JP2015079315A - Authentication system, authentication method, program, and computer-readable recording medium with the program recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an authentication system, an authentication method, a program, and a computer-readable recording medium with the program recorded thereon for accurately identifying a caller.SOLUTION: An authentication system 1 includes: a recording device 21 that records voiceprint information of a registrant, and terminal identification information of a registrant terminal; acquisition means 221 that receives voice information of a caller, and terminal identification information of a caller terminal 3; conversion means 222 that converts the voice information of the caller into the voiceprint information; and determination means 223 that collates the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal 3, and collates the voiceprint information of the registrant with the voiceprint information of the caller.

Description

  The present invention relates to an authentication system, an authentication method, a program, and a computer-readable recording medium on which the program is recorded.

  In recent years, the damage caused by “transfer fraud” using a telephone such as a mobile phone to transfer a large amount of cash has increased rapidly. Various measures have been taken to reduce or eliminate such damage. In particular, check the caller's voiceprint against the voiceprint of the registrant who registered the voiceprint information in advance, authenticate whether the caller is a registrant, and grasp the call from a suspicious caller It is effective.

  As an authentication system for collating a caller and a registrant, a voiceprint registration database storing voiceprint data corresponding to a telephone, a first telephone set and a second telephone set established by a call from the first telephone set Route detection means for detecting a route in a telephone network of call connection with the telephone, and voice acquisition for acquiring voice data transmitted from the first telephone to the second telephone from the path detected by the path detection means Means and voiceprint matching means for referring to the voiceprint data corresponding to the second telephone stored in the voiceprint registration database and for matching the voiceprint of the voiceprint data with the voiceprint of the voice data acquired by the voice acquisition means; Are known (for example, see Patent Document 1).

JP 2000-324230 A.

  However, in the authentication system as described above, the voice of the caller is caused by, for example, aging of the caller due to the characteristic of the voice transmission of the telephone that the high voice and the low voice are compressed and only the middle voice is used. Has changed, it becomes difficult for the voiceprint of the voiceprint data of the voiceprint data stored in the voiceprint registration database to be matched with the voiceprint of the voice data, and the collation accuracy may be lowered.

  Therefore, a technical problem to be solved in order to accurately identify the sender is generated, and the present invention aims to solve this problem.

  The present invention proposes to achieve the above object, and the invention according to claim 1 is directed to a registrant registered in advance in the receiver terminal when the receiver terminal receives an incoming call from the sender terminal. Is an authentication system for collating the verification information of the caller with the collated information of the caller, the recording means for recording the voiceprint information of the registrant and the terminal identification information of the registrant terminal, the voice information of the caller, and the transmission A means for receiving the terminal identification information of the user terminal, a conversion means for converting the voice information of the sender to voiceprint information, the terminal identification information of the registrant terminal and the terminal identification information of the sender terminal. An authentication system comprising: determination means for collating the voiceprint information of the registrant and the voiceprint information of the sender.

  According to this configuration, in addition to collation by voiceprint information, by collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, the voice information of the caller is pre-registered due to aging etc. Even if it is a case where it changes from, authentication with a sender and a registrant can be implemented accurately.

  The invention according to claim 2 provides an authentication system including a notification means for notifying the collation result of the determination means in addition to the configuration of the invention according to claim 1.

  According to this configuration, since the collation result is notified, the receiver can recognize the call from the suspicious person.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect of the invention, the acquisition means includes an automatic voice transmission unit that transmits an automatic voice response call to the caller terminal, and a call for the automatic voice response call. There is provided an authentication system comprising: a voice information receiving unit that receives the voice information of the caller according to the voice input of the person.

  According to this configuration, when a call is received from the caller terminal, the caller's voice information can be received without answering the call. Therefore, the caller receives a call from a suspicious person before the receiver answers the call. Can be recognized.

  According to a fourth aspect of the invention, in addition to the configuration of the first aspect of the invention, the terminal identification information of the registrant terminal is a telephone number of the registrant terminal, and the caller The terminal identification information of the terminal provides an authentication system that is the telephone number of the caller terminal.

