JP4642715B2 - Computer device data erasure completion certificate issuance system, computer device data erasure completion certificate issuance method, program, and magnetic data erasure management server - Google Patents

Description

  The present invention relates to a computer device data erasure completion certificate issuing system for erasing magnetic data stored in a hard disk or the like and issuing a data erasure completion certificate for proving that the erasure is completed, and computer device data erasure completion. Certificate issuing method, program, and magnetic data erasure management server, in particular, a computer equipment data erasure completion certificate issuance system that prevents fraud such as issuing only a data erasure completion certificate without erasing magnetic data The present invention relates to a computer device data erasure completion certificate issuing method, a program, and a magnetic data erasure management server.

  Conventionally, as a method of erasing magnetic data stored in a hard disk or the like built in a computer device (hereinafter referred to as a personal computer, for example), the hard disk is removed from the personal computer and physically destroyed by hammering or drilling. There are a method of erasing magnetic data and a method of erasing magnetic data by applying destruction software to each PC.

  Further, as a method of erasing recorded magnetic data while the hard disk device is not removed from the personal computer and is still built in the personal computer, for example, as described in JP-A-2005-78713, a personal computer is used. There is a method of erasing magnetic data by applying a magnetic field so as to surround the main body.

  As a method for issuing a data erasure completion certificate, for example, there is a data erasure completion certificate issuance method as described in Japanese Patent Application Laid-Open No. 2003-6049.

  In this data erasure completion certificate issuing method, an erasure execution program is executed on a personal computer that is a management target terminal having a built-in hard disk to be erased to erase magnetic data in the hard disk.

  After erasing magnetic data with this erasure execution program, the personal computer to be erased issues magnetic data erasure certification information including information such as erasure execution date and time to the management terminal managing the data erasure operation via the network Send with.

  The management terminal receives this erasure certification information and confirms the contents, thereby confirming whether data has been normally erased.

JP 2005-78713 A JP 2003-6049 A

  However, the computer equipment data erasure completion certificate issuance method as described in JP-A-2003-6049 has the following problems.

In other words, in this data erasure completion certificate issuance method, erasure certification information that proves whether or not erasure is completed is mutually exchanged between the management terminal (computer) storing the data to be erased and the management terminal. It is managed whether or not data erasure has been normally performed by sending and receiving data, but in the case of a PC that should be discarded due to failure of the managed terminal, it cannot communicate with the management terminal, and the dismantling company However, it is impossible to confirm that the magnetic data has been securely erased.
Under such circumstances, fraudulent acts such as issuing only a certificate without erasing magnetic data cannot be prevented with regard to issuing a magnetic data erasure completion certificate.

  Accordingly, an object of the present invention is to erase magnetic data stored in a hard disk or the like and actually erase magnetic data with respect to a process of issuing a data erasure completion certificate to prove to the user that the erasure has been completed. A magnetic data erasure completion certificate issuance system and a magnetic data erasure completion certificate issuance method that prevent unauthorized acts such as issuing only a certificate without issue and securely erase magnetic data and issue certificates It is to provide.

  A first computer equipment data erasure completion certificate issuing system according to the present invention includes a magnetic switch IC tag having a magnetic switch connected when a magnetic field is applied and a user information memory in which user information is stored in advance, and a storage device Magnetic field processing means for simultaneously applying the same magnetic field, user information reading means for reading the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by applying the magnetic field, Magnetic data erasure completion certificate issuing means for outputting a certificate indicating that data erasure in the storage device is completed based on user information.

  A second computer equipment data erasure completion certificate issuance system according to the present invention is the first computer equipment data erasure completion certificate issuance system, wherein the user information includes at least a mail address, and the magnetic data erasure completion certificate issuance The means transmits the certificate to the mail address.

  A third computer equipment data erasure completion certificate issuance system according to the present invention is the first or second computer equipment data erasure completion certificate issuance system, wherein the IC tag with a magnetic switch transmits a transmitter. The user information reading means acquires the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by application of the magnetic field via the transmitter. To do.

  According to a fourth computer equipment data erasure completion certificate issuing system of the present invention, in any one of the first to third computer equipment data erasure completion certificate issuing systems, the magnetic field is a DC magnetic field or a damped alternating magnetic field. Features.

  A fifth computer equipment data erasure completion certificate issuance system according to the present invention is the computer equipment data erasure completion certificate issuance system according to any one of the first to fourth aspects, wherein the IC tag with a magnetic switch is built in the storage device. It is characterized by being.

  The sixth computer equipment data erasure completion certificate issuing system according to the present invention is the computer equipment data erasure completion certificate issuing system according to any one of the first to fourth computer equipment, wherein the IC tag with a magnetic switch is attached to the storage device. It is characterized by being.

  According to a seventh computer equipment data erasure completion certificate issuing system of the present invention, in the sixth computer equipment data erasure completion certificate issuing system, the transmitter has a transmission bar for transmitting information, and the magnetic switch When the attached IC tag is physically separated from the storage device, the transmitter bar is configured to be bent.

  A first computer equipment data erasure completion certificate issuing method according to the present invention includes a magnetic switch IC tag having a magnetic switch connected when a magnetic field is applied and a user information memory in which user information is stored in advance, and a storage device A magnetic field processing step for simultaneously applying the same magnetic field, and a user information reading step for reading the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by applying the magnetic field, And a magnetic data erasure completion certificate issuance step for outputting a certificate indicating that data erasure in the storage device is completed based on user information.

  A second computer equipment data erasure completion certificate issuance method according to the present invention is the first computer equipment data erasure completion certificate issuance method, wherein the user information includes at least a mail address, and the magnetic data erasure completion certificate issuance The step is characterized in that the certificate is transmitted to the mail address.

