JPH0991132A - Error information report system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the appearance of unauthorized users by monitoring the frequency of decoding processing error in a user terminal and giving the information of the frequency thereof to a center. SOLUTION: A contents decoding key generating part 14 generates a decoding key while using a purchase number inputted by a user. A contents decoding part 15 decodes contents while using the decoding key generated by the contents decoding key generating part 14. An error monitoring part collates a check code, which is decoded together with the contents, with specified code information 5b stored in a ROM 5 and discriminates whether both the codes are matched or not. When both the codes are not matched, the error monitoring part discriminates that decoding processing is not normally finished, namely, that the user does not input the proper purchase number, and the number of times of error generation in a log file 6a is incremented for one. Then, an error information reporting part gives the information of the frequency of the error registered in the log file 6a to the center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an error information notifying system in a system for selling software such as computer programs or video works, and particularly digital information software.

[0002]

2. Description of the Related Art When a large-scale storage medium such as a CD-ROM or MO, a large-capacity high-speed communication technology such as B-ISDN, or a technology such as a cable television is developed, a computer using these means is used. Images and sounds as well as programs are distributed as digital information.

That is, a video work which has been conventionally supplied with a video tape is directly stored in a storage medium such as a CD-ROM for sale, or the interactivity (bidirectionality) of the CD-ROM is used. Games are beginning to get on the market.

The same applies to communication lines, and the above-mentioned image copyrighted work is now being delivered to the user's hand via communication. By the way, copying of this kind of digital information is extremely easy, and since there is no deterioration due to copying like analog information, it is possible to copy information of the same quality, and these acts impair the profit of the manufacturer. Very likely. That is, the user can easily copy the contents of the CD-ROM with a little knowledge about the computer if he / she owns a large-capacity rewritable magneto-optical disc or a magnetic disc device.

As described above, in most cases, the manufacturer prohibits the rental of digital information media of this type because a sufficient security check cannot be performed.

However, as an end user, the price of this kind of software at present is expensive, and the software can be used on the hard disk owned by the user, or the software really wants it. I often hesitate to make a purchase until I can confirm the agreement.

Regarding this point, a large number of software whose functions are limited are stored in a CD-ROM and sold at a low price, and the end user releases the function limitation by paying for the desired software. A new software sales system is being implemented, which is to receive the code to execute. In such a sales system, the end user releases the functional restriction of the software by the code received in exchange for the payment and installs it on the own hardware.

[0008]

However, in the above sales method, it is expected that users will try to imitate the code without paying the price.

By the way, such a user who tries to imitate a code repeatedly performs the work of trying the decoding process of the software while gradually correcting the self-made code until the software is normally decoded.
Focusing on this point, the present invention provides an error information notification system capable of suppressing the appearance of an unauthorized user by monitoring the number of error occurrences in the decoding process in the user terminal and notifying the center of the number of error occurrences. The challenge is to provide.

[0010]

The present invention employs the following means in order to solve the above problems. The present invention notifies the decryption information to the user terminal from the center on condition that the encrypted software provided to the user is paid, and the user terminal decrypts the software with the decryption information and sells the installed software. This is an effective technology for the system and employs the following means.

The user terminal has software decoding means,
An error monitoring means, an error information recording means, and a notification means are provided. The software decryption unit decrypts the software according to the decryption information input by the user when the software is installed. Here, the decryption information input by the user may be legitimate decryption information received by payment of the payment or decryption information created by the user who attempts to decrypt the software without paying the payment.

The error monitoring means monitors the processing result of the software decoding means to determine whether or not the decoding processing has been completed normally. The error information recording means records the number of error occurrences in the decoding process of the software. The error information recording means, when the error monitoring means detects the occurrence of an error, if the software entry exists,
The error occurrence count of the entry is incremented by 1. If there is no entry for the software in which the error has occurred, a new entry is set and the initial value "1" for the number of error occurrences is recorded.

The notifying means notifies the center of the number of error occurrences recorded in the error information recording means. As a method of notifying the number of error occurrences, for example, the following two methods can be considered.

(1) The user terminal and the center are communication lines
In case of connection In this case, the center presupposes that the decryption information is transmitted to the user terminal after receiving the purchase request from the user, and the notification means adds the error occurrence count to the purchase request. How to send to the center.

