JP4681105B2 - Electronic device embedded software protection method and electronic device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic device embedded software protection method and an electronic device that prevent unauthorized software from being embedded in electronic devices having different functions by incorporating different types of software.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, electronic devices that operate according to applications have been provided by using embedded application software.
[0003]
The electronic device is an image processing device such as an image checker that captures and processes an image, for example, and includes a memory that stores application software that operates the electronic device according to a use, and a CPU that reads and executes the application software from the memory. Operation of keyboard, mouse, etc. instructing the CPU to perform a desired operation by operating the device main body provided, a camera that controls images from the CPU, and a monitor that displays images captured by the camera And an input device.
[0004]
By incorporating, for example, application software for IC appearance inspection into such an electronic device, the electronic device becomes an appearance inspection device for inspecting the appearance of ICs such as subtle scratches, chips, and foreign matters, or a printed wiring board. By incorporating measurement application software for positioning electronic components to be mounted on top, this electronic device detects the absolute position of the reference mark for cutting on the printed wiring board, and the position where the electronic component is mounted It also serves as a positioning device that outputs data.
[0005]
[Problems to be solved by the invention]
However, the above-mentioned application software manufactured by the manufacturer of the electronic device may be illegal for the electronic device by the user using a commercially available development device even if the source code of the application software is not disclosed by the manufacturer. There was a problem of being incorporated into.
[0006]
For example, there is a price difference between the application software for IC appearance inspection and the application software for measurement as described above, and the appearance inspection apparatus in which the application software for IC appearance inspection is incorporated is incorporated in the application software for measurement. If the price is set more expensive than the registered positioning device, users including middlemen purchase both devices one by one, and after that, purchase only the low-cost positioning device and use it as a visual inspection device. By improperly copying the embedded IC appearance inspection application software using a development device and incorporating this illegally copied application software into the positioning device, it is possible to obtain an inexpensive appearance inspection device as a result. There was sometimes. As a result, the manufacturer cannot sell the appearance inspection apparatus at a regular price, and suffers a disadvantage.
[0007]
The present invention aims to solve the above-described problems, and provides a protection method for electronic device embedded software and an electronic device that prevent unauthorized incorporation of software into the electronic device.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, the invention of claim 1Operate electronic devices according to usageA software protection method for preventing unauthorized incorporation of software into an electronic device having a different function by incorporating application software, wherein the software and the electronic device into which the software is properly incorporated have identification means that match each other. The identification means provided in each electronic device is compared with the identification means of the software installed in the electronic device, and the electronic device operates according to the installed software only when each identification means matches. LetThe software has identification means consisting of data, and the electronic device has a system program for controlling the hardware of the electronic device and a contact opening / closing device having one or more contacts. The identification means consisting of data is set according to the open / close state of the contact, the system program checks the identification means on the electronic device side and the identification means on the application software side, and the contact open / close device is composed of a sealed chip. ingWhen unauthorized software is incorporated into an electronic device, the software identification means and the electronic device identification means do not match, and the electronic device is not operated according to the incorporated software, It is possible to prevent illegal incorporation of software into an electronic device. For example, an inexpensive electronic device and an expensive electronic device each having two types of software that are different from each other and have a price difference depending on the application. If a user copies software from an expensive electronic device and improperly rearranges this software into an inexpensive electronic device, the user can obtain an expensive electronic device at a low price. Everything you can prevent.Even when the entire contents of the system program are copied by the user, the identification means of the electronic device is not copied because it is set according to the open / close state of the contact, and the contact switching device is further sealed. By using a simple chip, illegal installation of software can be surely prevented.
[0009]
According to a second aspect of the present invention, in the first aspect of the invention, when at least a part of one of the matching means provided in each of the software and the electronic device in which the software is properly incorporated is changed and collated One of the identification means provided in each of the software and the electronic device in which the software is properly incorporated is characterized in that the one identification means that has been changed is restored after being restored by a predetermined change process. Even if the user has grasped, either one of the identification means is changed and restored by a predetermined change process when collating, so that unless the user knows the contents of the change process, Making it difficult to identify the means of identification and further preventing unauthorized incorporation of software into electronic equipment. That.