  A third computer equipment data erasure completion certificate issuing method according to the present invention is the first or second computer equipment data erasure completion certificate issuing method, wherein the IC tag with magnetic switch transmits a transmitter. The user information reading step acquires the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by application of the magnetic field via the transmitter. To do.

  According to a fourth computer equipment data erasure completion certificate issuing method of the present invention, in any one of the first to third computer equipment data erasure completion certificate issuing methods, the magnetic field is a DC magnetic field or a damped alternating magnetic field. Features.

  A fifth computer equipment data erasure completion certificate issuance method according to the present invention is the computer equipment data erasure completion certificate issuance method according to any one of the first to fourth aspects, wherein the IC tag with a magnetic switch is built in the storage device. It is characterized by being.

  The sixth computer equipment data erasure completion certificate issuing method of the present invention is the computer equipment data erasure completion certificate issuing method according to any one of the first to fourth computer equipment data erasure completion certificates, wherein the IC tag with a magnetic switch is attached to the storage device. It is characterized by being.

  A seventh computer equipment data erasure completion certificate issuance method according to the present invention is the sixth computer equipment data erasure completion certificate issuance method, wherein the transmitter has a transmission bar for transmitting information, and the magnetic switch When the attached IC tag is physically separated from the storage device, the transmitter bar is configured to be bent.

  The first magnetic data erasure management server of the present invention has a magnetic switch that is simultaneously applied with the same magnetic field together with a storage device, that is connected when a magnetic field is applied, and a user information memory that stores user information in advance. Magnetic data erasure completion for outputting user information reading means for reading the user information from the user information memory in the IC tag with switch, and outputting a certificate indicating completion of data erasure in the storage device based on the user information And a certificate issuing means.

  According to a second magnetic data erasure management server of the present invention, in the first magnetic data erasure management server, the user information includes at least an e-mail address, and the magnetic data erasure completion certificate issuing means is addressed to the e-mail address. The certificate is transmitted.

  The third magnetic data erasure management server of the present invention is the first or second magnetic data erasure management server, and has a transmitter to which the IC tag with a magnetic switch transmits information, and the user information reading means includes: The user information is acquired via the transmitter from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by applying the magnetic field.

  According to a fourth magnetic data erasure management server of the present invention, in any one of the first to third magnetic data erasure management servers, the magnetic field is a DC magnetic field or a damped alternating magnetic field.

  According to a fifth magnetic data erasure management server of the present invention, in any one of the first to fourth magnetic data erasure management servers, the IC tag with a magnetic switch is built in the storage device. .

  According to a sixth magnetic data erasure management server of the present invention, in any one of the first to fourth magnetic data erasure management servers, the IC tag with a magnetic switch is attached to the storage device. .

  According to a seventh magnetic data erasure management server of the present invention, in the sixth magnetic data erasure management server, the transmitter has a transmission bar for transmitting information, and the IC tag with a magnetic switch is connected to the storage device. It is characterized by having a structure in which the transmission rod can be bent when physically separated.

  A first program of the present invention is a magnetic switch-attached IC tag having a magnetic switch that is simultaneously applied with a storage device and that is connected when a magnetic field is applied, and a user information memory that stores user information in advance. User information reading process for reading the user information from the user information memory in the memory, and a magnetic data erasure completion certificate issuing process for outputting a certificate indicating that the data erasure in the storage device is completed based on the user information And a computer.

  According to a second program of the present invention, in the first program, the user information includes at least a mail address, and the magnetic data erasure completion certificate issuance process transmits the certificate to the mail address. Features.

  According to a third program of the present invention, in the first or second program, the IC tag with a magnetic switch has a transmitter that transmits information, and the user information reading process is performed by applying the magnetic field. The user information is acquired via the transmitter from the user information memory in the IC tag with magnetic switch to which is connected.

  According to a fourth program of the present invention, in any one of the first to third programs, the magnetic field is a DC magnetic field or a damped alternating magnetic field.

  According to a fifth program of the present invention, in any one of the first to fourth programs, the IC tag with a magnetic switch is built in the storage device.

  According to a sixth program of the present invention, in any one of the first to fourth programs, the IC tag with a magnetic switch is attached to the storage device.

  According to a seventh program of the present invention, in the sixth program, the transmitter has a transmission bar for transmitting information, and the IC tag with magnetic switch is physically separated from the storage device. The transmission rod has a structure that can be folded.

  The present invention relates to a process for erasing magnetic data stored in a hard disk or the like and issuing a data erasure completion certificate for certifying that the erasure is completed to a user without actually erasing the magnetic data. It is possible to prevent fraudulent acts such as issuing only a certificate and reliably execute erasure of magnetic data and issuance of a certificate.

  The reason is that a magnetic field is applied to the disk with a built-in IC tag with a magnetic switch storing user information or to the hard disk and the IC tag with a magnetic switch in an integrated state at the same time and under the same conditions. This is because the magnetic data is erased, and on the other hand, a configuration is adopted in which a magnetic data erasure completion certificate is issued by setting a magnetic switch and reading user information.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  Referring to FIG. 1, a magnetic data erasure completion certificate issuing system according to a first embodiment of the present invention is shown.

  The magnetic data erasure completion certificate issuing system according to the first embodiment of the present invention applies a DC magnetic field to the IC tag built-in disk 4 with a magnetic switch via the Internet 3 to erase magnetic data in the hard disk. A DC magnetic field processing apparatus 1 and a magnetic data erasure management server 2 that issues to the user a magnetic data erasure completion certificate that proves that erasure of magnetic data has been completed.

  The DC magnetic field processing apparatus 1 includes a DC magnetic field applying unit 12 that applies a DC magnetic field to the IC tag built-in disk 4 with a magnetic switch, and a data processing unit 11 that controls the DC magnetic field applying unit 12.

