JP2008227831A - Portable terminal, method for controlling displaying of individual information in the same, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a function of protecting individual information, which effectively functions with respect to actions for illegally releasing or changing an operation lock and an operation mode. <P>SOLUTION: When first user authentication by the input of a security number fails a plurality of times in an operation lock state, a portable terminal changes a non-display flag to be "1", and performs transition to an individual information non-displaying mode for suppressing the displaying of the individual information stored in a memory. The portable terminal subsequently continues to be operated in the individual information non-displaying mode unless the second user authentication (originator number authentication) which is different from the first user authentication is successfully performed, regardless of the operation lock state/operation unlock state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable terminal, a display control method for personal information in a portable terminal, a program, and a recording medium, and in particular, includes a security function for switching from a locked state to an unlocked state when user authentication is successful by an arbitrary authentication method. The present invention relates to a portable terminal, a display control method for personal information in the portable terminal, a program, and a recording medium.

  A lot of personal information is stored in mobile terminals such as mobile phones and PDAs (Personal Digital Assistants), and many mobile terminals protect the information that you want to keep secret by performing user authentication such as password entry and fingerprint authentication. Has a security function.

  For example, Patent Document 1 discloses a personal identification number when a request for operating a wireless portable terminal in an operation lock state to display personal information or canceling the operation lock itself is received. In addition, there is disclosed a wireless portable terminal that has a function of photographing a password input person by a camera when the input of the password is requested and the input of the password is failed a predetermined number of times.

  In Patent Document 2, as a defense against a so-called peeping action, while displaying highly confidential information, the viewing angle of the screen is narrowed, and in the state where highly confidential information is not displayed, the viewing angle of the screen is expanded. A portable information terminal device that performs control is disclosed.

JP 2003-169371 A JP 2006-319554 A

  According to the wireless portable terminal device of Patent Document 1, it is possible to quickly inform the owner of the fact that personal information is being viewed without permission, but it is assumed that the portable terminal is equipped with a camera. In addition, if photographing itself is not a deterrent, such as no hesitation that an unauthorized operator is photographed, it may be possible to repeatedly enter a PIN number and eventually see personal information. .

  In addition, the portable information terminal device of Patent Document 2 also discloses that the user authentication is permitted when switching from the secret mode to the non-secret mode and is not switched when it fails. It is the same as Patent Document 1 described above in that there is a possibility that the non-secret mode can be canceled by repeatedly executing the input of numbers and the like.

  The present invention has been made in view of the circumstances described above, and the object of the present invention is to provide a personal information protection function that functions effectively against the above-described operation lock and unauthorized release / unauthorized change of operation mode. It is to provide.

  According to the first aspect of the present invention, when the first user authentication is successful, the portable terminal has a security function for switching from the locked state to the unlocked state, and the first user authentication fails. Thereafter, the personal information display inhibiting means for inhibiting the display of the personal information stored in the memory, and when the second user authentication different from the first user authentication is successful, the personal information is displayed. There is provided a portable terminal characterized by comprising an allowed personal information display permission means.

  According to a second aspect of the present invention, there is provided a personal information display control method in a mobile terminal having a security function for performing a first user authentication and switching from a locked state to an unlocked state. When the first user authentication fails, the personal information non-display mode for suppressing the display of the personal information stored in the memory is entered, and thereafter, the second user authentication different from the user authentication is not successful. There is provided a personal information display control method in a portable terminal characterized in that the operation is continued in the personal information non-display mode as long as possible.

  According to a third aspect of the present invention, there is provided a program that is executed by a mobile terminal having a security function for performing a first user authentication and switching from a locked state to an unlocked state, and the first user authentication fails. In the case of succeeding in the process of suppressing the display of the personal information stored in the memory and the second user authentication different from the first user authentication, the display of the personal information is thereafter performed. There are provided a program for causing the portable terminal to execute an allowed process and a recording medium storing the program.

