JP2006040032A - Information processor and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processor for reducing any trouble taken for a process for setting a specific password in each the information processor, improving convenience when exchanging the information processor, and restricting unjust access to a storage device such as a hard disk. <P>SOLUTION: A control circuit 29 acquires a serial number of a hard disk 24 connected to an on-vehicle navigation device 1, and registers a password commonized between the plurality of information processors into the hard disk 24. When starting a system, the hard disk 24 is authenticated by use of the password and the serial number, and access to the hard disk 24 is restricted on the basis of a result of the authentication. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technique for preventing unauthorized use of information stored in a storage device in an information processing device to which a storage device that stores information used for information processing is connected.

  In recent years, in-vehicle navigation devices have been widely used as information processing devices connected to a storage device that stores information used for information processing. As a storage device used in such an in-vehicle navigation device, a storage device that can be accessed at a high speed with a large capacity, represented by a hard disk (also referred to as an HDD), and that can write as well as read information. It came to be used. The background of the use of readable and writable large-capacity storage devices such as hard disks for in-vehicle navigation devices has led to demands to write various information desired by users. Is mentioned. Examples of information written on a hard disk used in a vehicle-mounted navigation device include music data recorded from a music CD, image data taken by a digital camera, etc., data such as e-mail received via a communication function The address and telephone number input to use the location registration function of the navigation device can be mentioned.

  On the other hand, hard disks are widely used as storage devices used in information processing apparatuses such as personal computers. Therefore, even if it is a hard disk mounted in the vehicle-mounted navigation device, there is a possibility that the hard disk can be easily accessed by using a personal computer. If a hard disk mounted on an in-vehicle navigation device is connected to another information processing device and the hard disk is accessed, music data protected by copyright or personal information related to privacy is illegally used. There is a risk. Further, when map data or the like used for the navigation function is stored in the hard disk, there is a possibility that the data is illegally duplicated and used by other in-vehicle navigation devices.

In order to solve such a problem, Patent Document 1 discloses the following technique. That is, a unique password for each device is stored in advance in the navigation device, and the unique password is registered in a hard disk connected to the navigation device. On the other hand, the hard disk is protected so that access to the hard disk is restricted unless a registered password is used. Therefore, access to the hard disk is restricted unless the information processing apparatus stores the same password as that registered in the hard disk. In this way, by associating the navigation device and the hard disk in a one-to-one correspondence with the unique password, unauthorized use of information stored in the hard disk can be prevented.
JP 2001-196986 A

  In the prior art as described above, in order to store a password for restricting access to the hard disk in the navigation device in advance, an operation process of registering the password in the navigation device before connecting the hard disk in the manufacturing process of the navigation device or the like is required. However, the task of setting unique information for each device, such as a unique password used in the prior art, has a problem that it takes more time than the task of registering information common to the devices.

  In addition, since a unique password is set for each navigation device on the hard disk, if the navigation device to which the hard disk is connected fails, the hard disk is not replaced. The password on the navigation device does not match the password on the hard disk. Therefore, the new navigation device has a problem that the hard disk connected to the failed navigation device cannot be used. In order to use the hard disk connected to the failed navigation device with the new navigation device, the access restriction to the hard disk by the password must be lifted. However, since the password is confidential, it is not easy to cancel it. Also, if you obtain the password in some way and cancel the password set on the hard disk, it becomes possible to access this hard disk with other information processing devices such as personal computers, and protect the information stored on the hard disk Function will be lost. Therefore, it is not preferable to release the hard disk password. For this reason, when the navigation device to which the hard disk is connected fails and the navigation device itself must be replaced, the hard disk must also be replaced with a new one. In that case, the information stored in the hard disk connected to the failed navigation device is lost, and such a situation is very inconvenient for the user. Such a problem is brought about by a configuration in which a secret password unique to each navigation device is set in the hard disk.

  Therefore, the present invention has been made in view of such problems, and the object thereof is as follows. In other words, unauthorized access to a storage device such as a hard disk while reducing the time and effort required to set a unique password for each information processing device and improving the convenience of information processing device replacement. An information processing apparatus that restricts

  The information processing apparatus according to claim 1, which has been made in order to solve the above-described problem, is an information processing apparatus to which an information storage device including unique information that is assigned to each information storage device is identifiable. The unique information storage means, the unique information acquisition means for reading the unique information from the information storage device and registering it in the unique information storage means, and the unique information from the information storage device in a situation where the unique information is stored in the unique information storage means Is read, the determination means for determining whether or not the read unique information and the unique information stored in the unique information storage means match, and if the determination means determines that they do not match, the information storage Access control means for restricting access to the apparatus.

