JPS62251833A - computer system - Google Patents

Abstract

PURPOSE:To prevent a program to be used by a device other than a specified one by reading out the program only when the device coincides with device discriminating information previously registered in an external storage medium. CONSTITUTION:A system forming program 9 stores a random number of eight digits generated from a random number generating part 3 at the formation of the system in an area 5. The value becomes the discrimination number of a processor. The information can be used only by the system forming program 9, and once the information is set up, the information may not be changed. At the registration of provided software, the system forming program stores the discriminating information stored in the area 5 in a discriminating information setting area 7 of an external storage medium 6. An operating system 10 compares the discriminating information of the area 5 with the information of the medium 6, and only at the time of coincidence, reads out instruction data.

Description

Detailed Description of the Invention: 3.5allJI(7) Detailed, G11l Explanation [Field of Industrial Application] The present invention relates to a computer system, and particularly to a system that separately provides a processing device If and a program running thereon. The present invention relates to a computer system in which a provided program can be executed only on a processing device having proper authority.

[Conventional technology]

Conventionally, when protecting software, in order to run the software only on a designated processing device, a special hardware circuit that holds individual information corresponding to the provided software is provided along with the provided software.
A method was adopted to protect the software by determining whether it was installed on a processing device. According to this method, in order to run multiple pieces of provided software on one processing device, it is necessary to add multiple special hardware circuits, which is disadvantageous in terms of cost, and also requires the implementation of the processing device. Since there is also an upper limit on the area, there was a problem in that the software that could be executed was limited.

Furthermore, it is necessary to install the special hardware circuit in the processing device before executing the software, which poses a problem that it is difficult to use. As a method for solving these problems, a software protection processing method as described in Japanese Patent Laid-Open No. 50-231650 has been proposed.

According to this, when running software on a designated processing device for the first time, or when copying the contents of an external storage medium, the processing device's CP[J-LD is written to a special area of the storage medium. After that, both presses are compared, and only when they match, the software is allowed to operate.

Generally, the CPtJ-T O of a processing device is 5! J construction number etc. are adopted and are provided to each processing device individually in the switch circuit. In the above-mentioned Japanese Patent Laid-Open No. 59-231650, no consideration was given to the provision of CI) U-ID.

[Problems to be solved by the invention] However, as in the conventional switch circuit, CI'
The method of configuring LJ-11) increases the hardware cost by 1, and requires unique switch settings for each processing device during manufacturing, which is extremely inconvenient for manufacturing. was there.

An object of the present invention is to solve the second conventional problem, to provide a computer system that does not require hardware such as a special switch circuit, and is capable of software protection processing.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a computer system that separately provides software consisting of a processing device and a program that runs on the processing device. It is equipped with a nonvolatile memory and a random number generation means, and when defining the system configuration, the random number generated by the random number generation means is
As the device identification information of the processing bag 2t, the device identification information is stored in the non-volatile memory, and at the same time, the device identification information is stored on a recording medium in which command data of the software to be provided is stored, and from the recording medium written in -. When reading the instruction data of the software provided above, the device identification information stored in the nonvolatile memory is compared with the device identification information stored in the recording medium, and only if they match, the instruction data is read. It is characterized by reading.

[action] When defining the system configuration for a specified processing unit.

1 A random number generator generates a random number, stores the value as CI" (J -1,1) in nonvolatile memory, and at the same time, when software is run on the processing device for the first time, the record where the software is stored is stored. CI) [J-11) stored in the above non-volatile memory in the medium
When writing the software and reading the software from the recording medium, C I' LJ -f I') stored in the non-volatile memory in the L processing device.

(:IJJ-ID (hereinafter referred to as [processing device identification information j)] stored in the recording medium, and the above software is read only if they match.9 is an embodiment) Below 1 : An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration diagram of a computer system showing an embodiment of the present invention.

In FIG. 1, ■ is a processing device that loads the provided software program onto the operating system IO and performs various processes, and 2 is a battery backup memory 4.
3 is a random number generator provided according to the present invention (the configuration of the random number generator may be realized by either software or hardware); 4 is a battery backup provided according to the present invention. A memory (hereinafter simply referred to as "memory"), 5 is an area of the memory 4 in which processing device identification information is stored, 6 is an external recording medium in which the provided software is stored, and 7 is an area in which the processing device identification information in the provided software is stored. The processing device identification information setting area to be set, 8 is the program storage area where the program in the software is stored, 9 is the system generation program for generating the system, 10 is the processing device identification information in the memory 4 11 is a main memory (RAM) that stores the loaded program.

