CA2005150C - Insertable element for edp equipment - Google Patents

Insertable element for edp equipment Download PDF

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Publication number
CA2005150C
CA2005150C CA002005150A CA2005150A CA2005150C CA 2005150 C CA2005150 C CA 2005150C CA 002005150 A CA002005150 A CA 002005150A CA 2005150 A CA2005150 A CA 2005150A CA 2005150 C CA2005150 C CA 2005150C
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CA
Canada
Prior art keywords
data
processor
housing
processing circuitry
diskette
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 - Fee Related
Application number
CA002005150A
Other languages
French (fr)
Other versions
CA2005150A1 (en
Inventor
Raymund H. Eisele
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.)
SmartDiskette GmbH
Original Assignee
SmartDiskette 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 SmartDiskette GmbH filed Critical SmartDiskette GmbH
Publication of CA2005150A1 publication Critical patent/CA2005150A1/en
Application granted granted Critical
Publication of CA2005150C publication Critical patent/CA2005150C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G06K19/06—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
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • 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
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • 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
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • 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
    • G06K19/06—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
    • G06K19/06187—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 with magnetically detectable marking
    • G06K19/06206—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 with magnetically detectable marking the magnetic marking being emulated
    • 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
    • G06K19/06—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record carriers
    • G11B23/0327—Containers for flat record carriers for special applications not otherwise provided for
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/049—Cassettes for special applications not otherwise provided for
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/141—Battery and back-up supplies
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0662—Virtualisation aspects
    • G06F3/0664—Virtualisation aspects at device level, e.g. emulation of a storage device or system
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

An insertable element for EDP-equipment which has a processor with a built-in memory and an interface designed in such a way that it is possible to exchange data between the elements processor and the EDP-equipment read/write head. The element is equipped with a battery, power source, and a driver which converts signals coming from the processor into the required magnetic form at the interface and signals coming from the EDP-equipment through the interface into the required form for the processor accordingly. The element has the ability to be able to store additional data and/or programmes in memory which is connected with the processor. The battery also supplies power to the other electronic components within the element. In the case of a diskette or cassette the necessary power is provided by an electric-generator the rotor of which is turned by the drive-shaft of the diskette-drive or by the tape-spools. The induced electric-current is controlled by a regulator in such a way that a battery could be dispensed with.
However, memories which require a constant flow of electric-current need to be equipped with a battery. The electric-current supplied by the generator can also be used to recharge or back-up the battery's own power.

Description

Insertable Element for EDP Equipment The invention is applicable to a magnetic-strip card, a diskette, a cassette or similar, and is basically an element fitted with an interface which can be inserted into EDP
(Electronic Data Pr«cessing) equipment such as a magnetic read/write unit, diskette-drive, cassette-drive etc.
In general, magnetic-strip cards are used in systems such as cash-dispen;~ers, door-openers, automatic-timing systems etc. A disadvantagE=_ is that the magnetic-strips currently in use can quite simpl~T be read by non-authorised users or even copied and/or alterE~d. For this reason access to the above mentioned types of EDP-equipment by non-authorised users cannot always be prevented with certainty at present.
Cards the size of a magnetic-strip card with a built-in processor can already be produced (Smart card). However, these type of cards can only by used in EDP systems equipped with special interface (w:ith or without contacts) through which data can be exchanged between the card's processor and the EDP-equipment.
Typical EDP systems making use of diskettes, cassettes or similar data storage devices are computers, and PCs in particular. These are equipped with diskette or cassette drives according to which type of system is being used, with a read/write unit or head. This enables the data and programmes stored on i~he data storage device to be read and transferred to the computer and additionally, to write programmes and store data on the data storage devices. In this way one can store d~ita and programmes which are required in the computer on external. storage devices. The disadvantage of the usual diskettes or cassettes is that they can easily be copied.
For example, programmes under copyright can be reproduced without paying licsense fees or restricted information can be copied and passed on to non-authorised persons.
At the same time it is impossible to be certain whether programmes stored in a data storage device are in fact the original or whether they may have been tampered with by so-called computer-viruses or may contain a trojan horse. To verify user-identities and/or to encrypt/decrypt data plug-in boards for the databus c>r micro-channel of the computer are generally in use. However, these type of cards are expensive to produce and install and require hardware and software which has to be re-developed for each different type of computer system.