[0012]
  Claim 3The invention ofOperate electronic devices according to usageAn electronic device having different functions by incorporating application software, which is provided in processing means that executes the embedded software and performs processing in accordance with the application according to the software, and that is properly installed in the software TheDataA device-side identification unit that matches the identification unit, a device-side identification unit and a built-in software identification unit that collate, and a matching unit that permits execution by the built-in software processing unit only when they match.A contact switching device comprising one or a plurality of contacts, in which device-side identification means consisting of data is set according to the contact open / close state;WithThe collating means is a system program for controlling the hardware of the electronic device, and the contact switching device is composed of a sealed chip.When unauthorized software is incorporated into an electronic device, the software identification unit and the device-side identification unit are collated by the collation unit. As a result, the execution of software by the processing unit is not permitted. Therefore, it is possible to prevent illegal incorporation of software into an electronic device, for example, an inexpensive electronic device in which two types of software differing in price from each other depending on the application are separately incorporated and expensive. There is an electronic device, and the user copied the software from an expensive electronic device and illegally rearranged this software into an inexpensive electronic device. As a result, the user obtained an expensive electronic device at a low price. You can do everything to prevent it.Even when the entire contents of the system program are copied by the user, the identification means of the electronic device is not copied because it is set according to the open / close state of the contact, and the contact switching device is further sealed. By using a simple chip, illegal installation of software can be surely prevented.
[0013]
  Claim 4The invention ofClaim 3In the present invention, at least one of the software identification means and the device-side identification means that match the identification means that are properly incorporated is changed at least in part, and the collation means sets the changed identification means to a predetermined one. Even if one of the software identification means and device-side identification means that are properly installed is recognized by the user, either identification means is changed. When the collation means collates, it is restored by a predetermined change process, so that it is difficult for the user to find out the other identification means unless the user knows the contents of the collation means change process. In addition, unauthorized incorporation of software into electronic equipment can be further prevented.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
  (Reference example 1)
  This configuration exampleAs shown in FIG. 1, the electronic device 10 includes a device main body 10a in which application software 20 for operating the electronic device 10 is installed according to the application, and a plurality of peripheral devices controlled by the device main body 10a. 10b...
[0017]
The device main body 10a executes the embedded application software 20 and performs processing according to the application in accordance with the application software 20, and the CPU 13 as the processing means, and the identification means 1 provided in the properly incorporated application software 20 The matching device side identification means 2 and the hardware of the electronic device are controlled, and the device side identification means 2 and the identification means 1 of the incorporated application software 20 are collated, and the application software incorporated only when they match. 20 includes a system program 12 that is a verification unit that permits execution by the CPU 13 and a peripheral device interface unit 14 that interfaces with the peripheral devices 10b. Further, the above-described device side identification means 2 is provided in the system program 12.
[0018]
Each of the peripheral device interface units 14... Is configured according to the peripheral device 10b connected to the device main body 10a. For example, if each of the peripheral devices 10b... Is a monitor, an operation input device such as a keyboard or a mouse, and an external storage device such as a floppy disk drive or a CD-ROM drive as in the conventional example, the peripheral device interface unit 14. Each of them is a monitor output circuit unit that outputs an image signal, an input circuit unit that inputs a signal from an operation input device, and a drive circuit unit that transmits and receives data according to an external storage device. In addition, for the peripheral device 10b connected via a serial port such as RS232C, the peripheral device interface unit 14 becomes a serial circuit unit that transmits and receives signals according to RS232C, and is connected via Ethernet. For 10b, the peripheral device interface unit 14 is an Ethernet interface circuit unit.
