JP2002176492A - Terminal user authentication system by mobile phone, method and recording medium for recording user authentication program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal user authentication system that uses a mobile phone and prevents illegal use by a 3rd party. SOLUTION: The terminal user authentication system has a terminal 20 that is provided with a registration telephone number storage section 22 that registers a telephone number of a mobile phone 10 possessed by a legal user of the terminal 20, a connection detection section 21 that detects whether or not the mobile phone 10 is connected to the terminal 20, a telephone number authentication section 23 that the connection detection section 21 informs about the detection result and collates a telephone number acquired from a user telephone number storage section 11 storing the telephone number of the connected mobile phone 10 with a telephone number registered in a registered telephone number storage section 22, and a log-on screen saver control section 24 that logs on the terminal 20 to make operations of the terminal 20 available when receiving a notice of the coincident collation from the telephone number authentication section 23 at application of power of the terminal 20 or starts a screen saver to make operations of the terminal 20 disabled when receiving a notice of no connection of the mobile phone 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal user authentication system and method for determining whether a terminal device such as a personal computer can be used, and a recording medium storing a user authentication program, and more particularly to a portable medium connected to the terminal device. The present invention relates to a terminal user authentication method and method using a mobile phone that performs authentication by a telephone, and a recording medium that stores a user authentication program.

[0002]

2. Description of the Related Art Generally, when a terminal device such as a personal computer is used, it is authenticated whether a user who uses the terminal device is a user who is permitted to use the terminal device. To prevent unauthorized use.

As this terminal user authentication method, for example, an authentication method that can be used when a user inputs a password and the password is the same as a password registered in advance in the terminal device is widely used. Used. In addition, instead of a password, a user is authenticated using a fingerprint or a card. (The above is the first conventional technology).

As an example of user authentication using a telephone number, there is, for example, "Access authentication method, connection control device, and communication system" disclosed in Japanese Patent Application Laid-Open No. 11-27750. According to the invention described in this publication, when a mobile terminal accesses a server via a mobile phone or a public line, a telephone number of the mobile phone is acquired by a source telephone number notification service or the like, and the telephone number and the server are transmitted to the server. A server / server that authenticates against a pre-registered telephone number, disconnects the public line if authentication fails, and provides service to a mobile terminal connected to the mobile phone when authenticated.
A technique related to authentication between clients (mobile terminals) is described. (The above is the second conventional technique).

[0005]

However, the above-described first method
In the related art, there is a problem that a user is burdened with inputting a password or that a terminal device is illegally used if the password is known to a third party.

[0006] Further, after the terminal device is turned on, a password or a fingerprint or the like is input and once authenticated, the terminal device can be used. May be used. As a countermeasure against such unauthorized use, a screen saver is activated after a certain period of time after leaving the seat (to be precise, after a state where there is no input to the terminal device for a certain period of time), and when the user returns to the seat, In addition, there is a screen saver lock function for performing authentication by inputting a password or a fingerprint again to return the display of the terminal device to the original state. Therefore, in the terminal device having the screen saver lock function, it can be said that unauthorized use by a third party when the user leaves the seat can be prevented to some extent. However, even in this case, there is a problem that unauthorized use by a third party is possible until the screen saver is activated after the user leaves the seat.

As another measure for preventing unauthorized use, there is a method of logging off when a user leaves a seat, leaving the seat, and inputting a password or fingerprint again when returning to the seat to log on again. However, in this case, when the user logs on again, the initial screen of the application is displayed, and there is a problem that the screen cannot be directly returned to the screen operated before leaving the seat.

In the above-mentioned second conventional technique, authentication at the time of server access from a client (portable terminal) via a public line is performed by using a telephone number of a portable telephone transmitted to the public line. It does not relate to an authentication means for determining whether or not the client (portable terminal) itself can be used.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal user authentication method and method using a portable telephone and a recording medium on which a user authentication program is recorded, which solves the above problems.