(2) The user terminal and the center are communication lines
If not connected, the user is required to go to the telephone or the center and verbally notify the purchase request to the center when receiving the decryption information from the center. How to request a presentation. In this case, when the user inputs an error information output command to the user terminal, the notification means reads the number of error occurrences recorded in the error information recording means and outputs the error occurrence count from an output device such as a display device or a printer device. Here, if the error occurrence count is output as it is, it may be known to the user and the contents may be changed, so it is preferable to encrypt it by some method. Further, when the software information entry does not exist in the error information recording means, the notification means may output the error occurrence count “0” or may output the dummy information.

Here, it is premised that a check code in which specific code information is encrypted by the decryption information of the software is added to the software, and the error monitoring means is
When the software decoding means decodes the check code together with the software, the decoded check code is compared with predetermined specific information, and if they do not match, it is determined that an error has occurred. May be.

Further, the center has a comparing means for comparing the number of error occurrences notified from the user terminal with a preset specific value, and when the number of error occurrences exceeds the specific value, A warning means for notifying the user terminal of the warning message may be provided.

Further, the center may be provided with an error occurrence number accumulating means for accumulating the error occurrence number of each user. Further, the user terminal may be provided with a display unit for displaying a warning message notified from the center on the screen.

Further, in the above software sales system,
A dedicated error information notification device may be provided.
In this case, the error information notification device records the error occurrence number in the decoding process of the software, and an error monitoring unit that monitors the decoding result after the user terminal decodes the software and detects the error occurrence of the decoding process. Error information recording means, and notifying means for notifying the center of the number of error occurrences recorded in the error information recording means.

The operation of the present invention will be described below. First, in the software sales system to which the present invention is applied, the user decides the desired software and then notifies the center of the purchase request for this software. Here, the center is
The user is informed of the decryption information for decrypting the software by performing a billing process for the software price. Then, the user inputs the decryption information notified from the center into the user terminal. When the decryption information is input, the user terminal decrypts the software using this decryption information, and further installs the decrypted software in the user terminal. According to the present invention, when the user terminal completes the software decryption process, the result of the decryption process is analyzed to determine whether or not the decryption process has ended normally.

When the decryption process ends normally, the user terminal starts installing the decrypted software. If the decryption process does not end normally,
That is, when an error occurs in the decoding process, the error information recording means records the number of error occurrences. here,
If an entry in which the number of error occurrences of the software is registered already exists in the error information recording means,
The error occurrence count of the entry will be incremented by one. If there is no entry in the error information recording means in which the number of error occurrences of the software is registered, a new entry is set and the initial value "1" is registered.

Then, the notifying means notifies the center of the number of error occurrences registered in the error information recording means.
In the case where the center is provided with the comparison means and the warning means, the error occurrence frequency notified from the user terminal or the error information notification device is compared with the specific value, and if the error occurrence frequency exceeds the specific value, , The user will be notified with a message calling attention.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a software sales system to which the error information notification system of the present invention is applied.

The software sales system stores the encrypted contents (software program) on the CD-R.
This is a system in which the decryption key as decryption information can be received by storing it in the OM, providing it to the user, and paying for the content. In the software sales system according to the present embodiment, the plurality of user terminals 1 and the center 2 are connected by a digital communication line, and payment of the price and exchange of the decryption key can be performed by communication.

The software supply medium is a CD-
The storage form is not limited to ROM, and may be stored in another storage medium, or may be in a supply form in which it is downloaded through communication.
Payment of the price is performed by, for example, notifying the subscription number of the cash card or the withdrawal number of the bank account. However, it goes without saying that direct transfer through a financial institution is also possible.

Further, in the present embodiment, it is assumed that a check code is added to each software in the CD-ROM. This check code is obtained by encrypting the specific code information 5b with the decryption key of each software. The specific code information 5b is code information common to all software. This specific code information 5b
Are stored in the ROM 5 of each user terminal 1 (see FIG. 3).
reference). Then, when the software and the check code are decrypted with the valid decryption key, the decrypted check code matches the specific code information 5b in the ROM 5.

