JP2012119952A - Mobile phone, security improvement method for mobile phone, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile phone, security improvement method for mobile phone, and a computer program for further enhancing security of mobile phones by detecting a long-press and a double-press of key operation so as to increase selected candidates when inputting personal identification number.SOLUTION: A mobile phone stores a key input information containing information on whether the number pressed and input is short pressed (for example less than one second) or long pressed, in a region of FIG. 4(b) when inputting a personal identification number, and compares the key input information with a registered personal identification number indicated in FIG. 4(a). For example, if "1" is short pressed for the first digit, "2" is long pressed for the second, and "3" is long pressed for the third, the information is entirely recorded as input information in the area of FIG. 4(b), which is compared with a registered personal identification number (each digit is appended with short-press/long-press distinction) of FIG. 4(a).

Description

  The present invention relates to a mobile phone, a security improvement method for a mobile phone, and a computer program. More particularly, the present invention relates to a mobile phone, a security improvement method for a mobile phone, and a computer program that can improve security when inputting a personal identification number.

As a conventional method for operating a cellular phone, for example, there is a method as shown in FIG.
Hereinafter, a conventional operation method (use example) of the mobile phone will be described with reference to FIG.
Without the security function, information held by the user's mobile phone (in FIG. 11, the mobile phone of another person) is easily stolen by an operator other than the user. Therefore, in general, security measures for a method of inputting a personal identification number are implemented in mobile phones. That is, as a security measure, there is a method of locking a mobile phone using a personal identification number. In this case, the personal identification number is generally represented by a four-digit number.

This method of locking with a personal identification number seems safe at first glance, but there are only 10,000 (10 4) input candidates for a personal identification number composed of four decimal digits.
Therefore, as shown in FIG. 11, after the message “Please enter the PIN” is displayed in the state 200 of the mobile phone, an operator other than the user inputs some data, so that the data However, as long as it matches the 4-digit password, the password of the mobile phone is released, and the information held by the mobile phone is stolen, and there is a risk that it can be freely manipulated thereafter. .

  In other words, in the above-described method of locking a mobile phone using a 4-digit password, there are only 10,000 input candidates (10 4) as described above. 11, even if the password is not released many times, as shown in FIG. 11, from the state where “the password is wrong” is displayed, “enter the password” displayed in the state 200 of the mobile phone. If the operator other than the user continues to input some data with patience again, the four-digit password will eventually be canceled and the mobile phone status 202 (that is, a state in which “released” is displayed).

  As a known technique in this field, for example, Patent Document 1 discloses a technique for improving the security of personal information of a user stored in a mobile phone or the like. Specifically, when the numeric key “1” is pressed, a corresponding key pressing signal is output from the display operation unit to the control unit, and the pressing time is measured by a timer. When the pressing time is 1 second, the control unit encodes the number “1” and the pressing time (1 second), and “1” is displayed in the seventh digit of the password input field displayed on the display unit. The Similarly, when the numeric key “0” is pressed and the pressing time is 3 seconds, “000” is displayed in the 4th to 6th digits of the password input field. When the numeric key “8” is pressed and the pressing time is 1 second, “8” is displayed in the third digit of the password input field. When the numeric key “5” is pressed and the pressing time is 2 seconds, “55” is displayed in the first and second digits of the password input field. Therefore, “code: 10000055” is displayed in the password input field.

  In addition, for example, in Patent Document 2, the configuration of the locking / unlocking code number operating device can be simplified to reduce the manufacturing cost of the device, and the device can be simplified in this way to reduce the manufacturing cost. However, a device for operating a password for locking and unlocking that provides predetermined security with certainty is disclosed. Specifically, it is an operation device for a password for unlocking / unlocking, and it is sufficient to implement at least two or three operation keys. Registration of the password for unlocking / unlocking the lock device and unlocking with the registered password are possible. The operation can be performed by arbitrarily combining the pressing operations using the two or three operation keys, and the operation key can be placed in the operation key arrangement portion while being hidden in the palm of the operator. It is characterized by the key arrangement.