  When a DC magnetic field is applied by the DC magnetic field applying means 12, the magnetic data in the IC tag built-in disk 4 with a magnetic switch is erased.

  As reference information regarding the erasure of magnetic data, according to the United States Department of Defense standard, a device that applies a magnetic force of 350 Oersted or less and a device that applies a magnetic force of 750 Oersted or less are introduced for magnetic erasure. It is said that a device that gives a magnetic force of 4000 Oersted is required for a densified recording medium.

  In the present invention, it is assumed that a DC magnetic field of 10,000 to 30,000 Oersted is applied as a result of considering the shape, internal configuration, etc. of the personal computer.

  As a magnetic field for erasing magnetic data, a damped alternating magnetic field as described in JP-A-2005-78713 may be used instead of a DC magnetic field.

  Next, referring to FIG. 2, an IC tag built-in disk 4 with a magnetic switch is shown.

  The IC tag built-in disk 4 with a magnetic switch includes a hard disk medium 5, an IC tag 6 with a magnetic switch, and a registration terminal 7.

  Further, referring to FIG. 3, an IC tag 6 with a magnetic switch is shown.

  This IC tag 6 with a magnetic switch has a magnetic switch 62 whose contact is turned “ON” when a DC magnetic field of “10000 Oersted” or more is applied, and magnetic data in the IC tag built-in disk 4 with a magnetic switch. And a user information memory 61 for storing user information such as an e-mail address, a user name, and a secret word for identifying a user who has requested deletion, and a transmitter 63 for transmitting this information. .

  Further, as shown in FIG. 1, the magnetic data erasure management server 2 manages magnetic data erasure completion certificate issuing means 22 for certifying that erasure of magnetic data is completed, and erasure work of magnetic data. The data processing means 21 is used.

  Next, the magnetic data erasing operation and the magnetic data erasing completion certificate issuing operation of the IC tag built-in disk 4 with a magnetic switch will be described.

  First, the IC tag built-in disk 4 with a magnetic switch is conveyed into the DC magnetic field applying means 12 under the control of the data processing means 11 in the DC magnetic field processing apparatus 1.

  After the transfer process is completed, the data processing unit 11 instructs the DC magnetic field applying unit 12 to start applying the DC magnetic field.

  Upon receiving this instruction, the DC magnetic field applying means 12 receives a DC switch of “10000 Oersted” or more under the same conditions for each of the hard disk medium 5 and the magnetic switch IC tag 6 in the IC tag built-in disk 4 with magnetic switch. Apply a magnetic field.

  The magnetic data in the hard disk medium 5 is erased by applying this DC magnetic field.

  On the other hand, this DC magnetic field “ON” the contact point of the magnetic switch 62 in the IC tag built-in disk 4 with a magnetic switch, and in the IC tag 6 with a magnetic switch, transmission of <user information memory-magnetic switch-transmitter>. The circuit is completed.

  As a result, the magnetic switch IC tag 6 starts transmitting user information such as a mail address, a user name, and a secret word.

  The data processing means 11 reads this user information and transfers it to the magnetic data erasure management server 2 via the Internet 3.

  The magnetic data erasure completion certificate issuing unit 22 receives user information such as an email address, a user name, and a secret word, and then, based on this user information, a data erasure completion certificate that proves that magnetic data erasure is complete Is issued.

  By the above processing, it is possible to prevent unauthorized actions such as issuing only a certificate without actually erasing magnetic data, and to securely execute erasing of magnetic data and issuing of a certificate.

  Next, a second embodiment of the present invention will be described.

  Referring to FIG. 4, the magnetic data erasure completion certificate issuing system according to the second embodiment of the present invention applies a DC magnetic field to a personal computer via the Internet 50 and erases magnetic data such as a hard disk. DC magnetic field processing factory 30, personal computer erasure notification center 20 that performs processing for issuing a data erasure completion certificate that proves that erasure of magnetic data has been completed to the user, and IC tag 6 with a magnetic switch built in the disk Or a user personal computer disposal site X100 having a tag registration device 120 for registering predetermined user information for an IC tag 6 with a magnetic switch integrated with a personal computer for erasing magnetic data, It includes a user call reception site X200, which is a place where a notification of completion of deletion is received.

  First, the configuration of the personal computer DC magnetic field processing factory 30 will be described.

  As shown in FIG. 4, the personal computer direct-current magnetic field processing factory 30 includes a direct-current magnetic field processing means 301 for applying a direct-current magnetic field to erase magnetic data, and personal computer data processing for controlling the erase operation of the magnetic data. Means 302 are provided.

  In this DC magnetic field processing means 301, the magnetic data of the IC tag built-in disk 4 with a magnetic switch or the hard disk in the personal computer is applied by applying a DC magnetic field to the IC tag built-in disk 4 with a magnetic switch or the entire personal computer. The magnetic data is erased.

  Next, the integrated processing of the disposal personal computer and the IC tag box at the user personal computer disposal site X100, and the IC tag with a magnetic switch built in the disk, or the personal computer that erases magnetic data are integrated. The registration process to the IC tag for registering predetermined user information for the IC tag 6 with magnetic switch will be described.

  Referring to FIG. 4, the user personal computer disposal site X100 includes an IC tag built-in disk 4 with a magnetic switch, or an IC tag box 10 with a magnetic switch integrated with a disposal personal computer XX1 for erasing magnetic data, a tag registration device 120, Is provided.

  Referring to FIGS. 6, 7 and 8, this IC tag box with magnetic switch 10 (hereinafter referred to as IC tag 10) is housed in a stick-type case by combining a magnetic switch, an IC tag and a transmitter. Is.