The processing device 1 includes a battery 2. From the main memory 11° random number generation means 3 and the battery 2, There is a memory 4 which receives power supply. The random number generator 3 has a function of generating random numbers, and in this embodiment, it is assumed that an 8-digit numerical value is generated as a random number. Within the memory 4 is an area 5 for storing processing device identification information. On the other hand, the external recording medium 6 in which the provided software is stored has a processing device identification information setting area 7 and a program storage area 8 in predetermined areas. The system generation program 9 is a program for generating a system, and is loaded into the processing device 1 and executed.

The system generation program 9 stores in area 5 an 8-digit random number generated by random number generation H1+3 during system generation. For example, the random number generated by the random number generator 3 is "8201533bi."

If so, that value becomes the processing device identification information. memory 4
is due to battery 2? Since it is supplied with LE ea+, the information remains even if the power to the processing device L is turned off.The processing device fef gi information can only be handled by the system generation program, and -nJ is specified. and will not change. The system generation program 9 also has a registration function for registering provided software. This registration function generally registers the version, creation date, etc. of the provided software, but in this embodiment, it also reads out the processing device identification information stored in area 5 and registers the version and creation date of the provided software. The information is stored in the processing device identification information setting area 7 in the external recording medium 6.

In this way, the normal operating system 1o, in which the registration of the provided software by the system generation program 9 is completed, is loaded into the processing device 1 after the system generation is completed. However, in the operating system IO used in this embodiment, the processing device identification information determination unit in the system configuration compares the processing device identification information in the memory 4 with the processing device information in the external storage medium (j), and determines whether they match. The software is protected by reading the instruction data only when the

FIG. 2 is a processing flowchart of the operating system of FIG. This shows the process when loading a program stored in the program storage area 8 in the provided software.

First, the set processing device identification information is read from the processing device identification information setting area 7 in the external recording medium 6 in which the provided software is stored (step 2o1).
. Next, the processing device identification information stored in area 5 of memory 4 is read out (step 202). The two read processing device identification information are compared (step 203).
). As a result of the comparison, if they match, the program in the program storage area 8 is loaded into the main memory (RAM) 11 (step 204), and the program is executed (step 205). If they do not match, error processing is performed (step 206).

In this embodiment, a backup memory is used as the memory 4 that stores the processing device identification information set at the time of system configuration, but a writable nonvolatile memory (for example,
['ROM) etc. may be used. Furthermore, in this embodiment, when defining the system configuration, a random number is generated using random number generation + in, the value is permanently stored in the memory of the processing device as processing device identification information, and the identification information is stored in an external storage medium. By registering in the software provided by , and reading the program (command data) only when the information on both sides matches, not only is there no need for special switch circuits, but the number of man-hours in manufacturing can also be reduced.

Further, the number of digits of the random number generated in this embodiment may be set to any number of digits.

[Effects of the Invention] As described above, according to the present invention, the processing device n
It eliminates the need for hardware such as special switch circuits for identification, and eliminates the need to number each individual processing device during manufacturing, making it possible to protect software, i.e., to prevent software from being diverted to a non-designated processing device. This can be prevented.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a computer system showing an embodiment of the present invention, and FIG. 2 is a processing flowchart of an operating system. 1: Processing device, 2: Battery, 3: 1L number generation means, 4
: Memory (battery backup), 6: External recording medium, 9 System generation program, 10: Operating system, 11: Main memory. Patent applicant: Hitachi, Ltd.
1 Figure L-J

Claims (1)

[Claims] 1. In a computer system that separately provides a processing device and software such as a program that runs on the processing device, the processing device has a battery backup memory or an electronic memory.
^2Equipped with a nonvolatile memory such as a PROM and a random number generation means, the random number generated by the random number generation means is stored in the nonvolatile memory as device identification information of the processing device at the time of system configuration definition, and is provided at the same time. The device identification information is stored on a recording medium in which software command data is stored, and the device identification information stored in the nonvolatile memory is used when reading the provided software command data from the recording medium. and device identification information stored in the recording medium, and reads instruction data only when they match.