According to the present invention, there is provided an insertable element comprising: a housing which is insertable into a disk drive; an interface, disposed in the housing, for interfacing a memory device in the housing with a read/write head of the disk drive, wherein said interface includes a coil which couples magnetically with the read/write head of the disk drive; a driver circuit coupled to the coil which sends and receives electrical signals to and from the coil; and a processor coupled to the driver circuit, which sends and receives electrical signals to and from the driver circuit;
wherein the processor is coupled to the memory device in the housing, such that the coil, driver circuit, and processor thereby interface the memory device with the read/write head of the disk drive.
Basically, the insertable element has a processor, a memory, which may :be a built-in memory with the processor, and an interface designed in such a way that. it is possible to exchange data between the element's processor and the EDP-equipment's read/write head (diskette drive, magnetic-strip read/write unit or similar).
The advantage of this arrangement is that it is possible to carry out operations with the element's processor such as encryption, and decryption of data or verification of user identity while at t:he same time not requiring a special interface or plug-in board which may be suitable only for a particular computer system.
Thus, the insertable element provides a means to safeguard access to and operation of EDP systems simply and to safeguard against unauthorised copying or alteration of data or programmes .
In one embodiment, the element is equipped with a battery, power source, and a driver which converts signals coming from the processor into the required magnetic form at the interface and signals coming from the EDP-equipment through the interface into the required form for the processor accordingly. A further feature of the element is the ability to be able to store additional data and/or programmes in memory which is connected with the processor. As described below this considerably increases the areas of application for the invented element. At th.e same time the battery also supplies power to the other electronic components within the element.
In the case of a diskette or cassette the necessary power can be provided by an electric-generator the rotor of which is turned by the drive-shaft of the diskette-drive or by the tape-spools. The induced electric-current is controlled by a regulator in such a way that a battery could be dispensed with.
However, memories which require a constant flow of electric-current need to be equipped with a battery. The electric-current supplied by the generator can also be used to recharge or back-up the battery's own power.

- 3a -Also according to the present invention, there is provided a data transfer device for use :in transferring data between an electronic data processor device having a floppy disk drive including a diskette station for receiving diskettes inserted therein, and a memory device for storing data, said data transfer device comprising: a housing having an exterior form being substantially the same as a diskette such that the housing can be inserted into a diskette station of said electronic data processor; a memory device disposed within said housing for storing data to be transferred to said electronic data processing device, digital processing circuitry disposed within said housing and coupled to said memory device;
interface circuitry, disposed within said housing and coupled to said processing ~~ircuitry, for transferring data between said data transfer device and said diskette station of said electronic data pro~~essor, said interface circuitry including converter circuitry for converting digital signals transmitted thereto from said digital processing circuitry into magnetic signals simulating ;signals generated by a diskette, said interface circuitry including a coil; and a source of electrical energy operatively coupled to at least said digital processing circuitr~~.

~~~ ~~.~~
The use of terms such as Diskette, Cassette or similar should, within the frame of reference of this invention, be understood to mean parts having the external appearance of a Diskette, Cassette etc. It does not mean that the Diskettes or Cassettes mentioned necessarily contain magnetic-disks or tapes. The important point is that the element's interface can exchange data with the read/write heads of the relevant drive units. The actual function of data storage can be carried out by the memory adjacent to the processor on 'the element.
Naturally, it would be possible to include a magnetic-disk or tape in the respective devices. In this case it may be advantageous to use the processor and its storage-facility to verify user identification and authorisation. During subsequent normal operation the read/write head of the EDP-equipment can read or write magnetic signals onto the magnetic-disk or tape.
As previously mentioned, the interface of the invented element is developed in such a way as to allow data to be relayed through it between the processor and the magnetic-strip read/write apparatus or the read/write head of the Diskette/Cassette unit. One way of achieving this is to fat an electromagnetic component (e.g, one or more coils) in the vicinity of the interface which is able to generate magnetic-field information equivalent to that generated by the magnetic-strip of a magnetic-strip card, the magnetic-disk of a diskette or the magnetic-tape of a cassette etc. In this way the interface is therefore able to simulate the magnetic-strip, the magnetic-disk or magnetic-tape. This property of the interface is such that it allows data to be transferred from the processor in the invented element to the E;DP-equipment e.g. data which enables user identification to be verified. It is also necessary for the interface to be able to receive signals coming from the EDP-equipment via the write head and to pass these on to the processor inside the invented element. Such an exchange of data makes a variety of operations possible thereby enabling the required results to be achieved, and others also. A coil or coils connected to a driver in the vicinity of the interface can perform these functions if this driver for its part, is able to communicate with the processor.
