CN1194303C - Anti-copy method for storage device - Google Patents

Abstract

A method for preventing copying of storage device features that a copying-proof program is used to encode part or all of the main program to be protected, and a check program is used to replace it as main program. The method of the invention can delay or prevent the copying of data and complete the effect of protecting intellectual property rights.

Description

Copy protection method for storage device

technical field

The present invention relates to a method for preventing copying of a storage device, and more specifically relates to a method for protecting data or software main program files in a storage device, so as to prevent or delay the program in the storage device from being copied by others, and achieve The purpose of protecting intellectual property rights.

Background technique

With the increasing popularity of computers, the use of computer software or data has also brought great convenience to people. However, the functions of software are becoming more and more powerful, and the data that computers can store and process are becoming more and more complex. Sometimes and hard work, software publishers must invest human, material and financial resources. However, it is because the writing of software is not easy, so those who are interested in stealing and selling it for cheap will cause heavy losses to software publishers, and make the inventor's intellectual property rights unable to get due protection. Especially in the island of Taiwan, due to the poor concept of intellectual property rights in the past, copying and pirated software prevailed, which made Taiwan a frequent visitor to Section 301 of the United States. In addition to promoting the concept of intellectual property rights and banning imitation and counterfeiting, how to prevent computer software and data from being copied by others is also an important task for protecting intellectual property rights.

General computer data is stored in storage devices such as floppy disks, hard disks (HD), magnetic tapes, magneto-optical disks (MO), optical disks, and integrated circuits, and most of the acts of piracy are to copy the contents of these storage devices , and then use and sell them. In order to prevent the computer data in the storage device from being stolen, various technologies have been used in the past. Taking floppy disks as an example, different formats, multi-tracks, and gap filling can be used—seamless, laser perforated, weak, and file structure Conversion, encryption, etc.; while taking CDs as an example, bad tracks, gaps, oversized files, sub-channel music tracks, etc. have been used in the past. However, the height of the thief is one foot, and the height of the devil is ten feet. There are still traces of the past copying methods. Once the anti-copying method is known, it is very easy to be cracked.

On the other hand, since the file format recorded by the storage device can be a general data file, such as music data (WAV file or MP3 file), film (DAT file or MPG file), picture (GIF file, JPG file or BMP files) or text data, etc. These files usually have a predetermined format for reading or playing by browser programs. Anti-piracy, because it can be used as a way of piracy after being transcribed after playing, so files in this data format are very difficult to prevent piracy. Another file format recorded in the storage device may be an installation program or a main execution file (hereinafter collectively referred to as the main program), which is usually an installation program or an activation program for activating an application program, and is generally If the main program cannot be read by the browsing program, if the main program can be protected against copying, then the intellectual property rights of the application program can be effectively protected without causing inconvenience to the user.

Contents of the invention

Therefore, the object of the present invention is to provide a copy-proof method for a storage device, that is, a method for protecting the main program file of data in the storage device. The method is divided into three stages. The first stage is the pre-work, which is to make three program parts, which can be processed by the main program to be protected. The functions of these three programs are described below: first, make a copy protection Program, which can encode all or part of the main program to be protected, and use a "specific prime number" data conversion method to move data. This program can also add a check code at a specific position, because the check code is It is processed by the data conversion method of "specific prime number", so it can prevent the moving action of the general copy program (accessed in units of 8 bits); then create a link program, which can link the copy protection program and the main program in the Together, a combined program is formed to execute the file format, and the main program is encoded as the data part of the combined program; finally, a check program is made to replace the new main program that becomes the storage device, so as to compare the check code Work to identify whether the storage device is stolen. The second stage is the test and production steps. After the main program to be protected is encoded by the aforementioned copy protection program and linked through the link program, a combined program is formed by merging the original main program and the copy protection program, and then a small amount of copying of the master , and add a check code; if the check program cooperates with the combination program to interpret correctly, it can be mass-produced. The final stage is to check the checksums one by one by using the checking program and cooperating with the anti-copy program. Since the data is moved in a special numerical way, if it is copied, the checksum will have errors, so the copying of the data can be delayed or stopped.

