EP0040198A1 - Systeme d'ordinateur - Google Patents

Systeme d'ordinateur

Info

Publication number
EP0040198A1
EP0040198A1 EP80901852A EP80901852A EP0040198A1 EP 0040198 A1 EP0040198 A1 EP 0040198A1 EP 80901852 A EP80901852 A EP 80901852A EP 80901852 A EP80901852 A EP 80901852A EP 0040198 A1 EP0040198 A1 EP 0040198A1
Authority
EP
European Patent Office
Prior art keywords
computer
received
terminal
coded signal
signal
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Withdrawn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
EP80901852A
Other languages
German (de)
English (en)
Inventor
Reginald Nevill Da Costa Porter
Derek Reginald Taylor
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.)
Mastiff Security Systems Ltd
Original Assignee
Mastiff Security Systems Ltd
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
Priority claimed from GB8021511A external-priority patent/GB2087606A/en
Application filed by Mastiff Security Systems Ltd filed Critical Mastiff Security Systems Ltd
Publication of EP0040198A1 publication Critical patent/EP0040198A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
    • G06F21/35—User authentication involving the use of external additional devices, e.g. dongles or smart cards communicating wirelessly
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • 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
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • 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
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence

Definitions

  • a typical computer system has a main frame computer coupled to a computer terminal, or some
  • peripheral device such as a cheque reader, coupled to the main frame computer through a data bus and an address bus.
  • the peripheral device can be used by someone remote- from the main frame computer for addressing the computer, and
  • An object of the present invention is to provide some protection of such a system against operation of the terminal or peripheral
  • a computer terminal or other peripheral device has a receiver and a detector capable of detecting whether the receiver is
  • the coded signal may be provided by a pocket token suitable for hands-free operation, that is to
  • the peripheral device has a latch which normally prevents operation but which can be released if the coded signal is being received. Again it can be arranged that if the coded signal is not being received, the power supply
  • the detector can be arranged to set the peripheral device if coded signals are being received, so that the peripheral device can respond to an interrogation from the main fra e ⁇ computer by delivering a signal
  • a detector of a presence at the peripheral device for example a photoelectric device, or an
  • OM >v responsive to the presence of a person at the peripheral device for rendering the peripheral device in-operative unless coded signals are also being received.
  • the bus between a main frame computer and a peripheral device includes an integrity protection unit which normally passes signals in either direction, but which can be programmed so that certain signals can only be passed at pre-programmed times 10. or perhaps can only be arranged to pass certain signals if they are passing in one direction rather than the other.
  • FIGURE 1 is a diagram of a single computer protection system
  • FIGURE 2 is a diagram of a multiple terminal 20. system
  • FIGURE 3 is a diagram of a system similar to FIGURE 1, but with a body sensing feature
  • FIGURE 4 is a diagram of an arrangement enabling a computer terminal to be interrogated 25. by a main frame computer before the main frame computer.responds to operation of the terminal;
  • FIGURE 5 is a diagram of a system for protecting a computer system by means of an integrity protection unit. 30.
  • a computer terminal 11 is connected by lines 12 to a computer, through lines 13 to a keyboard, through lines 14 to a visual display unit, and through a line 15
  • the terminal contains control electronics indicated generally at 16, and connected to the line 15 through a normally open relay contact 17.
  • a pick-up aerial 18 which is shown as pos itionedwithin the terminal,
  • signals are being picked up at 18. If so, the detector 21 is arranged to hold the contacts 17 closed, so that the control electronics 16 can be energised from the supply.
  • control electronics 16 are not energised and operation of the keyboard is ineffective.
  • FIGURE 2 shows a modification of the
  • FIGURE 25 arrangement of FIGURE 1, suitable for use where there are a number of terminals 11, and where it is desired that a terminal can be operated if the operator is carrying any one of a number of differently coded tokens.
  • the output
  • each amplifier 19 is connected to a different circuit
  • OMPI input of a multiple code detector 22 which is arranged, if it detects that one of the appropriate coded signals is present,to supply through a delay unit 23 a signal to operate a relay 24 controlling the normally-open contact
  • the delay may,for example, be adjustable in one minutes steps to be anything between 1 and 5 minutes .
  • Either of the arrangements of FIGURES 1 and 2 may be used in conjunction with a body sensor, as indicated in FIGURE 3.
  • the body sensor may for example,
  • sensor it can be arranged that a normally- closed contact 26 is held open as long as a body is being sensed.
  • the contact 26 is connected in parallel with the normally-open contact 17 which is closed when an appropriate signal is picked up at 18. In this case
  • the relay 24 is operated from a timer 23 which is arranged to open the contacts 17 if a body is being sensed but no appropriate signal is being picked up, that is if both contacts 26 and 27 are open, for longer than a short delay time.
  • the delay time will allow the authorised
  • the timer 23 may in addition to,or instead of, operating the switch 17, operate an alarm.
  • FIGURE 4 has the feature that a main frame computer 31 can interrogate a terminal
  • the terminal has an aerial 18 as already described, and an amplifier 19 and a detector 21. The difference
  • the detector 21 is coupled to the control electronics 16 through interrogation lines 34. It is then not necessary to have a latch or means for cutting off the power supply to the terminal because the main frame computer can be programmed so that
  • the computer 31 interrogates the terminal before responding to instructions.
  • the interrogation lines 34 are coupled to the electronics 16 so that if a token 33 is
  • the electronics will be set perhaps by the closing of a switch, or by the setting up of an appropriate code, or in some other way to be able to respond to the interrogation from the main frame computer 31, over lines 12.
  • a modem 37 that is a device capable of modulating and demodulating coded signals .
  • protection unit 41 can be connected in the buses
  • the unit 41 is then programmed to allow signals to pass only in accordance with certain conditions.
  • the unit 41 might be programmed so that it will not
  • the unit 41 may be programmed so that it will only pass information from a peripheral device for entering information in the
  • main computer if the information is passed at a certain time, which will be a time when authorised people know that that type of information can be fed to ' the main computer. • Anybody fraudulently trying to feed such information to the main computer ,
  • Such a computer integrity protection unit 41 can be included in series in the data and address buses leading to a peripheral device 42,other than by way of a modem and Post Office line, and the unit 41
  • the portable token referred to at 33 will generally be one that can be carried in the pocket or the handbag of an authorised terminal operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
  • Communication Control (AREA)