  According to this configuration, in addition to collation of the caller's voiceprint data and the registrant's voiceprint data, it is determined whether or not the telephone number of the caller terminal matches the telephone number of the registrant terminal registered in advance. This makes it possible to accurately authenticate the caller and the registrant.

  According to a fifth aspect of the invention, in addition to the configuration of the first aspect of the invention, the terminal identification information of the registrant terminal is a non-contact type IC incorporated in the registrant terminal. It is a manufacturing number, and the terminal identification information of the caller terminal provides an authentication system that is a manufacturing number of a non-contact type IC incorporated in the caller terminal.

  According to this configuration, in addition to collation of the caller's voiceprint data and the registrant's voiceprint data, the non-contact IC serial number built into the caller terminal and the preregistered registrant terminal are incorporated. Further, by determining whether or not the manufacturing number of the non-contact type IC matches, authentication of the sender and the registrant can be performed with high accuracy.

  The invention according to claim 6 is an authentication method in which when the receiver terminal receives an incoming call from the caller terminal, the verification information of the registrant registered in advance in the receiver terminal is matched with the checkee information of the caller. A recording step of recording the voiceprint information of the registrant and terminal identification information of the registrant terminal, an acquisition step of receiving the voice information of the sender and the terminal identification information of the sender terminal, A conversion step of converting voice information into voiceprint information, terminal identification information of the registrant terminal and terminal identification information of the caller terminal are collated, and the voiceprint information of the registrant and the voiceprint information of the caller are collated And a determination step.

  According to this configuration, in addition to collation by voiceprint information, by collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, the voice information of the caller is pre-registered due to aging etc. Even if it is a case where it changes from, authentication with a sender and a registrant can be implemented accurately.

  The invention according to claim 7 is an authentication system for collating collation information of a registrant pre-registered in the receiver terminal with collated information of the caller when the receiver terminal receives a call from the caller terminal. A recording step for recording the voice print information of the registrant and terminal identification information of the registrant terminal; and an acquisition step of receiving the voice information of the caller and the terminal identification information of the caller terminal. A step of converting the caller's voice information into voiceprint information, and collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, and the registrant's voiceprint information and the caller And a determination step of collating with the voiceprint information.

  According to this configuration, in addition to collation by voiceprint information, by collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, the voice information of the caller is pre-registered due to aging etc. Even if it is a case where it changes from, the authentication system which implements authentication with a sender | caller and a registrant with high precision can be performed.

  The invention described in claim 8 provides a computer-readable recording medium in which a program for executing the authentication system described in claim 7 is recorded.

  According to this configuration, in addition to collation by voiceprint information, by collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, the voice information of the caller is pre-registered due to aging etc. Even if it is a case where it changes from, the authentication system which implements authentication with a sender | caller and a registrant with high precision can be performed.

  The authentication system and the authentication method according to the present invention can accurately perform authentication between the caller and the registrant even when the voice information of the caller is slightly changed from the previous registration due to aging or the like. .

  In addition, the program according to the present invention or the recording medium on which this program is recorded can accurately authenticate the caller and the registrant even when the voice information of the caller changes slightly from the previous registration due to aging or the like. A well implemented authentication system can be implemented.

The block diagram which shows the authentication system which concerns on one Example of this invention. The flowchart which shows the procedure of an authentication process.

  In order to achieve the object of accurately identifying the caller, the authentication system according to the present invention, when the receiver terminal receives an incoming call from the caller terminal, collation information of the registrant registered in advance in the receiver terminal Is an authentication system for collating the caller's collated information with the recording unit for recording the voiceprint information of the registrant and the terminal identification information of the registrant terminal, the voice information of the caller, and the terminal identification information of the caller terminal , Receiving means, conversion means for converting voice information of the caller into voiceprint information, terminal identification information of the registrant terminal and terminal identification information of the caller terminal are collated, and the voiceprint information of the registrant and the caller And a determination means for collating the voiceprint information.