  According to the present invention, it is possible to reduce the possibility of browsing personal information stored in a mobile terminal. The reason is that personal information that can be released by a method different from the first user authentication, using an attack on the first user authentication system that an unauthorized person who wants to browse personal information illegally as an operation trigger. It has a display control function.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a mobile phone terminal according to an embodiment of the present invention. Referring to FIG. 1, a configuration of a mobile phone terminal including a display unit 11, a control unit 12, a memory 13, an operation unit 14, and a wireless unit 15 is shown.

  The display unit 11 is configured by a display device such as a liquid crystal display device, and displays necessary information or the like according to the user's operation content via the operation unit 14.

  The memory 13 includes an electrically rewritable nonvolatile memory, and stores a personal identification number 131, a non-display flag 132, personal information 133, a security release telephone number 134, and the like which will be described later. Further, it is assumed that the memory 13 stores a computer program for causing the control unit 12 to perform an operation described later.

  The personal identification number 131 is a personal identification number input when releasing a security lock (operation lock) described later. The non-display flag 132 is a flag for switching display / non-display of the personal information 133. Here, when the non-display flag 132 is “1”, the display of the personal information is suppressed and the non-display flag 132 is “ When “0”, display of personal information is permitted. The personal information 133 is data created by the user such as telephone directory data, outgoing / incoming history, schedule data, transmission / reception e-mail, camera image, recording data, memo data, and the like. The security release telephone number 134 is an incoming telephone number that is required when the non-display flag 132 is cleared to “0”. For example, a mobile telephone number of a mobile terminal user or a mobile telephone number such as a family is set.

  The operation unit 14 includes a number key and a pointing device, and accepts an input of a password and an operation of a mobile phone.

  The radio unit 15 includes an antenna and a modem, and receives an incoming call from a base station (not shown).

  The control unit 12 switches to the personal information non-display mode based on the result of the first user authentication and the first user authentication for comparing the number input from the operation unit 14 with the personal identification number 131 stored in the memory 13. In addition to determining whether or not to leave the personal information non-display mode and returning to the normal operation mode, each part of the mobile phone terminal is controlled.

  Next, the operation of the mobile phone terminal configured as described above will be described with reference to the drawings. First, a description will be given with reference to the flowchart of FIG. 2 showing an operation when a personal identification number is input to the mobile phone terminal according to the present invention. In the initial state, it is assumed that the non-display flag 132 of the memory 13 is set to “0” that permits display of personal information.

  First, the mobile phone terminal transitions to a security lock (operation lock) state when a predetermined operation using the operation setting screen or the like, or when a key input or the like is not performed for a certain period of time or more ( Step 2-1).

  When the operation unit 14 of the mobile phone terminal is operated in the security lock (operation lock) state, the mobile phone terminal displays a password input screen (step 2-2).

  When the password is entered on the password entry screen (step 2-3), the control unit 12 of the mobile phone terminal compares the entered password with the encryption number 131 stored in the memory 13. (Step 2-4).

  As a result of the comparison, if the input password matches the password 131 stored in the memory 13 (Yes in step 2-4), the mobile phone terminal is determined to be a valid user, The security lock is released and the screen shifts to the standby screen (steps 2-5 and 2-6).

  On the other hand, when the input personal identification number does not match the personal identification number 131 stored in the memory 13 (No in Step 2-4), the count of the number of mismatches is started (No in Step 2-7, Step To 2-2).

  When the mismatch between the entered personal identification number and the personal identification number 131 stored in the memory 13 reaches a predetermined number of times (continuous n times, cumulative n times) (Yes in step 2-7), the mobile phone terminal Changes the non-display flag 132 of the memory 13 to “1”, displays the input NG display (step 2-9), and returns to step 2-1.

  FIG. 3 is a diagram showing an example of display control according to the value of the non-display flag 132 in the mobile phone terminal. Referring to FIG. 3, when a personal information reference operation is accepted from the standby state (step 3-1) (step 3-2), the control unit 12 of the mobile phone terminal confirms the state of the non-display flag 132. (Step 3-3).

