour sa mise en oeuvre
WO1996029699A1 (fr) * 1995-03-22 1996-09-26 Meiller Comcard Gmbh Dispositif de protection de supports de donnees et dispositif interactif cooperant avec le dispositif de protection pour empecher toute utilisation non autorisee
DE19542900A1 (de) * 1995-11-17 1997-05-22 Cubit Electronics Gmbh Kontaktloser Datenträger
DE19616819A1 (de) * 1996-04-26 1997-10-30 Giesecke & Devrient Gmbh CD mit eingebautem Chip
WO1998004966A1 (fr) * 1996-07-26 1998-02-05 Thomson-Csf Systeme de stockage securise de donnees sur cd-rom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643475A1 (fr) * 1989-02-21 1990-08-24 Livowsky Jean Michel Procede de controle de l'utilisation d'un support d'informations, notamment magnetique ou magneto-optique et systemes pour sa mise en oeuvre
WO1996029699A1 (fr) * 1995-03-22 1996-09-26 Meiller Comcard Gmbh Dispositif de protection de supports de donnees et dispositif interactif cooperant avec le dispositif de protection pour empecher toute utilisation non autorisee
DE19542900A1 (de) * 1995-11-17 1997-05-22 Cubit Electronics Gmbh Kontaktloser Datenträger
DE19616819A1 (de) * 1996-04-26 1997-10-30 Giesecke & Devrient Gmbh CD mit eingebautem Chip
WO1998004966A1 (fr) * 1996-07-26 1998-02-05 Thomson-Csf Systeme de stockage securise de donnees sur cd-rom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1302893A1 (fr) * 2001-10-16 2003-04-16 X-ident GmbH Porteur de données opto-électronique comportant un transpondeur adheré
WO2006061656A1 (fr) * 2004-12-10 2006-06-15 Garry Thorn Dispositif de stockage de donnees securise
GB2521391A (en) * 2013-12-18 2015-06-24 Skf Ab A building block for a mechanical construction, the bearing and actuator

Also Published As

Publication number Publication date
AU2275500A (en) 2000-08-29
EP1163560A1 (fr) 2001-12-19

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