[0010]

According to a first aspect of the present invention, a terminal user authentication system using a mobile phone detects whether or not the mobile phone is connected to a peripheral device connection interface unit provided in the terminal device and a telephone number. And means for disabling the use of the terminal device when the mobile phone is not connected, or when the phone number is not that of the authorized user of the terminal device even if it is connected, Means for enabling use of the terminal device when the mobile phone is connected and the telephone number is that of a mobile phone of an authorized user of the terminal device.

According to a second aspect of the present invention, there is provided a terminal user authentication method using a portable telephone, wherein a telephone number of a portable telephone owned by an authorized user of the terminal is registered in the terminal in advance.
Means for detecting whether a mobile phone is connected to the terminal device, obtaining a telephone number of the connected mobile phone, and means for comparing the obtained telephone number with the registered telephone number; Means for controlling logon and a screen saver of the terminal device according to the result of the comparing means.

According to a third terminal user authentication system using a portable telephone of the present invention, a portable telephone provided with a user telephone number storage unit in which the telephone number of the portable telephone is stored in advance, and a portable telephone owned by an authorized user of the terminal device. Register the telephone number of the telephone in advance,
A registered telephone number storage unit that stores, a connection detection unit that detects whether the mobile phone is connected to the terminal device,
The detection result is notified from the connection detection unit, the telephone number of the connected mobile phone is obtained from the user telephone number storage unit, and the obtained telephone number is compared with the telephone number registered in the registered telephone number storage unit. A telephone number authentication unit to perform, and when the user turns on the terminal device, and receives a notification of a match from the telephone number authentication unit as a result of the collation, logs on the terminal device to perform an operation. And a log-on screen saver control unit that activates a screen saver and disables operation when a notification that the mobile phone is not connected is received from the telephone number authentication unit.

In a fourth aspect of the present invention, a terminal user authentication method using a mobile phone is the terminal user authentication method using a third mobile phone according to the third aspect of the present invention, wherein the logon / screen saver control unit controls the terminal device after the logon. When the connected mobile phone is removed, a screen saver is activated to disable the operation of the terminal device, and when the mobile phone is connected to the terminal device again, a call from the telephone number authentication unit is made. If the numbers are matched and the numbers match, the screen saver is released to allow operation.

According to a fifth aspect of the present invention, there is provided a terminal user authentication system using a mobile phone, comprising: means for registering in advance the telephone number of the mobile phone owned by an authorized user of the terminal device and the password unique to the user in the terminal device; Means for detecting whether a telephone is connected to the terminal device, acquiring the telephone number of the connected cellular phone, acquiring the password input from the cellular phone, and registering the acquired telephone number and password. And a means for controlling logon and a screen saver of the terminal device according to the results of the detecting means and the comparing means.

According to a sixth aspect of the present invention, there is provided a terminal user authentication system using a mobile telephone, comprising: a mobile telephone having a user telephone number storage unit in which the telephone number of the terminal is stored in advance; and a password input unit for inputting a password. A registered telephone number / password storage unit that pre-registers and stores the telephone number of the mobile phone owned by the authorized user of the terminal device and the password unique to the user, and determines whether the mobile phone is connected to the terminal device. A connection detection unit to be detected, and a detection result is notified from the connection detection unit, a telephone number of the connected mobile phone is obtained, and a password input from the mobile phone is obtained, and the obtained telephone number and password are obtained. A telephone number / password authentication unit for collating with a registered telephone number and password, and a user turning on the terminal device In the case where a notification of a match is received from the telephone number / password authentication unit as a result of the collation, the terminal device is logged on and the operation is permitted, and the mobile phone is connected from the telephone number / password authentication unit. A log-on screen saver control unit that activates a screen saver and disables operation when a notification that the screen saver has not been received is received.