JP 2008-052416 A JP 2008-121191 A

However, in the conventional mobile phone described in the background art, since the number of digits of the password is small as described above, if an unauthorized user continues to input the password candidate patiently, it can be done in a short time. There was a problem that the lock was released.
In the case of the technique disclosed in Patent Document 1 described above, a number input by pressing is a number having the number of digits corresponding to the number of seconds pressed (three types of 1 second, 2 seconds, and 3 seconds). This number is incorporated into a password candidate. Therefore, for example, when 1 corresponds to 1 second, 2 corresponds to 2 seconds, and 3 corresponds to 3 seconds, if the user presses 1 second, 2 seconds, and 3 seconds, the PIN code "122333" is entered. It will be.

On the other hand, in the mobile phone according to the present invention, when inputting the PIN code key, not only the number input by pressing, but also pressing the key of the number further (for example, pressing for less than 1 second) or Whether the key is long-pressed (pressed for 1 second or longer) is distinguished, and binary information consisting of a combination of a number input by pressing and binary information indicating this distinction is used as input information for a personal identification number. . So, for example, if the first digit is entered as a short press of the 1 key, the 2nd digit is held down as the 2nd key, the 3rd digit is entered as a long press of the 3 key, these information will be entered exactly It is recorded as information and compared with a registered password (the numerical value of each digit is accompanied by a distinction between short press and long press).
Therefore, it is considered that the technique disclosed in Patent Document 1 is different from the present invention.

Further, in the case of the technique disclosed in the above-mentioned Patent Document 2, the control unit performs control for opening the lock of the machine configuration by pressing each of a plurality of keys. It does not authenticate by registering.
The present invention has been made in view of the above-mentioned conventional problems, and enables detection of cases such as “long press” and “double press” of key operations, and selection at the time of inputting a personal identification number. It is an object of the present invention to provide a mobile phone, a mobile phone security improvement method, and a computer program that can further improve the security of the mobile phone by increasing the number of candidates.

  In order to solve the above-described problem, a mobile phone according to the present invention is a password that allows the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus. A number input means; and a password authentication means for authenticating the operator by comparing the input password with a password registered in advance in the storage device, each of the digits of the password number 1 The input information for the digit is recognized as a combination of numerical information indicated by the key pressed at the time of input corresponding to the digit and binary information indicating whether or not the key pressing time exceeds a predetermined time length. The recognized input information is used for the authentication.

  In addition, the method for improving the security of a mobile phone according to the present invention provides a password input for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus. And a password authentication step for authenticating the operator by comparing the entered password with a password registered in advance in the storage device, and each digit of the password is 1 digit. Minute input information is recognized as a combination of numerical information indicated by a key pressed at the time of input corresponding to the digit and binary information indicating whether or not the key pressing time exceeds a predetermined time length, The recognized input information is used for the authentication.

  Further, the computer program according to the present invention includes a password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the mobile phone, and an input A password authentication step for authenticating the operator by comparing the password with the password registered in advance in the storage device, and input information for each digit of the password Is recognized as a combination of numerical information indicated by the key pressed at the time of input corresponding to the digit and binary information indicating whether or not the key pressing time exceeds a predetermined time length, and the recognized input The mobile phone is controlled by using information for the authentication.

  In addition, the mobile phone according to the present invention includes a personal identification number input means for allowing the operator to input a personal identification number for authenticating the operator before the operator uses the processing function provided in the apparatus, and an input A password authentication means for authenticating the operator by comparing the password with a password registered in advance in a storage device, and input information for each digit of the password The numerical information indicated by the first key pressed at the time of input corresponding to the digit, or the numerical information indicated by the first key, and the 1st key pressed within a predetermined time from the time of pressing the key. It is recognized as a combination with numerical information indicated by a second key different from the first key, and the recognized input information is used for the authentication.

  In addition, the method for improving the security of a mobile phone according to the present invention provides a password input for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus. And a password authentication step for authenticating the operator by comparing the input password with a password registered in advance in the storage device, and each of the digits of the password is one digit. Is input within a predetermined time from the time of pressing the key and the numerical information indicated by the first key pressed at the time of input corresponding to the digit, or the numerical information indicated by the first key. In addition, the first key is recognized as a combination with numerical information indicated by a second key different from the first key, and the recognized input information is used for the authentication.