  If the non-display flag 132 is “0” as a result of the confirmation of the non-display flag 132 (Yes in step 3-3), the control unit 12 of the mobile phone terminal displays the display content including personal information according to the operation content. It displays on the display part 11 (step 3-4).

  On the other hand, when the non-display flag 132 is “1” (No in Step 3-3), the control unit 12 of the mobile phone terminal rejects the personal information reference request. At this time, the display unit 11 of the cellular phone terminal can display a message to the effect that it is not registered in the memory 13 such as “no memory registration” (step 3-5).

  After that, even if the security lock is released, if the non-display flag 132 is “1”, the control unit 12 of the mobile phone terminal may be operated so as to reject the personal information reference request. desirable. Thereby, even if the correct password is input, it is possible to prohibit the reference of the personal information.

  Next, an operation for returning the non-display flag 132 to “0” (end operation in the personal information non-display mode) will be described. FIG. 4 is a flowchart for explaining the operation when a call is made to the mobile phone terminal.

  Referring to FIG. 4, when the non-display flag 132 is “1” (step 4-1; personal information non-display state) and an incoming call is received from the base station (step 4-2), the mobile phone terminal is controlled. The unit 12 compares the caller telephone number with the security release telephone number 134 stored in the memory 13 (step 4-3).

  As a result of the comparison, if the caller telephone number matches the security release telephone number 134 stored in the memory 13 (Yes in step 4-3), the mobile phone terminal is a release instruction from a legitimate user. And the non-display flag 132 is returned to “0” (step 4-4), and the incoming call state is entered (step 4-5).

  On the other hand, if the caller telephone number does not match the security release telephone number 134 stored in the memory 13 (No in step 4-3), the non-display flag 132 is not returned to “0” and the incoming call state is entered. (Step 4-5).

  In this manner, a personal information protection function that can be easily validated and released by an authentic user but difficult for an unauthorized person to release is realized.

  As described above, the embodiment of the present invention has been described. When the first user authentication based on the input of the first authentication information has failed, the personal information non-display mode for suppressing the display of the personal information stored in the memory is entered. Then, the gist of the present invention is to operate so as not to end the personal information non-display mode unless the user authentication using the second authentication information at least partially different from the authentication information used in the first user authentication is successful. Various modifications and substitutions that can be made by those skilled in the art can be made without departing from the scope of the present invention.

  For example, in the above-described embodiment, the example applied to the mobile phone terminal has been described. However, the present invention is not limited to the mobile phone terminal, and other personal computers, PDAs (Personal Digital Assistants), digital cameras, etc. Needless to say, the present invention is applicable to all portable terminals that handle information.

  In the above-described embodiment, it has been described that the personal information non-display mode is entered when the input of the encryption number fails several times, and the display of the personal information stored in the memory 13 is suppressed thereafter. Needless to say, the operation is not limited to the mismatch of numbers, and the same operation is performed even when unlocking by password authentication, various biometrics authentication, or the like fails.

  In the above-described embodiment, the personal information non-display mode can be terminated by calling the mobile phone terminal from the security release telephone number 134 stored in the memory 13. It is not limited to the transmission by the telephone number, but may be anything that inputs or transmits information different from the (first) user authentication. For example, if the above (first) user authentication requires the input of a several-digit personal identification number 131, a personal identification number, password, various biometric information different from the personal identification number 131, or a combination thereof Can be stored in the memory 13, and the configuration in which the personal information non-display mode is terminated only when authentication by these is successful, making it difficult to refer to personal information by an unauthorized person. .

  Further, for example, as shown in FIG. 5, when the portable terminal has an external interface 16 for connecting a personal computer or the like, the personal computer or the like is connected via the external interface 16 to the control unit 12 (second It is also possible to adopt a configuration in which the authentication information is transmitted and the non-display flag 132 is cleared.

