JP2014157627A - Portable telephone device and password information identification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable suppression of lock of a portable telephone device due to a failure to collate password information because of a user's input error.SOLUTION: A non-coincident number detection section 132 detects (counts) the number of points (the number of non-coincidences) of parts where a character, a numeral or the like does not coincide with each other between a character string of input input information and a character string of password information stored in a storage part 105. A non-coincident number comparison section 133 determines that the number of non-coincidences detected by the non-coincident number detection section 132 exceeds 1. When it is detected by a non-coincident number comparison part 133 that the number of the non-coincidences exceeds 1, an inputtable time reduction section 134 reduces the number of inputtable times of the password information by 1. An input control section 135 controls a reception of an input of the password information by an operation of an operation section 104, and receives the input of the password information until the number of inputtable times of the password information reaches zero (0).

Description

  The present invention relates to a mobile phone and a personal identification information identifying method for preventing unauthorized use by authenticating personal identification information.

  In recent years, functions of mobile phones have been increased. Among these, there are many cases where more important personal information is stored in the mobile phone, and the confidentiality of such information is required. In such a background, the mobile phone is provided with a lock function for preventing unauthorized use by others, and the lock is released by collation based on password information such as a password.

  In addition, the verification based on the password information is often allowed only to be input several times in order to prevent the authentication by impersonating another person. For example, if the collation of the password information fails several times, the lock information is completely locked and the password information is not accepted. Therefore, if the input of the password information is mistaken beyond the set number of times, the password is completely locked, and the lock is released by another means.

  For example, there is a technique in which when there are few errors in collation of personal identification information, an input error is determined and displayed on a screen (see Patent Document 1). Further, there is a technique for counting the number of mismatched characters in collation of personal identification information, and determining that the input is illegal if there are many (see Non-Patent Document 2). Further, there is a technique for determining the input error and generating a sound if the number of matching characters is counted and exceeds a reference value in the matching of Asho information (see Non-Patent Document 3). Further, there is a technique of counting the number of matching characters and determining that an input error has occurred unless the reference value is exceeded (see Non-Patent Document 4).

JP 2005-038416 A JP 2007-128201 A JP 2008-071009 A Japanese Patent Laid-Open No. 9-212723

  However, the above-described collation technology using the mobile phone and the personal identification information can make the user recognize an input mistake such as a mistake in typing the key. Similarly to the above, it is assumed that the verification of the password information has failed. For this reason, in particular, in the case of a user who is unfamiliar with the operation, even if he / she tries to input correct password information, an input error is likely to occur. In such a state, psychological heavy pressure is applied to the user of the mobile phone, and there is a problem that, for example, the user is hesitant to use the mobile phone.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to make it possible to suppress the lock of a mobile phone due to a failure to collate password information caused by a user's input error. And

  The mobile phone according to the present invention is a mobile phone that restricts acceptance of input based on the password information, and a password information authentication means for performing authentication by comparing the input information input and the password information stored in the storage unit. The mismatch number detection means for detecting and counting the number of unmatched portions between the input input character string and the password information character string stored in the storage unit, and the mismatch number detection means The mismatch number comparison means for determining that the detected number of mismatches exceeds 1 and the number of times the password information can be entered can be reduced by one by detecting that the number of mismatches by the mismatch number comparison means exceeds 1. It includes at least a number reduction section and input control means for receiving input of password information until the number of times that the password information can be input becomes zero.

  The personal identification information identifying method according to the present invention is a personal identification information identifying method that restricts acceptance of input of a mobile phone by means of personal identification information, and compares the input information inputted and personal identification information stored in a storage unit. Inconsistent number detection that detects and counts the number of unmatched portions between the input information input character string and the input information character string stored in the storage unit. A step, a mismatch number comparison step for determining that the number of mismatches detected exceeds 1, and a count of possible inputs that reduces the number of times the password information can be input by detecting that the number of mismatches exceeds 1. And an input control step of accepting input of the password information until the number of times the password information can be input becomes zero.

  As described above, according to the present invention, it is possible to obtain an excellent effect that the lock of the mobile phone due to the collation failure of the password information caused by the user's input error can be suppressed.