  In addition, the computer program according to the present invention includes a password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the mobile phone, and an input A password authentication step for authenticating the operator by comparing the password with the password registered in advance in the storage device, and input information for each digit of the password , Numerical information indicated by the first key pressed at the time of input corresponding to the digit, or numerical information indicated by the first key, and the numerical information indicated by the first key pressed within a predetermined time The mobile phone is controlled by recognizing it as a combination with numerical information indicated by a second key different from the first key, and using the recognized input information for the authentication.

  As described above, according to the mobile phone of the present invention, the input information for one digit of all digits of the security code, the numerical information indicated by the key pressed at the time of input corresponding to the digit, and the pressing of the key Since it is recognized as a combination (binary set) with binary information indicating whether the time exceeds a predetermined time length and the recognized input information is used for the authentication, it is possible to increase the number of PIN numbers Thus, there is an effect that the security of the mobile phone can be further improved.

1 is a configuration diagram showing an overall configuration of a mobile phone according to a first embodiment of the present invention. It is a timing chart figure which shows the specific example of operation | movement of a long press. It is a timing chart figure which shows the specific example of operation | movement of a short press. 4 shows a storage form of a personal identification number of a telephone set according to the first embodiment of the present invention, FIG. 4 (a) is a storage form of a registered personal identification number, and FIG. 4 (b) is a storage form of a personal identification number input memory; Are shown respectively. It is a flowchart figure which shows the operation | movement at the time of the PIN code input of the mobile telephone which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the operation procedure at the time of the PIN code input of the mobile telephone which concerns on the 1st Embodiment of this invention, and the display content of the display. It is a timing chart figure which shows the specific example of the operation | movement of double pressing. 8 shows a storage form of a personal identification number of a telephone set according to a second embodiment of the present invention, FIG. 8 (a) is a storage form of a registered personal identification number, and FIG. 8 (b) is a storage form of a personal identification number input memory; Are shown respectively. It is a flowchart figure which shows the operation | movement at the time of the PIN code input of the mobile telephone which concerns on the 2nd Embodiment of this invention. It is explanatory drawing which shows the operation procedure at the time of the PIN code input of the mobile telephone which concerns on the 2nd Embodiment of this invention, and the display content of the display. It is explanatory drawing which shows the operation procedure at the time of the PIN code input of the conventional mobile telephone, and the display content of a display.

  The present invention provides a long press key (a key pressed by a “long press” operation described later) or a double press key (simultaneously) as a secret key to be input for user operation lock or unlock of a mobile phone. The two keys pressed are determined, and the processing to be used is added to improve the security of information held by the mobile phone. More specifically, a determination unit for adding a long press key or a double press key is provided, and the number of password input candidates is increased, thereby improving the security of information held by the mobile phone.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a mobile phone, a mobile phone security improvement method, and a computer program according to the present invention will be described in detail below in the order of [first embodiment] and [second embodiment] with reference to the drawings.
In the description of each embodiment, the mobile phone and the method for improving security of the mobile phone according to the present invention will be described in detail. However, the computer program according to the present invention is a component included in the mobile phone of the present invention. Since it is a program for realizing, the description about the program is included in the following description.

[First Embodiment]
FIG. 1 is a configuration diagram showing the overall configuration of the mobile phone according to the first embodiment of the present invention.
In the figure, the cellular phone of this embodiment includes, as main components, an operation keyboard 100, a memory 110 for storing data and programs, a control unit 120 for controlling the whole, data, commands and states. And a display 130 for displaying.
Note that the control unit 120 includes a determination unit 125. The memory 110 has a temporary storage memory 115.

Hereafter, each component which the mobile telephone of this embodiment has is demonstrated.
The keyboard 100 includes operation keys, and is used by a user (operator) when selecting / determining commands and data to be displayed on the display 130.
The memory 110 is a storage device for holding a password registered in advance by the user.
The temporary storage memory 115 is a storage device for temporarily storing a password entered by the user.
The control unit 120 controls a task of storing the input personal identification number in the temporary memory 115 and a task of comparing the personal identification number registered in advance with the personal identification number input by the user.
If the password entered by the user into the mobile phone matches the password registered in advance, the work for unlocking the mobile phone is controlled.

