DE4108249A1 - Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required - Google Patents

Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required

Info

Publication number
DE4108249A1
DE4108249A1 DE19914108249 DE4108249A DE4108249A1 DE 4108249 A1 DE4108249 A1 DE 4108249A1 DE 19914108249 DE19914108249 DE 19914108249 DE 4108249 A DE4108249 A DE 4108249A DE 4108249 A1 DE4108249 A1 DE 4108249A1
Authority
DE
Germany
Prior art keywords
discs
program
specific user
routines
copy protection
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Withdrawn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
DE19914108249
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
GOETTSCHE ANDREAS
Original Assignee
GOETTSCHE ANDREAS
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 GOETTSCHE ANDREAS filed Critical GOETTSCHE ANDREAS
Priority to DE19914108249 priority Critical patent/DE4108249A1/en
Publication of DE4108249A1 publication Critical patent/DE4108249A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • 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
    • G11B23/30—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 with provision for auxiliary signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Abstract

The method is based upon the creation of a small number of fault or error locations on the disc. The locations of the faults are determined and are known by a specific user programme. The disc can only be used successfully when used together with that specific user programme. USE/ADVANTAGE - Protects against unauthorised copying of disc requiring only small amt. of extra space and time.

Description

Die Erfindung betrifft ein Verfahren zum Schutz von Dis­ ketten vor dem unberechtigten Anfertigen von Kopien.The invention relates to a method for protecting dis chain before making unauthorized copies.

Der Schutz von Datendisketten vor einem unberechtigten Kopieren des auf ihnen abgespeicherten Programms macht erhebliche Probleme: die bekannten Verfahren sind re­ lativ leicht zu umgehen, der Platzaufwand auf der Dis­ kette ist erheblich.Protecting data disks from an unauthorized Copy the program stored on them considerable problems: the known methods are right relatively easy to get around, the space on the dis chain is substantial.

Der Erfindung liegt die Aufgabe zugrunde, ein Kopier­ schutzverfahren zu schaffen, das bei einem nur geringen Platzbedarf auf der Diskette mit einem vertretbaren Zeitaufwand nicht unwirksam gemacht werden kann. The invention has for its object a copy to create protection procedures that are only minimal Space requirements on the diskette with a reasonable Time expenditure cannot be made ineffective.  

Erfindungsgemäß wird dieses Aufgabe gelöst durch Ein­ bringen einer Vielzahl von kleinen Fehlerstellen in die Disketten, Erstellen eines Fehlermappings zur Ermittlung der Orte dieser Fehlerstellen, Einbringen einer Vielzahl von Programmroutinen in das Nutzprogramm, die einen Schreibbefehl auf einen als fehlerhaft erkannten Ort der Diskette beinhalten und Beenden des Programmablaufs bei erfolgreichem Ausführen dieses Befehls, und Kopieren dieses um die Routinen ergänzten Nutzprogramms auf die zu schützende Diskette.According to the invention, this object is achieved by a bring a variety of small flaws into the Floppy disks, creating an error mapping to determine the locations of these flaws, bringing in a variety of program routines in the utility program that a Write command to a location recognized as incorrect Include floppy disk and exit the program flow at successful execution of this command and copying this utility program supplemented by the routines on the disk to be protected.

Eine bevorzugte Ausführungsform zeichnet sich dadurch aus, daß die Routinen in dem Nutzprogramm zufällig ver­ teilt angeordnet sind.A preferred embodiment is characterized by this out that the routines in the user program randomly ver divides are arranged.