  The information processing device according to claim 1 associates the information processing device with the information storage device by reading the unique information included in the information storage device and storing it in the unique information storage means. Based on the determination as to whether or not the unique information stored in the unique information storage means matches the unique information read from the information storage device connected to the information processing device, Restrict access. That is, if the unique information read from the information processing device does not match the unique information stored in the information storage device, it can be determined that the information storage device connected to the information processing device is not a legitimate information storage device. Therefore, the information processing device restricts access to the information storage device. In this way, it is possible to prevent unauthorized use of information stored in the information storage device.

  The access restriction performed by the information processing apparatus may prohibit access to all storage areas and data in the information storage apparatus, or access to specific storage areas or data that should not be used illegally. You may only ban.

  In addition, since the information processing device and the information storage device are associated by acquiring the unique information included in the information storage device, there is no need to set a unique password in the information processing device in advance. Therefore, in the manufacturing process of the information processing apparatus and the like, it is possible to save labor for registering a unique password for each information processing apparatus before connecting the information storage device.

  In addition, as the unique information provided in the information storage device, for example, it is preferable to use a serial number (which may be the same as the serial number) given to the product by the manufacturer for the management number of the information storage device or the like, Other information may be used as long as the information storage device can be identified. Such unique information does not need confidentiality like a so-called password, and is preferably open information. The information processing apparatus according to claim 1 is configured so that, instead of registering a unique password in advance, such information unique to the information storage device is acquired and stored in the unique information storage unit of the information processing device. It is configured. Therefore, if it is necessary to replace the device because the information processing device has failed, it will fail if the manufacturer stores the unique information provided in the information storage device connected to the failed information processing device in advance in the new information processing device. The information storage device connected to the information processing apparatus can be used as it is connected to the new information processing apparatus.

  An information processing device according to claim 2 is the information processing device according to claim 1, wherein the information storage device has a function of restricting access from the information processing device by registering a password. The password is stored in the information storage device by the password storage means for storing the predetermined password, the password registration determination means for determining whether or not the password is registered in the information storage device, and the password registration determination means. And a password canceling means for requesting the information storage device to cancel access restriction using a predetermined password stored in the password storage means.

  As described in claim 2, the information storage device has a function of restricting access from the information processing device by registering the password, so that the information processing device that does not match the password, that is, the regular information processing device Unauthorized access to the information storage device by other information processing devices that are not present can be prevented.

  By the way, when a new information storage device that is not set with a password access restriction is connected to the information processing device, the information processing device acquires unique information from the information storage device and stores the password stored in the information processing device. Is registered in the information storage device so that the information processing device and the new information storage device are automatically associated with each other to set restrictions on access to the new information storage device. .

  Therefore, as in the information processing device according to claim 3, the information processing device according to claim 2 further comprises password registration means, and the password registration determination means determines that the password is not registered in the information storage device. In this case, the unique information acquisition means reads the unique information included in the information storage device and registers it in the unique information storage means, and the password registration means stores information based on a predetermined password stored in the password storage means. It may be configured to register a password in the device.

  In the information processing device according to claim 3, when the password is not registered in the information storage device and access is not restricted by the information storage device, the information storage device is used by another information processing device. It is determined that there is no new information storage device. Therefore, even when a new information storage device for which access restriction by password is not set is connected to the information processing device, access restriction to the information storage device by password and unique information is automatically set. Thus, unauthorized use of information stored in the information storage device can be prevented. According to the information processing apparatus configured as described above, for example, when the information storage apparatus connected to the information processing apparatus has failed and is replaced with a new information storage apparatus, the new information storage apparatus is connected to the information processing apparatus. This is convenient because restrictions on access to the information storage device are automatically set.

  According to a fourth aspect of the present invention, the predetermined password stored in the password storage means is preferably a common password among a plurality of predetermined information processing apparatuses. Note that a password common to a plurality of predetermined information processing devices here means that the confidentiality of the password depends on the operation of the manufacturer, for example, for each manufacturer, each model of the information processing device, and each destination. It is preferable to set a common password as long as it is protected.

  In the information processing apparatus according to the present invention, the information processing apparatus and the information storage apparatus are associated one-to-one by acquiring the unique information included in the information storage apparatus. Even if the access restriction on the information storage device side is lifted, access to the information storage device is restricted by the information processing device depending on whether the unique information matches. In other words, even if information processing devices manufactured by the same manufacturer and given the same password are connected to the same information processing device if the unique information stored in the information processing devices is different. When the information storage device is connected to another information processing device, access to the information storage device is restricted by the information processing device. Therefore, as long as the confidentiality of the password is protected, even if the password is shared among a plurality of information processing devices according to the operation of the manufacturer, the information stored in the information storage device may be used illegally. Can be prevented.

