JP2008219459A - System for preventing information in cellular phone from being browsed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for preventing information in a cellular phone from being browsed without being aware of browsing prevention measures. <P>SOLUTION: The system for preventing information in the cellular phone from being browsed comprises: a key operation information acquiring unit 202 for acquiring input key information; a key operation information authentication unit 203 for acquiring secret key operation information for normal mode from a secret key operation data base 206, comparing it with the key input information, and determining illegal use by a third person when they do not coincide with each other, then setting a dummy mode, or permitting activation of mail transmission reception history of a correct address book, and transmission reception history etc. when the key coincide with the secret key operation information for normal mode then setting a normal mode; dummy data display unit 205 for displaying mail transmission reception history of a dummy address book, transmission reception history, etc. after activating the mail transmission reception history, the transmission reception history, etc. of the dummy address book when dummy mode is set, and etc. in a cellular phone terminal 201. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a system for preventing browsing of information in a mobile phone by a third party.

With the spread of mobile phones, measures for preventing unauthorized use by third parties and preventing browsing of information in terminals have become indispensable.
Recently, there are many terminals equipped with a lock mechanism based on a personal identification number, and it is easy to disable or restrict access. Some terminals have a secret function, and information that you do not want to be viewed by a third party can be registered so that it is not displayed during normal browsing but only during secret browsing. However, in order to view the secret, it is necessary to enter the password and unlock it.
In addition, as disclosed in Patent Document 1 below, a method for restricting a function that uses personal information and notifying the use of the information when the security flag is set is also disclosed.
Japanese Patent Laid-Open No. 10-229583

Until now, the lock mechanism based on the security code is an effective means to prevent browsing, but it is a third party that the mobile phone is protected from browsing, such as displaying a dialog prompting you to enter the security code. Will be known.
FIG. 5 shows a state in which a dialog 103 that prompts the user to input a personal identification number is displayed when the address book key 102 is pressed on the mobile phone terminal 101 that has undergone browsing prevention processing.
For close relatives such as relatives, taking anti-browsing measures may adversely affect human relationships, such as giving distrust to the other party.

  In view of the above situation, an object of the present invention is to provide a mobile phone information browsing prevention system that prevents browsing of mobile phone information without realizing that browsing prevention measures have been taken.

In order to solve the above problems, the present invention provides the following configurations.
The invention according to claim 1 is a personal identification key operation database for pre-registering normal mode and registration mode personal identification key operation information;
Key operation information acquisition means for acquiring input key information on which a key input operation has been performed;
When a key input operation is detected, normal mode or registration mode password key operation information is acquired from within the password key operation database, and the input key information acquired by the key operation information acquisition means and the normal mode use or registration Compare with the mode code key operation information to determine whether or not they match. If it is determined that they do not match, it is determined to be unauthorized use by a third party and is set to the dummy mode, and matches the mode key password operation information. If it is determined, the normal mode that allows activation of the correct address book, mail transmission / reception history, outgoing / incoming call history, etc. is set. If it is determined that it matches the registration mode PIN key operation information, the key for setting the registration mode is set. Operation information authentication means;
Dummy data display means for activating a dummy address book, mail transmission / reception history, outgoing / incoming history, etc. when the dummy mode is set, and displaying a dummy address book, mail transmission / reception history, outgoing / incoming history, etc.
In-cell-phone information characterized in that, when set in the registration mode, a secret-key operation DB update means for displaying a secret-key-operation registration screen and performing registration processing for the secret-key input operation is provided in the portable phone. The browsing prevention system is provided.

  According to the invention described in claim 1 of the present invention, the owner of the mobile phone can restrict browsing without realizing that a third party is taking measures to prevent browsing of information in the terminal. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings showing examples.
FIG. 1 is a block diagram showing a configuration of a system for preventing browsing of information in a mobile phone according to an embodiment of the present invention.
This system is a mobile phone information browsing prevention system configured in the mobile phone terminal 201, and includes a key operation information acquisition unit 202, a key operation information authentication unit 203, a secret key operation DB (database) update unit 204, a dummy. The data display unit 205 and the password key operation DB 206 are configured.

  The key operation information acquisition unit 202 monitors a user's key operation from the standby screen and acquires the key operation information. The key operation information authentication unit 203 performs an authentication operation to determine whether the key operation information acquired by the key operation information acquisition unit 202 matches the registered password key operation stored in the password key operation DB 206. The personal identification key operation DB updating unit 204 updates data in the personal identification key operation DB 206 when the owner registers the personal identification key operation. The dummy data display unit 205 displays the dummy data instead of the actual data in the mobile phone when it is not authenticated by the key operation information authentication unit 203 and when it is determined to be unauthorized use by a third party. Has a role to display.