According to the present invention, there is further provided a method of transferring data between a memory and an electronic data processor device having a floppy disk drive including a diskette station comprising t:he steps of: storing data in a memory disposed in a housing having an exterior form being substantially the same as a diskette such that the housing can be inserted into a diskette station of said electronic data pro~~essor; processing data stored in said memory using digital processing circuitry disposed within said housing and coupled to said memory; converting digital signal output from said di~~ital processing circuitry into magnetic signals to simulate signals generated by a diskette; and coupling data betwe~=n said data transfer device and said diskette station o:E said electronic data processor, wherein said converting and said coupling steps are performed using a coil disposed so as to transfer information to the diskette station.
By the usf~ of a diskette with a magnetic-disk and a cassette with magnet=ic-tape it is possible to install a read/write head inside the diskette/cassette. This enables the magnetic medium (tape or disk) to be used as an intermediate storage-facility in that data supplied by the processor is initially recorded on the medium and then read by the read/write head of the EDP-equipment. Obviously it is also possible for data to be transferred in the opposite direction i.e. recording of data by the read/write head of the EDP-equipment on the medium and the subsequent reading of this data by the read/write head in the diskette or cassette.
According to a further embodiment of the invention the interface of th~~ element, which interface is designed to allow the transfer ~~f data between the element's processor and the EDP-equipment t:zrough the EDP-equipment's own read/write facilities, is an o~~tical interface. The interface of a diskette according vo the invention preferably is designed in a manner that it simulates an optical readable/writable disc.
Examples of embodiments of the present invention will now be described wi~~h reference to the drawings, in which: -Fig. 1 is a smartcard incorporating an interface (Magnetic-Interface-Chip-Card MILK) according to an embodiment of the invention;
Figs. 2 & 3 each show a diskette according to respective embodiments of the invention with and without magnetic-disk (SMAR~C-Diskette);
Figs. 4 to 6 show different types of SMART-Diskette (PIN-SMART and SUPER-SMART-Diskette) according to embodiments of the invention; arid Figs. 7 & 8 each show a cassette according to embodiments of the :_nvent:ion (SMART-Cassette).
The smart card shown in Fig. 1 includes the chip (2) - e.g. processor with integrated memory, the battery (3), and the driver (4). In section (5) in which the magnetic-strip is usually located there is an interface (6) through which data - 6a -can be transmitted between the processor (2) and a magnetic-strip read/write device. In the diagrams a coil symbolises one or more components which are able to generate and receive magnetic-field data.
One of the advantages of a card designed and produced in this way is that stored data (e. g. the validity of the card) can not only be verified but also altered by authorised parties. If any of the information has to be changed it is no longer necessary to replace the card.

If the card is equipped with a numerical display and a key pad (not illustrated) 'the PIN (Personal Identification Number/Password) can be entered into the card itself and not Qn the keyboard of the mach9.ne - this makes it much more difficult to ascertain 'the PIN by illegal means. Basically, any type of communication is possible between the processor of the smart card and the appropriate EDP-equipment. For these types of operations it is necessary for the smart card to have some. sort of display e.g. an LCD.
Fig.2 shows a diskette (7) as invented without a magnetic-disk. In the area (aperture 8) facing the read/write head of the relevant diskette drive the invented interface (6) is located and is connected to the driver (4). The latter is connected to the processor (2) which may itself be connected to additional memory (9).
Again, a battery (3) provides the individual components with electrical power. In addition there is also an electric generator consisting of the rotor (11) - attached to the drive-unit (12) of the magnetic-disk (not illustrated), the stator (13)~and the regulator (14). This regulator (14) controls the generated electric current and/or keeps the battery (3) sufficiently charged. The invented interface (6) at aperture (8) enables communication to take place between the processor (2) and the central computer via its diskette drive. The advantages of this will be elaborated upon at a later stage.

~~(D~~. a~
The diskette (7) shown in Fig. 3 differs from its counterpart in Fig. 2 in that it includes a magne~f;ic-disk (15) and has read/write heads (16 & 17) of known design instead of the magnetic-interface (6) of Fig. 2. It is necessary for the read head (17) and the write head (16) to be located as shown in Fig. 3 sideways next to the aperture (8). In 'this model the data is transferred from 'the processor (2) to 'the central-unit of the related computer, for example in such a way that the head (16) writes this data onto -the magnetic-disk (15) using it as an intermediate memory which is then read by the read/write head of the computer's diskette-drive.