  By sharing the password among a plurality of information processing apparatuses, it is possible to save time and labor for registering a unique password for each information processing apparatus. In addition, if the password is shared for each manufacturer or model, for example, if the information processing device fails and needs to be replaced, if you prepare a new information processing device with the same password as the failed information processing device, The password of the information storage device connected to the failed information processing device matches the password of the new information processing device. Therefore, the information storage device connected to the failed information processing device can be connected to the new information processing device and used only by registering the unique information of the information storage device in the new information processing device on the manufacturer side.

  An information processing apparatus according to claim 5 is the information processing apparatus according to any one of claims 2 to 4, wherein the access control means is registered in the information storage device in response to a request from the password releasing means. When it is determined that the access restriction on the information storage device side by the password is released and the unique information read from the information storage device by the determination means matches the unique information stored in the unique information storage means, the information storage It is characterized in that access to the device is not restricted.

  In this way, by using the password stored in the password storage means, the access restriction on the information storage device side is released, and further, the unique information read from the information storage device and the unique information storage means are stored. If the specific information matches, the information storage device connected to the information processing device can be determined to be a legitimate information storage device. In this case, since there is no need to restrict access to the information storage device, the information processing device does not restrict access to the information storage device. Therefore, all the information related to copyright and personal privacy and other information used for information processing can be used.

  An information processing apparatus according to claim 6 is the information processing apparatus according to claim 4, wherein the access control means is an information storage apparatus using a password registered in the information storage apparatus in response to a request from the password release means. Access restriction to the information storage device when it is determined that the unique information read from the information storage device and the unique information stored in the unique information storage device do not match It is characterized by restricting.

  By using the password stored in the password storage means, the restriction on access on the information storage device side is released, and the unique information read from the information storage device and the unique information storage means are stored. The situation where the unique information does not match can be explained as follows. That is, since the password stored in the password storage means is common among a plurality of predetermined information processing devices, there may be a plurality of information processing devices that store the same password as the password registered in the information storage device. There is. However, even if the passwords match, the unique information read from the information storage device does not match the unique information stored in the unique information storage means, so the information storage device connected to this information processing device is It can be determined that the information storage device is not.

  Therefore, in this case, since the information storage device connected to the information processing device is not a legitimate information storage device, it is necessary to restrict access to the information storage device in some form. Pay attention to the fact that the passwords are the same on the device. In other words, if the password is set to be shared as appropriate within the range that protects the confidentiality of the password according to the manufacturer's operation, for example, for each manufacturer, for each model of the information processing apparatus, for each destination, Since the passwords of the processing device and the information storage device are the same, this information storage device is connected to another information processing device having some relationship with the manufacturer, such as a product of the same manufacturer or the same model. It can be determined that it is a storage device.

  Therefore, if the password matches and the unique information does not match between the information processing device and the information storage device, access to all storage areas and data in the information storage device may be prohibited, but unauthorized use It is also possible to prohibit only access to specific storage areas or data that should not be performed. For example, access to copyright-related information such as music data and privacy-related information such as personal information such as address and telephone number is prohibited, but information is shared between devices that have a password shared by the manufacturer. For example, access is permitted to information that does not have a problem with the diversion. By taking such measures, it is possible to provide compatibility of information storage devices to the extent that information is not used illegally between information processing devices whose passwords are shared by the operation of the manufacturer.

  Further, as in the information processing apparatus according to claim 7, the unique information stored in the unique information storage unit is stored in an encrypted state so that the unique information is stored in the unique information storage unit. It is possible to prevent the unique information being easily deciphered by others. Therefore, the confidentiality of information can be further increased. The unique information may be encrypted, for example, when the unique information read by the unique information acquisition means is registered in the unique information storage means, or the unique information may be stored in advance in the unique information storage means by the manufacturer. May be registered in an encrypted state in advance.

  Further, as described in claim 8, a hard disk is an example of the information storage device. The hard disk here refers to a storage device in which a storage medium (hard disk) for storing information and a device (hard disk drive) for reading / writing information from / to the storage medium are integrated. A hard disk is a readable / writable large-capacity storage device that allows high-speed access to information, and is widely used as an information storage device connected to various information processing devices such as personal computers and in-vehicle navigation devices. It is popular.

  Further, as described in claim 9, when the information processing device according to the present invention is configured as a navigation device, navigation processing and other information stored in an information storage device connected to the in-vehicle navigation device It is possible to prevent unauthorized use of information used in the processing.

  The unique information may be a serial number of an information storage device. The serial number referred to here is a number unique to each package attached to commercial software or hardware, and is used for user management on the manufacturer side.

  When the information processing device is configured to acquire the serial number of the information storage device and store it in the unique information storage means of the information processing device, the information processing device has failed and needs to be replaced. If the serial number of the information storage device connected to the information processing device is registered in advance in the new information processing device on the manufacturer side, the information storage device connected to the failed information processing device is directly connected to the new information processing device. Can be used.