It is a block diagram which shows the structure of the mobile telephone in embodiment of this invention. It is a block diagram which shows the structure of a mobile telephone. It is a flowchart explaining the operation | movement (password information identification method) of the mobile telephone in embodiment of this invention. 4 is a screen configuration diagram illustrating a display example on a display unit 106. FIG. It is a flowchart explaining the other operation | movement (password information identification method) in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing a configuration of a mobile phone according to an embodiment of the present invention. First, this mobile phone includes an antenna 101, a transmission / reception unit 102, a main control unit 103, an operation unit 104, a storage unit 105, and a display unit 106, as in a general mobile phone currently on the market. Each part is connected by a bus, for example. Further, for example, as shown in FIG. 2, the mobile phone includes a receiver 201 at the top of the display unit 106 and a transmitter 202 at the bottom of the operation unit 104.

  In the mobile phone, the call control is performed by the control of the main control unit 103 based on the instruction input (accepted) by the operation of the operation unit 104 by the user and the signals received by the antenna 101 and the transmission / reception unit 102. And information is sent and received. In addition, the state of accepting operations by the user, the state of communication, and the like are displayed on the display unit 106 and can be visually recognized by the user. Also, these are realized by the operation of the main control unit 103 according to the program stored in the storage unit 105. The storage unit 105 stores password information such as a password.

  In addition to the configuration described above, the mobile phone according to the present embodiment includes a personal identification information authenticating unit 131, a mismatch number detection unit 132, a mismatch number comparison unit 133, an input possible count reduction unit 134, and an input control unit 135.

  The password information authenticating unit 131 performs authentication by comparing the input information that has been input with the password information stored in the storage unit 105. The personal identification information is a character string made up of numbers such as personal identification numbers and characters. The mismatch number detection unit 132 counts the number of unmatched parts such as characters and numbers between the character string of the input information input and the character string of the password information stored in the storage unit 105 ) Is detected (counted).

  For example, when the input information is “123556” for the password information “123456”, the mismatch number detection unit 132 does not match the number (character) in the third digit (fourth from the left side of the character string). Therefore, this is detected and the number of mismatches is “1”. Further, for example, when the input information is “123546” for the password information “123456”, the mismatch number detection unit 132 detects these numbers because the numbers in the second and third digits do not match. The number of mismatches is “2”.

  The mismatch number comparison unit 133 determines that the number of mismatches detected by the mismatch number detection unit 132 exceeds 1. When the mismatch number comparison unit 133 detects that the number of mismatches exceeds 1, the number of times that the number can be entered is reduced by one. The input control unit 135 controls the input of password information by the operation of the operation unit 104, and receives the input of password information until the number of times the password information can be input becomes zero.

  Next, the operation of the cellular phone in this embodiment (password information identification method) will be described using the flowchart of FIG.

  First, when the user of the mobile phone uses the mobile phone, the keys of the operation unit 104 are operated. This operation is accepted by the main control unit 103. The personal identification information authenticating unit 131 is activated under the control of the main control unit 103 that has accepted the key operation. The activated personal identification information authenticating unit 131 first displays a message for prompting input of personal identification information on the display unit 106 (step S301).

  For example, as shown in FIG. 4, “Please enter your password” is displayed in the message display 401 at the top of the display unit 106. This is a case where a personal identification number is used as personal identification information. Also, the input display section 402 at the center of the display section 106 displays the input state of the password information. In addition, the remaining input count display unit 403 below the display unit 106 displays the remaining number of times that the password information can be input. In the initial state, since the password information is not input, for example, “3 times” is displayed on the remaining input number display unit 403 as the remaining number of times the password information can be input.

  As described above, by operating the operation unit 104 by the user who has visually recognized the displayed message, for example, a number is input and accepted by the personal identification information authentication unit 131 (step S302). When the input information is received, the password information authentication unit 131 compares the password information stored in the storage unit 105 with the input information. When the comparison is matched and authentication is performed (Y in step S303), the personal identification information authenticating unit 131 notifies the main control unit 103 that the authentication has been performed. The main control unit 103 that has received this notification terminates the authentication operation as the authentication is completed (step S304).