The determination unit 125 is one of the functional modules controlled by the control unit 120. When receiving a key input, the determination unit 125 detects which key is pressed, whether the key is pressed long (described later), or short. It is determined whether it has been pressed (described later).
The display 130 displays data, commands, and the internal state of the mobile phone being operated. Further, when the user inputs data by operating the keyboard 100, the data string input during the input is sequentially displayed.

Hereinafter, the operation of the mobile phone according to the first embodiment of the present invention will be described in detail with reference to FIG.
In the first embodiment of the present invention, when the user has locked the operation of the mobile phone in advance, the operation of pressing and holding the key is possible as the operation of inputting the personal identification number for releasing the lock. This is provided as one of the operations. Therefore, the data formed by the long press is added to the data input by the “short press” operation described later and collated with the personal identification number, thereby improving the security of the mobile phone.
Here, for the sake of simplicity, the above-mentioned “long press” is an operation in which a key is continuously pressed for at least one second. In addition, pressing a normal key that is not such a pressing method is referred to as “short pressing”. Hereinafter, the long press and the short press will be described more specifically.

FIG. 2 is a timing chart showing a specific example of the long press operation.
First, a specific example of the long press operation will be described with reference to the timing chart shown in FIG. However, here, the “1” key provided on the keyboard 100 will be described as an example of use.
In the timing chart shown in FIG. 2, only the “1” key is pressed at the timing of t <b> 1 from the state where all the keys are open. Therefore, when 1 second elapses with the key pressed, the long press of “1” is confirmed at the timing of t2. Furthermore, the key “1” is released from the above-mentioned depression at the timing t3 when one second or more has elapsed from the timing t1.

FIG. 3 is a timing chart showing a specific example of the short press operation.
Next, a specific example of the short press operation will be described with reference to FIG. However, here, the “2” key provided on the keyboard 100 will be described as an example.
In the timing chart shown in FIG. 3, only the “2” key is pressed at the timing of t4 from the state where all the keys are in the open state. After that, when the “2” key is released from the pressing at the timing of T5 within one second after the “2” key is pressed, the short pressing of the “2” key is confirmed.
FIG. 4 shows a storage form of the personal identification number of the telephone according to the first embodiment of the present invention, FIG. 4 (a) is a storage form of a registered personal identification number, and FIG. 4 (b) is for entering a personal identification number. Each storage form of the memory is shown.
Here, it is assumed that the personal identification number has been registered as shown in FIG.
Note that, in the password registration method, the user can register himself / herself by short-pressing and long-pressing the key in the same manner as the password canceling method according to the present invention.

Also, here, the registered personal identification number is four decimal digits, specifically “9900”. Further, the first digit and the fourth digit are formed by a short press, the second digit and the third digit are formed by a long press, respectively. This registered password is assumed to be stored in the memory 110 (see FIG. 4A).
Furthermore, here, it is assumed that the numbers that are input candidates for the password are limited to 10 types of “0” to “9”.

FIG. 5 is a flowchart showing an operation when a personal identification number is inputted in the mobile phone according to the first embodiment of the present invention.
FIG. 6 is an explanatory diagram showing an operation procedure and a display content of the display 130 when inputting the personal identification number of the mobile phone according to the first embodiment of the present invention.
Hereinafter, the operation at the time of inputting the personal identification number of the mobile phone according to the present embodiment will be described using the flowchart shown in FIG. 5 with reference to FIGS.
(Step S300)
First, in step S300, it is assumed that the mobile phone is in a state of waiting for a password input. This password input waiting state corresponds to the state 700 shown in FIG.

(Step S302)
Next, in step S302, the user uses the keyboard 100 to input the first digit of the password. In response to this, the control unit 120 starts a timer for determining long press. In the embodiment of the present invention, the timer time is 1 second.
(Step S304)
Next, in step S304, the control unit 120 waits for the elapsed time that the pressed key is released or the timer times out.
(Step S304)
In step S304, the control unit 120 determines whether the pressed key is released or the timer is timed out. If the pressed key is released, the process proceeds to step S307. If the timer has timed out, the process proceeds to step S306.