  By the way, the computer according to claim 11 is used as the specific information acquisition means, determination means and access control means in the information processing apparatus according to any of claims 1 to 10, or according to claims 2 to 6. The unique information acquisition means, determination means, access control means, password registration determination means, and password release means in the information processing apparatus according to any one of claims 1 to 3, or the unique information acquisition means, determination means in the information processing apparatus according to claim 3 The program for functioning as an access control means, a password registration determination means, a password release means, and a password registration means may be executed by a computer built in the information processing apparatus. Such a program is recorded on a computer-readable recording medium such as a flexible disk, a magneto-optical disk, a CD-ROM, a hard disk, a ROM, or a RAM, and is loaded into a computer for execution as necessary. This function as each of the above-described means can be realized by loading and executing the program.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[Configuration of in-vehicle navigation device 1]
FIG. 1 is a block diagram showing a schematic configuration of an in-vehicle navigation device 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the in-vehicle navigation device 1 of the present embodiment includes a position detector 21 that detects the current position of the vehicle, an operation switch group 22 for inputting various instructions from the user, and an operation switch group. 22, a remote control terminal (hereinafter referred to as “remote control”) 23 a that can input various instructions, a remote control sensor 23 b that inputs a signal from the remote control 23 a, and a hard disk that is a storage device that stores map data and various information 24, a removable disk device 25, a display device 26 for performing various displays such as a map display screen and a TV screen, a voice controller 27, a speaker 28 for outputting voice, a voice recognition device 30, and a voice recognition device. Microphone 31 for inputting sound to 30, nonvolatile memory 32, music playback device 33, and communication device 34 And a control circuit 29.

  The position detector 21 receives a radio wave transmitted from an artificial satellite for GPS via a GPS antenna, detects a position of the vehicle, etc., a GPS receiver 21a, and a gyro that detects the magnitude of rotational motion applied to the vehicle. A scope 21b, a distance sensor 21c for detecting the distance traveled by the vehicle, and a geomagnetic sensor 21d for detecting the traveling direction from geomagnetism are provided. Each of the sensors 21a to 21d has an error having a different property, and is configured to be used while complementing each other. Depending on the accuracy, a part of the sensors described above may be used, or a steering rotation sensor, a wheel sensor of each rolling wheel, or the like may be used.

  The operation switch group 22 is configured by a touch panel, a mechanical key switch, or the like that is configured integrally with the display device 26 and installed on a display screen. Note that the touch panel and the display device 26 are laminated and integrated, and there are various types of touch panels such as a pressure-sensitive method, an electromagnetic induction method, a capacitance method, or a combination thereof. It may be used.

  The hard disk 24 is a storage device in which a disk as a storage medium and a drive as a read / write device are integrated, and is detachably connected to the control circuit 29. The hard disk 24 stores various navigation processing data including so-called map matching data for improving position detection accuracy, map data, route guidance data, and the like, and music recorded via the music playback device 33. Data, image data input via the removable disk device 25, user personal information input at the time of user registration, and the like are also stored. The information stored in the hard disk 24 includes copyrighted information and information related to privacy.

  The hard disk 24 has a so-called “HDD password function” that restricts access from an external device by registering a password in the hard disk 24. The “HDD password function” may use a general password function provided in a known hard disk, or use a password function uniquely provided for the in-vehicle navigation device 1 of the present embodiment. May be. The hard disk 24 in which the password is registered is configured such that the hard disk 24 cannot be accessed unless this password is used. The hard disk 24 stores a serial number, which is a unique number assigned by the manufacturer, in a readable manner.

  The removable disk device 25 is a device for reading / writing information from / to a portable external storage medium. Examples of portable external storage media include memory cards, magnetic disks, and optical disks. Map update data, music data, image data, user personal data, and the like stored in these external storage media can be read by the removable disk device 25, and the read information is recorded on the hard disk 24. . The removable disk device 25 is also used to record information read from the hard disk 24 on an external storage medium and take it outside.

  The display device 26 is a color display device, and there are various displays such as a liquid crystal display and an organic EL display, any of which may be used. The display screen of the display device 26 includes a mark indicating the current location identified from the current position of the vehicle detected by the position detector 21 and the map data input from the hard disk 24, a guide route to the destination, a name, a mark, Additional data such as symbol marks of various facilities can be displayed in an overlapping manner. The display device 26 can also display a reproduction of image data read from the hard disk 24.

  The voice controller 27 outputs various guidance voices and reproduced music via the speaker 28 and controls the voice recognition device 30. The voice recognition device 30 uses the operation switch group 22 or the remote controller 23a for inputting various commands by manual operation, while the user inputs various commands in the same manner by inputting the voice through the microphone 31. It is a device for making it possible.