FIG. 2 shows the hardware configuration of the user terminal 1 in this embodiment. The user terminal 1 has a CPU 4,
Read-only memory (hereinafter referred to as ROM) 5, EEP
A ROM (Electrically Erasable PROM) 6 is connected by a bus. In addition, a keyboard 7, mouse 8 and CRT are connected to the bus via an input / output device (I / O).
9, a hard disk (HDD) 31, and a drive device 10 are connected. A communication modem 11 is connected to the bus via an interface (IF).
This communication modem 11 is connected to the communication line 3 and is connected to the center 2
Send and receive with.

The specific code information 5 described above is stored in the ROM 5.
In addition to b, a machine ID file 5a for identifying each user terminal 1 and a program to be executed by the CPU 4 are stored (see FIG. 3).

The EEPROM 6 stores a log file 6a as an error information recording means of the present invention (see FIG. 3). The log file 6a is a file in which the number of error occurrences in the decryption process is recorded.

The CPU 4 executes the programs of the ROM 5 to execute communication processing with the center 2, content decryption processing, and content installation processing. Keyboard 7
The mouse 8 is a device for the user to input an arbitrary command or data.

The CRT 9 is a device for displaying image data and a message notified from the center 2 on the screen. The hard disk (HDD) 31 is a storage medium for installing contents.

The drive device 10 is a device for reading the contents stored in the CD-ROM. The communication modem 11 converts the data processed in the user terminal 1 into a data format that can be transmitted on the communication line 3 and transmits the data, and the user terminal 1 can process the data transmitted on the communication line 3. Convert to a different data format.

Here, the functions of the user terminal 1 realized by the CPU 4 executing the program of the ROM 5 will be described with reference to FIG. As shown in the figure, the user terminal 1 includes a machine ID inspection unit 12, an access number generation unit 13, a content decryption key generation unit 14, a content decryption unit 15, an installer 16, a navigator 17, and a purchase request unit 18. There is. Then, the machine ID file 5a and the specific code information 5b are stored in the ROM 5,
A log file 6a is stored in the EEPROM 6.

The machine ID file 5a of the ROM 5 is a file for registering a machine ID for identifying each user terminal 1. The log file 6a of the EEPROM 6 is a file in which the number of error occurrences in the decryption processing of each content is recorded for each content ID. The number of error occurrences of the log file 6a of the EEPROM 6 is reset to "0" after being transmitted to the center 2.

The machine ID inspection section 12 reads the machine ID from the machine ID file 5a in the ROM 5. The access number generator 13 generates an access number. This access number is the machine ID and C that recorded the content.
It is a number calculated by substituting the CD number for specifying the D-ROM into an arithmetic expression previously agreed with the center 2.

The content decryption key generator 14 generates a decryption key as decryption information using the purchase number input by the user. The purchase number is information transmitted from the center 2 in exchange for payment of the price, and specifically, is data obtained by encrypting the decryption key with the machine ID. Therefore, the content decryption key generation unit 14 decrypts the purchase number input by the user with the machine ID to obtain the decryption key.

The content decryption unit 15 realizes the software decryption means of the present invention, and decrypts the content with the decryption key generated by the content decryption key generation unit 14. The installer 16 installs the content decrypted by the content decryption unit 15 in the hard disk (HDD) 31.

The navigator 17 analyzes the decryption result of the content and determines whether or not the decryption processing is normally completed.
Then, if the decryption process is completed normally, the navigator 17 activates the installer 16 to install the content. On the other hand, if the decryption process has not ended normally, the navigator 17 registers the content ID and the error occurrence count in the log file 6a of the EEPROM 6. Here, the navigator 17 will be described with reference to FIG. As shown in the figure, the navigator 17 includes an error monitoring unit 17a, a user information notification unit 17b, and a navigation processing unit 17c.

The error monitoring unit 17a analyzes the decryption result of the content and determines whether or not the decryption processing has been completed normally. Specifically, the error monitoring unit 17a
Is the check code and R decrypted with the content
The specific code information 5b stored in the OM 5 is collated to determine whether the two match. If the two match, the error monitoring unit 17a determines that the decoding process has been completed normally. If the two do not match, the error monitoring unit 17a determines that the decryption processing has not ended normally, that is, that the user did not input a valid purchase number. Furthermore, when the error monitoring unit 17a determines that the decryption processing has not ended normally, the error occurrence count of the log file 6a is set to 1
Increment by one.