In a seventh aspect of the present invention, the terminal user authentication method using the mobile phone is the terminal user authentication method using the sixth mobile phone according to the present invention. When the connected mobile phone is removed, a screen saver is activated to disable the operation of the terminal device, and when the mobile phone is connected to the terminal device again, the telephone number / password authentication unit Receiving the collation result of the telephone number and the password, if they match, the screen saver is released to enable the operation.

According to an eighth aspect of the present invention, there is provided a terminal user authentication system using a mobile phone according to any one of the first to seventh mobile phones of the present invention. The data transfer uses a serial transfer method.

According to a ninth terminal user authentication system of the present invention, in the terminal user authentication system of any of the first to eighth mobile phones of the present invention, the mobile phone is connected to the terminal device by a cable. It is characterized by being performed.

A tenth user authentication method using a mobile phone according to the present invention is the terminal user authentication method using one of the first to eighth mobile phones according to the present invention, wherein the mobile phone uses the infrared or wireless communication to transmit the terminal device. Characterized by being connected to

In a first method for authenticating a terminal user using a mobile phone according to the present invention, a first step of registering in advance the telephone number of a mobile phone owned by an authorized user of the terminal device in the terminal device; A second step of detecting whether the mobile phone is connected to the device, a third step of obtaining a telephone number of the connected mobile phone, and a fourth step of comparing the obtained telephone number with the registered telephone number. And if the mobile phone is not connected in the second step, or if the telephone number is not the mobile phone of the authorized user of the terminal device in the fourth step, use of the terminal device A fifth step of disabling the telephone number, and in the fourth step, when the telephone number is that of the mobile phone of the authorized user of the terminal device, The use of end device and a sixth step of the variable.

[0021] In a second terminal user authentication method using a portable telephone according to the present invention, a first step of registering in advance the telephone number of the portable telephone possessed by an authorized user of the terminal device and the user-specific password in the terminal device. A second step of detecting whether a mobile phone is connected to the terminal device, and a third step of obtaining a telephone number of the connected mobile phone and obtaining a password input from the mobile phone. And a fourth step of comparing the acquired telephone number and password with the registered telephone number and password; and if the mobile phone is not connected in the second step, or the telephone number in the fourth step Or, if the password is not for the authorized user of the terminal device, the terminal device cannot be used. To have the steps of the fifth, and the sixth step of the fourth telephone number or a password in step a variable use of the terminal device when was legitimate user of the terminal device.

A first recording medium according to the present invention is a connection detecting means for detecting whether or not a mobile phone is connected to its own device. The detection result is notified from the connection detecting means, and the telephone number of the connected mobile phone is entered. A telephone number authentication unit for acquiring and comparing the acquired telephone number with a telephone number of a registered regular user of the own apparatus, and when the user turns on the power of the own apparatus, the telephone number authentication is performed as a result of the comparison. Means for logging on to the own device when receiving a notice of a match from the means, permitting operation, and activating a screen saver for receiving notification from the telephone number authentication means that the mobile phone is not connected. If the mobile phone connected to the own device is removed after the logon, the screen saver is activated to disable the operation of the own device, and the If the mobile phone is connected to,
A user authentication program that causes a computer to function as a logon / screen saver control unit that releases a screen saver and enables an operation if the result of the verification of the telephone number received from the telephone number authentication unit is identical is recorded. .

The second recording medium of the present invention is a connection detecting means for detecting whether or not the portable telephone is connected to its own device. The detection result is notified from the connection detecting means, and the telephone number of the connected portable telephone is entered. A telephone number / password authentication unit that acquires and obtains the password input from the mobile phone, and compares the acquired telephone number and password with the telephone number and password of a regular user of the terminal device registered in advance. When the power of the own device is turned on, if a result of the collation is received from the telephone number / password authentication unit to notify that the device matches, the own device is logged on and the operation is enabled, and the telephone number / password authentication is performed. Activates the screen saver and disables the operation when a notification that the mobile phone is not connected is received from the means. If the mobile phone connected to the own device is removed after the logon, the screen saver is activated to disable the operation of the own device. If the mobile phone is connected to the own device again, the telephone number is used. -A log-on function that releases the screen saver and permits operation if the results of the verification of the telephone number and password from the password authentication means match, and records a user authentication program that causes the computer to function as screen saver control means. I do.