  This IC tag cannot be read except when a DC magnetic field of “10000 Oersted” or higher or the above-described damped alternating magnetic field (hereinafter referred to as DC magnetic field) is applied. The magnetic switch 102 and 1000 character information can be registered and stored, and the user's mail address, user name, secret word, received date, and serial number for identifying the user of the personal computer to be erased and managing the data erasing operation Information (see FIG. 10, hereinafter referred to as information A) and a transmitter 103 that transmits the contents of the information A (transmitted when the magnetic switch contact is “ON”, “ ”Off”), the transmitting rod 104 of the external transmitting antenna, the registration terminal 105, the sealing rubber 107, the battery 108, and the strong adhesive 109 In is configured.

  The IC tag 10 employs a structure covered with a magnetic shielding material so that it is not affected by the magnetic field on the information A and the transmitter 103.

  Referring to FIG. 12, the contact (daily) of the magnetic switch 102 in the IC tag 10 is shown.

  Referring to FIG. 13, the contact of the magnetic switch 102 in the IC tag 10 (application of a DC magnetic field of 10000 Oersted) is shown.

  Referring to FIG. 14, the flow of the information memory when the transmission bar 104 of the IC tag 10 is broken is shown.

  The magnetic switch 102 is a magnetic switch 102 that does not turn “ON” except when a DC magnetic field is applied, and continues to operate when the DC magnetic field is received.

    The transmitter 103 has a function of transmitting information A to the outside via the transmitter rod 104 while the contact switch of the magnetic switch is “ON”.

  The transmission bar 104 has an antenna function for transmitting and spreading information A to the outside.

  As shown in FIG. 2, the IC tag 10 is used by being built in a disk.

  Further, the IC tag 10 may be configured to be affixed to a personal computer by means of integration (hereinafter referred to as a strong adhesive 109, for example).

  A magnetic field is applied to each of the disk 4 and the IC tag 10 of the IC tag built-in disk 4 with the magnetic switch or to the personal computer XX1 and the IC tag 10 in an integrated state at the same time and under the same conditions. In addition to erasing magnetic data, on the other hand, by setting a magnetic switch and reading information A, a data erasure completion certificate is issued and a means for verifying that the user has discarded the personal computer is provided .

  The registration terminal 105 is a terminal for connecting the IC tag 10 and the tag registration device 120.

  The terminal is pulled out after registration is completed, and a sealing rubber 107 is inserted into the hole.

  The sealing rubber 107 is for filling a hole after the registration terminal 105 is pulled out.

  Thus, after the sealing rubber 107 is inserted, the registration terminal 105 cannot be reconnected.

  The battery 108 has a function of supplying power to the information memory 101, the magnetic switch 102, and the transmitter 103.

  Referring to FIG. 9, a configuration diagram of a tag registration device 120 that registers information A in the IC tag 10 is shown.

  The tag registration device 120 includes a liquid crystal display unit 120A, a keyboard 120B, a battery 120C, a connection terminal 120D, and a communication device 120E.

  The tag registration device 120 transmits information about identifying the user of the personal computer to be erased to the personal computer erasure notification center 20 via the Internet 50 as a user name, the number of personal computers, and an email address (hereinafter referred to as three-point information). Send).

  Next, operations of the DC magnetic field processing means 301 in the personal computer DC magnetic field processing factory 30 and the personal computer data processing means 302 for controlling the DC magnetic field processing means 301 will be described in detail with reference to FIGS. Explained.

  DC magnetic field processing means 301 applies a DC magnetic field of 10,000 Oersted or more to the IC tag built-in disk 4 with a magnetic switch or a personal computer (hereinafter referred to as a personal computer) to destroy internal magnetic data; It has a function of reading information A in the IC tag 10.

  15 and 16, the DC magnetic field processing means 301 includes a demagnetizing box 301B having a function of erasing magnetic data, a belt conveyor 301A for moving a personal computer to be erased into the demagnetizing box 301B, and a discarded personal computer. Is composed of an on-sensor 301AS1 that detects that the toner enters the demagnetizing box 301B, a belt switching machine 301CHG, and a visual inspection corner 301NG.

  Further, referring to FIGS. 19 and 20, the demagnetizing box 301B is composed of a magnetic force application terminal 301B1 for applying a DC magnetic field and a receiving antenna 301B2.

  The magnetic force application terminal 301B1 in the demagnetization box 301B is incorporated in the demagnetization box 301B and has a function of continuing to apply a magnetic force of 10,000 oersted or more while the detection of the input sensor 301AS1 is “ON”.

  The belt conveyor 301A has a function of sequentially transferring a large number of personal computers whose data are to be erased to the demagnetizing box 301B.

  While the conveyed personal computer is in the demagnetizing box 301B, the on-sensor 301AS1 detects the personal computer.

  During this detection, a DC magnetic field from the demagnetizing box 301B is applied, the magnetic switch in the IC tag 10 is turned “ON”, and the receiving antenna 301B2 receives the information A in the IC tag 10.

  The belt switching machine 301CHG has a function of switching whether it is transported to the personal computer disposal site 40 or the visual inspection corner 301NG as the next transport destination of the personal computer.

  When the information A is read as scheduled, the conveyance roller 301WAY is rotated forward and conveyed to the personal computer disposal site 40. When the information A is not read, the conveyance roller 301WAY is reversed to take an abnormality treatment. Therefore, it is conveyed to the visual inspection corner 301NG (FIGS. 17 and 18).

  As shown in FIG. 2, the personal computer data processing unit 302 includes a CPU 399, an information A reception memory unit 302A, a communication processing unit 302B, and a serial number comparison file 302C.

  In the information A received from the DC magnetic field processing means 301, duplicate information is deleted and stored in the information A reception memory 302A.

  The communication processing unit 302 </ b> B has a function of sending information obtained by adding the received date and the data-erased factory name to the information A to the personal computer erasure notification center 20 via the Internet 50.

  The serial number comparison file 302C has a function of receiving and storing serial number information created by the personal computer erasure notification center 20.