  On the other hand, if the received input information does not match the password information stored in the storage unit 105 (N in step S303), the mismatch number detection unit 132 is stored in the input information character string and the storage unit 105. The number of non-matching parts (number of mismatches) in the character string of the personal identification information is detected (counted) (step S305). For example, when a personal identification number is used, the number of digits that do not match between the input numerical sequence and the numerical sequence of the personal identification number stored in the storage unit 105 is counted.

  Next, the mismatch number comparison unit 133 determines that the number of mismatches obtained by counting exceeds 1 (step S306). If the number of mismatches does not exceed 1 (N in step S306), the process returns to step S302, and the personal identification information authenticating unit 131 waits for the next input. On the other hand, if the number of inconsistencies exceeds 1 (Y in step S306), the allowable number of times reduction unit 134 decreases the allowable number of times the password information can be input by 1 (step S307).

  Next, the input control unit 135 determines the number of times the password information can be input (step S308). If it is confirmed in this determination that the number of possible inputs is not 0 (N in step S308), the input control unit 135 determines the remaining number of input times displayed on the remaining input number display unit 403 of the display unit 106. Decrease by 1 (step S309). Next, the process returns to step S302, and the personal identification information authenticating unit 131 waits for the next input.

  On the other hand, if it is confirmed that the number of times the password information can be input is 0 (Y in step S308), the input control unit 135 determines that the authentication has failed and accepts the operation (input) by the operation unit 104. Stop (step S310). As a result, a so-called locked state is established. Further, the input control unit 135 displays a display indicating that the authentication has failed on the display unit 106.

  As described above, according to the present embodiment, when the number of mismatches does not exceed 1, in other words, when the number of mismatches is 1, the password information can be re-input without reducing the number of possible inputs. Is possible. Therefore, when the user enters a password, if the user makes a mistake in entering one digit, the remaining number of inputs until the complete lock does not change, and the mobile phone is not collated due to a mistake in the input of the password. The lock on the phone can be suppressed. Thereby, for example, inconvenience such as complete locking in an unintended manner can be solved, and it is possible to eliminate a psychological pressure on the user of the mobile phone.

  Next, another operation (password information identification method) in the embodiment of the present invention will be described with reference to the flowchart of FIG.

  First, when the user of the mobile phone uses the mobile phone, the keys of the operation unit 104 are operated. This operation is accepted by the main control unit 103. The personal identification information authenticating unit 131 is activated under the control of the main control unit 103 that has accepted the key operation. The activated personal identification information authenticating unit 131 first displays a message for prompting input of personal identification information on the display unit 106 (step S501).

  As described above, by operating the operation unit 104 by the user who has visually recognized the displayed message, for example, a number is input and accepted by the personal identification information authentication unit 131 (step S502). When the input information is received, the password information authentication unit 131 compares the password information stored in the storage unit 105 with the input information. When the comparison is matched and authentication is performed (Y in step S503), the password information authentication unit 131 notifies the main control unit 103 that the authentication has been performed. Receiving this notification, the main control unit 103 ends the authentication operation as the authentication is completed (step S504).

  On the other hand, if the received input information does not match the password information stored in the storage unit 105 (N in step S503), the mismatch number detection unit 132 is stored in the input information character string and the storage unit 105. The number of unmatched portions (number of mismatches) in the character string of the password information is detected (counted) (step S505). For example, when a personal identification number is used, the number of digits that do not match between the input numerical sequence and the numerical sequence of the personal identification number stored in the storage unit 105 is counted. The above is the same as the operation example described using the flowchart of FIG.

  Next, the mismatch number comparison unit 133 determines that the number of mismatches obtained by counting exceeds 1 (step S506). If the number of mismatches does not exceed 1 (N in step S506), in this example, the process proceeds to step S511, and the personal identification information authenticating unit 131 notifies the user that the user has recognized that there was an input error. Output in an identifiable manner. For example, a message that causes the user to recognize that there was an input error such as “There is a mistake in pressing” is displayed on the display unit 106. Thereafter, the process returns to step S502, and the personal identification information authenticating unit 131 waits for the next input.

