EP1072013A1 - Carte a puce dotee d'une fonction electronique de blocage - Google Patents

Carte a puce dotee d'une fonction electronique de blocage

Info

Publication number
EP1072013A1
EP1072013A1 EP99920667A EP99920667A EP1072013A1 EP 1072013 A1 EP1072013 A1 EP 1072013A1 EP 99920667 A EP99920667 A EP 99920667A EP 99920667 A EP99920667 A EP 99920667A EP 1072013 A1 EP1072013 A1 EP 1072013A1
Authority
EP
European Patent Office
Prior art keywords
function
chip
chip card
energy
data
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Withdrawn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
EP99920667A
Other languages
German (de)
English (en)
Inventor
Hans Diedrich Kreft
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.)
Angewandte Digital Elektronik GmbH
Original Assignee
Angewandte Digital Elektronik GmbH
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 Angewandte Digital Elektronik GmbH filed Critical Angewandte Digital Elektronik GmbH
Publication of EP1072013A1 publication Critical patent/EP1072013A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W42/00—Arrangements for protection of devices
    • H10W42/40—Arrangements for protection of devices protecting against tampering, e.g. unauthorised inspection or reverse engineering
    • H10W42/405—Arrangements for protection of devices protecting against tampering, e.g. unauthorised inspection or reverse engineering using active circuits