Figs. 4 - 6 show the external appearance of the diskette (7) e. g. with numerical display i. e. key pad (21) and or display (22). The model shown in Fig. 6 has the keypad (21) and/or display (22) in the form of a seperate module (23) attached physically and electrically to the diskette (7) so that it is visible even when the diskette is inside the computer terminal. The card illustrated in Fig. 1 and cassettes shown in Figs. 7 & 8 can 68 equipped with a key pad (21) and/or display (22,23) of this type as required.
The cassettes illustrated in Figs. 7 & 8 show - as' do the diskettes in Figs. 2 & 3 - the processor (2), the battery (3), the driver (4), the (additional) memory (9); the power generator (11, 13) and the regulator (14). The rotor (11) is connected to the drive-system (25) of the magnetic-tape (27).

~C~;:»~.4~~1 _ The model shown in Fig. 7 does not have a magnetic-tape (27).
In -the area marked (26) facing -the read/write head of the cassette-terminal the interface (6) is located. This is able to simulate the magnetic-tape (27) and enables data to be exchanged between the processor (2) and the central-unit of the relevant computer.
The model illustrated in Fig. 8 does include a magnetic-tape (27). Facing this tape {27) is a read/write head (28) of usual design. As described in the case of the diskette (7) in Fig. 3, the data storage (in this case the 'tape - 27) is used as an intermediate storage facility for data 'transmission between the processor (2) and the computer.
A particular advantage of the described diskettes and cassettes is that they have a processor with which procedures such as verification of user authorisation, encryption and decryption of data and protection of copyright can be carried out.
To verfiy user-authorisation a PTN-code is necessary which is entered either on the keyboard of the EDP-equipment and communicated through the relevant interface (6,8,26) into the processor (2) or, if the element itself is equippped with a key pad, entered into its key pad. At this point the PIN is verified, the result of which procedure is passed back to the EDP-equipment via the interface. The alteration of the PIN-code or similar information kept in the processor (2) or its memory (9) is also possible (assuming the necessary authorisation) using a similar procedure.

l~:
It is also possible to use the invented device to check whether the user is working on 'the correct computer.
Accordingly the central computer asks the user for an additional secret code after the PIN has been verified which is also verified by the processor (2)" The result of this procedure can be shown on the display (22). Of advantage here is the display shown in Fig. 6 which allows the result to be read without removing the element from the terminal-socket.
It is of particular advantage also to be able to use the processor (2) in the various elements to encrypt and decrypt data by transmitting plaintext data to the processor (2) through the interface and back in encrypted form throw this interface. For example, message authentication codes and digital signatures based on RSA-algorthm can be generated and verified as well as digital enveloes can be sealed and opened.
In order to use any of the elements as an encryption/
decryption machine it is necessary to load the elements memory units with one or more cryptographic algorithms, secret codes etc. in such a way that they cannot be reproduced.
To prevent unauthorised copying of programmes or sections thereof it is possible to store parts of these or the whole programmes in the elements' processors. A programme is particularly safe from unauthorised reproduction if one section is stored in the EDP-equipments' computer and the rest in the processor (2) of any of the invented elements.

Claims (24)

1. An insertable element comprising:
a housing which is insertable into a disk drive;
an interface, disposed in the housing, for interfacing a memory device in the housing with a read/write head of the disk drive, wherein said interface includes a coil which couples magnetically with the read/write head of the disk drive;
a driver circuit coupled to the coil which sends and receives electrical signals to and from the coil; and a processor coupled to the driver circuit, which sends and receives electrical signals to and from the driver circuit;
wherein tree processor is coupled to the memory device in the housing, such that the coil, driver circuit, and processor thereby interface the memory device with the read/write head of the disk drive.
2. The insertable element according to claim 1, further comprising a power source disposed in the housing and providing power to the interface.
3. The insertable element according to claim 2, wherein the power source comprises at least one battery.
4. The insertable element according to claim 1, wherein the memory device received in the housing stores user data.
5. The insertable element according to claim 1, wherein the housing is insertable into a 3 1/2 floppy disk drive.
6. A data transfer device for use in transferring data between an electronic data processor device having a floppy disk drive including a diskette station for receiving diskettes inserted therein, and a memory device for storing data, said data transfer device comprising:
a housing having an exterior form being substantially the same as a diskette such that the housing can be inserted into a diskette station of said electronic data processor;
a memory device disposed within said housing for storing data to be transferred to said electronic data processing device, digital processing circuitry disposed within said housing and coupled to said memory device;
interface circuitry, disposed within said housing and coupled to said processing circuitry, for transferring data between said data transfer device and said diskette station of said electronic date processor, said interface circuitry including converter circuitry for converting digital signals transmitted thereto from said digital processing circuitry into magnetic signals simulating signals generated by a diskette, said interface circuitry including a coil; and a source of electrical energy operatively coupled to at least said digital processing circuitry.