[0024]

Embodiment of the embodiment of the present invention will be described with reference to the drawings in detail.

FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention, in which a portable telephone 10, a terminal device 20, and a cable with a connector for connecting the portable telephone 10 and the terminal device 20 are provided. 30 and an I / F (interface unit) 40.

The mobile phone 10 is connected to, for example, a connector for connecting peripheral devices provided on the terminal device 20 by a cable 30. Further, the mobile phone 10 includes a user phone number storage unit 11 that stores a unique phone number assigned to the phone, and has a function of outputting the unique phone number to the I / F 40 with the terminal device 20. Have. The I / F 40 is a control interface unit of a serial transfer method such as RS-232C or USB (Universal Serial Bus). Note that RS-232C and U
Since SB and the like are well-known standards, description thereof is omitted here.

The terminal device 20 is an information processing device such as a personal computer having a screen saver function, and includes a connection detecting unit 21, a registered telephone number storing unit 22,
A telephone number authentication unit 23 and a logon / screen saver control unit 24 are provided.

The connection detecting section 21 detects whether or not the mobile phone 10 is connected to the terminal device 20 and notifies the telephone number authenticating section 23 of the result. Registered telephone number storage 2
2, the telephone number of the mobile phone of the user who is permitted to use the terminal device 20 is registered in advance.

The telephone number authentication unit 23 has a storage unit (not shown) for storing and updating the current connection state of the mobile phone 10 when the connection detection unit 21 changes from unconnected to connected. Then, a telephone number is obtained from the user telephone number storage unit 11 of the connected mobile phone 10, and it is checked whether or not this telephone number is registered in the registered telephone number storage unit 22. Notify 24. In addition, the telephone number authentication unit 23
When the notification from the connection detecting unit 21 changes from the connection to the non-connection, the fact is notified to the logon / screen saver control unit 2.
Notify 4. Further, the telephone number authentication unit 23 notifies the logon / screen saver control unit 24 of the connection state and the telephone number of the mobile phone 10 when the power of the terminal device 20 is turned on.

Logon / screen saver control unit 24
Is the current operation state of the terminal device 20 [unlogged-on state 51, normal operation state 52, screen saver states (A) 53 to (D) shown in FIG.
56 state] is stored, and in each operation state, a process corresponding to a notification from the telephone number authentication unit 23, a logoff operation of the user, and the like is stored. 20 to control the operation state.

Next, the operation of the first embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a state transition diagram showing the operation of the embodiment of the present invention.

First, the user turns on the power of the terminal device 20. At this point, the user has not yet logged on to the OS (operating system) of the terminal device 20 and transits to the non-logon state 51 in FIG. 2 (step S in FIG. 2).
1).

Here, the connection detecting unit 21 of the terminal device 20
Checks the connection state of the mobile phone 10 to the terminal device 20 and notifies the telephone number authentication unit 23 of the result of this check. When receiving the notification of the non-connection, the telephone number authentication unit 23 notifies the logon / screen saver control unit 2 of the fact.
Notify 4. If the mobile phone 10 is connected, the telephone number authentication unit 23 stores the user telephone number storage unit 1 of the mobile phone 10.
Then, the telephone number is obtained from No. 1 and the telephone number is checked whether it is registered in the registered telephone number storage unit 22, and the check result is notified to the logon / screen saver control unit 24.

Logon / screen saver control unit 24
Is the telephone number authentication unit 23 in the non-logon state 51.
When the notification of disconnection is received from, the screen saver is started and transits to the screen saver state (A) 53 (step S2).