Definitions

  • Chip card with electronic blocking function Chip card with electronic blocking function.
  • the invention relates to a chip card with a semiconductor chip, in which for the energy supply of the chip and for bidirectional data transmission by means of a terminal from and to the chip, first transmission means, such as contacts, and / or second transmission means, such as contactless coils and / or capacitors, and / or others Energy and data transmission means are provided, wherein a controllable functional element is provided on the chip, according to the preamble of claim 1.
  • chip cards When using chip cards for bidirectional data transmission, it is in many cases necessary to keep only one transmission path for data and / or energy in an active function and to separate the other transmission paths from their connection to the outside world.
  • a chip card that is active via a contact connection is intended to ensure that the contact-free connections to the outside world are interrupted.
  • a chip card has become known from DE 39 35 364 and US Pat. No. 5,206,495, which is able to automatically determine its functioning either via contacts or coils.
  • the chip card contains a chip (part 2) in which the usual parts of a microcomputer, such as arithmetic unit and memory, are accommodated.
  • a contact field with contacts according to ISO standard 7816 is connected to the chip.
  • coils are connected to the chip, which serve for the transmission of energy and bidirectional data flow. Electronics are present in the chip, which enables the automatic switchover from coil function to contact function and vice versa, so that the chip card is able to exchange energy and data contactlessly or in contact with read / write terminals.
  • the chip part 2 consists of two essential functional elements, namely a part 2.1, which switches over between the contact field and coils in accordance with the read / write terminal, and a part 2.2, in which the other chip functions, such as arithmetic unit and memory response unit, are located.
  • the processes that are important for the user of such a chip card such as withdrawing money, storing identifications, - 2 -
  • EP 534 559 AI has proposed a chip card in accordance with ISO standard 7816 and provisional ISO standard 10536, which can exchange energy and data in a contact-free or contact-related manner with read / write terminals. In two different modes, the data can either be read out over a long distance using low energy, only a portion of the integrated circuit being activated (energy-saving mode), or an energy and data exchange takes place in accordance with the normal standardized mode using the contacts.
  • DE 43 10 334, PCT / IB 96/00518, DE 195 31 372 and DE 195 31 275 have become known as further relevant publications.
  • a chip card with a microcomputer unit which is connected to electrically conductive contact surfaces for contact-based data transfer and which has a data memory, which is connected to an antenna for contactless data transfer.
  • a control unit as a function of a control level establishes a connection between antenna and memory or antenna and microcomputer unit.
  • the invention has for its object the electrical separation of connections of the chip card to the outside world depending on a function or. To operate the card safely.
  • the chip card according to the invention of the aforementioned type consists in that
  • the functional element controls one of two switching elements (S1 or S2) as a function of a first or second function or a first or second working mode of the semiconductor chip,
  • the first function or working mode of the semiconductor chip is characterized by an energy and / or data exchange via the first transmission means
  • the first function is active by interrupting part or all of the electrical connection of the data and / or energy exchange in order to maintain the second function of the card via the further transmission means with the exception of the active function and vice versa.
  • the invention is a chip card with a chip in which various controllable components, such as microprocessors and memories, are contained.
  • a wide variety of means can be used for power supply and bidirectional data transmission from and to the chip. Contacts and means for contactless data transmission in the form of coils or capacitors are possible and known. Other energy and data transmissions and / or means can also be provided, such as are present as electronic, miniaturized elements for recording sound or pressure or for capacitive recording of electrical signals in fingerprint sensors.
  • a controllable functional element is provided on the chip, which recognizes the respective functional state or mode, whether the chip card is to operate in contact or in a contactless manner.
  • This functional element can be a comparison element, for example a comparator or operational amplifier, according to part 2.1.2 of DE-C-39 35 364. - 4 -
  • the functional element controls one of the switching elements S1 or S2 depending on this first or second function or working modes of the chip.
  • the elements S1, S2 are electronic parts or circuits which are suitable for separating electrical line connections if they have a voltage applied to their control input.
  • the first function / mode of the semiconductor chip is characterized by an energy exchange and / or data exchange with the outside world of the card (with parts that are not contained in the chip, such as terminals) via the first means.
  • the first means are those that mark the active state of the card. In the case of a card, this can be the connection via the contacts or via the coils.
  • the second function / mode is characterized by an energy and / or data exchange via other means. If the first function is active, parts or the entire electrical connection of the data and / or energy exchange should be interrupted in order to maintain the further function of the card with the exception of the active function.
  • the active function is intended to separate the other possible functions from a data exchange.
  • the mode of operation will be described using the example of a chip card that contains both contacts and coils for energy and / or data exchange with the environment, such as with a terminal. If data comes in via the contacts, they are prepared for further use in one part, such as an input port, for transport over lines. The data arriving from the coils is processed by another part, such as the input port, for transport via further lines.
  • the functional element now recognizes the activation of the chip card via the contacts or the coils, e.g. by the origin of the tension, e.g. According to DE-C-39 35 364, one of the switching elements, S1 and S2, can be activated and the connection to the outside world of the card can be separated. In this way, e.g. the modulated signals that arrive via the coils are separated from the input port, part 2.1.4, before they are demodulated for the purpose of data acquisition.
  • Certain functions may be activated within the same short period of time. In each case, the function should dominantly block the others via the switching elements S1, S2, which occurs first within the time span. - 5 -
  • the function should predominantly operate the switching elements S1 or S2 via contacts. This is intended to establish a clear priority between the different, possible, active states.
  • the contacts represent the strongest energy supply (power supply).
  • the reference potential (VCC of the contacts) is also stable against e.g. contact-free reference potential, since it is connected to the potential in a terminal. If line connections or signal outputs or data lines from and / or to the other functional parts are connected to the basic voltage potential of the contact input, it is ensured that no other signal, namely no other data, signals, logic levels or energies, remain stable, they will become the reference potential - adjust tial. An electrical dominance of the contact function is determined in this way.
  • FIG. 1 shows a possible circuit diagram for realizing the invention and FIG. 2 shows another circuit diagram for realizing the invention.
  • a chip card according to Figure 1 contains a contact field with contacts 3 one
  • the chip (s) present in the chip card can be connected to the contacts 3 as well as to the coils 4, 5 and or to capacitors and / or other transmission elements of a contactless connection.
  • a functional element 2.1.6 contacts 3 or coils 4, 5 and / or capacitors and / or other transmission elements of a contactless connection with the read / write terminal exchanged energy and data.
  • FIG. 2 An electrical power supply for further chip parts or a further chip or several chips in a part 2.2 (FIG. 2) is available, in which the other chip functions such as arithmetic unit and memory units are located; the chip card thus fulfills its intended function, e.g. in contact or contactless mode of operation.
  • part 2.1.5 for transport via lines II ... 16.
  • the data and / or energy arriving from the coils 4, 5 are processed by part 2.1.4 for transport via lines K1 ... K5.
  • Parts 2.1.4 and 2.1.5 for example, represent input ports or input latches or input gates for suppressing voltage peaks or for signal processing.
  • FIG. 2 shows a circuit diagram similar to Figure 1.
  • an electrical or electronic switching element S1 is located in a contact connection II ... 16 ... of contacts 3 to a circuit 2.1.3, which according to DE-C-39 35 364 can be a changeover switch or a multiplexer .
  • a contact connection K1 ... K5 ... of coils 4, 5 and / or capacitors and or other transmission elements to the circuit 2.1.3 there is a switching element. - 7 - ment S2, wherein both switching elements S1, S2, which are symbolically represented as switches, interrupt the corresponding contact connection when they are activated by the circuit 2.1.6. If the functional element 2.1.6 receives notification of the activation of the contact-based contact connection II ... 16 ...
  • the functional element 2.1.6 activates the switching element S2 and the contact connection K1 ... K5 ... interrupted by coils 4, 5 and / or capacitors and / or other transmission elements to the circuit 2.1.3. Then no manipulations can be carried out simultaneously via the coils 4, 5 while the contacts are activated.
  • the functional element 2.1.6 receives notification of the activation of the contactless contact connection Kl ... K5 ... via El, the functional element 2.1.6 activates the switching element S1 and the contact connection II ... 16 ... interrupted, so that no manipulations can be carried out via the contacts 3 via the contacts 3 simultaneously, that is to say while the coils 4, 5 are activated.
  • the invention can be used industrially to increase the security of chip cards against manipulation, which are able to work both with contact and without contact.
  • the usefulness of the invention consists in particular in that, in this way, an active function or an active working mode of the chip card deactivates other functions of the chip card by interrupting electrical connections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un circuit destiné à une carte à puce caractérisé en ce qu'une fonction active désactive d'autres fonctions par interruption de liaisons électriques.
EP99920667A 1998-04-14 1999-04-14 Carte a puce dotee d'une fonction electronique de blocage Withdrawn EP1072013A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19816417A DE19816417A1 (de) 1998-04-14 1998-04-14 Chipkarte mit elektronischer Sperrfunktion
DE19816417 1998-04-14
PCT/EP1999/002516 WO1999053426A1 (fr) 1998-04-14 1999-04-14 Carte a puce dotee d'une fonction electronique de blocage