  Next, the configuration of the personal computer erasure notification center 20 will be described.

  As shown in FIG. 4, the personal computer erasure notification center 20 includes a data processing device 201 that operates under program control, and user information (hereinafter referred to as information Information B reception processing unit 203, data erasure completion certificate creation processing unit 202, communication processing unit 204, saved file processing unit 205, fraud processing unit 206, and the like. , A user list means 207, an access prohibition address table 208, a sending file 210, a certificate file 211, and an NG file 220.

  It is verified whether the user name, e-mail address, and serial number are correct for the information B received from the personal computer DC magnetic field processing factory 30 in each place (the information of the factory where the data was deleted from the information A and the user information added with the reception date). When the verification result is correct, the information B is stored and stored in the information B reception processing unit 203.

  The data erasure completion certificate creation processing unit 202 creates a data erasure completion certificate as confirmation that the disk or personal computer disposal processing and data erasure processing have been completed, and stores the data erasure completion certificate as a storage file processing unit. Stored in 205.

  A sample data erasure completion certificate is shown in FIG.

If the verification result is invalid, the fraud processing unit 206 is notified.
The fraud processing unit 206 creates a fraudulent computer discovery notice for notifying the discovery of a fraudulent disk or a fraudulent personal computer (hereinafter referred to as a fraudulent personal computer), and stores this notice in the saved file processing unit 205.

  FIG. 24 shows a sample unauthorized personal computer discovery notification.

The user list means 207 instructs the serial number creation unit 207B to receive the three-point information (user name, number of computers, and mail address) from the tag registration device 120 and to automatically number the serial numbers. Function to
The serial number and the reception date (year / month / day / hour / minute / second) are added to the three-point information and stored in the user list 207A.

  The access prohibition address table 208 registers special addresses such as administrative and police, and when the mail address designated by the user corresponds to this address, it is handled as an unauthorized operation.

  The certificate file 211 is a file for creating a data erasure completion certificate, and the user information of the information A (user's e-mail address, user name, password, reception date, and (Serial number) is pasted and the completed “data erasure completion certificate” is stored.

As a result, the respective information is pasted in the user name field 211A, address field 211B, serial number field 211C, secret word field 211D, registration date field 211E, work date field 211F, and factory name field 211G of the certificate file 211. The file 210 is a file used when sending the data erasure completion to the requesting user. The mail address of the information A and the “data erasure completion certificate” in the certificate file 211 are pasted. (See FIG. 26).

  The NG file 220 is used to store a fraud factor when fraud is detected in the information A or the information B.

  The information of the NG file 220 is pasted on the “illegal personal computer discovery notification” and notified to the user (see FIG. 27).

  The communication processing unit 204 has a function of receiving three-point information (user name, the number of personal computers, and an e-mail address) from the registration machine, a function of returning the serial number automatically assigned by the user list unit 207 to the registration machine, The function of receiving the information A from the personal computer DC magnetic field processing factory 30 and the mail of “data erasure completion certificate” to the user mobile phone XX2, user disk, or user personal computer (hereinafter referred to as user personal computer XX3) Has the function of

  Next, the personal computer disposal site 40 will be described.

  As shown in FIG. 4, the personal computer disposal site 40 is a conventional personal computer dismantling site or factory.

  After erasing the data on the computer, it is handed over to the main factory and dismantled as before.

  The visual inspection corner 301NG is a place for collecting personal computers for which information A was not obtained under a direct current magnetic field due to breakage of the transmission rod 104 or the like.

  A staff member will directly check the cause and report the investigation report to the Notification Center.

  Next, the user incoming site X200 will be described.

  As shown in FIG. 4, the user incoming site X200 is a site for receiving a notification that the personal computer has been discarded and data erasure has been completed.

  From the personal computer erasure notification center 20, it is delivered to the Internet to the e-mail address designated for the user.

  The user arrival site X200 is configured by a user mobile phone XX2 or a user personal computer XX3.

  Next, the operation of the first embodiment of the present invention will be described in detail with reference to the flowcharts of FIGS.

  First, the user personal computer XX1 is specified at the user personal computer disposal site X100 (step A1).

  The tag registration device 120 sends three-point information (user name, number of computers, and mail address) to the personal computer erasure notification center 20 via the Internet 50 (step A2).

  The personal computer erasure notification center 20 appends the received date and time and the serial number automatically assigned to the received three-point information, and stores it in the user list table 207A (step A3).

  Next, the personal computer deletion notification center 20 returns serial numbers corresponding to the number of personal computers to the tag registration device 120 via the Internet 50 (step A4).

  This is because when one user discards a large number of personal computers, the data of the planned number is erased by the management of the same serial number, and the data erasure completion certificate for the number is issued.

  The IC tag 10 is physically connected to the tag registration device 120 (step A5).

  Individual serial numbers are sequentially written from the tag registration device 120 to each IC tag 10 (step A6).

  Next, the tag registration device 120 registers the user information (e-mail address, user name, password) input by the user in the user information memory A101A in the IC tag 10 (FIG. 10, step A7).

  After the registration is completed, in order to prevent unauthorized reading of user information, the registration terminal 105 of the IC tag 10 is pulled out and the sealing rubber 107 is inserted (step A8).

  The IC tag 10 and the personal computer are pasted by an integrated means (hereinafter, the personal computer with the IC tag is referred to as a personal computer) (step A9).

  The personal computer is collected and transported to the personal computer DC magnetic field processing factory 30 by the trader (step A10).

  Next, the work in the personal computer DC magnetic field processing factory 30 will be described (steps A11 to A25).

  Data exchange in the personal computer DC magnetic field processing factory 30 and operation instructions to the DC magnetic field processing means 301 are all processed by the personal computer data processing means 302 as shown in FIG. 16).