  The nonvolatile memory 32 is a semiconductor memory that can retain stored contents even when the power is turned off, and an EEPROM or a flash memory is used. The information stored in the nonvolatile memory 32 is configured so that it cannot be referenced from the outside.

  The music playback device 33 is a device that plays back a sound source such as a CD, MD, or radio. Further, music data stored in an external storage medium connected to the hard disk 24 or the removable disk device 25 can be read out by the control circuit 29 and reproduced by the music reproducing device 33. Furthermore, the music data reproduced by the music reproducing device 33 can be subjected to digital processing such as data compression by the control circuit 29 and stored in an external storage medium connected to the hard disk 24 or the removable disk device 25.

  The communication device 34 is used to input / output various information by communicating with various external devices / devices. For example, the communication device 34 is arranged near an FM broadcast signal received via a radio antenna (not shown) or near the road. The radio beacon signal and the optical beacon signal received from the fixed station for the VICS (Road Traffic Information System) service are input. In addition, when a mobile phone or the like is connected, it is possible to send and receive e-mails and connect to the Internet via an electric communication line.

  The control circuit 29 is responsive to inputs from the position detector 21, operation switch group 22, remote controller 23 a, hard disk 24, removable disk device 25, audio controller 27, nonvolatile memory 32, music playback device 33, and communication device 34. Various processes are executed to control the position detector 21, operation switch group 22, remote control sensor 23 b, hard disk 24, removable disk device 25, display device 26, audio controller 27, nonvolatile memory 32, music playback device 33, and communication device 34. To do. The control circuit 29 is configured around a well-known computer comprising a CPU, ROM, RAM, I / O and a bus line connecting these components, and a position detector according to a program stored in the ROM or the like. The current position of the vehicle is calculated as a set of coordinates and advancing direction based on each detection signal from 21, and a map near the current position read via the hard disk 24, an operation of the operation switch group 22, the remote controller 23a, etc. Based on the map display processing for displaying a map or the like of the instructed range on the display device 26 or the point data stored in the hard disk 24, the destination facility is selected according to the operation of the operation switch group 22 or the remote controller 23a, A route guidance process is performed in which route guidance is performed by automatically calculating an optimum route from the current position to the destination.

  As a method for automatically setting an optimum route in this way, a method such as cost calculation by the Dijkstra method is known. The route calculation using this Dijkstra method calculates the route cost (evaluation value for the route) from the current position to each node using the connection information between links including link information for links between nodes. This is a well-known method for setting a route to a destination by connecting a link having a minimum route cost when all the cost calculations up to are completed.

  In addition, since there is a possibility that information related to copyright and privacy is stored in the hard disk 24 of the present embodiment, the hard disk 24 is removed from the in-vehicle navigation device 1 to replicate data or other information processing devices. It is necessary to prevent unauthorized use of stored information by being connected to the Internet. If the hard disk 24 connected to the in-vehicle navigation device 1 is not a regular information storage device in the in-vehicle navigation device 1, the information stored in the hard disk 24 is restricted by restricting access to the hard disk 24. It is necessary to prevent unauthorized use of. Therefore, the control circuit 29 also performs processing related to hard disk authentication for preventing unauthorized use of information stored in the hard disk 24.

  The schematic configuration of the in-vehicle navigation device 1 has been described above. The correspondence between the configuration of the in-vehicle navigation device 1 in the present embodiment and the configuration described in the claims is as follows. That is, the hard disk 24 of the present embodiment corresponds to the information storage device in the claims, and the control circuit 29 serves as the unique information acquisition means, determination means, access control means, password registration determination means, password release means, and password registration means. The nonvolatile memory 32 corresponds to the unique information storage means, the ROM in the nonvolatile memory 32 or the control circuit 29 corresponds to the password storage means, and the serial number of the hard disk 24 corresponds to the unique information.

  Hereinafter, various processes executed by the control circuit 29 when the in-vehicle navigation device 1 of the present embodiment authenticates the hard disk 24 and the operation of the in-vehicle navigation device 1 of the embodiment are shown in the flowcharts of FIGS. Description will be made based on the table and the schematic diagram.

[Hard Disk Authentication Processing]
FIG. 2 is a flowchart showing hard disk authentication processing executed by the control circuit 29.

  First, after the system is started up, the control circuit 29 checks whether or not the hard disk 24 is normally connected. (Step 10, hereinafter referred to simply as S10, and so on). Then, after confirming that the hard disk 24 is normally connected in S10, it is determined whether or not access restriction by a password is applied to the hard disk 24 (S20).

  If it is determined in S20 that the hard disk 24 is not restricted by a password (S20: NO), the control circuit 29 reads the serial number from the hard disk 24 (S30). Then, the read serial number is written into the nonvolatile memory 32 (S40). Subsequently, in order to restrict access on the hard disk side, the password stored in advance in the nonvolatile memory 32 or the ROM in the control circuit 29 is registered in the hard disk 24 (S50), and the process proceeds to S120.