  In addition, the authentication method according to the present invention, in order to achieve the purpose of accurately identifying the caller, when the receiver terminal receives an incoming call from the caller terminal, the registrant registered in advance in the receiver terminal. An authentication method for collating collation information with information to be collated by a caller, a recording step for recording voice print information of a registrant and terminal identification information of a registrant terminal, voice information of the caller, and a terminal of the caller terminal An acquisition step of receiving identification information, a conversion step of converting voice information of the caller into voiceprint information, terminal identification information of the registrant terminal and terminal identification information of the caller terminal are collated, and the voiceprint information of the registrant And a determination step of collating with the voiceprint information of the sender.

  In addition, the program according to the present invention, when the receiver terminal receives an incoming call from the caller terminal, in order to achieve the purpose of accurately identifying the caller, the verification of the registrant registered in advance in the receiver terminal A program for executing an authentication system for collating information and information to be collated with a caller, a recording step for recording voice print information of a registrant and terminal identification information of a registrant terminal, voice information of the caller, and The registration step of receiving the terminal identification information of the caller terminal, the conversion step of converting the voice information of the caller into voiceprint information, the terminal identification information of the registrant terminal and the terminal identification information of the caller terminal are collated and registered This is realized by including a determination step of collating the voiceprint information of the sender and the voiceprint information of the sender.

  Hereinafter, an authentication system 1 according to an embodiment of the present invention will be described with reference to FIG.

  The authentication system 1 includes a recipient terminal 2 and a sender terminal 3 that can communicate with the recipient terminal 2.

  First, a specific configuration of the receiver terminal 2 will be described with reference to the drawings.

  The receiver terminal 2 is a mobile phone used by the receiver, and includes a recording device 21, a control device 22, a communication device 23, a display 24 as a display device, and a touch panel 25 as an operation device. Yes.

  The storage device 21 is an external storage device that stores programs and various data necessary for the operation of the receiver terminal 2, and can use, for example, a semiconductor storage medium such as a flash memory or any other recording medium. .

  The storage device 21 includes a collation information database (hereinafter referred to as “collation information DB”) 21 a as a recording unit. The collation information DB 21a stores in advance registrant voiceprint data as collation information and terminal identification information of the registrant terminal. The “registrant voice print data” is, for example, voice print information obtained by converting the voice information of a registrant input via a microphone or the like based on a probability model such as a Hidden Markov Model (HHM). It is. “Terminal identification information of the registrant terminal” is information specific to the registrant terminal among information on the registrant terminal used by the registrant. For example, the telephone number of the registrant terminal, the serial number of the registrant terminal, registration At least one of the location information of the subscriber terminal, the manufacturing number of the contactless IC (for example, Felica (registered trademark) of Sony Corporation), the name of the registrant, the address of the registrant, etc. Any device can be used as long as it can identify the registrant terminal including the.

  The control device 22 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown). The recipient terminal 2 can be operated by executing a program stored in a ROM or the like. Note that the program may be stored in a computer-readable storage medium that is separable from the recipient terminal 2. The control device 22 includes an acquisition unit 221, a conversion unit 222, a determination unit 223, and a notification unit 224.

  When the receiver terminal 2 receives a call from the caller terminal 3, the acquiring unit 221 receives the later-described caller's voice information and the terminal identification information of the caller terminal 3 received by the communication device 23 from the caller terminal 3. To do. The acquisition unit 221 includes an automatic voice transmission unit 221a, a voice information reception unit 221b, and a terminal identification information reception unit 221c.

  The automatic voice transmission unit 221a makes an automatic voice response call in response to an incoming call from the recipient terminal 2. The “automatic voice response call” refers to, for example, automatically responding to an incoming call from the caller terminal 3 and transmitting voice guidance to the caller terminal 3. The content of the voice guidance is to urge the caller to issue a predetermined message.

  The voice information reception unit 221b acquires the caller's voice information corresponding to the caller's voice input for the automatic voice response call transmitted from the automatic voice transmission unit 221a.

  The terminal identification information receiving unit 221 c acquires the terminal identification information of the caller terminal 3 received by the automatic voice transmission unit 221 a from the caller terminal 3 when a call is received from the caller terminal 3.