7. A data transfer device according to claim 6, wherein said interface circuitry is operable to receive data from the electronic data processor and couple said data to said digital processing circuitry for processing by said digital processing circuitry.
8. The transfer device of claim 6, wherein said memory device is operable to store data which may be accessed only upon receipt of an appropriate access code.
9. The data transfer device of claim 6, wherein said processing circuitry is a digital processor operable to perform an authorization verification operation.
10. The data transfer device according to claim 9, wherein said digital processor is operable to perform a user authorization verification operation.
11. The data transfer device according to claim 10, wherein said user authorization verification operation is performed in response to a user entering a personal identification number.
12. The data transfer device according to claim 6, wherein said processing circuitry is operable to perform cryptographic operations.
13. The data transfer device according to claim 12, wherein said processing circuitry is operable to decrypt data.
14. The data transfer device according to claim 12, wherein said processing circuitry is operable to encrypt data.
15. The data transfer device according to claim 6, wherein said source of electrical energy is a battery disposed in said housing and further including charging circuitry for recharging said battery.
16. A method of transferring data between a memory and an electronic data processor device having a floppy disk drive including a diskette station comprising the steps of:
storing data in a memory disposed in a housing having an exterior form being substantially the same as a diskette such that the housing can be inserted into a diskette station of said electronic data processor;
processing data stored in said memory using digital processing circuitry disposed within said housing and coupled to said memory;
converting digital signals output from said digital processing circuitry into magnetic signals to simulate signals generated by a diskette; and coupling data between said data transfer device and said diskette station of said electronic data processor, wherein said converging and said coupling steps are performed using a coil disposed so as to transfer information to the diskette station.
17. A method according to claim 16, further including the step of providing power to at least said processing circuitry via a source of electrical energy disposed within said housing.
18. A method according to claim 16, further including the step of receiving data from the electronic data processor and coupling said data to said digital processing circuitry for processing.
19. A method according to claim 16, further including the step of accessing said memory only upon receipt of an appropriate access code.
20. A method according to claim 16, further including the step of performing by said digital processing circuitry an authorization verification operation.
21. A method according to claim 20, wherein said verification operation is a user authorization verification operation.
22. A method according to claim 21, wherein said user authorization verification operation is performed in response to a user entering a personal identification number.
23. A method according to claim 16, further including the step of performing cryptographic operations using said digital processing circuitry.
24. A method according to claim 23, wherein said digital processing circuitry is operable to decrypt data.
CA002005150A 1988-12-12 1989-12-11 Insertable element for edp equipment Expired - Fee Related CA2005150C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP3841776.6 1988-12-12
DE3841776 1988-12-12
DE3903454A DE3903454A1 (en) 1988-12-12 1989-02-06 ELEMENT INSERTABLE IN IT FACILITIES
DEP3903454.2 1989-02-06

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CA2005150C true CA2005150C (en) 2000-10-10

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JP (1) JPH0786912B2 (en)
AT (1) ATE162321T1 (en)
AU (1) AU625156B2 (en)
CA (1) CA2005150C (en)
DE (2) DE3903454A1 (en)
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ES2114523T3 (en) 1998-06-01
NO300297B1 (en) 1997-05-05
CA2005150A1 (en) 1990-06-12
JPH02276081A (en) 1990-11-09
DE3903454A1 (en) 1990-06-13
DK622989D0 (en) 1989-12-11
JPH0786912B2 (en) 1995-09-20
AU625156B2 (en) 1992-07-02
EP0373411A2 (en) 1990-06-20
EP0373411B1 (en) 1998-01-14
DE58909829D1 (en) 1998-02-19
DK622989A (en) 1990-06-13
AU4602789A (en) 1990-06-14
NO894809L (en) 1990-06-13
EP0373411A3 (en) 1993-03-31
NO894809D0 (en) 1989-12-01
US5159182A (en) 1992-10-27
ATE162321T1 (en) 1998-01-15

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