(Step S306)
In step S306, the control unit 120 determines that a time-out has occurred due to the passage of 1 second, so it is determined that the first one-digit input is “long press”, and the long press information. And the value are stored in a predetermined area of the memory 115 (see FIG. 4B). Further, the input confirmation of the long press is displayed on the display 130 (see the state 702 in FIG. 6). Here, the long press confirmation display displayed on the display 130 is a character “#”. Thereafter, the process proceeds to step S310.
(Step S310)
In step S310, the control unit 120 determines whether or not the user has entered all the digits of the code number. If the user has not entered all the digits of the code number, the control unit 120 returns to step S302 and continues to the user for the code number. Prompt for input (here, the display in the state 702 of FIG. 6 is unchanged). If the user has entered all the digits of the code number and pressed the enter key or the like, the control unit 120 proceeds to step S312.

(Step S312)
In step S312, the control unit 120 compares the registered password stored in the memory 110 with the input password of all digits stored in the memory 115 (see FIG. 4B). If the registered password and the input password do not match, the process proceeds to step S316. On the other hand, if the registered personal identification number and the inputted personal identification number match, the process proceeds to step S314.
(Step S314)
In step S314, the control unit 120 releases the lock placed on the mobile phone, and displays a message indicating that the lock has been released on the display 130 (see state 706 in FIG. 6). Thereafter, the process ends.

(Step S316)
In step S316, the control unit 120 displays a message “the password is different” on the display 130 (see the state 704 in FIG. 6) after the unlocking of the mobile phone has failed. The process returns to the password input waiting state in step S300.
(Step S307)
In step S307, the control unit 120 determines that the key press is released without the timer having passed 1 second, and thus determines that the key is “short press”, and stops the timer.
(Step S308)
In step S308, the control unit 120 stores the short press information and the input value in a predetermined area of the memory 115 (see FIG. 4B), and displays the short press input confirmation on the display 130 (see FIG. 4). (See state 702 in FIG. 6). Here, the short press confirmation display is the character “*”. Thereafter, the process proceeds to step S310.

In this embodiment, the key is pressed for 1 second or longer for a long press, but there is no problem even if it is defined by other numerical values.
Further, in this embodiment, the number of digits of the personal identification number is 4 and the input value corresponding to the long press is a single digit corresponding to the digit position (see FIG. 4A). In the mobile phone according to the present invention, the number of digits of the personal identification number can be an arbitrary number, and the input value corresponding to the long press can be an arbitrary character string and number string of an arbitrary number of digits corresponding to the digit position.

  According to the mobile phone according to the first embodiment of the present invention, there is an effect that the security of the mobile phone can be further improved by increasing the number of PIN numbers. That is, at the time of key operation, it is possible to select a short press or a long press with a single-digit pressing operation, and adding a selection of numbers (10 in the case of decimal numbers) 20 kinds of selections are possible, and if the PIN is 4 decimal digits, there are 160,000 possible input candidates.

[Second Embodiment]
The overall configuration of the mobile phone according to the second embodiment of the present invention is the same as the overall configuration of the mobile phone according to the second embodiment of the present invention, but the operation during key operation is different.
In the mobile phone according to the second embodiment of the present invention, when the user has locked the operation of the mobile phone in advance, the process of double-pressing the key as the operation of inputting the password for release The security is further improved by adding.
Here, the double pressing is a state in which one key is pressed while another key is pressed (that is, two keys are pressed simultaneously). It does not matter which key is pressed first.

Hereinafter, the double pressing will be described in detail by taking the case where the “1” key and the “2” key are pressed as an example.
FIG. 7 is a timing chart showing a specific example of the double pressing operation.
First, a specific example of the double pressing operation will be described with reference to the timing chart shown in FIG. However, here, “1” and “2” keys provided in the keyboard 100 will be described as an example of use.
First, from the open state, the “1” key is pressed at the timing of t21. Thereafter, the “2” key is pressed at the timing t22 within one second while the “1” key is pressed.
At the timing of t23 when 1 second has elapsed from the timing of t21, or at the timing when either the “1” key or the “2” key is released from the pressed state, the “1” key and the “2” key Double press is confirmed.

Thereafter, the “2” key is released at the timing of t24, and the “1” key is released at the timing of t25. However, when the “2” key is pressed at the timing of t22, the control unit 120 thereafter performs t25. Until the “1” key is released at this timing, no further key presses are accepted.
In the timing chart shown in FIG. 7, it is assumed that the double press is confirmed after 1 second from the timing t21. However, in the present invention, in general, the “1” key or “2” is displayed 1 second before the timing t21. Even when the key is released from the pressed state, the double press of the “1” key and the “2” key is confirmed.