  The conversion means 222 converts the caller's voice information acquired by the voice information receiving unit 221b into the caller's voiceprint information as the checked information. The conversion from voice information to voiceprint information is performed based on a probability model such as a hidden Markov model, for example.

The determination unit 223 collates the terminal identification information of the registrant terminal stored in the registrant information DB 21a with the terminal identification information of the caller terminal 3 acquired by the voice information receiving unit 221b, and the caller terminal 3 and the registrant. It is determined whether or not the terminal is the same.
Further, the determination unit 223 compares the registrant's voice print information stored in the registrant information DB 21a with the caller's voice print information converted by the conversion unit 222, and determines whether or not the caller and the registrant are the same. Determine.
Note that the collation of the voiceprint information and the collation of the terminal identification information may be performed at the same time, or may be performed after either one is performed in advance.

  The notification unit 224 displays the collation result of the determination unit 223 on the display 24. The collation result displays, for example, the matching rate between the registrant's voice print information and the caller's voice print information, and displays the match or mismatch between the registrant terminal's terminal identification information and the caller terminal 3's terminal identification information. The notification of the collation result by the notification unit 24 may be displayed on the display 24 in real time or may be displayed after the call ends.

  The communication device 23 communicates various types of information with the caller terminal 3 in a wireless or wired manner.

  The display 24 is controlled by the control device 22. As the display 24, for example, a liquid crystal display, an organic EL display, or the like may be used.

  The touch panel 25 is disposed on the display 24 and accepts a recipient's input operation with respect to the soft keys displayed on the display 24. The touch panel 25 only needs to be capable of detecting touch input, and may be any one of a capacitance method, a resistance film method, an acoustic pulse recognition method, an ultrasonic surface acoustic wave method, an infrared light shielding method, an image recognition method, and the like. It doesn't matter. The operation device may be, for example, a hard key corresponding to input information or a voice input method corresponding to a recipient's voice input.

  Next, a specific configuration of the caller terminal 3 will be described based on the drawings.

  The caller terminal 3 is a mobile phone used by the caller, and includes a recording device 31, a control device 32, a communication device 33, a display 34 as a display device, a touch panel 35 as an operation device, and a voice input device. And an audio microphone 36.

  The storage device 31 is an external storage device that includes a program and various data necessary for the operation of the caller terminal 3. For example, a semiconductor storage medium such as a flash memory and other arbitrary recording media can be used.

  In the collation information database (hereinafter referred to as “collation information DB”) 31 a of the storage device 31, terminal identification information of the caller terminal 3 as the collation information is stored. The “terminal identification information of the caller terminal” is information unique to the caller terminal 3 in the information related to the caller terminal 3. For example, the telephone number of the caller terminal 3, the manufacturing number of the caller terminal 3, GPS The location information of the caller terminal 3 obtained by the above, the manufacturing number of the contactless IC (for example, Felica (registered trademark) of Sony Corporation), the name of the caller, Any device can be used as long as it can identify the caller terminal 3 including at least one such as an address.

  The control device 32 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown). The registrant terminal 3 can be operated by executing a program stored in a ROM or the like. Note that the program may be stored in a computer-readable storage medium that is separable from the registrant terminal 3.

  The control device 32 transmits the terminal identification information of the caller terminal 3 recorded in the collated information DB 31a to the receiver terminal 2 via the communication device 33 at the time of telephone transmission to the receiver terminal 2. An information transmission unit 321 is provided.

  The communication device 33 communicates various information with the receiver terminal 2 wirelessly or by wire.

  The display 34 is controlled by the control device 32. As the display 34, for example, a liquid crystal display, an organic EL display, or the like may be used.

  The touch panel 35 is disposed on the display 34 and accepts a recipient's input operation with respect to the soft keys displayed on the display 34. The touch panel 25 only needs to be capable of detecting touch input, and may be any one of a capacitance method, a resistance film method, an acoustic pulse recognition method, an ultrasonic surface acoustic wave method, an infrared light shielding method, an image recognition method, and the like. It doesn't matter. The operation device may be, for example, a hard key corresponding to input information or a voice input method corresponding to a recipient's voice input.

  The voice microphone 36 receives a caller's voice input and generates voice information. The audio information is transmitted to the recipient terminal 2 via the communication device 33.