  Thus, in the vehicle-mounted navigation device 1 of the present embodiment, if no password is registered in the hard disk 24, it is determined that the hard disk 24 is a new and unused hard disk. When a new and unused hard disk 24 is connected, the serial number is obtained from the hard disk 24 by the processes of S30 to S50 described above, and the hard disk 24 password is registered. 1 to 1 as a regular hard disk in the navigation apparatus 1 for use.

  The password stored in advance in the non-volatile memory 32 or the ROM in the control circuit 29 is not a password unique to each in-vehicle navigation device 1 but, for example, for each manufacturer, for each model of the navigation device 1, for each destination. In this way, the password is shared as appropriate within a range in which the confidentiality of the password is protected according to the operation of the manufacturer.

  On the other hand, if it is determined in S20 that the hard disk 24 is restricted by a password (S20: YES), the control circuit 29 uses the password stored in advance in the nonvolatile memory 32 or the ROM in the control circuit 29. The hard disk 24 is requested to release the access restriction (S60), and then it is determined whether or not the access restriction on the hard disk 24 side has been successfully released by this password (S70). Here, if it is determined that the access restriction on the hard disk 24 side cannot be removed by the password stored in advance in the nonvolatile memory 32 or the ROM in the control circuit 29 (S70: NO), that is, if the passwords do not match, It can be determined that the hard disk 24 is not a regular hard disk in the in-vehicle navigation device 1. In this case, the hard disk 24 restricts access from the control circuit 29 because the passwords do not match, so the control circuit 29 shifts to the “operation restriction mode 1” process in which the hard disk 24 is not used for the subsequent processes. (S80).

  If it is determined in S70 that the access restriction on the hard disk 24 side has been successfully canceled by the password stored in advance in the nonvolatile memory 32 or the ROM in the control circuit 29 (S70: YES), that is, the passwords match. In this case, the control circuit 29 reads the serial number from the hard disk 24 (S90), and then reads the serial number stored in the nonvolatile memory 32 (S100). Then, it is determined whether or not the serial number read from the hard disk 24 matches the serial number read from the nonvolatile memory 32 (S110). If it is determined that the serial number read from the hard disk 24 matches the serial number read from the nonvolatile memory 32 (S110: YES), the hard disk 24 is a regular hard disk in the in-vehicle navigation device 1. I can judge. In this case, the control circuit 29 shifts to the “normal operation mode” process in which the access to the hard disk 24 is not restricted in the subsequent processes (S120).

  On the other hand, if it is determined in S110 that the serial number read from the hard disk 24 and the serial number read from the nonvolatile memory 32 do not match (S110: NO), the hard disk 24 is registered in the in-vehicle navigation device 1 It can be determined that it is not a hard disk. However, since the passwords match, it can be determined that the hard disk 24 is a hard disk connected to the in-vehicle navigation device 1 and another in-vehicle navigation device having some relationship with the manufacturer. In this case, the control circuit 29 prohibits access to all storage areas and data of the hard disk 24 in the subsequent processes, or prohibits only access to specific storage areas or data that should not be used illegally. The process proceeds to the process of “restriction mode 2” (S130).

  In the “operation restriction mode 2”, access restriction is performed considering that the hard disk 24 is a hard disk connected to the in-vehicle navigation device 1 and another in-vehicle navigation device having some relationship with the manufacturer. In other words, if there is a relationship between related devices, access to information that can be diverted is permitted, access to information that should not be diverted regarding copyright and privacy is prohibited, etc. Access restrictions.

  In the “operation restriction mode 2”, in order to distinguish between accessible data and inaccessible data, whether or not access is possible in the storage area in the hard disk 24 for each partition, each directory, each file, etc. It is good to set. Specifically, a table as shown in FIG. 3 may be stored in the nonvolatile memory 32 or the ROM to determine whether or not the hard disk 24 can be accessed.

  In the table in Figure 3, the d: \ MUSIC directory and the d: \ HOME \ USER directory are prohibited from being read, written, or executed, and the C: \ partition and the d: \ PROGRAM \ test.exe file are Whether only read and execution are permitted, read permission, write permission and execution permission are set for each unit area such as partition, directory or file or data. Therefore, a directory in which data relating to copyright such as music data recorded from a CD, a user's address / telephone number, and data relating to privacy such as image data photographed by a digital camera are stored, read, written and executed. Can also be prevented from being illegally used by setting the information to be prohibited. On the other hand, for data and programs that are considered to be safe even if they are related to devices related to the manufacturer, by setting to allow only reading and execution, between the devices related to the manufacturer The hard disk 24 can be made compatible so long as information is not used illegally.

[Operation in case of failure]
In the vehicle-mounted navigation device 1 according to the present embodiment, an operation related to repair at the time of failure as shown in FIG.