Es wird also vorgeschlagen, die Diskette, die mit einem Nutzprogramm so beschrieben werden soll, daß dieses Nutz­ programm nur in Verbindung mit ebendieser Diskette ver­ wendet werden kann, mit einer Mehrzahl von feinen mecha­ nischen Fehlern (Löchern) zu versehen. Das auf die Dis­ kette aufgeschriebene Programm beinhaltet über das Pro­ gramm ungleichmäßig verteilt Routinen, die einen Zugriff auf den Ort dieser Fehlerstellen bewirken. Wird der Schreibbefehl ausgeführt, so stürzt das Programm ab, mißlingt der Schreibbefehl - auf der Originaldiskette muß der Zugriff mißlingen - wird das Programm fortgesetzt.So it is suggested to use the floppy disk with a Utility program should be described so that this utility program only in connection with this floppy disk can be used with a variety of fine mecha African errors (holes). That on the dis chain written program includes about the pro grams of unevenly distributed routines that have access affect the location of these defects. Will the Write command executed, the program crashes, the write command fails - must be on the original disk access fails - the program continues.

Bei der Einbringung einer Vielzahl von unregelmäßig über das Programm verteilten derartiger Prüfroutinen besteht praktisch keine Möglichkeit, diesen Schutz unwirksam zu machen.When bringing in a variety of irregularly over the program consists of such test routines practically no way to ineffectively this protection do.

Claims (2)

1. Verfahren zum Schutz von Disketten vor dem unbe­ rechtigten Anfertigen von Kopien, gekennzeichnet durch
  • - Einbringen einer Vielzahl von kleinen Fehlerstellen in die Disketten,
  • - Erstellen eines Fehlermappings zur Ermittlung der Orte dieser Fehlerstellen,
  • - Einbringen einer Vielzahl von Programmroutinen in das Nutzprogramm, die einen Schreibbefehl auf einen als fehlerhaft erkannten Ort der Diskette beinhalten und Beenden des Programmablaufs bei erfolgreichem Ausführen dieses Befehls, und
  • - Kopieren dieses um die Routinen ergänzten Nutzpro­ gramms auf die zu schützende Diskette.
1. Process for protecting diskettes from unauthorized making of copies, characterized by
  • Introduction of a large number of small defects in the diskettes,
  • - creating an error mapping to determine the locations of these error locations,
  • Introduction of a multiplicity of program routines into the user program, which contain a write command to a location on the diskette recognized as faulty, and termination of the program sequence if this command was successfully executed, and
  • - Copy this utility program supplemented by the routines onto the disk to be protected.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Routinen in dem Nutzprogramm zufällig verteilt angeordnet sind.2. The method according to claim 1, characterized in that that the routines are randomly distributed in the user program are arranged.
DE19914108249 1991-03-14 1991-03-14 Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required Withdrawn DE4108249A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914108249 DE4108249A1 (en) 1991-03-14 1991-03-14 Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914108249 DE4108249A1 (en) 1991-03-14 1991-03-14 Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required

Publications (1)

Publication Number Publication Date
DE4108249A1 true DE4108249A1 (en) 1992-09-24

Family

ID=6427270

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914108249 Withdrawn DE4108249A1 (en) 1991-03-14 1991-03-14 Copy protection for floppy magnetic discs - using discs with errors deliberately stored such that specific user programme is required

Country Status (1)

Country Link
DE (1) DE4108249A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174876A2 (en) * 2000-07-18 2002-01-23 DOCdata Germany BMS Berlin Mastering Services GmbH Compact disc with a copy process disturbing area
NL1017631C2 (en) * 2000-04-03 2007-07-03 Hewlett Packard Co Protection against copying of optical discs.
EP1944768A1 (en) 2006-05-12 2008-07-16 CDA Datenträger Albrechts GMBH Optical data carrier with RFID label

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1017631C2 (en) * 2000-04-03 2007-07-03 Hewlett Packard Co Protection against copying of optical discs.
EP1174876A2 (en) * 2000-07-18 2002-01-23 DOCdata Germany BMS Berlin Mastering Services GmbH Compact disc with a copy process disturbing area
EP1174876A3 (en) * 2000-07-18 2003-10-08 DOCdata Germany BMS Berlin Mastering Services GmbH Compact disc with a copy process disturbing area
EP1944768A1 (en) 2006-05-12 2008-07-16 CDA Datenträger Albrechts GMBH Optical data carrier with RFID label

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Legal Events

Date Code Title Description
8181 Inventor (new situation)

Free format text: ERFINDER IST ANMELDER

8133 Disposal/non-payment of the application fee