  The authentication system 1 includes collation information generating means for generating registrant voiceprint information as collation information and terminal identification information of the registrant terminal. In the present embodiment, the control device 32 of the caller terminal 3 includes: Collation information generating means 322 is provided. The collation information generation unit 322 includes a conversion unit 322a and a terminal identification information setting unit 322b. In addition, you may provide a collation information production | generation means in the receiver terminal 2, the sender | caller terminal 3, and another terminal.

  The conversion unit 322a converts the voice input of the caller as the registrant obtained via the voice microphone 36 into the voice print information of the registrant based on a probability model such as a hidden Markov model.

  The terminal identification information setting unit 322b sets the terminal identification information of the registrant terminal from the information regarding the caller terminal 3 stored in the storage device 31. The terminal identification information of the registrant terminal can be arbitrarily selected by the registrant. For example, information of the caller terminal 3 displayed on the display 34 (telephone number, location information, non-contact IC manufacturing number, etc.) From the touch panel 35, the selected information is set as the terminal identification information of the registrant terminal. When the verification information generating means is provided in the receiver terminal 2 or other terminals, the registrant directly inputs the terminal identification information of the registrant terminal on the terminal.

  The registrant voiceprint information and the terminal identification information of the registrant terminal as verification information are transmitted to the receiver terminal 2 via the communication device 33 and stored in the verification information DB 21a of the receiver terminal 2.

  Next, an authentication method in which the receiver terminal 2 receives an incoming call from the sender terminal 3 and collates the registrant verification information with the sender verification information will be described with reference to FIG.

  First, the registrant's voiceprint information as collation information and the terminal identification information of the registrant terminal are stored in advance in the registrant information DB 21a of the receiver terminal 2 (S1). The registrant's voice print information is obtained by converting the voice input of the caller as the registrant obtained through the voice microphone 36 into the registrant's voice print information by the conversion unit 322a. As the terminal identification information of the registrant terminal, the terminal identification information of the registrant terminal as collation information is arbitrarily selected from the information regarding the sender terminal 3 as the registrant terminal stored in the storage device 31 via the terminal identification information setting unit 322b. Set to The registrant voiceprint information and the terminal identification information of the registrant terminal are transmitted to the receiver terminal 2 via the communication device 33 and stored in the registrant information DB 21a.

  When the receiver terminal 2 receives a call from the caller terminal 3 (S2), the determination unit 223 of the receiver terminal 2 receives the terminal of the caller terminal 2 received from the terminal identification information transmission unit 321 via the communication device 23. It is checked whether or not the identification information matches the terminal identification information of the registrant terminal recorded in the verification information DB 21a, and it is determined whether or not the registrant terminal and the caller terminal 3 are the same (S3).

  The notification means 224 displays the verification result on the display 24 and notifies it (S4). The collation result displayed on the display 24 displays, for example, characters or symbols indicating whether the telephone number, the manufacturing number of the non-contact type IC, the position information, and the like match each other.

  In response to the collation result, when the receiver responds to the incoming call from the caller terminal 3, that is, when the control device 22 detects an operation input to the touch panel 25 according to the telephone response by the receiver, the receiver terminal 2 The automatic voice transmission unit 221a transmits voice guidance to the caller terminal 3 by an automatic voice response call (S5).

  When the caller responds to the voice guidance with voice input to the voice microphone 36, the voice information acquisition unit 221b of the receiver terminal 2 receives the voice information of the caller via the communication device 23 (S6). The voice information of the caller received by the voice information receiving unit 221b is converted into voiceprint information by the conversion means 222 (S7).

  The determination unit 223 collates the registrant's voice print information stored in the collation information DB 21a with the caller's voice print information converted by the conversion unit 222 based on the caller's voice information. It is determined whether or not they are the same (S8).

  The notifying unit 224 displays a collation result obtained by collating the registrant's voice print information and the caller's voice print information on the display 24 (S9). The voiceprint information collation result is displayed, for example, as a number, a graph, a signal, or the like at the rate at which the registrant's voiceprint information matches the sender's voiceprint information.