  The personal computer group collected from each site is placed on the belt conveyor 301A and conveyed to the DC magnetic field position (step A11).

  From when the personal computer enters the demagnetizing box 301B until it leaves, the incoming sensor 301AS1 detects the personal computer, and the personal computer data processing means 302 waits for detection from the incoming sensor 301AS1 (step A12).

  When the personal computer enters the demagnetization box 301B, an instruction to start application of a DC magnetic field and an instruction to start reception of the reception antenna 301B2 are given to the demagnetization box 301B (step A13).

  By this instruction, the magnetic force application terminal 301B1 in the demagnetizing box 301B starts to apply a DC magnetic field of 10,000 Oersted or more.

  As a result, the DISK surface is destroyed at once, and the contact of the magnetic switch 102 in the IC tag 10 is turned “ON”. In the IC tag 10, the transmission circuit of <information A-magnetic switch contact-transmitter> Upon completion, the IC tag 10 starts transmitting information A (FIGS. 21, 22, 12, and 13) (step A14).

  The receiving antenna 301B2 in the demagnetizing box 301B receives the information A (user's e-mail address, user name, password, reception date, and serial number information) and automatically transfers the information A to the personal computer data processing means 302. (Step A15).

All information A overlaps are discarded by the information A reception memory means 302B (step A16).
Further, while the personal computer passes through the demagnetizing box 301B, the transmission operation is repeated several times to prevent the loss of sending and receiving of information A.

  Wait until the personal computer exits the demagnetizing box 301B (step A17).

  When the personal computer moves and exits from the demagnetization box 301B, the personal computer data processing unit 302 instructs the magnetic force application terminal 301B1 to stop applying the DC magnetic field, the receiving antenna 301B2 to stop the receiving operation, and transfers information A. A stop instruction is given (step A18).

  All the operations in the demagnetizing box 301B are stopped and wait for the next personal computer (step A19).

  The information A reception memory means 302A determines whether the reception date is correct, compares the serial number with the serial number comparison file 302C, and determines whether the correct information A is received (step A20).

  When the information A is correctly received, the process proceeds to step A23.

  If the information A is not correctly received, the conveyance roller 301WAY of the belt switching machine 301CHG is reversed and the personal computer is conveyed to the visual inspection corner 301NG (FIGS. 17 and 18) (step A22).

  The personal computer and IC tag 10 were visually inspected by a staff member, and NG personal computer information (date, personal computer model number, number machine, presence / absence of IC tag 10 and broken transmission stick 104, etc.) indicating that the computer was erased was illegal. The inspection result is attached and sent to the NG file 220 in the personal computer erasure notification center 20 (step A22) (FIG. 28).

  When the information A is correctly received, the conveyance roller 301WAY of the belt switching machine 301CHG is rotated forward and the process proceeds to the personal computer disposal site 40 (step A23).

  The personal computer is transferred to the conventional dismantling work and processed (step A24).

  Thereafter, the date received by the communication processing means 302B and the information B obtained by adding the factory name of the processing factory 30 to the information A are sent to the certificate file 211 in the personal computer erasure notification center 20 (FIG. 11, step A25). .

  Next, the process proceeds to the work process at the personal computer erasure notification center 20 (FIG. 4).

  First, the communication processing unit 204 receives information B from various locations and stores it in the information B reception processing unit 203 (step A26).

  The information B reception processing unit 203 checks whether the mail address, user name, serial number, secret word, reception date, and factory name of the information B are correct (FIG. 11, step A27).

  For email addresses, check the following items:

    ・ Does it consist of mail specification characters?

    -Is the format correct?

    ・ Is it not a government office or other access prohibited address?

    -Is it a wanted address?

    ・ Check that the number of dots is correct.

  If even one is illegal, the process proceeds to step A34.

  If all are correct, the process proceeds to the next step A28.

  In the item of user name and serial number, it is confirmed whether it corresponds to the user list 207A or whether the serial number and user name match (step A28).

  If everything is normal, the mail address of information B is pasted to the address part 210A of the sending file 210 and the address field 211B of the certificate file 211, and preparations for sending mail to the user are made (step A29).

  Paste information B serial number, secret word, received date as work date, factory name in serial number field 211C, secret word field 211D, registration date field 211E, work day field 211F, factory name field 211G of certificate file 211 Then, a “data erasure completion certificate” is created (step A30).

  The completed certificate file 211 is pasted in the text field 210B of the sending file 210 (step A31).

  The communication processing unit 204 transmits the same text “data erasure completion certificate” to the address of the requesting user of the sending file 210 (step A32).

  The certificate file 211 is stored in the storage file 205 for a certain period of time as confirmation that the operation of disposal of the personal computer, data erasure, and data erasure completion certificate has been completed (step A33).

  As the final work process, the process moves to the process at the user incoming site X200.

  The data erasure completion certificate from the personal computer erasure notification center 20 is received by mail on the user mobile phone XX2 or the personal computer XX3 (step A34).

  The user confirms that the contents of information B (password, date and time of data erasure and factory name) are included in the “data erasure completion certificate” (step A35).

  Next, the fraud processing step will be described.

  When receiving the notification of the NG personal computer information from the personal computer DC magnetic field processing factory 30, the notification center staff issues an emergency report to the requesting user based on the content of this information (step A36).

  Next, the device name, unit number, and inspection date of the NG personal computer information are displayed in the NG title column 220A of the NG file 220, the presence / absence of the IC tag 10 of the NG personal computer information in the tag presence / absence column 220B, and the presence / absence of the NG personal computer information transmission bar 104 Is pasted into the transmission bar presence / absence column 220C and the fraud factor of the NG personal computer information is pasted into the fraud factor column 220D (step A36).

  Prepare to send an “unauthorized computer discovery notice” to the requesting user.