  FIG. 4A shows an operation in the case of replacing the hard disk A (serial number: A) with a new hard disk F (serial number: F) because the hard disk A (serial number: A) has failed in the in-vehicle navigation device 1 of the present embodiment. .

  First, the failed hard disk A is removed from the main body of the in-vehicle navigation device 1. The serial number: A of the hard disk A is stored in the nonvolatile memory 32 of the in-vehicle navigation device 1. Next, a new hard disk F is attached to the main body of the in-vehicle navigation device 1. Since the hard disk F is new, a password for restricting access has not yet been set. Therefore, it is in a state where access is possible regardless of which in-vehicle navigation device is connected. When the power is turned on after the hard disk F is connected to the main body of the in-vehicle navigation device 1, the in-vehicle navigation device 1 recognizes the hard disk F as a new hard disk, reads the serial number F from the hard disk F, The serial number A stored in the nonvolatile memory 32 is updated to the serial number F of the new hard disk F. Then, the access to the hard disk F is restricted by registering the password in the hard disk F.

  As described above, when the hard disk 24 is replaced, the in-vehicle navigation device 1 of the present embodiment automatically recognizes that the connected hard disk 24 is new and automatically restricts access to the new hard disk 24. Can be set to

  FIG. 4B shows the operation when the vehicle navigation device 1 of this embodiment is replaced with a new vehicle navigation device 1 because the vehicle navigation device 1 main body (other than the hard disk A) has failed. Show.

  First, the hard disk A is removed from the in-vehicle navigation device 1 that has failed in the dealer. Next, the serial number A of the removed hard disk A is read. The serial number can be read by a command defined in a hard disk standard (such as ATA). Normally, the serial number is written on the outside of the hard disk case with characters and barcodes. It can be read by a dedicated device. The dealer notifies the manufacturer of the read serial number: A together with a request for sending a substitute for the main body of the in-vehicle navigation device 1. The notification method may be FAX or may be automatically notified by a dedicated device.

  After receiving the notification from the dealer, the manufacturer sets the serial number: A notified from the dealer to the nonvolatile memory 32 in the main body of the new in-vehicle navigation device 1 having the same password as the faulty in-vehicle navigation device 1. sign up. The serial number registered in the nonvolatile memory 32 by the manufacturer may be registered in an encrypted state. Next, the manufacturer sends a new in-vehicle navigation device 1 in which the serial number A is registered to the dealer.

  In the dealer, the hard disk A removed from the main body of the failed in-vehicle navigation device 1 is attached to the main body of the new in-vehicle navigation device 1 sent from the manufacturer. Since the new in-vehicle navigation device 1 and the hard disk A have the same password and serial number, the hard disk A is recognized as an authorized hard disk. Therefore, the hard disk 24 connected to the failed in-vehicle navigation device 1 can be used again with the new in-vehicle navigation device 1 as it is.

[effect]
According to the vehicle-mounted navigation device 1 according to the present embodiment, the following effects can be obtained.

  (1) Since the in-vehicle navigation device 1 and the regular hard disk 24 are associated one-to-one by acquiring the serial number stored in the hard disk 24, a unique password is preset for each in-vehicle navigation device 1. There is no need. Therefore, in the manufacturing process of the in-vehicle navigation device 1 and the like, it is possible to save labor for registering a unique password for each in-vehicle navigation device 1 before connecting the hard disk 24.

  (2) By using a password for canceling the access restriction on the hard disk 24 side as a common password among a plurality of in-vehicle navigation devices 1, it is possible to register a unique password for each in-vehicle navigation device 1. Such labor can be saved. Furthermore, if a password is made common for each manufacturer or model, for example, if the in-vehicle navigation device 1 main body breaks down and needs to be replaced, a new in-vehicle device having the same password as the failed in-vehicle navigation device 1 main body If the main body of the navigation device 1 is prepared, the password of the hard disk 24 connected to the failed in-vehicle navigation device 1 matches the password of the new in-vehicle navigation device 1. Therefore, only by registering the serial number of the hard disk 24 in the new in-vehicle navigation device 1 body on the manufacturer side, the hard disk 24 connected to the failed in-vehicle navigation device 1 body is connected to the new in-vehicle navigation device 1 body. Can be used.

  (3) Even when a new hard disk 24 for which access restriction by password is not set is connected to the in-vehicle navigation device 1, access restriction to the hard disk 24 is automatically set by password and serial number. By doing so, unauthorized use of information stored in the hard disk 24 can be prevented.

