JP2004080080A - Portable telephone with personal authenticating function set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone set with a personal authenticating function which can be set to a security level in response to a using mode. <P>SOLUTION: A portable telephone 100 with the personal authenticating function includes an authenticating method selecting storage unit 13 for selecting at least one personal authenticating method from a plurality of personal authenticating methods and storing the selected authenticating method, an information storage unit 9 for storing input information used for the authenticating method stored in the storage unit 13, a feature extracting unit 10 for extracting the feature information from the input information stored in the storage unit 9 as authenticating information, a feature recorder 11 for previously recording the feature information of the user, and a feature authenticating unit 12 for personal authenticating the user by comparing the feature information previously recorded in recorder 11 with the authenticating information extracted by the extracting unit 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile phone used for a mobile communication system such as a mobile phone and a PHS, and more particularly to a mobile phone with a personal authentication function for preventing unauthorized use by personal authentication.
[0002]
[Prior art]
2. Description of the Related Art In recent years, mobile phones, which have become very popular due to their convenience, have become increasingly multifunctional from transmission and reception of e-mails to Internet shopping due to the inclusion of data communication functions. While electronic payment processing such as purchase and transfer of goods can be performed with a simple operation from a mobile phone, unauthorized use of another user's mobile phone to impersonate the original owner has become a social problem.
[0003]
Conventionally, as a method of authenticating a user of a mobile phone, a method of collating a password input from a keyboard has been generally used. An example of a conventional mobile phone with a personal authentication function will be described below.
[0004]
FIG. 14 is a perspective view showing the appearance of an example of a conventional mobile phone with a personal authentication function. The mobile phone 200 mainly includes a display unit 21 for displaying various character information such as a telephone number, a keyboard 22 for inputting a telephone number and a password, a speaker 23 for outputting voice, a microphone 24 for inputting voice, transmission and reception. And an antenna 25a of a wireless unit 25 that wirelessly transmits and receives information.
[0005]
FIG. 15 is a block diagram showing an electrical configuration of the conventional mobile phone with a personal authentication function shown in FIG. The display unit 21, the keyboard 22, the speaker 23, the microphone 24, and the wireless unit 25 are connected to a telephone unit 26 that controls calling and receiving calls. The content input from the keyboard 22 and the received information are displayed on the display unit 21, and the reception and transmission of a telephone call are performed through the speaker 23 and the microphone 24. In addition, the telephone unit 26 transmits and receives dial information and communication information as wireless signals via the wireless unit 25. The telephone unit 26 is also connected to an information storage unit 27 that stores information such as a telephone number, a password, and voice. The power supply unit 28 supplies power to each of the above units.
[0006]
Next, FIG. 16 is a flowchart showing the flow of the personal authentication operation in the conventional mobile phone with a personal authentication function shown in FIG. First, when the user turns on the power of the mobile phone 200 (step S701), power is supplied to each unit from the power supply unit 28, and each unit starts operating. Next, a message prompting the input of a password is displayed on the display unit 21 (step S702). When the user inputs a password from the keyboard 22 (step S703), the input password is registered in the information storage unit 27 in advance. The password is compared and collated (step S704). Next, it is determined whether or not the input password matches a password registered in advance in the information storage unit 27 (step S705). If the input passwords do not match in step S705, the process returns to step S702, and the user inputs the password again. On the other hand, if the entered passwords match, the user is determined to be a valid user, personal authentication ends (step S706), and the mobile phone 200 can be used (step S707).
[0007]
[Problems to be solved by the invention]
In the personal authentication method of the conventional mobile phone 200 as described above, when a simple numeric string such as a date of birth is set as a password, or when an operation at the time of input is seen, malicious intent is not obtained. There is a problem that an unauthorized person can easily misuse it. For example, a measure to increase the number of digits of the password is conceivable, but it has not been a fundamental solution due to problems such as forgetting the password and inputting errors.
[0008]
Further, as described above, if a mobile phone becomes multifunctional and electronic payment or the like becomes possible, authentication with a conventional password alone is not sufficient, and it is necessary to set a security level according to a usage pattern.
[0009]
Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a mobile phone with a personal authentication function capable of setting a security level according to a usage pattern.