If the mobile telephone 10 is connected but has a telephone number different from the telephone number registered in the registered telephone number storage unit 22 in advance, the logon / screen saver control unit 24 Then, the screen saver is started and transits to the screen saver state (B) 54 (step S3).

On the other hand, if the portable telephone 10 having the same telephone number as the telephone number registered in advance in the registered telephone number storage unit 22 is notified, the logon / screen saver control unit 24 sends a message to the OS. Log on automatically,
Transition to the normal operation state 52 (step S
4).

In the normal operation state 52, when the user temporarily disconnects the mobile phone 10 by leaving the seat, the notification from the connection detection unit 21 to the telephone number authentication unit 23 changes from connected to unconnected, and The authentication unit 23 notifies the logon / screen saver control unit 24 of the fact. The logon / screen saver control unit 24 immediately starts the screen saver and sets the screen saver state (C).
The transition to 55 makes the terminal device 20 inoperable (step S5).

Thereafter, the user returns to the seat and the mobile phone 10
Is connected, the connection detection unit 21 to the telephone number authentication unit 23
Changes from unconnected to connected, the telephone number is authenticated by the telephone number authentication unit 23, and if it matches the telephone number registered in the registered telephone number storage unit 22, the
The screen saver control unit 24 immediately turns off the screen saver and returns to the normal operation state 52 again (step S6).

In the screen saver state (C) 55, when the user logs off, the state transits to the screen saver state (A) 53 and waits for the portable telephone 10 to be connected again (step S7).

In the screen saver state (A) 53, if the user connects the mobile phone 10, the notification from the connection detection unit 21 to the telephone number authentication unit 23 changes from unconnected to connected, and the telephone number authentication unit 23 If the number is authenticated and matches the telephone number registered in the registered telephone number storage unit 22, the logon / screen saver control unit 2
4 immediately turns off the screen saver, automatically logs on to the OS, and transits to the normal operation state 52 (step S8).

In the normal operation state 52, when the user logs off, the screen saver is started,
The state transits to the screen saver state (B) 54 (step S9). Thereafter, when the user removes the mobile phone 10, the state transits to the screen saver state (A) 53 (step S1).
0), when the mobile phone 10 is connected again in this state, the normal operation state 52 is again performed by the operation of step S8.
Return to.

In the normal operation state 52 of the terminal device 20, if there is no input from the user for a predetermined period of time or more, the screen saver is started by the logon / screen saver control unit 24, and the state transits to the screen saver state (D) 56. (Step S11).
Thereafter, to return to the normal operation state 52,
When the user removes the mobile phone 10 once, the screen transitions to the screen saver state (C) 55 under the control of the logon / screen saver control unit 24 (step S12).
Further, the user reconnects the mobile phone 10 and proceeds to step S
The operation is returned by the operation 6.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a block diagram showing a configuration of the second exemplary embodiment of the present invention.

This embodiment is different from the above-described first embodiment in that the user is required to input a password from the mobile phone 10 at the time of user authentication, and both the telephone number of the mobile phone 10 and the input password are input. Is checked to see if it matches the one registered in advance.
As described above, the security can be further enhanced by using the telephone number and the password of the mobile phone 10 together. In other words, even if the mobile phone 10 is illegally used by a third party, the security can be double-guarded by a password.

Referring to FIG. 3, in the terminal device 20A, the registered telephone number storage unit 22 becomes a registered telephone number / password storage unit 22A in comparison with the first embodiment of FIG. Are also registered in advance. 1 in that the telephone number authentication unit 23 in FIG. 1 is replaced by a telephone number / password authentication unit 23A, and authentication is performed using a telephone number and a password. The mobile phone 10 also includes, in addition to the user telephone number storage unit 11, a password input unit 12 for a user to input a password, and a display unit 13 for displaying a password input request from the terminal device 20A during authentication.
As the password input unit 12, for example, a telephone number button is used to recite a PIN (Personal Identification Number).
Used as an input device.