[0019]
The application software 20 and the system program 12 are stored in the backup area 11a of the memory 11 provided in the apparatus main body 10a, transferred to the execution area 11b of the memory 11 by the control from the CPU 13 when the electronic apparatus 10 is started, and executed respectively. Is done. For example, a hard disk or a ROM is used as the backup area 11a, and a DRAM or the like is used as the execution area 11b.
[0020]
The collation between the device-side identification means 2 of the system program 12 and the identification means 1 of the application software 20 as described above is represented by a conceptual diagram as shown in FIGS. 2 (a) and 2 (b), for example.
[0021]
The system program 12A provided in the electronic device 10 shown in FIG. 2A is provided with device-side identification means 2A that protrudes substantially in a triangular shape, and the application software 20A that is legally incorporated in the electronic device 10 includes An identification means 1A, which is recessed in a substantially triangular shape so as to be fitted with the device side identification means 2A of the system program 12A, is provided.
[0022]
The system program 12A collates the device-side identification means 2A with the identification means 1A of the application software 20A, and determines that the application software 20A is properly incorporated as a match if fitted. Then, the execution of the application software 20A by the CPU 13 is permitted.
[0023]
On the other hand, the system program 12B provided in the electronic device 10 shown in FIG. 2B and the application software 20B that is legally incorporated are also substantially rectangular in the system program 12B, like the system program 12A and the application software 20A. The application software 20B is provided with an identification means 1B recessed in a substantially rectangular shape that fits with the apparatus side identification means 2B of the system program 12B.
[0024]
For example, when the application software 20B is incorporated in the electronic device 10 shown in FIG. 2A and the device-side identification means 2A and the identification means 1B of the application software 20B are collated by the system program 12A, the identification means 2A for each. 1B, the system program 12A determines that the identification means 2A and 1B do not match and that the application software 20B is improperly incorporated, and the CPU 13 uses the application software 20B. Execution is not permitted.
[0025]
Specifically, the device-side identification unit 2 of the system program 12 and the identification unit 1 of the application software 20 that is legitimately incorporated in the electronic device 10 provided with the system program 12 are respectively the same identification, for example, “123456”. Consists of data.
[0026]
Here, the operation of the electronic device 10 until the application software 20 is executed after the power is turned on to the electronic device 10 in which the application software 20 as described above is properly incorporated is simply described based on the flowchart of FIG. Explained.
[0027]
When the electronic device 10 is turned on (S1), first, the CPU 13 moves the system program 12 from the backup area 11a to the execution area 11b and starts it (S2), and the system program 12 starts the peripheral device interface unit 14. At the same time as initialization (S3), the device side identification data 2 ("123456") provided in itself is compared with the identification data 1 ("123456") of the application software 20 (S4). If the system program 12 determines that the device-side identification data 2 and the identification data 1 match and that the application software 20 is legitimately incorporated, the system program 12 permits the execution of the application software 20 by the CPU 13, and the application software 20 Is transferred from the backup area 11a to the execution area 11b (S5), and the application software 20 is executed (S6).
[0028]
However, if the identification data 2 of the incorporated application software 20 is “456123”, for example, the system program 12 determines the device-side identification data 2 (“123456”) and the identification data of the application software 20 in step S4. 1 (“456123”) and determine that the application software 20 is improperly incorporated without matching each other. As a result, the system program 12 does not permit the execution of the application software 20 by the CPU 13, but keeps the application software 20 in the backup area 11a (S7). For example, the embedded application software 20 is improperly incorporated. A warning message is sent from the CPU 13 to inform the user of the presence (S8).