The error information notifying section 17b notifies the center 2 of the number of error occurrences registered in the log file 6a. As a notification method, when an access number is sent from the user terminal 1 to the center 2, the number of error occurrences is added to this access number.

The navigation processor 17c realizes the function of a conventional navigator. Returning to FIG. 3, the purchase request unit 18 uses the purchase request command, the content ID of the desired content, and the CD-R storing the content.
When the OM CD number is input, first, the CD number is notified to the access number generation unit 13. Secondly, when the access number generation unit 13 generates an access number, a purchase request,
The content ID, the CD number, and the access number are transmitted to the center 2.

Next, the center 2 in this embodiment will be described. FIG. 5 is a diagram showing a hardware configuration of the center 2. The center 2 has a CPU 1 as shown in FIG.
9, a ROM 20, and a RAM 21 are connected by a bus. In addition, the bus has an input / output device (I / O)
A keyboard 22, a mouse 23, a CRT 24, and a hard disk (HDD) 25 are connected via an interface (IF), and a communication modem 26 is connected via an interface (IF).

The ROM 20 stores the program executed by the CPU 19. Hard disk (HDD) 25
Stores a key file 25a, a purchase history file 25b, and an error information recording file 25c (see FIG. 6). The key file 25a is a file for recording the decryption key of the content, and records the decryption key for each content ID. The purchase history file 25 is a file that records the purchase history of each user, and records the content ID of the purchased content and the purchase number notified to the user in exchange for the price for each access number.
Further, the error information recording file 25c realizes the error information accumulating means of the present invention, and registers the error occurrence frequency of each user. In this error information recording file 25c, the content ID and the number of error occurrences are registered for each access number.

The CPU 19 is a ROM 20 or a RAM
21 to execute a program stored in 21 to perform communication processing with each user terminal 1, accounting processing, purchase number generation processing,
Performs log file update processing, etc.

The keyboard 22 and the mouse 23 are devices for the maintenance person of the center 2 to input arbitrary data and commands. The CRT 24 is a device that displays image data on the screen.

The communication modem 26 is connected to the communication line 3 and transmits / receives information to / from the user terminal 1. Here, the function of the center 2 realized by the CPU 19 executing the program of the ROM 20 will be described with reference to FIG.

As shown in the figure, the center 2 includes a purchase request receiving section 27, a purchase number generating section 28, a comparing section 29, and a warning section 30. The purchase request receiving unit 27 receives a purchase request from the user terminal 1. Specifically, along with the purchase request, access number, content I
When the D, the CD number, and the error occurrence count are received, firstly, the key file 25a of the hard disk (HDD) 25
The decryption key corresponding to the content ID is read from. Second, CD number, decryption key, access number, and content ID
Is notified to the purchase number generation unit 28. Thirdly, the error information recording file 25c is searched using the access number and the content ID as keywords, and the entry having the same access number and the same content ID is discriminated. Then, the error occurrence count received from the user terminal is added to the error occurrence count of the entry in which the access number and the content ID match. On the other hand, access number and content I
If there is no entry that matches D, the purchase request receiving unit 27 sets a new entry and registers the access number, content ID, and error occurrence count.