In the state transition diagram of FIG. 2, "connection and match" and "connection and mismatch" in the first embodiment indicate that "the portable telephone 10 is connected and the telephone number matches or Used to mean "disagreement,
In the second embodiment, the meaning is replaced with the meaning of "the mobile phone 10 is connected and the telephone number and the password match or mismatch."

In operation, when the connection detecting unit 21 notifies that the mobile phone 10 has changed from unconnected to connected, the telephone number authentication unit 23A sends a password input request to the mobile phone and sends it to the display unit 13. indicate. The user inputs a password from the password input unit 12. The telephone number authentication unit 23A checks whether the input password and the telephone number obtained from the user telephone number storage unit 11 match those registered in advance in the registered telephone number / password storage unit 22A. The result of the check is sent to the logon / screen saver control unit 24, and the subsequent control is performed.

As described above, in the second embodiment, the user authentication is performed by using both the telephone number of the mobile phone and the password. However, the fingerprint and the card information are used instead of the password, and the mobile phone is authenticated. User authentication may be performed by using both a telephone number and a fingerprint or a combination of a telephone number of a mobile phone and card information. In this case, the mobile phone is provided with a fingerprint sensor and a card reading unit, and the terminal device also stores the fingerprint and card information of the authorized user in advance in the registered telephone number storage unit that stores the telephone number registered in advance. Shall be kept. In the operation, it is assumed that fingerprint input and card information input are performed instead of the password input in the second embodiment. Also in this case, as in the second embodiment, it is possible to further enhance security as compared with the authentication using the telephone number in the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIG.

FIG. 4 is a block diagram showing the configuration of the third embodiment of the present invention, which comprises a computer 60 and a recording medium 70. The configuration of the computer 60 is as follows.
1. Terminal device 2 described in the first embodiment of the present invention in FIG.
Basically the same as 0. The recording medium 70 records a user authentication program. The recording medium 70 may be a magnetic disk, an optical recording disk, a semiconductor memory, or another recording medium. The user authentication program is read from the recording medium 70 into the computer 60, and controls the same operation as in the first embodiment of the present invention.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

FIG. 5 is a block diagram showing the configuration of the fourth embodiment of the present invention, which comprises a computer 80 and a recording medium 90. The configuration of the computer 80 is as follows.
The terminal device 2 described in the second embodiment of the present invention in FIG.
It is basically the same as 0A. The recording medium 90 records a user authentication program. The recording medium 90 may be a magnetic disk, an optical recording disk, a semiconductor memory, or another recording medium. The user authentication program is read from the recording medium 90 into the computer 80, and controls the same operation as in the second embodiment of the present invention.

In the first to fourth embodiments described above, a cable such as RS-232C or USB is assumed as the connection means between the terminal device and the portable telephone. It is also possible to apply a proximity wireless system such as Bluetooth. As a result, it is possible to save the user's trouble when connecting and disconnecting the mobile phone.

In the first to fourth embodiments described above, the terminal device 20 or 20A is provided with the constituent means of the present invention. However, the constituent means of the present invention is replaced with the terminal device 20 or 20A. , 20A may be provided as a separate device, and this separate device may be connected to a terminal device such as a personal computer.

In the first to fourth embodiments described above, the portable telephone is connected to the terminal device. However, a PHS (Personal) is used instead of the portable telephone.
Handyphone System) may be used.

