JPS58132841A - System for preventing use of copy of computer program - Google Patents

Abstract

PURPOSE:To prevent the use of a copy of a computer program, by storing a random number, which is obtained from contents of a main storage device, as an identification code in an auxiliary storage device when the computer program is registered. CONSTITUTION:When a program identification code area FD3 of a floppy disc 4 is blank, contents stored in an area FD1 for program register and an area F for storage of program contents of the disc 4 are registered on memory areas MD1 and MD2 of an auxiliary storage device 3 such as a magnetic disc. Contents of a main storage device 2 consisting of an IC in the unstable state at the power-on time are added to obtain a random number, and this random number is written as the identification code of the computer device and the program in areas MD3 and FD3 of the device 3 and the disc 4. When the area FD3 is not blank, identification codes of areas MD3 and FD3 are collated with each other, and contents stored in areas FD1 and FD2 are registered in areas MD1 and MD2 if they coincide with each other. If they do not coincide with each other, contents of areas FD1 and FD2 are not registered on the device 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the Combi-tagrogram copy prevention scheme.

Conventionally, as a means to prevent copying and use of Ob/Yon's paid computer programs (hereinafter referred to as programs), different identification symbols (or numbers) have been stored for each delivery destination, such as storing a program for starting a computer machine. There is R
A floor that stores OM (Read Only Memory) and programs.

By storing the identification code in advance on a PC disk and checking its identification symbol, it is impossible to use it with other computers.

However, the above-mentioned conventional copy prevention means has the disadvantage that the identification symbol of the conbeater device and its program must be changed for each delivery destination.

The purpose of the present invention is to use the same computer equipment and its programs no matter where it is delivered;
It is an object of the present invention to provide a system for preventing duplicate use of combination programs and tag programs, which prevents unauthorized use of programs between combination devices.

A feature of the present invention is that the main memory device consisting of a semiconductor integrated circuit (IC) memory etc. has an undefined content when the power is turned on. When a computer program is first registered in the computer program, a means is provided for reading and calculating the contents of the main memory to obtain a random number, and storing the random number in the auxiliary memory and the computer program as its identification symbol. There is a particular thing.

The present invention will be described in detail below along with examples.

FIG. 1 is a diagram showing the configuration of an embodiment of the Combi-tagram copy prevention system of the present invention.

In the figure, 1 is the central processing unit (CPU) of the CO/BI device;
2 is a main storage device, 6 is an auxiliary storage device such as a magnetic disk,
4 is a floppy disk in which a program is stored in advance; 54; j70. This is a P-disk device that is used to read and write programs on the P-disk 4.

FIG. 2 shows the auxiliary storage device 3 and the flowchart of the embodiment of FIG.
4 is a diagram showing a memory area of a P disk 4. FIG. In the figure,
MD is a memory area of an auxiliary storage device such as a magnetic disk, MD+ is a memory area where programs for registering programs are stored, MD is a memory area where program contents are stored, and MD is a computer device. This is a memory area that stores an identification symbol of the program. FD is a memory area of a floppy disk, FD is a memory area where programs for program registration, predetermined conditions, etc. are stored, FDt is a memory area where program contents are stored, FD is a computer device and its program. This is a memory area that stores identification symbols.

Next, the operation of this embodiment will be explained.

1 and 2, when the floppy disk 4 is set in the floppy disk device 5, whether the memory area FD of the floppy disk 4 is blank (initial,
state).

(1) If the memory area FD is blank, 70,
The programs stored in the memory areas FD+ and FD of the disk 4 are transferred to the memory area MD of the auxiliary storage device 3 such as a magnetic disk.

and register with M D t. Next, the semiconductor integrated circuit (I
C) Focusing on the fact that the contents of the main memory device 2 consisting of memory etc. are undefined when the power is turned on, the contents of the main memory device 2, that is, the data from the 1st address to the last address, are calculated by ignoring digit errors. The number (random number) is stored in the memory area M of the auxiliary storage device 3 and the floppy disk 4 as an identification symbol of the combiner device and its program.
Write to Ds and FD.

(2) If the memory area FDj is not blank, the identification symbol (number) stored in the memory area MD of the auxiliary storage device 3 and the memo IJ of the disk 4 are stored.
When the identification symbols (numbers) stored in the floppy disk 4 match, the programs stored in the memory areas FD and FD of the floppy disk 4 are transferred to the auxiliary storage device 3. Register in memory areas MD and MD+.

When the two identification symbols (numbers) do not match, the programs stored in the memory areas FD1 and FD of the disk 4 are not registered in the auxiliary storage device 3.

In this way, unauthorized use of the program is prevented.

As explained above, according to the present invention, the same ROM and program can be used for the combination device and the same program for each delivery destination, without having to create different ones, making it extremely easy to create the same ROM and program. Become. In addition, it is not necessary to manage the identification of conbeater devices and programs for each delivery destination. Furthermore, even if additional orders for paid programs are received at a later date, there is no need to create programs with numbers assigned to each delivery destination.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing the configuration of an auxiliary storage device and a memory area of a floppy disk in the embodiment of FIG. 1. 1 Central processing unit 2 Main storage device 3 Auxiliary storage device 470. PDisk 570, PDisk device MDs, FDs, memory area where identification symbols are stored Agent Patent Attorney Aki 1) Shu Ki

Claims (1)

[Claims] When first registering a combo program in the auxiliary storage of a computer device, the contents of the main memory are read and calculated to obtain a random number, and the random number is stored in the auxiliary storage and the combo tab program. - A method for preventing the use of tablogram duplication.