  On the other hand, when the number of inconsistencies exceeds 1 (Y in step S506), the allowable number of times reduction unit 134 decreases the allowable number of times the password information can be input by 1 (step S507). Next, the input control unit 135 determines the number of times the password information can be input (step S508). If it is confirmed in this determination that the number of possible inputs is not 0 (N in step S508), the input control unit 135 determines the remaining number of input times displayed on the remaining input number display unit 403 of the display unit 106. Decrease by 1 (step S509). Next, the process returns to step S502, and the personal identification information authenticating unit 131 waits for the next input.

  On the other hand, if it is confirmed that the number of times the password information can be input is 0 (Y in step S508), the input control unit 135 determines that the authentication has failed and accepts the operation (input) by the operation unit 104. Stop (step S510). As a result, a so-called locked state is established. Further, the input control unit 135 displays a display indicating that the authentication has failed on the display unit 106.

  In the operation example described with reference to the flowchart of FIG. 5, when the number of mismatches is determined to be 1 in the determination in step S <b> 506, it is used that there was an input error such as “There is a mistake in pressing” before returning to step S <b> 502. A feature is that a message to be recognized by a person is displayed on the display unit 106.

  Also in this example, when the number of mismatches does not exceed 1, in other words, when the number of mismatches is one, the password information can be re-input without reducing the number of times of input. Therefore, when the user enters a password, if the user makes a mistake in entering one digit, the remaining number of inputs until the complete lock does not change, and the mobile phone is not collated due to a mistake in the input of the password. The lock on the phone can be suppressed. In the example described with reference to the flowchart of FIG. 5, when the number of mismatches is one, the user is notified that an input error has occurred. Can be planned. Thereby, for example, inconvenience such as complete locking in an unintended manner can be solved, and it is possible to eliminate a psychological pressure on the user of the mobile phone.

  Note that the above-described mobile phone is configured as a so-called computer device including a CPU, a main storage device, an external storage device, a wireless network connection device, and the like, and the CPU is controlled by a program developed in the main storage device (storage unit 105). By operating, it is possible to realize the functions described above.

  DESCRIPTION OF SYMBOLS 101 ... Antenna, 102 ... Transmission / reception part, 103 ... Main control part, 104 ... Operation part, 105 ... Memory | storage part, 106 ... Display part, 131 ... PIN information authentication part, 132 ... Mismatch number detection part, 133 ... Mismatch number comparison part 134... Input possible number reduction unit, 135... Input control unit.

Claims (4)

In a mobile phone that restricts the acceptance of input by PIN information,
A personal identification information authenticating means for performing authentication by comparing the inputted input information with the personal identification information stored in the storage unit;
A mismatch number detection means for detecting and counting the number of non-matching portions between the input information character string and the password information character string stored in the storage unit;
A mismatch number comparison means for judging that the number of mismatches detected by the mismatch number detection means exceeds 1.
An input possible number reduction unit that reduces the number of times the password information can be input by one by detecting that the number of mismatches by the mismatch number comparison means exceeds 1.
A mobile phone comprising: at least input control means for accepting input of password information until the number of times that the password information can be input becomes zero. The mobile phone according to claim 1, wherein
The personal identification information authenticating unit identifies a message for allowing the user to recognize that there has been an input error when the input possible number reduction unit detects that the number of mismatches by the mismatch number comparison unit is 1. A mobile phone characterized by enabling output. In the personal identification information identification method for restricting acceptance of input of the mobile phone by personal identification information,
A password information authentication step for performing authentication by comparing the input information input and the password information stored in the storage unit;
A mismatch number detection step of detecting and counting the number of unmatched portions between the input information character string and the password information character string stored in the storage unit;
A mismatch number comparison step for determining that the number of mismatches detected exceeds 1;
A possible number of times reduction part that reduces the number of times the password can be entered by detecting that the number of mismatches exceeds 1;
An input control step of accepting input of password information until the number of times that the password information can be input becomes zero. In the personal identification information identification method according to claim 3,
When detecting that the number of mismatches is 1, a password information identification method comprising: outputting to the user a message for allowing the user to recognize that there was an input error.

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