[0056]

According to the present invention, the terminal device can be correctly operated only when the authorized user is connected to the registered mobile phone, thereby preventing unauthorized use of the terminal device by a third party. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a state transition diagram showing an operation of the exemplary embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a second exemplary embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a third exemplary embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a fourth exemplary embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 mobile phone 11 user telephone number storage unit 12 password input unit 13 display unit 20 terminal device 20A terminal device 21 connection detection unit 22 registered telephone number storage unit 22A registered telephone number / password storage unit 23 telephone number authentication unit 23A telephone number / password Authentication unit 24 Logon / screen saver control unit 30 Cable 40 I / F (interface unit) 51 Non-logon state 52 Normal operation state 53 Screen saver state (A) 54 Screen saver state (B) 55 Screen saver state (C) 56 Screen saver state (D) 60 computer 70 recording medium 80 computer 90 recording medium

Claims (14)

[Claims] 1. A means for detecting whether or not a mobile phone is connected to a peripheral device connection interface unit provided in a terminal device and a telephone number, and means for detecting whether or not the mobile phone is connected or not. Means for disabling the use of the terminal device when the telephone number is not that of the mobile phone of the authorized user of the terminal device; and a mobile phone connected to the mobile device and the telephone number of the authorized user of the terminal device. Means for permitting use of the terminal device when the terminal device is a mobile phone of the type described above. 2. A means for registering in advance a telephone number of a mobile phone owned by an authorized user of the terminal device in said terminal device;
Means for detecting whether a mobile phone is connected to the terminal device, obtaining a telephone number of the connected mobile phone, and means for comparing the obtained telephone number with the registered telephone number; And a means for controlling log-on and a screen saver of the terminal device according to the result of the collating means. 3. A mobile phone provided with a user telephone number storage unit in which a telephone number of the terminal itself is stored in advance, and a telephone number of a mobile phone owned by an authorized user of the terminal device are registered in advance.
A stored telephone number storage unit that stores a connection detection unit that detects whether a mobile phone is connected to the terminal device. A detection result is notified from the connection detection unit, and a telephone number of the connected mobile phone is stored. A telephone number authentication unit that acquires from the user telephone number storage unit and compares the acquired telephone number with a telephone number registered in the registered telephone number storage unit, and when a user turns on the terminal device, Upon receiving a notification of a match from the telephone number authentication unit as a result of the collation, the terminal device is logged on and operation is permitted, and a notification that the mobile phone is not connected is sent from the telephone number authentication unit. A terminal device provided with a log-on screen saver control unit that activates a screen saver and disables operation when it is received. The authentication method. 4. The logon / screen saver control unit activates a screen saver to disable operation of the terminal device when the mobile phone connected to the terminal device is removed after the logon, When a mobile phone is connected to the terminal device again, receiving a phone number collation result from the phone number authentication unit, if the phone number matches, the screen saver is released to allow operation. 3. A terminal user authentication method using the mobile phone described in 3. 5. A means for registering in advance a telephone number of a mobile phone owned by an authorized user of the terminal device and a password unique to the user in the terminal device, and detecting whether the mobile phone is connected to the terminal device. Means for obtaining the telephone number of the connected mobile phone, obtaining the password input from the mobile phone, and comparing the obtained phone number and password with the registered phone number and password; and A terminal user authentication method using a mobile phone, comprising: means for detecting and means for controlling logon and a screen saver of the terminal device according to the result of the means for matching. 6. A mobile phone provided with a user telephone number storage unit preliminarily storing a telephone number of the terminal itself, a password input unit for inputting a password, and a mobile phone telephone owned by an authorized user of the terminal device. A registered telephone number / password storage unit that pre-registers and stores a number and the user-specific password; a connection detection unit that detects whether a mobile phone is connected to the terminal device; The result is notified, the phone number of the connected mobile phone is obtained, the password input from the mobile phone is obtained, and the obtained phone number and password are compared with the registered phone number and password. A password authentication unit, and when the user turns on the terminal device, the telephone number / password The terminal device is logged on to enable the operation when a notification that the password matches is received from the password authentication unit, and a screen saver is received when a notification that the mobile phone is not connected is received from the telephone number / password authentication unit. And a terminal device having a logon / screen saver control unit that activates the terminal and disables operation. 7. The logon / screen saver control unit activates a screen saver to disable operation of the terminal device when a mobile phone connected to the terminal device is removed after the logon, When a mobile phone is connected to the terminal device again, the phone number and password from the phone number / password authentication unit are compared, and if they match, the screen saver is released to allow operation. Claim 6