[0010]
[Means for Solving the Problems]
The mobile phone with a personal authentication function according to claim 1, wherein at least one personal authentication method is selected from a plurality of personal authentication methods, and the selected authentication method storage unit stores the selected personal authentication method. An information storage unit that stores input information used for the personal authentication method stored in a storage unit; a feature extraction unit that extracts feature information from the input information stored in the information storage unit as authentication information; A feature recording unit that records the user's feature information, and performs personal authentication of the user by comparing the feature information pre-recorded in the feature recording unit with the authentication information extracted by the feature extraction unit. And a feature authentication unit.
[0011]
According to the mobile phone with the personal authentication function configured as described above, at least one method selected from a plurality of authentication methods for personal authentication is recorded and personal authentication is performed. The user can set the security level according to the usage by selecting the authentication method.
[0012]
According to a second aspect of the present invention, in the mobile phone with the personal authentication function according to the first aspect, the input information is image information.
[0013]
According to the mobile phone with the personal authentication function configured as described above, personal authentication with a high security level based on image information can be performed.
[0014]
According to a third aspect of the present invention, in the mobile phone with the personal authentication function according to the first aspect, the input information is voice information.
[0015]
According to the mobile phone with the personal authentication function configured as described above, personal authentication with a high security level based on voice information can be performed.
[0016]
According to a fourth aspect of the present invention, in the mobile phone with the personal authentication function according to the first aspect, the input information is key input information.
[0017]
According to the mobile phone with the personal authentication function configured as described above, personal authentication with a high security level based on the key input information can be performed.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a mobile phone with a personal authentication function according to the present invention will be described in detail with reference to the drawings. In all the drawings for describing the embodiments, parts having the same functions are denoted by the same reference numerals, and description thereof will not be repeated.
[0019]
(Embodiment 1)
FIG. 1 is a perspective view showing an appearance of a mobile phone with a personal authentication function according to Embodiment 1 of the present invention. The mobile phone 100 with the personal authentication function mainly includes a display unit 1 for displaying various character information such as a telephone number and image information, a keyboard 2 for inputting a telephone number and a password, a speaker 3 for outputting a voice, a voice, , An antenna 5a of a wireless unit 5 described later for wirelessly transmitting and receiving and transmitting and receiving information, and a camera 6 for inputting an image.
[0020]
FIG. 2 is a block diagram showing an electrical configuration of the mobile phone with a personal authentication function according to Embodiment 1 of the present invention. The display unit 1, the keyboard 2, the speaker 3, the microphone 4, the camera 6, and the telephone unit 7 for controlling the outgoing and incoming calls of the telephone are connected to the control unit 8 for controlling the entire mobile phone 100. . The content input from the keyboard 2, the image acquired by the camera 6, the received information, and the like are displayed on the display unit 1, and the transmission and reception of telephone calls and the recording of voice are performed through the speaker 3 and the microphone 4. Further, the telephone unit 7 transmits and receives dial information and communication information by wireless signals via the wireless unit 5. The control unit 8 includes an authentication method selection unit 13 that records one method selected from a plurality of authentication methods for personal authentication, an information storage unit 9 that stores input information used for the one method, and an information storage unit. 9, a feature extracting unit 10 for extracting feature information from the input information stored in the storage unit 9, a feature recording unit 11 for recording the feature information extracted by the feature extracting unit 10 as authentication information, and a feature extracting unit 10 from the input information by the user. It is also connected to a feature authentication unit 12 that performs personal authentication of a user by comparing the extracted feature information with authentication information recorded in advance in a feature recording unit 11, and controls the operation of each unit. Each of the control unit 8, the authentication method selection unit 13, the information storage unit 9, the feature extraction unit 10, the feature recording unit 11, and the feature authentication unit 12 is configured by a microcomputer including, for example, a CPU and a memory. The power supply unit 14 supplies power to the above units.
[0021]
FIG. 3 is a flowchart showing a flow of an authentication method setting operation of the mobile phone with a personal authentication function according to the first embodiment of the present invention. First, when the user operates the keyboard 2 and selects “selection of authentication method” from the operation menu displayed on the display unit 1 (step S101), a plurality of authentication methods are displayed on the display unit 1 (step S101). Step S102). In the first embodiment, four types of authentication methods, “password input”, “image input”, “voice input”, and “key input” are displayed. Next, when the user operates the keyboard 2 and selects any one of a plurality of authentication methods (step S103), the selected authentication method is displayed on the display unit 1 (step S104). Next, it is confirmed whether the authentication method selected by the user is sufficient (step S105). If the user wants to change the authentication method in step S105, the process returns to step S102, and the user selects the authentication method again. On the other hand, if it is acceptable to keep the selected authentication method, the selected authentication method is recorded in the authentication method selection unit 13 (step S106), and the setting of the authentication method ends.