Publications (1)

Publication Number Publication Date
EP1072013A1 true EP1072013A1 (fr) 2001-01-31

Family

ID=7864433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99920667A Withdrawn EP1072013A1 (fr) 1998-04-14 1999-04-14 Carte a puce dotee d'une fonction electronique de blocage

Country Status (4)

Country Link
US (1) US6565007B1 (fr)
EP (1) EP1072013A1 (fr)
DE (1) DE19816417A1 (fr)
WO (1) WO1999053426A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258831B1 (fr) * 2001-05-17 2006-07-26 Matsushita Electric Industrial Co., Ltd. Carte à puce avec une interface à contacts et une interface sans contacts
JP2003132313A (ja) * 2001-10-24 2003-05-09 Toshiba Corp コンビカード用ｌｓｉ、コンビカード及びコンビカードの使用方法
DE10223176B3 (de) * 2002-05-24 2004-01-22 Infineon Technologies Ag Integrierte Schaltung mit sicherheitskritischen Schaltungskomponenten
US7472834B2 (en) * 2003-07-09 2009-01-06 Stmicroelectronics S.A. Dual-mode smart card
US7612494B2 (en) * 2004-08-18 2009-11-03 Canon Kabushiki Kaisha Image display apparatus having accelerating electrode with uneven thickness
DE102004053475B4 (de) * 2004-11-05 2009-03-19 Hilberg, Wolfgang, Prof. Dr.-Ing. Digitale Universal Chipkarte
DE102006021086A1 (de) * 2006-05-05 2007-11-08 Giesecke & Devrient Gmbh Tragbarer Datenträger sowie System aus Endgerät und tragbarem Datenträger
US20080265017A1 (en) * 2006-10-24 2008-10-30 West Sammie J Credit card and security system
JP5347813B2 (ja) * 2009-08-03 2013-11-20 ソニー株式会社 通信装置及び通信方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723272A1 (de) * 1996-06-04 1997-12-11 Orga Kartensysteme Gmbh Chipkarte
WO1999016016A1 (fr) * 1997-09-23 1999-04-01 Koninklijke Philips Electronics N.V. Support de donnees bimodal et circuit pour un tel support de donnees a coupure du potentiel sur l'une au moins des bornes de contact
EP0945828A2 (fr) * 1998-03-24 1999-09-29 Kabushiki Kaisha Toshiba Dispositif électronique portable avec interfaces decontact et sans contact

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2567219B2 (ja) * 1985-07-03 1996-12-25 日本エルエスアイカード 株式会社 非接触方式による記憶基板とリ−ド・ライト装置間の書込み・読取り方法
JPH01157896A (ja) * 1987-09-28 1989-06-21 Mitsubishi Electric Corp 非接触型ｉｃカード及び非接触型カードリーダライタ
US4894522A (en) * 1987-11-19 1990-01-16 Spectra-Physics, Inc. Interface apparatus
DE3935364C1 (fr) 1989-10-24 1990-08-23 Angewandte Digital Elektronik Gmbh, 2051 Brunstorf, De
DE4403753C1 (de) * 1994-02-08 1995-07-20 Angewandte Digital Elektronik Kombinierte Chipkarte
FR2730576B1 (fr) * 1995-02-15 1997-04-04 Gemplus Card Int Procede de fabrication de cartes electroniques et cartes obtenues par un tel procede
DE19604045A1 (de) * 1996-02-05 1997-08-07 Siemens Ag Vorrichtung zum Verarbeiten und Speichern von Daten
DE19654902C2 (de) * 1996-03-15 2000-02-03 David Finn Chipkarte
DE19611072C2 (de) * 1996-03-21 1998-01-08 Orga Kartensysteme Gmbh Chipkarte, die sowohl kontaktbehaftet als auch kontaktlos betreibbar ist

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723272A1 (de) * 1996-06-04 1997-12-11 Orga Kartensysteme Gmbh Chipkarte
WO1999016016A1 (fr) * 1997-09-23 1999-04-01 Koninklijke Philips Electronics N.V. Support de donnees bimodal et circuit pour un tel support de donnees a coupure du potentiel sur l'une au moins des bornes de contact
EP0945828A2 (fr) * 1998-03-24 1999-09-29 Kabushiki Kaisha Toshiba Dispositif électronique portable avec interfaces decontact et sans contact

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9953426A1 *

Also Published As

Publication number Publication date
DE19816417A1 (de) 1999-10-28
WO1999053426A1 (fr) 1999-10-21
US6565007B1 (en) 2003-05-20

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