The purchase number generation unit 28 includes the purchase request reception unit 2
When the access number, the CD number, the decryption key, and the content identification information are received from 7, the access number, the CD, and the
A purchase number is generated using the number and the decryption key. Secondly, the purchase number, access number, and content ID are registered in the purchase history file 25b. Specifically, the purchase number generation unit 28 is composed of an ID detection unit 28a, a CD number inspection unit 28b, and a purchase number generation processing unit 28c, as shown in FIG. The ID detection unit 28a includes the purchase request reception unit 2
When the access number is received from the computer 7, the access number is substituted into the arithmetic expression (reverse arithmetic expression of the arithmetic expression of the access number generating unit) previously agreed with the user terminal 1, and the machine I
Calculate D and CD number. Then, the ID detection unit 28a
Notifies the calculated CD number to the CD number inspection unit 28b and the machine ID to the purchase number generation processing unit 28c. The CD number inspection unit 28b receives the CD number notified from the purchase request receiving unit 27 and the C calculated by the ID detection unit 28a.
The D number is collated to determine whether or not they match.
If they do not match, the CD number inspection unit 28b stops the process and activates the warning unit 200. If the two match, the CD number inspection unit 28b activates the purchase number generation processing unit 28c. The purchase number generation processing unit 28c uses the decryption key received from the purchase request receiving unit 27 as the ID detection unit 2
8a encrypts with the machine ID calculated by 8a, and transmits the encrypted machine ID to the user terminal 1 as a purchase number. Furthermore, the purchase number generation processing unit 28c writes the purchase number, access number, and content ID in the purchase history file 25b.

Now, returning to FIG. 6, when the purchase request receiving unit 27 updates the contents of the error information recording file 25c, the comparing unit 29 reads the number of error occurrences of the updated entry, and the number of error occurrences is read. And a specific value registered in advance are compared. If the number of error occurrences exceeds the specific value, the warning unit 200 is activated.

The warning unit 200 generates a warning message for the user and adds this warning message to the purchase number generated by the purchase number generation unit 28. The operation and effect of this embodiment will be described below.

In the software sales system of this embodiment, when the user terminal 1 sends a purchase request to the center 2,
The center generates a purchase number and sends this purchase number to the user terminal 1. As a result, the user terminal 1 moves to the center 2
The purchase number received from can be used to decrypt the content.

Here, the user terminal 1 at the time of the purchase request
The operation will be described with reference to FIG. When purchasing the desired content, the user inputs the content ID of the desired content, the CD number of the CD-ROM storing the content, and the purchase request command into the keyboard 7 of the user terminal 1.

In the user terminal 1, when the purchase request command, the content ID and the CD number are input from the keyboard 7 (step 801), the CPU 4 executes the following processing according to the program in the ROM 5.

The CPU 4 reads the machine ID from the ROM 5 (step 802) and substitutes the machine ID and the CD number into a predetermined arithmetic expression to calculate the access number (step 803).

The log file 6a of the EEPROM 6 is searched using the content ID as a keyword, and the number of error occurrences stored in the content ID entry is read (step 804).

The number of error occurrences read from the log file 6a is added to the access number together with the content ID (step 805). The content ID, the CD number, and the access number are the communication modem 1
1 to the center 2 (step 806).

The number of error occurrences of the log file 6a is reset to "0" after being transmitted to the center 2. Here, the operation of the center 2 when receiving the purchase request will be described with reference to FIG.

In the center 2, when the purchase request is received from the user terminal 1, the CPU 19 executes the following processing according to the program in the ROM 20. The center 2 receives the purchase request from the user terminal 1, the content ID, the CD number,
When the access number is received (step 901), the content ID and the error occurrence count are separated from the access number (step 902).

Then, the hard disk (HDD) 25 is searched by using the content ID and the access number as keywords, and it is determined whether or not there is an entry having the same content ID and the same access number (step 903). .

Here, the hard disk (HDD) 25
If there is an entry whose content ID matches the access number, the error occurrence count received from the user terminal 1 is added to the entry error occurrence count (step 904).

If there is no entry having the same content ID and access number in the hard disk (HDD) 25, the entry corresponding to the content ID and the access number is set, and the error received from the user terminal 1 is set. The number of occurrences is registered (step 905).

Then, it is determined whether or not the number of error occurrences after the addition processing or the number of newly generated error occurrences exceeds a specific value (step 906). here,
If the number of error occurrences after the addition process or the number of newly registered error occurrences is less than or equal to a specific value, the access number is substituted into a predetermined arithmetic expression to calculate the CD number and the machine ID (step 907).

The calculated CD number is collated with the CD number received from the user terminal 1 (step 908). If the two CD numbers match, the CPU 19 searches the hard disk (HDD) 25 with the content ID received from the user terminal 1 as a keyword, and reads the decryption key of the content desired by the user (step 90).
9).