[0022]
Next, the authentication information registration operation will be described with reference to the flowcharts of FIGS. 4 to 7 for each set authentication method.
[0023]
FIG. 4 is a flowchart illustrating the flow of the authentication information registration operation when “password input” is set as the authentication method. First, when the user operates the keyboard 2 and selects “password input” from the operation menu displayed on the display unit 1 (step S201), a message prompting the user to enter a password is displayed on the display unit 1 (step S201). Step S202). Next, when the user inputs a password from the keyboard 2 (step S203), the input password is stored in the information storage unit 9 (step S204). Next, when the user re-enters the password for confirmation from the keyboard 2 (step S205), it is determined whether or not the re-entered password matches the password stored in the information storage unit 9. (Step S206). If the re-entered passwords do not match in step S206, the process returns to step S202, and the user re-enters the password. On the other hand, if the re-input passwords match, the password is recorded as authentication information (characteristic information) in the characteristic recording unit 11 (step S207). After the recording is completed, the password temporarily stored in the information storage unit 9 is erased (step S208), and the registration of the password ends.
[0024]
FIG. 5 is a flowchart showing the flow of the authentication information registration operation when “image input” is set as the authentication method. First, the user operates the keyboard 2 to select “image input” from the operation menu displayed on the display unit 1 (step S211). Next, when the user selects an object to be used for authentication (for example, his / her palm, face, etc.) and shoots with the camera 6 (step S212), the shot image is stored in the information storage unit 9 (step S213). ) Is displayed on the display unit 1 (step S214). Next, feature information (for example, the length of a finger, the position of an eye or a nose, etc.) from the image stored in the information storage unit 9 is extracted by the feature extraction unit 10, and the extracted feature information is used as the authentication information. Is recorded in the feature recording unit 11 (step S215). To extract the characteristic information, a known image recognition and image processing method can be used. Next, when the user shoots the same image again, characteristic information is similarly extracted (step S216). Next, the feature authentication unit 12 compares the feature information extracted from the image photographed again with the authentication information recorded in the feature recording unit 11 and determines whether or not they match (step S217). In step S217, if the feature information extracted from the image captured again does not match, the process returns to step S212, and the user captures the image again. On the other hand, if the feature information extracted from the image photographed again matches, the image information temporarily stored in the information storage unit 9 is deleted (step S218), and the registration of the image information ends. It is preferable that the target of the authentication image is information unique to the user, such as a palm or a face.
[0025]
FIG. 6 is a flowchart showing the flow of the authentication information registration operation when “voice input” is set as the authentication method. First, the user operates the keyboard 2 to select "voice input" from the operation menu displayed on the display unit 1 (step S221). Next, when the user inputs voice (for example, words, songs, etc.) used for authentication from the microphone 4 (step S222), the input voice is stored in the information storage unit 9 (step S223), and Playback is performed (step S224). Next, feature information (for example, voiceprint, intonation, etc.) is extracted from the voice stored in the information storage unit 9 by the feature extraction unit 10, and the extracted feature information is recorded in the feature recording unit 11 as authentication information. Is performed (step S225). For the extraction of the feature information, a known speech recognition and speech processing method can be used. Next, when the user inputs the same voice again, the characteristic information is similarly extracted (step S226). Next, the feature authentication unit 12 compares the feature information extracted from the re-input voice with the authentication information recorded in the feature recording unit 11 and determines whether or not they match (step S227). In step S227, if the feature information extracted from the input voice again does not match, the process returns to step S222, and the user inputs the voice again. On the other hand, if the feature information extracted from the input voice again matches, the voice information temporarily stored in the information storage unit 9 is deleted (step S228), and the registration of the voice information ends. Note that the authentication voice is preferably user-specific information such as a voice uttered by the user.