  First, the mail address is pasted from the user list 207A to the address part 210A of the sending file 210, and then the NG file 220 is pasted to the body part 210B of the sending file 210 (step A37).

  As a result, this notice displays the following:

  ・ Information A could not be read, or the email address or user name of information B was found to be inconsistent.

  ・ Display the result of visual inspection by the staff.

  -Data erasure is completed by applying a DC magnetic field.

  -The actual personal computer is stored in the personal computer DC magnetic field processing plant 30.

-The option to start or return the PC with the user's approval and request.
Finally, the “unauthorized personal computer discovery notification” is sent from the communication processing means 204 to the sending file 210 (step A37).

  Next, effects of the first exemplary embodiment of the present invention will be described.

  The first effect is that the magnetic data stored in the hard disk or the like is erased, and the process of issuing a data erasure completion certificate that proves the completion of the erasure to the user is not actually erased. Thus, it is possible to prevent illegal acts such as issuing only a certificate, and to securely delete magnetic data and issue a certificate.

  The second effect is that the DC magnetic field is applied to the entire surface of a device such as a personal computer for erasing data, so there is no need to disassemble the device. Even the apparatus can be erased in a short time.

  A third effect is that personal computer data erasure completion certification information can be automatically issued as a data erasure completion certificate to a requesting user.

It is a figure which shows the structure of the magnetic data erasure completion certificate issuing system which is the 1st Embodiment of this invention. It is an external view of the disk 4 with a built-in IC tag with a magnetic switch in the first embodiment of the present invention. It is a block diagram of IC tag 6 with a magnetic switch in a 1st embodiment of the present invention. It is a figure which shows the structure of the magnetic data erasure completion certificate issuing system which is the 2nd Embodiment of this invention. It is a related lineblock diagram of personal computer direct-current magnetic field processing factory 30 and personal computer processing equipment in a 2nd embodiment of the present invention. It is an external view of the IC tag box 10 with a magnetic switch in the 2nd Embodiment of this invention. It is a block diagram (upper figure) of IC tag box 10 with a magnetic switch in the 2nd Embodiment of this invention. It is a block diagram (horizontal view) of the IC tag box 10 with a magnetic switch in the 2nd Embodiment of this invention. It is a block diagram of the tag registration machine 120 in the 2nd Embodiment of this invention. It is a figure which shows the registration content of the user information memory A in the IC tag 10 in the 2nd Embodiment of this invention. It is a figure which shows the registration content of the user information memory B in 10 in IC tag in the 2nd Embodiment of this invention. It is a figure which shows the contact (daily) of the magnetic switch 102 in the IC tag 10 in the 2nd Embodiment of this invention. It is a figure which shows the contact (application of DC magnetic field 10,000 Oersted) of the magnetic switch 102 in the IC tag 10 in the 2nd Embodiment of this invention. It is a figure which shows the flow of the information memory at the time of the transmission stick 104 breaking of the IC tag 10 in the 2nd Embodiment of this invention. It is a figure which shows the structure (horizontal view) of the DC magnetic field processing means 301 in the 2nd Embodiment of this invention. It is a figure which shows the structure (upper figure) of the DC magnetic field processing means 301 in the 2nd Embodiment of this invention. It is a figure which shows the structure (upper figure) of the belt switching machine 301CHG in the 2nd Embodiment of this invention. It is a figure which shows the structure (horizontal view) of the belt switching machine 301CHG in the 2nd Embodiment of this invention. It is a figure which shows the internal structure (front view) of the demagnetizing box 301B in the 2nd Embodiment of this invention. It is a figure which shows the internal structure (upper figure) of the demagnetizing box 301B in the 2nd Embodiment of this invention. It is a figure which shows the structure of the magnetic DISK surface in the 2nd Embodiment of this invention. It is a figure which shows the structure of the magnetic DISK surface under the direct-current magnetic field in the 2nd Embodiment of this invention. It is a figure which shows the "data erasure completion certificate" sample in the 2nd Embodiment of this invention. It is a figure which shows the "illegal personal computer discovery notice" sample in the 2nd Embodiment of this invention. It is a figure which shows the user list 207A sample in the 2nd Embodiment of this invention. It is a figure which shows the structure of the delivery file 210 in the 2nd Embodiment of this invention. It is a figure which shows the structure of the certificate file 211 in the 2nd Embodiment of this invention. It is a figure which shows the structure of the NG file 220 in the 2nd Embodiment of this invention. It is a flowchart (1/4) of the data erasing process in the 2nd Embodiment of this invention. It is a flowchart (2/4) of the data erasing process in the 2nd Embodiment of this invention. It is a flowchart (3/4) of the data erasing process in the 2nd Embodiment of this invention. It is a flowchart (4/4) of the data erasure | elimination process in the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 DC magnetic field processing apparatus 2 Magnetic data deletion management server 3 Internet 4 Disk with built-in IC tag with magnetic switch 5 Hard disk medium 6 IC tag with magnetic switch 7 Registration terminal 10 IC tag 20 Personal computer erasure notification center 30 Personal computer DC magnetic field processing factory 40 PC disposal 50 Internet 61 User information memory 62 Magnetic switch 63 Transmitter 101A User information memory A
DESCRIPTION OF SYMBOLS 102 Magnetic switch 103 Transmitter 104 Transmission stick 105 Registration terminal 107 Sealing rubber 108 Battery 109 Strong adhesive 120 Tag registration machine 120A Liquid crystal display part 120B Keyboard 120C Battery 120D Connection terminal 120E Communication apparatus 201 Data processing apparatus 202 Data deletion completion certificate creation Processing unit 203 Information B reception processing unit 204 Communication processing unit 205 Saved file processing unit 206 Unauthorized processing unit 207 User list unit 207A User list table 207B Serial number creation unit 208 Access prohibited address table 210 Send file 211 Certificate file 211A User name field 211B Address field 211C Serial number field 211D Secret word field 211E Registration date field 211F Work date field 211G Factory name field 210A Address part 210B Body part 211 Certificate field IL 220 NG file 220A NG title field 220B Tag presence / absence field 220C Transmission rod presence / absence field 220D Fraud factor field 301 DC magnetic field processing means 301A Belt conveyor 301AS1 Sensor 301B Demagnetization box 301B1 Magnetic force application terminal 301B2 Reception antenna 301CHG Belt switching machine 301NG Visual inspection corner 301WAY Conveying roller 302C Serial number comparison file 302 Personal computer data processing means 399 CPU
X100 User PC disposal site X200 User termination site XX1 Discard PC XX2 User mobile phone XX3 User PC