The decryption key read from the hard disk (HDD) 25 is encrypted with the machine ID calculated in step 907 (step 910). The encrypted decryption key is transferred to the communication modem 26 as a purchase number. Then, the communication modem 26 transmits the purchase number to the user terminal 1 (step 911).

On the other hand, if the number of error occurrences exceeds the specific value in step 906, a warning message is generated (step 912). The generated warning message is added to the purchase number generated in step 910 and transmitted to the user terminal 1 (step 907).
~ 911).

If the CD numbers do not match in step 908, the processing is interrupted and a warning message is generated. Then, the generated warning message is transmitted to the user terminal 1 (step 913).

Upon receiving the purchase number from the center 2, the user terminal 1 displays this purchase number on the screen of the CRT 9.
This allows the user to recognize the purchase number by referring to the output screen of the CRT 9. Also, the user terminal 1
When receiving the purchase number and the warning message from the center 2, displays the purchase number after displaying the warning message on the CRT 9.

When installing the content, the user inputs the purchase number notified by the center 2 using the keyboard 7. In the user terminal 1 to which the purchase number is input, the CPU 4 executes the following processing according to the program in the ROM 5. This will be described with reference to the flowchart of FIG.

The CPU 4 of the user terminal 1 uses the keyboard 7
When the purchase number is entered from (step 1001), R
Read machine ID from OM5 (step 100)
2). Then, the CPU 4 decrypts the purchase number input from the keyboard 7 with the machine ID read from the ROM 5 to generate a decryption key for the content (step 100).
3).

Further, the CPU 4 decrypts the content read from the CD-ROM with the decryption key (step 10).
04). At this time, the check code added to the content is also decoded at the same time.

When the decryption process is completed, a check code is detected from the decrypted content (step 100).
5). Further, the CPU 4 reads the specific code information 5b from the ROM 5 (step 1006) and collates it with the decrypted check code (step 1007).

Here, the decrypted check code and RO
When the specific code information 5b read from M5 matches, it is determined that the decryption processing has ended normally, and installation of the decrypted content is started (step 1
008).

If the decoded check code and the specific code information 5b read from the ROM 5 do not match at step 1007, it is determined that an error has occurred in the decoding process. At this time, the CPU 4 searches the log file 6a of the EEPROM 6 using the content ID as a keyword, and determines whether or not there is an entry corresponding to the content ID (step 1009).

If there is an entry corresponding to the content ID in the log file 6a, the error occurrence count of that entry is incremented by 1 (step 1010).

If there is no entry corresponding to the content ID in the log file 6a, the entry corresponding to the content ID is set and the error occurrence count "1" is registered (step 1011).

A user who tries to use the content without paying the price needs to copy the purchase number. In such a case, such a user repeatedly performs the work of trying the decoding process of the software while correcting the self-made code little by little until the software is normally decoded. Therefore, step 100 of FIG.
Since steps 7, 1009, and 1010 are repeated, there is a high possibility that the number of error occurrences in the log file 6a will exceed the above-described specific value (see step 906). Then, when the user who gives up imitating the purchase number sends a purchase request to the center 2 after the number of error occurrences exceeds a specific value, a warning message is generated in step 912 of FIG. 9 and sent to the user terminal 1. . Then, the user terminal 1 displays the warning message received from the center 2 on the CRT 9. Therefore, it is possible to call attention to the user who is trying to copy the purchase number.

[0077]

According to the present invention, the software whose functions are restricted is stored in a CD-ROM or the like and sold, and the end user pays the price for the software to release the function restriction code. In the software sales method of receiving, it is possible to call attention to an unauthorized user who tries to decrypt the software without paying the price.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a software sales system according to an embodiment.

FIG. 2 is a hardware configuration diagram of a user terminal

FIG. 3 is a functional block diagram of a user terminal according to the embodiment.

FIG. 4 is a functional block diagram of a navigator.

[Figure 5] Hardware configuration of the center

FIG. 6 is a functional block diagram of a center according to the present embodiment.

FIG. 7 is a functional configuration diagram of a purchase number generation unit.

FIG. 8 is a flowchart showing an operation process of a user terminal when making a purchase request.

FIG. 9 is a flowchart showing an operation process of the center when receiving a purchase request.