FIG. 2 is a table diagram of the password key operation DB 206 and the password key operation table 301 held by the password key operation DB 206.
The password key operation table 301 stores information on a mode type 302, a password key operation count 303, and a password key operation information 304.
The mode type 302 stores information for identifying the operation mode of the mobile phone after the key operation authentication (for example, the normal mode and the registration mode), and the password key operation count 303 is a password registered by the owner. The number of key operations (for example, 6 and 9) is stored, and the security key operation information 304 includes the sequence of the security key operation keys (for example, “4 * 39 # 7” for the normal mode, registration mode). "68 # 00 * 173") is stored.

In this embodiment, an address book will be described as an example, but a mail transmission / reception history, outgoing / incoming call history, and the like can be applied by the same processing.
FIG. 3 is a flowchart of processing for starting the address book from the standby screen.
When the owner uses the address book, the key input operation for inputting the same code as the normal mode personal identification key operation information registered on the standby screen is started (cell phone operation start) (step 401). The key operation information authenticating unit 203 that has detected the key input operation from the standby screen receives the password key operation information 304 (for example, “4 * 39 # 7”) for the normal mode registered in advance from the password key operation DB 206. Obtain (step 402). On the other hand, the key operation information acquisition unit 202 acquires the input key information subjected to the key input operation described above (step 404), and the key operation information authentication unit 203 includes the input key information acquired by the key operation information acquisition unit 202, and The normal mode personal identification key operation information 304 is compared to determine whether or not they match (step 405).

  The determination in step 405 is executed for each code (in this case, key) of the input key information, and is repeated as many times as the number of password key operations 303 of the password key operation information 304, that is, loop processing is performed (step 403). When the key input operation is completed for the number of key operations 303, the loop processing in step 403 is terminated.

  If there is a discrepancy in the determination in step 405, the loop process in step 403 is exited and the process proceeds to step 406 described below.

When step 403 is completed at the end of the key input operation for the number of PIN key operations 303, the series of key input operations completely coincides with the normal mode PIN key operation information 304 (for example, “4 * 39 # 7”). (Step 406), if they match, it is determined that the owner is in the normal use mode, the normal mode in the mode type 302 is set (step 407), and the correct address book is activated (step 408). ).
If they do not match at step 406, it is determined that the address book is illegally used by a third party, and the dummy mode is set (step 409). Then, the dummy data display unit 205 activates the dummy address book (step 408), and the dummy address book is displayed.

FIG. 4 is a flowchart of processing in which the owner registers a password key input operation.
When the owner registers / changes the password input operation, the key input operation for inputting the same code as the password input operation information for the registered mode registered on the standby screen is started (cell phone operation start) ( Step 501). From step 502 to step 505, the same processing as the processing from step 402 to step 405 shown in the flowchart of FIG. 3 is performed.
If they do not match at step 505, the process proceeds to step 506 described below.

  When the loop process of step 503 is completed or the loop process is exited, a series of key input operations is performed by the key operation information authentication unit 203 by the registration mode password key operation information 304 (for example, “68 # 00 * 173”). ]) Is completely determined (step 506), and if it matches, it is determined that the owner has entered a secret key input operation registration process, and the registration mode in the mode type 302 is set (step 507).

When the registration mode is set, the password key operation DB update unit 204 displays a password key operation registration screen (step 508). In this case, the password key operation registration screen is automatically displayed, and the owner can register and change the password key input operation on the password key operation registration screen. The registration process on the system for the password input operation is performed by the password key operation DB update unit 204.
If no match is found in step 506, the password key operation registration screen is not displayed, and a series of processes for registering the password key input operation is completed.

It is explanatory drawing which shows roughly the browsing prevention system of the information in a mobile telephone by this invention. (A) It is explanatory drawing of the PIN key operation database by this invention. (B) It is a data structure figure of the PIN code operation data table by this invention. It is a flowchart of the process which starts an address book from the standby screen by this invention. It is a flowchart of the process which displays a registration screen from the standby screen by this invention. It is explanatory drawing of the browsing prevention system by a prior art example.

Explanation of symbols

206 PIN key operation DB
304 PIN key operation information

Claims (1)

A security key operation database for pre-registering security key operation information for normal mode and registration mode;
Key operation information acquisition means for acquiring input key information on which a key input operation has been performed;
When a key input operation is detected, normal mode or registration mode password key operation information is acquired from within the password key operation database, and the input key information acquired by the key operation information acquisition means and the normal mode use or registration Compare with the mode code key operation information to determine whether or not they match. If it is determined that they do not match, it is determined to be unauthorized use by a third party and is set to the dummy mode, and matches the mode key password operation information. If it is determined, the normal mode that allows activation of the correct address book, mail transmission / reception history, outgoing / incoming call history, etc. is set. If it is determined that it matches the registration mode PIN key operation information, the key for setting the registration mode is set. Operation information authentication means;
Dummy data display means for activating a dummy address book, mail transmission / reception history, outgoing / incoming history, etc. when the dummy mode is set, and displaying a dummy address book, mail transmission / reception history, outgoing / incoming history, etc.
In-cell-phone information characterized in that, when set in the registration mode, a secret-key operation DB update means for displaying a secret-key-operation registration screen and performing registration processing for the secret-key input operation is provided in the portable phone. Browsing prevention system.

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