[0026]
FIG. 7 is a flowchart showing the flow of the authentication information registration operation when “key input” is set as the authentication method. First, the user operates the keyboard 2 to select "key input" from the operation menu displayed on the display unit 1 (step S231). Next, when the user performs a key input (for example, input of an arbitrary number string) used for authentication from the keyboard 2 (step S232), the key input information is stored in the information storage unit 9 (step S233). . Next, feature information (for example, input speed, rhythm, etc.) is extracted from the key input information stored in the information storage unit 9 by the feature extraction unit 10, and the extracted feature information is used as the authentication information in the feature recording unit. 11 (step S234). A known detection method can be used for extracting the characteristic information. Next, when the user performs the same key input again, characteristic information is similarly extracted (step S235). Next, the feature authentication unit 12 compares the feature information extracted from the repeated key input with the authentication information recorded in the feature recording unit 11 and determines whether or not they match (step S236). . In step S236, if the feature information extracted from the repeated key input does not match, the process returns to step S232, and the user performs the key input again. On the other hand, if the feature information extracted from the repeated key input matches, the key input information temporarily stored in the information storage unit 9 is deleted (step S237), and the registration of the key input information ends.
[0027]
Next, FIG. 8 is a flowchart showing the flow of the personal authentication operation of the mobile phone with the personal authentication function according to Embodiment 1 of the present invention at the start of use after the setting of the authentication method and the registration of the authentication information are completed. is there. First, when the user turns on the power of the mobile phone 100 (step S301), power is supplied from the power supply unit 14 to each unit, and each unit starts operating. Next, the authentication method recorded in the authentication method selection unit 13 is specified (step S302), and a message prompting input of information corresponding to the specified authentication method is displayed on the display unit 1 (step S303). Next, when the user inputs information corresponding to the specified authentication method (step S304), feature information is extracted from the input information by the feature extracting unit 10 (step S305), and the feature authenticating unit 12 is extracted. Then, the extracted feature information is compared with the authentication information recorded in the feature recording unit 11 in advance and collated (step S306). Next, it is determined whether or not the extracted feature information matches the authentication information recorded in the feature recording unit 11 in advance (step S307). If the extracted feature information does not match in step S307, the process returns to step S303, and the user inputs information again. On the other hand, if the extracted feature information matches, the user is determined to be a legitimate user, personal authentication ends (step S308), and the mobile phone 100 can be used (step S309). It is preferable that the authentication process be forcibly terminated and the power of the mobile phone 100 turned off when the authentication has failed in the predetermined number of times in step S307.
[0028]
According to such a mobile phone with a personal authentication function according to the first embodiment, one method selected from a plurality of authentication methods for personal authentication is recorded and personal authentication is performed. The user can select an authentication method and set a security level according to the usage mode. In addition, not only passwords, but also information that is difficult for others to copy, such as image information, audio information, and key input information, are used as authentication information, so that personal authentication with a high security level can be performed.
[0029]
(Embodiment 2)
Next, a mobile phone with a personal authentication function according to Embodiment 2 of the present invention will be described. The mobile phone with a personal authentication function according to the second embodiment is characterized in that the authentication method selection unit 13 according to the first embodiment is replaced with an authentication method combination selection unit 15 that records a combination of a plurality of authentication methods.
[0030]
Since the appearance of the mobile phone with a personal authentication function according to the second embodiment is the same as that of the first embodiment, illustration and description are omitted.
[0031]
FIG. 9 is a block diagram illustrating an electrical configuration of a mobile phone with personal authentication function 100a according to the second embodiment. As compared with the above-described first embodiment, the configuration is such that the authentication method selection unit 13 in the first embodiment is replaced with an authentication method combination selection unit 15. The authentication method combination selection unit 15 records a combination of at least two authentication methods selected from a plurality of authentication methods for personal authentication. The other components are the same as those in the first embodiment, and thus the description thereof is omitted.
[0032]
FIG. 10 is a flowchart showing a flow of an authentication method setting operation of the mobile phone with a personal authentication function according to the second embodiment. First, when the user operates the keyboard 2 and selects “select combination of authentication methods” from the operation menu displayed on the display unit 1 (step S401), a plurality of authentication methods are displayed on the display unit 1. (Step S402). In the second embodiment, four types of authentication methods of “password input”, “image input”, “voice input”, and “key input” are displayed. Next, when the user operates the keyboard 2 and selects any one of a plurality of authentication methods (step S403), the selected authentication method is displayed on the display unit 1 (step S404). Next, it is confirmed whether or not the authentication is completed by the authentication method selected by the user (step S405). When selecting the second authentication method in step S405, the process returns to step S402, and the user similarly selects the second authentication method. When the procedure from step S402 to step S405 is repeated an arbitrary number of times and a plurality of authentication methods are selected and confirmed, the selected plurality of authentication methods are recorded in the authentication method combination selection unit 15 (step S406), and the authentication method is set. Ends.