  In this embodiment, after collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal 3, the registrant voiceprint information is collated with the caller voiceprint information. However, these collations may be performed simultaneously or one of the collations may be performed in advance.

  As described above, according to the present invention, in addition to collation by voiceprint information, collation of terminal identification information of a registrant terminal and terminal identification information of a caller terminal 3 is performed, so that voice information of the caller is obtained due to aging and the like. Even when is changed from the time of pre-registration, authentication between the caller and the registrant can be performed with high accuracy.

  In addition, since the verification result is notified, the receiver can recognize the call from the suspicious person. Furthermore, when a call is received from the caller terminal 3, the caller's voice information can be received without answering the call, so that the receiver recognizes the call from the suspicious person before the caller answers the call. be able to.

  The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

DESCRIPTION OF SYMBOLS 1 ... Authentication system 2 ... Receiver terminal 21 ... Storage device 21a ... Collation information DB
22 ... Control device 221 ... Acquisition means 221a ... Automatic voice transmission unit 221b ... Voice information reception unit 221c ... Terminal identification information reception unit 222 ... Conversion unit 223 ... Determination unit 224 ... notification means 23 ... communication device 24 ... display 25 ... touch panel 3 ... caller terminal 31 ... storage device 32 ... control device 321 ... terminal identification information transmission unit 322 ... collation information generating means 322a ... conversion unit 322b ... terminal identification information setting unit 33 ... communication device 34 ... display 35 ... touch panel 36 ... voice microphone

Claims (8)

When the receiver terminal receives an incoming call from the caller terminal, an authentication system for checking the collator information registered in advance in the receiver terminal and the collated information of the caller,
Recording means for recording the registrant voiceprint information and the terminal identification information of the registrant terminal;
Obtaining means for receiving the caller's voice information and the terminal identification information of the caller terminal;
Conversion means for converting the caller's voice information into voiceprint information;
A means for collating the terminal identification information of the registrant terminal with the terminal identification information of the caller terminal, and collating the voiceprint information of the registrant and the voiceprint information of the caller;
An authentication system characterized by comprising:   The authentication system according to claim 1, further comprising a notification unit that notifies the collation result of the determination unit. The acquisition means includes
An automatic voice transmitter for transmitting an automatic voice response call to the caller terminal;
A voice information receiving unit that receives the caller's voice information corresponding to the caller's voice input for the automatic voice response call;
The authentication system according to claim 2, further comprising: The terminal identification information of the registrant terminal is a telephone number of the registrant terminal,
The authentication system according to any one of claims 1 to 3, wherein the terminal identification information of the caller terminal is a telephone number of the caller terminal. The terminal identification information of the registrant terminal is a serial number of a non-contact IC incorporated in the registrant terminal,
The authentication system according to any one of claims 1 to 3, wherein the terminal identification information of the caller terminal is a serial number of a non-contact type IC incorporated in the caller terminal. When the receiver terminal receives an incoming call from the caller terminal, an authentication method for checking the collator information registered in advance in the receiver terminal and the collated information of the caller,
A recording step of recording the registrant's voiceprint information and the terminal identification information of the registrant terminal;
An acquisition step of receiving voice information of the caller and terminal identification information of the caller terminal;
Converting the voice information of the caller into voiceprint information;
A step of collating terminal identification information of the registrant terminal and terminal identification information of the caller terminal, and collating the voiceprint information of the registrant and the voiceprint information of the caller;
The authentication method characterized by including. When a receiver terminal receives an incoming call from a caller terminal, a program for executing an authentication system for checking collation information of a registrant registered in advance in the receiver terminal and collated information of a caller ,
A recording step for recording the registrant voiceprint information and terminal identification information of the registrant terminal;
Receiving the voice information of the caller and terminal identification information of the caller terminal; and
Converting the voice information of the caller into voiceprint information;
A step of collating terminal identification information of the registrant terminal and terminal identification information of the caller terminal, and collating the voiceprint information of the registrant and the voiceprint information of the caller;
The program characterized by including.   A computer-readable recording medium on which a program for executing the authentication system according to claim 7 is recorded.

Images