FIG. 10 is a flowchart showing an operation process of the user terminal 1 at the time of installation.

[Explanation of symbols]

 1 ... User terminal 2 ... Center 3 ... Communication line 4 ... CPU 5 ... Read-only memory (ROM) 5a ... Machine ID file 5b ... Specific code information 6 ... EEPROM 7 ... Keyboard 8 ... Mouse 9 ... CRT 10 ... Drive device 11 ... Communication modem 12 ... Machine ID checker 13 ... Access number generator 14 ... Content decryption key generator 15 ... Content decryptor 16 ... Installer 17 ... Navigator 17a .. error monitor 17b .. user information notifier 17c .. navigation processing part 18 .. purchase request part 19 .. CPU 20. read only memory (ROM) 21. random access memory (RAM) 22.・ Keyboard 23 ・ ・ Mouse 24 ・ ・ CRT 25 ・ ・ Hard disk (HDD) 25a ・Key file 25b..Purchase history file 25c..Error information recording file 26..Communication modem 27..Purchase request reception unit 28..Purchase number generation unit 28a..ID detection unit 28b..CD number inspection unit 28c .. Purchase number generation processing unit 29 ... Comparison unit 200 ... Warning unit

Claims (9)

[Claims] 1. A software sales system in which a center notifies the user of decryption information on condition that payment of the encrypted software provided to the user is performed, and the user terminal decrypts the software with the decryption information. An error information notification system, wherein the user terminal is a software decoding unit that decodes the software based on decoding information input by a user, and an error monitor that monitors a processing result of the software decoding unit and detects an error occurrence in the decoding process. An error information notifying system comprising: a unit, an error information recording unit that records the number of error occurrences, and a notification unit that notifies the center of the number of error occurrences recorded in the error information recording unit. 2. The notifying means, together with the purchase request to be transmitted from the user terminal to the center when the user purchases new software, indicates the number of error occurrences recorded in the error information recording means. The error information notification system according to claim 1, which transmits. 3. The purchase request is premised on including information for identifying the user terminal, and the notifying unit is inseparable from the user by the number of times the error has occurred and the information for identifying the user terminal. The error information notification system according to claim 2, wherein the error information notification systems are combined in a form. 4. A check code obtained by encrypting predetermined code information with decryption information of each software is added to each software, and the error monitoring means is configured such that the software decryption means decrypts the check code. The error information notification system according to claim 1, wherein the decoded check code is compared with predetermined specific information at the time, and if both do not match, it is determined that an error has occurred. 5. A software sales method in which a center notifies the user of decryption information on the condition that the encrypted software provided to the user is paid, and the user terminal decrypts the software with the decryption information. An error information notification system, wherein the user terminal is a software decoding unit that decodes the software based on decoding information input by a user, and an error monitor that monitors a processing result of the software decoding unit and detects an error occurrence in the decoding process. Means, error information recording means for recording the number of error occurrences, and notifying means for notifying the center of the number of error occurrences recorded in the error information recording means, the center from the user terminal Compare the notified number of error occurrences with a preset specific value And compare means, when the error count exceeds the specified value,
An error information notification system, comprising: a warning unit that notifies the user terminal of a warning message. 6. A check code obtained by encrypting specific code information with decryption information of each software is added to each software, and the error monitoring means is provided when the software decrypting means decrypts the check code. The error information notification system according to claim 5, wherein the decoded check code is compared with predetermined specific information, and if the two do not match, it is determined that an error has occurred. 7. The error information notification system according to claim 5, wherein the center further comprises error occurrence count accumulating means for accumulating the error occurrence count of each user. 8. The error information notification system according to claim 5, wherein the user terminal further includes a display unit for displaying a warning message notified from the center on a screen. 9. A software sales system in which a center notifies the user of decryption information on the condition that payment of the encrypted software provided to the user is performed, and the user terminal decrypts the software with the decryption information. An error information notification device, after the user terminal decodes the software, monitors the decoding result, an error monitoring unit for detecting an error occurrence in the decoding process, and an error recording the number of error occurrences in the decoding process of the software An error information notification device comprising: an information recording unit; and a notification unit that notifies the center of the number of error occurrences recorded in the error information recording unit.