[0029]
  As mentioned aboveThis configuration exampleThen, as in the conventional example, the application software 20 and the electronic device in which the application software 20 is incorporated can be outsourced to the user who owns the development apparatus while the version upgrade of the application software 20 that is properly incorporated can be outsourced. 10 includes identification data 1 and 2 that match each other, and is included only when the device side identification data 2 provided in the electronic device 10 and the identification data 1 of the application software 20 are matched and matched. Since the electronic device 10 is operated in accordance with the application software 20, when the unauthorized application software 20 is incorporated in the electronic device 10, the identification data 1 and the device-side identification data 2 do not match, and the application Seo Order not to operate the electronic device 10 in accordance with the Towea 20, it is possible to prevent unauthorized integration into the electronic device 10 of the application software 20.
[0030]
As a result, for example, there are an inexpensive electronic device 10 and an expensive electronic device 10 each incorporating two types of application software 20 that are different from each other and have a price difference depending on the use. Each time the application software 20 is copied from the device 10 and this application software 20 is illegally reconfigured to an inexpensive electronic device 10, the user is prevented from obtaining the expensive electronic device 10 at a low price as a result. Can do.
[0031]
  AlsoThis configuration exampleThen, since the device-side identification data 2 is provided in the system program 12, the hardware of the electronic device 10 is not individually changed according to the type of the application software 20 that is legally incorporated, and the electronic device 10 The hardware manufacturing process can be unified.
[0032]
  (Reference example 2)
  By the way, the system program 12 is not disclosed and is stored in a ROM or the like used for the backup area 11a by the manufacturer at the time of manufacture, and is provided in the electronic device 10 so that it cannot be changed by the user.
[0033]
However, the application software 20 may be changed by the user, and the user may change the contents of the application software 20 using a commercially available development device to upgrade the application software 20.
[0034]
At this time, even if the source code of the application software 20 is not disclosed from the manufacturer, the user views the identification data 1 from the execution file of the application software 20 stored in the backup area 11a using the development device. Can do.
[0035]
Furthermore, if the development apparatus is used, it is possible to compare and search the device side identification data 2 of the system program 12 stored in the backup area 11a from the identification data 1 of the application software 20, and as a result, the identification data 1 and In some cases, the device-side identification data 2 is identified, and unauthorized application software 20 is incorporated into the electronic device 10.
[0036]
  ThereforeThis configuration exampleThen, the identification data 1 of the application software 20 to be properly incorporated has been converted in advance, and the system program 12 restores the converted identification data 1 of the application software 20 to the original by a predetermined conversion process and collates it.
[0037]
For example, when the device-side identification data 2 and the identification data 1 of the application software 20 that is properly incorporated are each composed of “123456” data, the application software 20 is converted to “456123” by shifting it by three digits in advance. The identification data 1 including the data “is provided.
[0038]
When the electronic device 10 is turned on and the system program 12 is moved to the execution area 11b and started, the system program 12 is stored in the application area stored in the backup area 11a as shown in the flowchart of FIG. The converted identification data 1 (“456123”) of the software 20 is read (S1), and “456123” is shifted by three digits by a predetermined conversion process and returned to “123456” which is the original identification data 1 (S2). Thereafter, the system program 12 collates its own device-side identification data 2 (“123456”) with the identification data 1 (“123456”) returned to the original application software 20 (S3), and they match each other. If it is determined that the application software 20 is properly incorporated, the application software 20 is moved to the execution area 11b as described above, and the execution of the application software 20 by the CPU 13 is permitted (S4).
[0039]
However, if the identification data 1 preliminarily provided in the application software 20 is “345612”, the system program 12 shifts “345612” by three digits in the same conversion process as described above in step S2 to restore the original data. The identification data 1 is returned to “612345”, and the original identification data 1 (“612345”) of the application software 20 is collated with the device-side identification data 2 (“123456”) (S3).
[0040]
At this time, the system program 12 determines that the application software 20 is improperly incorporated because the comparison results do not match, so that the application software 20 is kept in the backup area 11a and the CPU 13 executes the application software 20 It is prohibited (S5).