Claims (21)

Magnetic field processing means for simultaneously applying the same magnetic field to an IC tag with a magnetic switch having a magnetic switch connected when a magnetic field is applied and a user information memory in which user information is stored in advance, and a storage device, and application of the magnetic field The user information reading means for reading the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected, and the erasure of data in the storage device based on the user information are completed A computer data erasure completion certificate issuing system comprising: a magnetic data erasure completion certificate issuing means for outputting a certificate to be displayed. 2. The computer equipment data erasure completion certificate according to claim 1, wherein the user information includes at least an e-mail address, and the magnetic data erasure completion certificate issuing means transmits the certificate to the e-mail address. Issuing system. The IC tag with magnetic switch has a transmitter for transmitting information, and the user information reading means is connected to the user information memory in the IC tag with magnetic switch to which the magnetic switch is connected by application of the magnetic field. 3. The computer device data erasure completion certificate issuing system according to claim 1, wherein the user information is acquired via a transmitter. 4. The computer equipment data erasure completion certificate issuing system according to claim 1, wherein the magnetic field is a direct current magnetic field or a damped alternating magnetic field. 5. The computer equipment data erasure completion certificate issuing system according to claim 1, wherein the IC tag with a magnetic switch is built in the storage device. 5. The computer equipment data erasure completion certificate issuing system according to claim 1, wherein the IC tag with a magnetic switch is attached to the storage device. The transmitter has a transmission rod for transmitting information, and has a structure in which the transmission rod can be folded when the IC tag with magnetic switch is physically separated from the storage device. 7. The computer equipment data erasure completion certificate issuing system according to claim 6. A magnetic field processing step in which the magnetic field processing means applies the same magnetic field simultaneously to an IC tag with a magnetic switch having a magnetic switch connected when a magnetic field is applied and a user information memory in which user information is stored; and a storage device; A user information reading means for reading the user information from the user information memory in the IC tag with the magnetic switch to which the magnetic switch is connected by applying the magnetic field; and issuing a magnetic data erasure completion certificate And a magnetic data erasure completion certificate issuance step for outputting a certificate indicating that data erasure in the storage device is completed based on the user information. Issuance method. 9. The user information includes at least a mail address, and in the magnetic data erasure completion certificate issuance step , magnetic data erasure completion certificate issuance means transmits the certificate to the mail address. The computer device data erasure completion certificate issuance method described. The IC tag with a magnetic switch has a transmitter for transmitting information, and in the user information reading step , the user information reading means is connected to the magnetic switch with the magnetic switch by application of the magnetic field. 10. The computer equipment data erasure completion certificate issuing method according to claim 8, wherein the user information is acquired from a user information memory via the transmitter. 11. The computer equipment data erasure completion certificate issuing method according to claim 8, wherein the magnetic field is a direct current magnetic field or a damped alternating magnetic field. 12. The computer equipment data erasure completion certificate issuing method according to claim 8, wherein the IC tag with a magnetic switch is built in the storage device. 12. The computer equipment data erasure completion certificate issuing method according to claim 8, wherein the IC tag with a magnetic switch is attached to the storage device. The transmitter has a transmission rod for transmitting information, and has a structure in which the transmission rod can be folded when the IC tag with magnetic switch is physically separated from the storage device. 14. The computer equipment data erasure completion certificate issuing method according to claim 13. The user from the user information memory in the IC tag with magnetic switch, which has a magnetic switch that is simultaneously applied with the storage device and that is connected when the magnetic field is applied, and a user information memory in which user information is stored in advance. User information reading means for reading information; and magnetic data erasure completion certificate issuing means for outputting a certificate indicating that data erasure in the storage device is completed based on the user information. Magnetic data erasure management server. 16. The magnetic data erasure management server according to claim 15, wherein the user information includes at least a mail address, and the magnetic data erasure completion certificate issuing unit transmits the certificate to the mail address. The IC tag with magnetic switch has a transmitter for transmitting information, and the user information reading means is connected to the user information memory in the IC tag with magnetic switch to which the magnetic switch is connected by application of the magnetic field. The magnetic data erasure management server according to claim 15 or 16, wherein the user information is acquired via a transmitter. 18. The magnetic data erasure management server according to claim 15, wherein the magnetic field is a direct current magnetic field or a damped alternating magnetic field. The user from the user information memory in the IC tag with magnetic switch, which has a magnetic switch that is simultaneously applied with the storage device and that is connected when the magnetic field is applied, and a user information memory in which user information is stored in advance. Causing a computer to perform a user information reading process for reading information and a magnetic data erasure completion certificate issuing process for outputting a certificate indicating that data erasure in the storage device is completed based on the user information. A featured program. The program according to claim 19 , wherein the user information includes at least a mail address, and the magnetic data erasure completion certificate issuance process transmits the certificate to the mail address. The IC tag with magnetic switch has a transmitter for transmitting information, and the user information reading process is performed from the user information memory in the IC tag with magnetic switch to which the magnetic switch is connected by application of the magnetic field. 21. The program according to claim 19 , wherein the user information is acquired via a transmitter.

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