[0033]
The authentication information registration operation is the same as that in the first embodiment (see the flowcharts in FIGS. 4 to 7), and thus the description is omitted.
[0034]
Next, FIG. 11 is a flowchart showing a flow of the personal authentication operation at the time of starting use after the setting of a plurality of authentication methods and the registration of the authentication information are completed in the mobile phone with a personal authentication function according to the second embodiment. is there. First, when the user turns on the power of the mobile phone 100a (step S501), power is supplied from the power supply unit 14 to each unit, and each unit starts operating. Next, the authentication method recorded in the authentication method combination selection unit 15 is specified (step S502), and a message prompting input of information corresponding to the specified authentication method is displayed on the display unit 1 (step S503). Next, when the user inputs information corresponding to the specified authentication method (step S504), feature information is extracted from the input information by the feature extracting unit 10 (step S505). The extracted feature information is compared with the feature information recorded in advance in the feature recording unit 11 and collated (step S506). Next, it is determined whether or not the extracted feature information matches the feature information recorded in the feature recording unit 11 in advance (step S507). If the extracted feature information does not match in step S507, the process returns to step S503, and the user inputs information again. On the other hand, if the extracted feature information matches, it is determined that the authentication is successful in the first authentication method, and it is determined whether the authentication has been performed for all of the plurality of recorded authentication methods (step S508). If there is any authentication method that has not been executed in step S508, the process returns to step S502, and the user inputs information corresponding to the second authentication method. The procedure from step S502 to step S508 is repeated by the number of registered authentication methods. If the authentication is successful in all the authentication methods, the personal authentication ends (step S509), and the mobile phone 100a can be used (step S509). Step S510). It should be noted that, if the authentication has failed in the predetermined number of times in step S507, it is preferable that the authentication process is forcibly terminated and the power of the mobile phone 100a is turned off.
[0035]
According to such a mobile phone with a personal authentication function according to the second embodiment, a plurality of methods selected from a plurality of authentication methods for personal authentication are recorded and personal authentication is performed. The user can select a combination of a plurality of authentication methods and set the security level according to the usage pattern. Since not only passwords but also information that is difficult for others to copy, such as image information, audio information, and key input information, are used as authentication information, personal authentication with a higher security level can be performed.
[0036]
(Embodiment 3)
Next, a mobile phone with a personal authentication function according to Embodiment 3 of the present invention will be described. The mobile phone with a personal authentication function according to the third embodiment includes an encryption unit 16 for encrypting payment information and authentication information when transmitting the same.
[0037]
The appearance of the mobile phone with a personal authentication function according to the third embodiment is the same as that of the first embodiment, so that illustration and description are omitted.
[0038]
FIG. 12 is a block diagram illustrating an electrical configuration of a mobile phone with personal authentication function 100b according to the third embodiment. As compared with the above-described second embodiment, the configuration of the second embodiment is such that an encryption unit 16 connected to the control unit 8 is added to the configuration of the second embodiment. The encryption unit 16 encrypts authentication information and payment information used for authentication at a communication destination at the time of electronic payment. A known encryption method can be used for the encryption. Other configurations of the respective units are the same as those of the second embodiment, and a description thereof will be omitted.
[0039]
FIG. 13 is a flowchart showing a flow of a personal authentication operation at a communication destination at the time of electronic payment in the mobile phone with a personal authentication function according to the third embodiment. First, when the user turns on the power of the mobile phone 100b (step S601), power is supplied from the power supply unit 14 to each unit, and each unit starts operating. Next, when the user inputs contents and conditions necessary for settlement from the keyboard 2 (step S602) and dials the settlement destination, dial information is transmitted from the wireless unit 5 and communication is established (step S603). Next, an authentication method used for settlement is set from the authentication methods recorded in the authentication method combination selection unit 15 (step S604). Next, authentication information corresponding to the set authentication method is read out from the plurality of pieces of authentication information recorded in the feature recording unit 11, and the authentication information and the payment information are encrypted by the encryption unit 16 ( Step S605). Next, the encrypted information is transmitted from the wireless unit 5 to the settlement destination (step S606).