[0041]
  As mentioned aboveThis configuration exampleThen, even if the user knows the identification data 1 of the application software 20 stored in the backup area 11a of the electronic device 10 using the development device, the identification data 1 of the application software 20 is converted in advance, and the system As a result of the program 12 reverting and collating with a predetermined conversion process, unless the contents of the conversion process are known to the user, the device side identification data 2 in the system program 12 is searched by comparison with the identification data 1. Can be made difficult, and unauthorized incorporation of the application software 20 into the electronic device 10 can be further prevented.
[0042]
For example, the identification data 1A of the application software 20A that is legitimately incorporated in one electronic device 10 provided with the system program 12A is “123456” and is legitimately incorporated in the other electronic device 10 provided with the system program 12B. When the identification data 1B of the application software 20B is “987654”, even if the user can recognize these identification data 1A and 1B, the identification data 1A and 1B can be recognized by the system programs 12A and 12B. Therefore, the application software 20B, 20A of the other electronic device 10 cannot be incorporated into one electronic device 10 provided with the system programs 12A, 12B.
[0043]
  In addition,This configuration exampleThen, when the ROM used as the backup area 11a is taken out and all the contents stored in the ROM, that is, the contents of the conversion processing of the system program 12 and the device side identification data 2 are copied, the unauthorized application software 20 Since it cannot be prevented from being incorporated into the electronic device 10, the ROM is provided so as not to be taken out from the device main body 10 a, and the application software 20 is upgraded to the device main body 10 a by connecting a commercially available development device to the ROM. Is provided to prevent copying of all the contents stored in the ROM. Furthermore, when the ROM is taken out, an illegal act is performed by the user when the ROM is taken out by sticking a seal seal on the device main body 10a so as to leave the ROM as evidence as being taken off or torn. I can clarify what happened.
[0044]
  by the way,This configuration exampleThen, the identification data 1 of the application software 20 has been converted in advance, but the device-side identification data 2 of the system program 12 is changed in advance, and the device-side identification data 2 is returned to the system program 12 to restore the application software. You may make it collate with 20 identification data 1. FIG.
[0045]
  (Embodiment 1)
  The basic configuration in this embodiment isReference example 1Or, in order to be common with 2, common parts are denoted by the same reference numerals, description thereof is omitted, and only the parts that are characteristic of this embodiment will be described in detail.
[0046]
  As shown in FIGS. 5 and 6, the electronic device 10 of the present embodiment includes a contact switching device 15 having a plurality of contacts 15 a... Such as jumper pins and dip switches. ,Reference example 1Alternatively, as in 2, the system program 12 is not provided, and is set according to the open / closed state of the contacts 15a of the contact switching device 15.
[0047]
Such a contact switching device 15 is connected to the CPU 13 via the bus 16, and the CPU 13 accesses the contact switching device 15 by addressing and is set according to the open / closed state of the plurality of contacts 15a. The device side identification data 2 composed of the data string “0” and “1” is recognized.
[0048]
Further, the system program 12 of the present embodiment converts the device identification data 2 including the data strings “0” and “1” set in the contact switching device 15 and recognized by the CPU 13 into decimal data and reads it.
[0049]
  Furthermore, in this embodiment,Reference example 2On the contrary, the device identification data 2 that matches the identification data 1 of the application software 20 that is properly incorporated is converted in advance and set in the contact switching device 15, and the system program 12 executes the converted device identification. Data 2 is restored and collated by a predetermined conversion process.
[0050]
  The operation of the system program 12 is shown in the flowchart of FIG. 4, as shown in the flowchart of FIG.Reference example 2When the identification data 1 of the application software 20 in step S1 is read, the device-side identification data 2 of the contact switch 15 is read as decimal data, and the operation proceeds to step S2. The only difference is that the conversion process performed on the device-side identification data 2 is performed.
[0051]
For example, the system software 12 is “456123” of the identification data 1 of the application software 20 that is properly incorporated, and “123456” of the device side identification data 2 that is converted and set in advance by three digits of the contact switch 15. Are read (S1). Then, the system program 12 shifts “123456” of the device-side identification data 2 by 3 digits and returns it to “456123” of the original device-side identification data 2 (S2). “456123” and “456123” of the device-side identification data 2 returned to the original are collated (S3).
