IT1235448B - Security system for disc resident programs - Google Patents

Security system for disc resident programs

Info

Publication number
IT1235448B
IT1235448B IT8348442A IT4844283A IT1235448B IT 1235448 B IT1235448 B IT 1235448B IT 8348442 A IT8348442 A IT 8348442A IT 4844283 A IT4844283 A IT 4844283A IT 1235448 B IT1235448 B IT 1235448B
Authority
IT
Italy
Prior art keywords
disc
master
detector
code
signal
Prior art date
Application number
IT8348442A
Other languages
Italian (it)
Other versions
IT8348442A0 (en
Inventor
Huba L Toth
Arpad Paul Toth
Original Assignee
Fortune Systems Corp
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 Fortune Systems Corp filed Critical Fortune Systems Corp
Publication of IT8348442A0 publication Critical patent/IT8348442A0/en
Application granted granted Critical
Publication of IT1235448B publication Critical patent/IT1235448B/en

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
    • G06F21/70—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
    • G06F9/00—Arrangements for program control, e.g. control units

Abstract

The system is for disc resident computer programs, protecting them against illegal access and checking for system compatibility. This is achieved with a detector which generates the program protection signal when a new disc is entered in the system. A noncompatible disc is rejected. A master detector identifies a master disc and the security code is recorded on a new master. The detector circuit includes a register which holds the system code and a comparator which compares the disc code with the system code and produces the enabling signal if they agree. A master detector generates the master signal when a master is present. This signal is recorded on the disc if it is identified as new.
IT8348442A 1982-06-07 1983-06-07 Security system for disc resident programs IT1235448B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38548082A 1982-06-07 1982-06-07

Publications (2)

Publication Number Publication Date
IT8348442A0 IT8348442A0 (en) 1983-06-07
IT1235448B true IT1235448B (en) 1992-07-29

Family

ID=23521544

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8348442A IT1235448B (en) 1982-06-07 1983-06-07 Security system for disc resident programs

Country Status (7)

Country Link
JP (1) JPS5917655A (en)
KR (1) KR840005225A (en)
CA (1) CA1199125A (en)
DE (1) DE3320378A1 (en)
FR (1) FR2528196B1 (en)
GB (1) GB2123597B (en)
IT (1) IT1235448B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8323283D0 (en) * 1983-08-31 1983-10-05 Univ Strathclyde Copyright protection device
EP0203066A1 (en) * 1984-02-03 1986-12-03 GUIGNARD, Paul Security and usage monitoring
JPS60196863A (en) * 1984-03-21 1985-10-05 Mitsubishi Electric Corp Protecting method of chargeable program
JPS60196862A (en) * 1984-03-21 1985-10-05 Mitsubishi Electric Corp Protecting method of chargeable program
JP2553495B2 (en) * 1985-05-14 1996-11-13 キャダムシステム 株式会社 Program keyboard mechanism
EP0204154A3 (en) * 1985-06-03 1988-11-09 Peter Ginkel Software protection and identification system
JPS6220031A (en) * 1985-07-19 1987-01-28 Nec Corp Software protecting system
DE3704113C2 (en) * 1987-02-11 1995-02-09 Burkhard Panier Security container for transporting and storing flat data carriers
JPS63253568A (en) * 1987-04-09 1988-10-20 Victor Co Of Japan Ltd Digital signal recording and reproducing device
DE3806414C2 (en) * 1988-02-29 1996-05-23 Thomson Brandt Gmbh Procedure for copy protection in recorders
JPH0638226B2 (en) * 1990-11-30 1994-05-18 東京電気株式会社 Business processing device
DE4219695A1 (en) * 1992-06-16 1993-12-23 Compass Business Computer Gmbh Protection apparatus for authorisation dependent computer use - has generator producing coded signal in form of output signal from data carrier e.g. diskette, concerned.
EP0640924A3 (en) * 1993-08-17 1997-04-23 Sony Corp Data reproducing apparatus.
JP3534646B2 (en) 1999-04-21 2004-06-07 株式会社ソニー・コンピュータエンタテインメント Disk-shaped recording medium, apparatus and method for reproducing this medium

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368207A (en) * 1965-05-12 1968-02-06 Ibm File protection to i/o storage
US3585606A (en) * 1969-09-12 1971-06-15 Ibm File protect circuit and method
GB1329721A (en) * 1970-05-26 1973-09-12 Plessey Co Ltd Data processing devices
US3890601A (en) * 1974-03-11 1975-06-17 Philco Ford Corp Password operated system for preventing unauthorized or accidental computer memory alteration
US3996449A (en) * 1975-08-25 1976-12-07 International Business Machines Corporation Operating system authenticator
GB1525292A (en) * 1976-04-30 1978-09-20 Emi Ltd Identification of records
JPS57111792A (en) * 1980-12-29 1982-07-12 Fanuc Ltd Program copying preventing system
GB2113432A (en) * 1981-12-15 1983-08-03 Little Genius Limited Data protection system
GB2112971B (en) * 1981-12-15 1985-10-02 Little Genius Limited Data protection system
EP0084441A3 (en) * 1982-01-19 1984-08-22 Tabs Limited Method and apparatus for the protection of proprietary computer software

Also Published As

Publication number Publication date
FR2528196A1 (en) 1983-12-09
DE3320378C2 (en) 1987-06-19
KR840005225A (en) 1984-11-05
DE3320378A1 (en) 1983-12-15
FR2528196B1 (en) 1988-05-27
IT8348442A0 (en) 1983-06-07
GB2123597A (en) 1984-02-01
GB2123597B (en) 1986-04-23
GB8315640D0 (en) 1983-07-13
JPS5917655A (en) 1984-01-28
CA1199125A (en) 1986-01-07

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