FIG. 8 shows a storage form of a personal identification number of a telephone set according to the second embodiment of the present invention, FIG. 8 (a) is a storage form of a registered personal identification number, and FIG. 8 (b) is for entering a personal identification number. Each storage form of the memory is shown.
Here, it is assumed that the password has been registered as shown in FIG.
Note that, in the password registration method, the user can register himself / herself by performing single key press and double key press in the same manner as the password release method according to the present invention.
Also, here, the registered password is four decimal digits, the first digit is “9” and the “0” key is double-pressed, and the second to fourth digits are “9”, Each of the “0” and “0” keys is a single press. It is assumed that this input password is stored in the memory 110 (see FIG. 8B).

FIG. 9 is a flowchart showing an operation when a personal identification number is inputted in the mobile phone according to the second embodiment of the present invention.
FIG. 10 is an explanatory diagram showing an operation procedure and a display content on the display 130 when inputting a personal identification number of the mobile phone according to the second embodiment of the present invention.
Hereinafter, the operation at the time of inputting the personal identification number of the mobile phone according to this embodiment will be described using the flowchart shown in FIG. 9 with reference to FIGS.
(Step S500)
First, in step S500, it is assumed that the mobile phone is in a state waiting for input of a personal identification number. This password input waiting state corresponds to the state 1100 shown in FIG.
(Step S502)

Next, in step S <b> 502, the control unit 120 performs control when the user inputs one password using the keyboard 100. At this time, the key pressed first is kept pressed, and enters the waiting state for pressing another key.
(Step S504)
Next, in step S504, the control unit 120 determines whether the first pressed key is released from the pressed state after 1 second without any other key being pressed, or 1 second from the time when the first key is pressed. It is verified whether or not the second key has been pressed within one second, and if the first pressed key is released from the pressed state after one second without any other key being pressed, the process proceeds to step S508. If the second key is pressed within one second from the time when the first key is pressed, the process proceeds to step S506.

(Step S506)
In step S506, the control unit 120 determines “double press” as a process when the second key is pressed within one second from the time when the first key is pressed, and double-press key information ( Double press: YES) and the values of the two keys are stored in a predetermined area of the memory 115 (see FIG. 8B). Thereafter, it is displayed on the display 130 that the double press input has been confirmed (state 1102 in FIG. 10). Here, the confirmation of double pressing is the character “◎”.
(Step S509)
In step S509, the control unit 120 releases the pressed key after the storage of the key information in the memory 115 is completed.

(Step S510)
Next, in step S510, the control unit 120 determines whether or not the user has entered all the digits of the code number. If the user has not entered all the digits of the code number, the control unit 120 returns to step S502 and returns the code to the user. The user is prompted to continue entering the number (see state 1100 in FIG. 10). If the input of the password is confirmed by pressing the enter key after the user has input the password for all digits, the control unit 120 proceeds to step S512.
(Step S512)
In step S512, the control unit 120 compares the registered password stored in the memory 110 with the password stored in the memory 115, and the registered password and the password stored in the memory 115 are compared. If the numbers match, the process proceeds to step S514. On the other hand, if the registered password and the password stored in the memory 115 do not match, the process proceeds to step S516.

(Step S514)
In step S514, the control unit 120 unlocks the mobile phone, and then displays a message indicating that the lock has been released on the display 130 and ends the process (state 1106 in FIG. 10).
(Step S516)
In step S516, the control unit 120 displays a message that “the password is different” on the display 130 as a case where the registered password and the password stored in the memory 115 do not match, Returning to S500, the process returns to the input waiting state for the personal identification number (state 1104 in FIG. 10).

(Step S508)
In step S508, the control unit 120 determines a single press as a case where the first pressed key is released from the pressed state after one second without any other key being pressed, and “single press” is selected. Information and the value of the first key are stored in a predetermined area of the memory 115 (see FIG. 8B), and input confirmation of single press is displayed on the display 130 (see state 1102 in FIG. 10). Here, the single-press confirmation display is the character “*”. Thereafter, the process proceeds to step S509.