  In addition, the mobile terminal may be set to a non-display mode by using a transmission by the specific telephone number or transmission of (second) authentication information from the external device as a trigger. In this case, for example, when the user of the mobile terminal loses the mobile terminal, the mobile terminal can be placed in a personal information non-display mode by making a call using a specific telephone number. When the mobile terminal returns to the hand, the user of the mobile terminal can end the personal information non-display mode by making a call again with a specific telephone number.

It is a block diagram showing the structure of the mobile telephone terminal which concerns on one Embodiment of this invention. It is a flowchart showing operation | movement at the time of inputting a PIN code in the mobile telephone terminal which concerns on one Embodiment of this invention. It is a figure for demonstrating the example of a display according to the value of the non-display flag in the mobile telephone terminal which concerns on one Embodiment of this invention. It is a flowchart for demonstrating the operation | movement at the time of making a telephone call with respect to the mobile telephone terminal which concerns on one Embodiment of this invention. It is a block diagram showing the structure of the mobile telephone terminal which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Display part 12 Control part 13 Memory 14 Operation part 15 Wireless part 16 External interface 131 Security code 132 Non-display flag 133 Personal information 134 Security release telephone number

Claims (14)

A mobile terminal having a security function for switching from a locked state to an unlocked state when the first user authentication is successful,
Personal information display inhibiting means for inhibiting the display of personal information stored in the memory when the first user authentication fails;
Personal information display permission means for permitting display of the personal information when a second user authentication different from the first user authentication is successful,
A mobile terminal characterized by. The first user authentication is performed by collating the contents input by the key with predetermined authentication information,
The personal information display suppression means suppresses the display of personal information thereafter when the mismatch between the key input content and the authentication information is repeated a predetermined number of times.
The mobile terminal according to claim 1. The personal information display permission means receives second authentication information from an external device as second user authentication, thereby allowing the display of the personal information thereafter;
The portable terminal according to claim 1 or 2, characterized by the above-mentioned. The personal information display permitting means accepts an incoming call from a predetermined telephone number as the second user authentication, thereby allowing the display of the personal information thereafter.
The portable terminal according to claim 1 or 2, characterized by the above-mentioned. The personal information display suppression means suppresses the display of the personal information thereafter, even when the second authentication information is received from an external device.
The portable terminal according to any one of claims 1 to 4, wherein The personal information display deterring means also suppresses the display of the personal information after receiving an incoming call from a predetermined telephone number;
The portable terminal according to any one of claims 1 to 4, wherein A display control method for personal information in a mobile terminal having a security function for performing a first user authentication and switching from a locked state to an unlocked state,
When the mobile terminal fails in the first user authentication, the mobile terminal transits to a personal information non-display mode for suppressing the display of personal information stored in the memory. Continue operation in the personal information non-display mode unless user authentication is successful,
A personal information display control method in a portable terminal. The first user authentication is performed by collating the contents input by the key with predetermined authentication information,
The portable terminal ends the personal information non-display mode when the mismatch between the keyed content and the authentication information is repeated a predetermined number of times;
The personal information display control method in a portable terminal according to claim 7. The portable terminal ends the personal information non-display mode by receiving second authentication information from an external device as second user authentication;
The display control method for personal information in the portable terminal according to claim 7 or 8. The portable terminal ends the personal information non-display mode by receiving an incoming call from a predetermined telephone number as second user authentication;
10. A display control method for personal information in a portable terminal according to any one of claims 7 to 9. The portable terminal suppresses the display of the personal information afterward even when the second authentication information is received from an external device.
The personal information display control method in a portable terminal according to any one of claims 7 to 10. The mobile terminal suppresses the display of the personal information after receiving an incoming call from a predetermined telephone number;
The personal information display control method in a portable terminal according to any one of claims 7 to 10. A program to be executed by a mobile terminal having a security function for performing first user authentication and switching from a locked state to an unlocked state,
A process of suppressing display of personal information stored in the memory after the first user authentication fails;
A program for causing the portable terminal to execute a process of permitting display of the personal information when the second user authentication different from the first user authentication is successful.   A recording medium storing the program according to claim 13.

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