The object of the present invention is achieved in this way: a method for preventing copying of a storage device is used to prevent the main program and coded data stored in the storage device from being copied so as to protect software data. It is characterized in that: the method includes pre- The operation method, the method for cooperating with the data to be protected, and the method for interpreting the storage device, the pre-operation method includes the following steps:

(1) According to the analysis of the operating environment of the computer, make a copy protection program, which can encode all or part of the main program to be protected, and use a specific prime number data conversion method to move data, said The specific prime number is a unit of data transfer, and the program can still use the data conversion method of the specific prime number to add a check code at a specific position, and the specific position is located in the main program of the storage device;

(2) Make a link program, which can link the copy protection program and the main program together to form a combined program file, and the main program is encoded as a data part in the combined program;

(3) Create an inspection program that can replace the original main program for inspection work;

The method for cooperating with the data to be protected includes the following steps:

(1) Read the main program of the data to be protected, and after partial or complete coding of the copy protection program, the connection program can be connected with the copy protection program to form a combined program, and record the time, location, as the parameter basis for the subsequent check code;

(2) If the storage device is re-readable and readable, insert the check code, and after the check program is tested to be correct, the production can be confirmed;

(3) If the memory is a rewritable optical disc that cannot be read repeatedly, first add a check code to the rewritable disc, and then send it to the stereotype, and add a check code to the stereotype, and the check program will test it correctly. , the production can be confirmed;

The storage device interpretation method includes the following steps: execute the check program, restore the original coded data, and compare the check code. If the comparison is wrong, it means that the storage device is not made for the original version, that is, it will jump out and not be executed.

Wherein, in the method for interpreting the storage device, a step of checking the memory may be added for further comparison.

The anti-copy program reads or moves in a special prime number mode.

Wherein, in the method for reading the storage device, a call can still be made to check from time to time, so as to delay or prevent copying.

The re-readable and writable storage devices include floppy disks, high-capacity floppy disks, magneto-optical disks, and hard disks.

The anti-copy program checks the check code according to the check method defined in the check program.

Description of drawings

Fig. 1 is a flow chart of the pre-operation program of the present invention.

Fig. 2 is a flow chart of testing and production steps of the present invention.

Fig. 3 is a flow chart of the interpretation procedure of the present invention.

Detailed ways

Refer to the flow charts of the embodiments of the storage device copy protection method of the present invention shown in FIGS. 1 to 3 . The method of the present invention initially performs an internal pre-operation to create a copy protection program, a link program and a check program.

The main job of the anti-copy program is to encode all or part of the main program to be protected (executive files such as .COM, .BAT, .EXE, etc.), and set it in a "specific prime number" way To perform data conversion to prevent duplication of copy programs. More specifically, since the current data transfer operations for storage devices, such as floppy disks or optical discs, are generally performed in multiples of 8, and the copy protection program of the present invention transfers data with a specific prime number, it can record specific Data, and the general copy program cannot move these specific data, so this mode can be used to add check codes to the data, and can make the check codes be applied in virtual and real ways, that is, cooperate with the check codes and the set parameters (see the description below), A discriminative truth table is formed, and the format of the truth table is determined by the inspection procedure described later, so that those who intend to copy cannot be traced, and even be misled.

The linking program can link the copy protection program and the main program together to form a combined program (an execution file), and the main program is encoded as a data part in the combined program.

The inspection program is used to replace the new main program of the storage device to compare the check code to identify whether the storage device is stolen. Since the time and place information can be recorded as the check code parameters, it can further hinder Copying.

Next is the second stage of testing and production steps, after the main program to be protected is coded by the aforementioned copy protection program and linked through the link program, a combined program is formed by merging the original main program and the copy protection program (for a execution file), and the main program is coded into the data part of the combined program, and the anti-copy program part included in the combined program can be used as the main program to decode, perform specific prime number conversion and record check code. Then, the check program is replaced by the new main program of the storage device to perform the check code comparison. At this time, the software master to be protected can be completed, and the time and place can be recorded, so as to check the check code as the check program in the future. based on the parameters.