  According to the mobile phone according to the second embodiment of the present invention, there is an effect that security can be further improved by increasing the number of PIN numbers to be collated on a large scale. That is, even if the input is for one digit, the first key selection (10 ways) and the second key selection (10 ways) have a total of 100 choices. In the choices, the password that can be entered is composed of 4 digits, so that there are a total of 100 million input candidates.

  In addition, it is assumed that at least a part of the processing of each component of the mobile phone according to the present invention is executed by computer control, and the above-described processing is executed by the computer according to the procedures shown in the flowcharts of FIGS. May be stored and distributed in a computer-readable recording medium such as a semiconductor memory, a CD-ROM, or a magnetic tape. A computer including at least a microcomputer, a personal computer, and a general-purpose computer may read and execute the program from the recording medium.

DESCRIPTION OF SYMBOLS 100 Keyboard 110 Memory 115 Temporary storage memory 120 Control part 125 Discriminating part 130 Display 140 Radio | wireless part 145 Antenna 150 Microphone 160 Speaker 170 Camera 180 GPS module 190 Battery

Claims (9)

Before the operator uses the processing function provided in the apparatus, the password input means for inputting the password for authenticating the operator;
A password authentication means for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
With
The input information for one digit of each digit of the code number includes numerical information indicated by a key pressed at the time of input corresponding to the digit, and 2 indicating whether or not the key pressing time exceeds a predetermined time length. A mobile phone that is recognized as a combination with value information and uses the recognized input information for the authentication.   When the key is released without exceeding the predetermined time length, the key is determined to be “short press”, and after the key pressing time exceeds the predetermined time length, the key is pressed. 2. The binary information is constituted by determining whether the key is "long pressed" when the key is released, and information indicating whether the key is "short pressed" or "long pressed". The mobile phone described.   The mobile phone according to claim 1 or 2, wherein the predetermined time length is 1 second or substantially 1 second. A password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus;
A password authentication step for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
Have
The input information for one digit of each digit of the code number includes numerical information indicated by a key pressed at the time of input corresponding to the digit, and 2 indicating whether or not the key pressing time exceeds a predetermined time length. A method for improving the security of a mobile phone, comprising: recognizing as a combination with value information, and using the recognized input information for the authentication. A password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the mobile phone;
A password authentication step for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
Have
The input information for one digit of each digit of the code number includes numerical information indicated by a key pressed at the time of input corresponding to the digit, and 2 indicating whether or not the key pressing time exceeds a predetermined time length. A computer program for controlling the mobile phone by recognizing it as a combination with value information and using the recognized input information for the authentication. A password input means for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus;
A password authentication means for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
With
The input information for one digit of each digit of the code number includes numerical information indicated by the first key pressed at the time of input corresponding to the digit, or numerical information indicated by the first key, and Recognizing as a combination with numerical information indicated by a second key different from the first key pressed within a predetermined time from the time of pressing, and using the recognized input information for the authentication A featured mobile phone.   When the key is released without the first key pressing time exceeding the predetermined time length and the second key pressing is not detected, “single pressing” of the key is determined. In addition, the numerical information indicated by the first key is recognized as input information corresponding to the digit, and the second key until the predetermined time length elapses from the time when the first key is pressed. When pressing of the key is detected, “double press” of the key is determined, and each of the numerical information indicated by the first key and the second key is recognized as input information corresponding to the digit. The mobile phone according to claim 6. A password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the apparatus;
A password authentication step for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
With
The input information for one digit of each digit of the code number includes numerical information indicated by the first key pressed at the time of input corresponding to the digit, or numerical information indicated by the first key, and Recognizing as a combination with numerical information indicated by a second key different from the first key pressed within a predetermined time from the time of pressing, and using the recognized input information for the authentication A method for improving security of a mobile phone. A password input step for allowing the operator to input a password for authenticating the operator before the operator uses the processing function of the mobile phone;
A password authentication step for authenticating the operator by comparing the input password with a password registered in advance in the storage device;
Have
The input information for one digit of each digit of the code number includes numerical information indicated by the first key pressed at the time of input corresponding to the digit, or numerical information indicated by the first key, and By recognizing as a combination with numerical information indicated by a second key different from the first key pressed within a predetermined time from the time of pressing, and using the recognized input information for the authentication A computer program for controlling the mobile phone.

Images