Abstract

Une structure principale d'ordinateur (31) est couplee a un terminal d'ordinateur (11 ou 32) par l'intermediaire de bus de donnees et d'adresses (12, 38, 39). Le terminal (32) comprend des reseaux electroniques de commande (16) couples a un affichage (en 14) et a un clavier (en 13) et egalement couples a un detecteur (21) si un signal code est recu (en 18) provenant d'un jeton (33) que porte l'operateur du terminal sans qu'il ne le touche avec ses mains. Si les signaux sont recus en (18), le terminal (11) peut fonctionner, soit parce qu'il recoit son alimentation de puissance (en 15), soit parce qu'il n'est pas deverrouille, soit parce qu'il est interroge par l'ordinateur (31) et donne une reponse appropriee.
EP80901852A 1979-10-09 1980-10-07 Systeme d'ordinateur Withdrawn EP0040198A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB7935020 1979-10-09
GB7935020 1979-10-09
GB8021511A GB2087606A (en) 1980-07-01 1980-07-01 Computer Systems
GB8021511 1980-07-01
GB8029815 1980-09-16
GB8029815 1980-09-16

Publications (1)

Publication Number Publication Date
EP0040198A1 true EP0040198A1 (fr) 1981-11-25

Family

ID=27260774

Family Applications (2)

Application Number Title Priority Date Filing Date
EP80901852A Withdrawn EP0040198A1 (fr) 1979-10-09 1980-10-07 Systeme d'ordinateur
EP80303565A Withdrawn EP0027058A1 (fr) 1979-10-09 1980-10-09 Système d'ordinateur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP80303565A Withdrawn EP0027058A1 (fr) 1979-10-09 1980-10-09 Système d'ordinateur

Country Status (5)

Country Link
EP (2) EP0040198A1 (fr)
JP (1) JPS56501302A (fr)
DK (1) DK229681A (fr)
ES (1) ES8200958A1 (fr)
WO (1) WO1981001063A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101772A1 (fr) * 1982-09-01 1984-03-07 Jerome Hal Lemelson Systèmes de sécurité pour un ordinateur
US4591854A (en) * 1982-10-12 1986-05-27 Roundel Electronics Limited Touch control identification system with portable encoder
FR2554936B1 (fr) * 1983-11-10 1986-08-29 Saulnier Dominique Systeme d'echange d'informations a etiquettes electroniques
ATE164693T1 (de) * 1991-01-22 1998-04-15 Skidata Ag Einrichtung zur berechtigung der bedienung eines gerätes mit einer betätigungseinheit
FR2736451B1 (fr) * 1995-07-06 1997-09-26 Monetel Lecteur de cartes sans contact a clavier de selection de service
US20040215415A1 (en) * 2003-02-18 2004-10-28 Mcintosh Donald D. Access-protected programmable instrument system responsive to an instrument-pass

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508205A (en) * 1967-01-17 1970-04-21 Computer Usage Co Inc Communications security system
GB1297279A (fr) * 1969-07-09 1972-11-22
US3643219A (en) * 1970-03-13 1972-02-15 Raytheon Co Visual display system
BE791039A (fr) * 1971-11-08 1973-05-07 Lewis Security Syst Ltd Systemes de securite
CA1004362A (en) * 1972-04-11 1977-01-25 Gretag Aktiengesellschaft System for the individual identification of a plurality of individuals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8101063A1 *

Also Published As

Publication number Publication date
WO1981001063A1 (fr) 1981-04-16
ES495779A0 (es) 1981-11-16
JPS56501302A (fr) 1981-09-10
ES8200958A1 (es) 1981-11-16
EP0027058A1 (fr) 1981-04-15
DK229681A (da) 1981-05-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19811125

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PORTER, REGINALD NEVILL DA COSTA

Inventor name: TAYLOR, DEREK REGINALD