[0052]
As described above, in this embodiment, even when the user knows the identification data 1 of the application software 20 using a commercially available development device, the device-side identification data 2 converted in advance is set in the contact switching device 15. The system program 12 makes it difficult to identify the device-side identification data 2 unless the user knows the contents of the conversion process by reverting to the original by a predetermined conversion process. Unauthorized incorporation into the 20 electronic devices 10 can be further prevented.
[0053]
Further, in this embodiment, even if the ROM used as the backup area 11a is taken out and all the stored contents are copied, the device side identification data 2 is set by the contact switching device 15, so that the device side Without the identification data 2 being known, unauthorized incorporation of the application software 20 into the electronic device can be further prevented.
[0054]
Furthermore, the contact switching device 15 may be configured by a sealed chip. In this case, when the electronic device 10 is manufactured, each contact switching device 15 corresponding to the type of application software 20 that is legally incorporated is provided. Although it must be manufactured and provided in the device main body 10a, unauthorized incorporation of the application software 20 can be reliably prevented.
[0055]
【The invention's effect】
  The invention of claim 1Operate electronic devices according to usageA software protection method for preventing unauthorized incorporation of software into an electronic device having a different function by incorporating application software, wherein the software and the electronic device into which the software is properly incorporated have identification means that match each other. The identification means provided in each electronic device is compared with the identification means of the software installed in the electronic device, and the electronic device operates according to the installed software only when each identification means matches. LetThe software has identification means consisting of data, and the electronic device has a system program for controlling the hardware of the electronic device and a contact opening / closing device having one or more contacts. The identification means consisting of data is set according to the open / close state of the contact, the system program checks the identification means on the electronic device side and the identification means on the application software side, and the contact open / close device is composed of a sealed chip. ingTherefore, when unauthorized software is incorporated into an electronic device, the software identification means and the electronic device identification means do not match, and the electronic device is not operated in accordance with the incorporated software. Unauthorized incorporation into equipment can be prevented, for example, there are inexpensive electronic equipment and expensive electronic equipment in which two types of software differing in price from each other depending on the application are incorporated separately. Every time a user copies software from an expensive electronic device and illegally rearranges this software into an inexpensive electronic device, the user is prevented from getting an expensive electronic device at a low price as a result. There is an effect that can be done.Even when the entire contents of the system program are copied by the user, the identification means of the electronic device is not copied because it is set according to the open / close state of the contact, and the contact switching device is further sealed. By using a simple chip, illegal installation of software can be surely prevented.
[0056]
According to the invention of claim 2, at least a part of one of the matching means provided in each of the software and the electronic device in which the software is properly incorporated is changed at least partially, and the one of the changed identifications is changed when collating Even if one of the identification means provided in each of the software and the electronic device in which the software is properly incorporated is grasped by the user, since the verification is performed after the means is restored by a predetermined change process, When one of the identification means is changed and restored by a predetermined change process when collating, it is difficult to identify the other identification means unless the user knows the contents of the change process. Thus, it is possible to further prevent unauthorized incorporation of software into electronic devices.