Then, according to the characteristics of the storage device to be protected, a check code is added. If the storage device is re-readable, such as a floppy disk, etc., first copy the required number of pieces with a duplicator, and then put the check code into the disk piece by piece (multiple mode); if the memory is non-repeatable For reading and writing CDR, the first master film is made of RW film, modified according to the data of RW, and then the check code is added and then transcribed to CD-R film, and sent to the compression factory to make the master plate. During the production of the master plate, the tablet press factory can add another batch of check codes (different for each plate) according to the designer’s specifications during the stereotype process, and then add the last batch of check codes after the master plate is completed. Mass production only after correctness. These check codes can be planned according to the time planned by the software master film as a parameter, and are controlled by the check program. Since it is difficult to completely copy the check code by copying the film, there are reading errors in the check program. , it can be interrupted immediately, only if all the check codes are correct, the original software main program can be restored and the original function can be executed. Furthermore, in order to ensure safety, inspection procedures may be performed from time to time for further precautions. In this way, unless the software is executed by the original version, there will be errors, so the time for the software to be copied can be slowed down, or the software can be prevented from being copied.

In other words, since the present invention uses a specific prime number, such as 3, 5, 7, 11... etc., as the unit for moving data, it can avoid the copying behavior of a general copy program. Furthermore, the specific prime number conversion method is used to add a check code, And cooperate with the production time and place of the master film to make a truth table for judgment to check the check code. Using this cross-blocking prevention method can increase the difficulty of copying and reduce the damage of software designers. Therefore, it is indeed an industrial value, and Inventions and creations that protect intellectual property rights.

Claims (6)

1. A method for preventing copying of a storage device, which is used to prevent the main program and coded data stored in the storage device from being copied so as to protect software data. The method and the method for storage device interpretation, the described pre-operation method comprises the following steps: (1) According to the analysis of the operating environment of the computer, make a copy protection program, which can encode all or part of the main program to be protected, and use a specific prime number data conversion method to move data, said The specific prime number is a unit of data transfer, and the program can still use the data conversion method of the specific prime number to add a check code at a specific position, and the specific position is located in the main program of the storage device; (2) Make a link program, which can link the copy protection program and the main program together to form a combined program file, and the main program is encoded as a data part in the combined program; (3) Create an inspection program that can replace the original main program for inspection work; The method for cooperating with the data to be protected includes the following steps: (1) Read the main program of the data to be protected, and after partial or complete coding of the copy protection program, the connection program can be connected with the copy protection program to form a combined program, and record the time, location, as the parameter basis for the subsequent check code; (2) If the storage device is re-readable and readable, insert the check code, and after the check program is tested to be correct, the production can be confirmed; (3) If the memory is a rewritable optical disc that cannot be read repeatedly, first add a check code to the rewritable disc, and then send it to the stereotype, and add a check code to the stereotype, and the check program will test it correctly. , the production can be confirmed; The storage device interpretation method includes the following steps: execute the check program, restore the original coded data, and compare the check code. If the comparison is wrong, it means that the storage device is not made for the original version, that is, it will jump out and not be executed. 2. The copy protection method of a storage device according to claim 1, wherein a step of checking the memory may be added in the method for interpreting the storage device for further comparison. 3. The copy protection method of a storage device according to claim 1, wherein the copy protection program is read or moved in a special prime number manner. 4. The method for preventing copying of a storage device according to claim 1 or 2, wherein in the reading method of the storage device, a call can still be made to check from time to time, so as to delay or prevent copying. 5. The copy protection method for a storage device according to claim 1, wherein the re-readable and writable storage device includes a floppy disk, a high-capacity floppy disk, a magneto-optical disk, and a hard disk. 6. The copy protection method of a storage device according to claim 1 or 3, wherein the copy protection program checks the check code according to the check method defined in the check program.

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