A terminal user authentication method using the mobile phone described in the above. 8. The terminal user authentication system using a mobile phone according to claim 1, wherein data transfer between the mobile phone and the terminal device uses a serial transfer system. 9. The terminal user authentication method using a mobile phone according to claim 1, wherein the mobile phone is connected to the terminal device by a cable. 10. The terminal user authentication method using a mobile phone according to claim 1, wherein the mobile phone is connected to the terminal device by infrared rays or wirelessly. 11. A first step of registering a telephone number of a mobile phone owned by an authorized user of the terminal device in the terminal device in advance, and a second step of detecting whether the mobile phone is connected to the terminal device. And a third step of acquiring the telephone number of the connected mobile phone, and a fourth step of collating the acquired telephone number with the registered telephone number.
And if the mobile phone is not connected in the second step, or if the telephone number is not the mobile phone of the authorized user of the terminal device in the fourth step, use of the terminal device A fifth step of disabling the terminal device and a sixth step of permitting the use of the terminal device when the telephone number is that of the mobile phone of the authorized user of the terminal device in the fourth step. A terminal user authentication method using a mobile phone. 12. A first step in which a telephone number of a mobile phone owned by an authorized user of the terminal device and a password unique to the user are registered in the terminal device in advance, and whether the mobile phone is connected to the terminal device. A second step of detecting a password, a third step of obtaining a telephone number of the connected mobile phone and obtaining a password input from the mobile phone, and a step of obtaining the obtained telephone number and password from the registered mobile phone. A fourth step of collating with a telephone number and a password, and in the second step, when a mobile phone is not connected, or in the fourth step, the telephone number or the password is not that of an authorized user of the terminal device. A fifth step of disabling the use of the terminal device when the
A step of permitting use of the terminal device when the telephone number or the password is for a legitimate user of the terminal device in step (a). 13. A connection detecting means for detecting whether or not the mobile phone is connected to its own device, a detection result being notified from the connection detecting means, obtaining a telephone number of the connected mobile telephone, and obtaining the obtained telephone number and A telephone number authenticating means for collating with a telephone number of an authorized user of the own apparatus registered in advance, and when the user turns on the power of the own apparatus, a notice of a match is received from the telephone number authenticating means as a result of the collation. When the telephone number authentication unit receives a notification that the mobile phone is not connected, a screen saver is activated to disable the operation. After that, if the mobile phone connected to the own device is removed, the screen saver is activated to disable the operation of the own device, and the mobile phone is connected to the own device again. In the case of having received the collation result of the telephone number from the telephone number authenticating means, if it matches, the user authentication program which causes the computer to function as a logon / screen saver control means for releasing the screen saver and permitting the operation is recorded. Recording medium characterized by the above-mentioned. 14. A connection detecting means for detecting whether or not the mobile phone is connected to its own device, a detection result being notified from the connection detecting means, obtaining a telephone number of the connected mobile phone and inputting from the mobile phone. Telephone number / password authentication means for obtaining the obtained password, and comparing the obtained telephone number and password with the telephone number and password of an authorized user of the terminal device registered in advance, when the user turns on his / her own device In the case where a notification of a match is received from the telephone number / password authentication unit as a result of the collation, the own device is logged on and the operation is permitted, and the mobile phone is connected from the telephone number / password authentication unit. When receiving the notification that there is no operation, activate the screen saver to disable the operation, and after the logon, When the mobile phone connected to the device is removed, the screen saver is activated to disable the operation of the own device, and when the mobile phone is connected to the own device again, the telephone from the telephone number / password authentication unit is disconnected. A recording medium characterized by recording a user authentication program for causing a computer to function as logon / screen saver control means for canceling a screen saver and permitting an operation if the numbers and passwords are compared and received.