  (4) If the password on the hard disk 24 side matches the password on the in-vehicle navigation device 1 main body and the serial number does not match, access to some storage areas or information is restricted and access to other storage areas or information Can be partially restricted to allow access. For example, access to copyright-related information such as music data and privacy-related information such as personal information such as address and telephone number is prohibited, but information is shared between devices that have a password shared by the manufacturer. It is possible to take measures such as permitting access to information that does not have a problem as long as it is diverted. By taking such measures, the compatibility of the hard disk 24 can be provided to the extent that information is not used illegally between the in-vehicle navigation devices 1 whose passwords are shared by the operation of the manufacturer.

  Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above embodiments, and can be implemented in various modes as long as they belong to the technical scope of the present invention. .

  For example, embodiments of the information processing apparatus include embodiments such as a personal computer, an HDD recorder, an audio apparatus, and a portable information terminal in addition to the above-described in-vehicle navigation apparatus. As an embodiment of the information storage device, in addition to the above-described hard disk, a USB memory, a memory card or other storage medium having a storage circuit and a control circuit can be cited.

1 is a block diagram illustrating a schematic configuration of an in-vehicle navigation device 1 according to an embodiment of the present invention. 4 is a flowchart showing hard disk authentication processing executed by a control circuit 29. 4 is a table for setting a range of accessibility to the hard disk 24; It is a schematic diagram which shows the operation | use method regarding the repair at the time of failure of the vehicle-mounted navigation apparatus 1 of embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle-mounted navigation apparatus, 21 ... Position detector, 21a ... GPS receiver, 21b ... Gyroscope, 21c ... Distance sensor, 21d ... Geomagnetic sensor, 22 ... Operation switch group, 23a ... Remote control, 23b ... Remote control sensor, 24 DESCRIPTION OF SYMBOLS ... Hard disk, 25 ... Removable disk device, 26 ... Display device, 27 ... Voice controller, 28 ... Speaker, 29 ... Control circuit, 30 ... Voice recognition device, 31 ... Microphone, 32 ... Non-volatile memory, 33 ... Music playback device, 34 …Communication device

Claims (11)

In the information processing apparatus to which the information storage device including the unique information given to each information storage device is identifiable,
Unique information storage means;
Unique information acquisition means for reading the unique information from the information storage device and registering it in the unique information storage means;
When the unique information is read from the information storage device in a situation where the unique information is stored in the unique information storage means, the read unique information matches the unique information stored in the unique information storage means. Determining means for determining whether to do;
An information processing apparatus comprising: an access control unit that restricts access to the information storage device when the determination unit determines that they do not match. The information processing apparatus according to claim 1,
The information storage device has a function of restricting access from an information processing device by registering a password,
The information processing apparatus includes:
Password storage means for storing a predetermined password; and
Password registration determination means for determining whether or not the password is registered in the information storage device;
When the password registration determination unit determines that a password is registered in the information storage device, the access restriction by the information storage device is released using the predetermined password stored in the password storage unit. An information processing apparatus comprising: a password canceling unit that requests the information storage device. The information processing apparatus according to claim 2,
Password registration means,
When the password registration determination unit determines that a password is not registered in the information storage device, the unique information acquisition unit reads the unique information included in the information storage device and stores the unique information in the unique information storage unit. An information processing apparatus that registers, and the password registration unit registers a password in the information storage device based on the predetermined password stored in the password storage unit. The information processing apparatus according to claim 2 or 3,
The information processing apparatus characterized in that the predetermined password stored in the password storage means is a password common to a plurality of predetermined information processing apparatuses. The information processing apparatus according to any one of claims 2 to 4,
The access control means releases the restriction of access on the information storage device side by the password registered in the information storage device in response to a request from the password release means, and the determination means removes the access from the information storage device. An information processing apparatus, wherein when it is determined that the read unique information matches the unique information stored in the unique information storage unit, access to the information storage device is not restricted. The information processing apparatus according to claim 4,
The access control means releases the restriction of access on the information storage device side by the password registered in the information storage device in response to a request from the password release means, and the determination means removes the access from the information storage device. An information processing apparatus that restricts access to the information storage device when it is determined that the read unique information does not match the unique information stored in the unique information storage means. The information processing apparatus according to any one of claims 1 to 6,
The unique information stored in the unique information storage means is encrypted information. The information processing apparatus according to any one of claims 1 to 7,
The information storage device is a hard disk. The information processing apparatus according to claim 1 is configured as an in-vehicle navigation apparatus. The information processing apparatus according to any one of claims 1 to 9,
The information processing apparatus, wherein the unique information is a serial number of the information storage device. A computer as the specific information acquisition means, determination means, and access control means in the information processing apparatus according to any one of claims 1 to 10,
Alternatively, as the unique information acquisition means, determination means, access control means, password registration determination means, and password release means in the information processing apparatus according to any one of claims 2 to 6,
A program for causing the information processing apparatus according to claim 3 to function as unique information acquisition means, determination means, access control means, password registration determination means, password release means, and password registration means.

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