[0040]
At the settlement destination, the encrypted information is received (step S607), decrypted and returned to the original information (step S608). Next, the authentication information obtained as a result of the decryption is compared with the authentication information registered in advance in the settlement destination and collated (step S609). Next, it is determined whether or not the authentication information obtained as a result of the decryption matches the authentication information registered in advance at the settlement destination (step S610). In step S610, if the authentication information obtained as a result of the decryption matches, the sender is determined to be a valid user, and a payment process is executed (step S611). On the other hand, if the authentication information obtained as a result of the decryption does not match, the sender is determined to be an unauthorized user, the payment process is stopped (step S612), and the fact that the authentication has failed is returned to the mobile phone 100b (step S612). S613), the process ends.
[0041]
According to such a mobile phone with a personal authentication function according to the third embodiment, since authentication information and payment information are encrypted when transmitted, it is possible to prevent leakage of such information due to wiretapping of a wireless signal. Can be.
[0042]
【The invention's effect】
As is apparent from the above description, according to the mobile phone with a personal authentication function of the present invention, at least one method selected from a plurality of authentication methods for personal authentication is recorded, and personal authentication is performed. , The user can set the security level according to the usage mode by selecting the authentication method.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an appearance of a mobile phone with a personal authentication function according to Embodiment 1 of the present invention.
FIG. 2 is a block diagram showing an electrical configuration of the mobile phone with a personal authentication function according to the first embodiment of the present invention.
FIG. 3 is a flowchart showing a flow of an authentication method setting operation of the mobile phone with a personal authentication function according to the first embodiment of the present invention.
FIG. 4 is a flowchart showing the flow of an authentication information registration operation when “password input” is set as an authentication method.
FIG. 5 is a flowchart illustrating a flow of an authentication information registration operation when “image input” is set as an authentication method.
FIG. 6 is a flowchart illustrating a flow of an authentication information registration operation when “voice input” is set as an authentication method.
FIG. 7 is a flowchart illustrating a flow of an authentication information registration operation when “key input” is set as an authentication method.
FIG. 8 is a flowchart showing the flow of a personal authentication operation at the start of use after setting of an authentication method and registration of authentication information are completed.
FIG. 9 is a block diagram showing an electrical configuration of a mobile phone with a personal authentication function according to the second embodiment of the present invention.
FIG. 10 is a flowchart showing a flow of an authentication method setting operation of the mobile phone with a personal authentication function according to the second embodiment of the present invention.
FIG. 11 is a flowchart showing a flow of a personal authentication operation at the start of use after setting of a plurality of authentication methods and registration of authentication information are completed.
FIG. 12 is a block diagram showing an electrical configuration of a mobile phone with a personal authentication function according to Embodiment 3 of the present invention.
FIG. 13 is a flowchart showing a flow of a personal authentication operation at a communication destination at the time of electronic payment in the mobile phone with a personal authentication function according to the third embodiment of the present invention.
FIG. 14 is a perspective view showing an appearance of an example of a conventional mobile phone with a personal authentication function.
FIG. 15 is a block diagram showing an electrical configuration of the conventional mobile phone with a personal authentication function shown in FIG.
FIG. 16 is a flowchart showing a flow of a personal authentication operation in the conventional mobile phone with a personal authentication function shown in FIG.
[Explanation of symbols]
1 Display
2 keyboard
3 Speaker
4 microphone
5 Radio section
6 Camera
7 telephone department
8 Control part
9 Information storage unit
10 Feature extractor
11 Feature recording unit
12 Feature authentication unit
13 Authentication method selection section
14 Power supply section
15 Authentication method combination selector
16 Encryption unit
100, 100a, 100b Mobile phone with personal authentication function

Claims (4)

An authentication method selection storage unit that selects at least one personal authentication method from a plurality of personal authentication methods and stores the selected personal authentication method;
An information storage unit that stores input information used for the personal authentication method stored in the authentication method selection storage unit,
A feature extraction unit that extracts feature information from the input information stored in the information storage unit as authentication information,
A feature recording unit that records user feature information in advance;
A feature authentication unit that performs personal authentication of a user by comparing the feature information pre-recorded in the feature recording unit with the authentication information extracted by the feature extraction unit;
A mobile phone with a personal authentication function, comprising: The mobile phone with a personal authentication function according to claim 1, wherein the input information is image information. 2. The mobile phone with a personal authentication function according to claim 1, wherein the input information is voice information. The mobile phone with a personal authentication function according to claim 1, wherein the input information is key input information.

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