[0059]
  Claim 3The invention ofOperate electronic devices according to usageAn electronic device having different functions by incorporating application software, which is provided in processing means that executes the embedded software and performs processing in accordance with the application according to the software, and that is properly installed in the software TheDataA device-side identification unit that matches the identification unit, a device-side identification unit and a built-in software identification unit that collate, and a matching unit that permits execution by the built-in software processing unit only when they match.A contact switching device comprising one or a plurality of contacts, in which device-side identification means consisting of data is set according to the contact open / close state;WithThe collating means is a system program for controlling the hardware of the electronic device, and the contact switching device is composed of a sealed chip.Therefore, when unauthorized software is incorporated into an electronic device, the software identification means and the device-side identification means are collated by the collation means, and as a result of not matching each other, the execution of the software by the processing means is not permitted, It is possible to prevent illegal incorporation of software into an electronic device. For example, an inexpensive electronic device and an expensive electronic device each having two types of software that are different from each other and have a price difference depending on the application. If a user copies software from an expensive electronic device and improperly rearranges this software into an inexpensive electronic device, the user can obtain an expensive electronic device at a low price. There is an effect that you can do every prevention.Even when the entire contents of the system program are copied by the user, the identification means of the electronic device is not copied because it is set according to the open / close state of the contact, and the contact switching device is further sealed. By using a simple chip, illegal installation of software can be surely prevented.
[0062]
  Claim 4The invention ofOne of the software identification means properly incorporated and the device-side identification means that matches the identification means is at least partially changed, and the collation means restores the changed one identification means by a predetermined change process. Therefore, even if one of the software identification means and the device-side identification means properly incorporated is recognized by the user, one of the identification means is changed and the verification means is verified. When it is done, it is made difficult to find out the other identification means unless the user knows the contents of the change process of the collating means by returning to the original by a predetermined changing process.There is an effect that unauthorized incorporation can be further prevented.
[Brief description of the drawings]
[Figure 1]Reference example 1It is a schematic block diagram of the electronic device which shows this.
FIGS. 2A and 2B are conceptual diagrams for explanation.
FIG. 3 is a flowchart for explaining the operation.
[Fig. 4]Reference example 2FIG. 10 is a flowchart for explaining the operation of the system program.
[Figure 5]Embodiment 1It is a schematic block diagram of the electronic device which shows this.
FIG. 6 is a schematic configuration diagram showing the CPU and the contact switching device.
FIG. 7 is a flowchart for explaining the operation of the system program.
[Explanation of symbols]
  1 Identification data
  2 Device side identification data
  10 Electronic equipment
  10a Device body
  10b Peripheral equipment
  11 memory
  11a Backup area
  11b execution area
  12 System program
  13 CPU
  14 Peripheral device interface
  20 Application software

Claims (4)

A software protection method for preventing unauthorized incorporation of software into an electronic device having a different function by incorporating application software that operates the electronic device according to the application, and the electronic device in which the software is properly incorporated Each device has identification means that match each other. The identification means provided in the electronic device is compared with the software identification means installed in the electronic device. operating the electronic device in accordance with the software, the software has an identification means composed of the data, the electronic equipment, with the system program is incorporated to control the hardware of the electronic device, one to a plurality of contacts A contact opening / closing device comprising: Is set identification means consisting of data in accordance with the closed state, that the system program checks the identification means identifying means and application software side of the electronic device side, contact switching device that consists of a sealed tip An electronic device embedded software protection method characterized by the above.   At least a part of one of the matching means provided in each of the software and the electronic device into which the software is properly incorporated is changed at least partially, and when the collation is performed, the changed one identification means is subjected to a predetermined change process. 2. The method for protecting software embedded in electronic equipment according to claim 1, wherein collation is performed after the restoration. A processing unit that has different functions by incorporating application software that operates the electronic device according to the application, executes the embedded software, and performs processing according to the application according to the software; Software that is installed only when the device-side identification means that matches the identification means that consists of data provided in legitimately installed software matches the device-side identification means and the identification means of the installed software. the collating means for permitting the execution by the processing means, 1 comprises a plurality of contacts, and a contact switching device device-side identification means is set consisting of data in accordance with the opening and closing state of the contact, collation means is a system program for controlling the hardware of the electronic device, the contact switching device is a sealed tip Electronic apparatus, characterized by being made.   One of the software identification means properly incorporated and the device-side identification means that matches the identification means is at least partially changed, and the collation means restores the changed one identification means by a predetermined change process. 4. The electronic device according to claim 3, wherein the collation is performed by returning to step (b).

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