JP2016051430A - Authentication system and image forming apparatus to be used for the same authentication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an authentication system for which any unique operation such as a gesture is not required.SOLUTION: An authentication system 100 includes a portable terminal 200 and electronic equipment 300 which can wirelessly communicate with each other. The portable terminal 200 includes an operation detection part for detecting the operation of the portable terminal 200. Also, the portable terminal 200 holds first authentication information. The electronic equipment 300 holds second authentication information to be used for user authentication. The electronic equipment 300 requests the transmission of movement information from the portable terminal 200. The portable terminal 200 transmits the movement information corresponding to the output of the operation detection part. The electronic equipment 300 requests the transmission of the first authentication information in accordance with the movement information transmitted from the portable terminal 200. The portable terminal 200 transmits the first authentication information. The electronic equipment 300 determines whether or not second authentication information corresponding to the first authentication information transmitted from the portable terminal 200 is held, and performs authentication on the basis of the result of determination.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an authentication system and an image forming apparatus used in the authentication system.

  An image forming apparatus such as a multifunction peripheral is often used by an unspecified number of people. For this reason, an increasing number of image forming apparatuses have an authentication function. The authentication function is given to the image forming apparatus for the purpose of permitting only a specific person to use the image forming apparatus.

  As authentication methods, keyboard login, card login, simple login for selecting an icon, billing login for inserting a coin, and the like are generally known.

  In an image forming apparatus having a simple login function, an ID (identification information) and a password are registered in association with an icon. When logging in, the user logs in by selecting an icon displayed on the screen. Thus, according to the simple login function, an operation (action) that the user has to perform for login (authentication) can be simplified. However, since the image forming apparatus can be used only by the user selecting an icon displayed on the screen, the security level is weakened. If it is necessary to input a password or the like in addition to selecting an icon in order to increase the security level, the number of steps until login increases.

  On the other hand, card login is an authentication method with few steps until authentication and a high security level. However, a specific operation of holding the card over the image forming apparatus is required.

  Patent Document 1 proposes an authentication method that uses a user's gesture as authentication information in order to achieve a high security level. The authentication method disclosed in Patent Document 1 is an authentication method for logging in to a portable terminal, and uses an acceleration sensor equipped in the portable terminal. For example, a signal output from the acceleration sensor when the portable terminal is shaken twice in succession is registered as authentication information. In this case, the user can log in by shaking the portable terminal twice in succession.

JP 2013-140415 A

  However, in the authentication method disclosed in Patent Document 1, the user needs to make a gesture for authentication. The authentication method disclosed in Patent Document 1 can be used for a small electronic device such as a portable terminal, but is used for an electronic device that cannot be carried such as an image forming apparatus. I can't.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an authentication system that does not require a specific operation such as holding a card or a gesture, and has a high security level, and an image forming apparatus used in the authentication system.

  An authentication system according to the present invention includes a portable terminal and an electronic device capable of wireless communication with each other. The portable terminal includes an operation detection unit, a first authentication information holding unit, a movement information transmission processing unit, and an authentication information transmission processing unit. The operation detection unit detects an operation of the portable terminal. The first authentication information holding unit holds first authentication information. The movement information transmission processing unit executes a process of transmitting movement information corresponding to the output of the motion detection unit in response to a request from the electronic device. The authentication information transmission processing unit executes a process of transmitting the first authentication information in response to a request from the electronic device. The electronic device includes a second authentication information holding unit, a movement information request processing unit, an authentication information request processing unit, and an authentication unit. The second authentication information holding unit holds second authentication information used for user authentication of the electronic device. The movement information request processing unit executes processing for requesting transmission of the movement information. The authentication information request processing unit executes processing for requesting transmission of the first authentication information according to the movement information transmitted from the portable terminal. The authentication unit determines whether or not the second authentication information holding unit holds second authentication information corresponding to the first authentication information transmitted from the portable terminal. Based on authentication.

  The image forming apparatus according to the present invention can wirelessly communicate with a portable terminal. The image forming apparatus includes an image forming unit, an authentication information holding unit, a movement information request processing unit, an authentication information request processing unit, and an authentication unit. The image forming unit performs an image forming operation on the recording medium. The authentication information holding unit holds authentication information used for user authentication. The movement information request processing unit executes a process for requesting transmission of movement information based on the operation of the portable terminal. The authentication information request processing unit executes processing for requesting transmission of authentication information held by the portable terminal in accordance with the movement information transmitted from the portable terminal. The authentication unit determines whether or not the authentication information holding unit holds authentication information corresponding to authentication information transmitted from the portable terminal, and performs authentication based on a result of the determination.

  ADVANTAGE OF THE INVENTION According to this invention, it can authenticate without utilizing the operation | movement of holding a card | curd and the specific operation | movement like a gesture, and can aim at the strengthening of a security level.

It is a figure which shows the authentication system which concerns on embodiment of this invention. It is a block diagram of the portable terminal which concerns on embodiment of this invention. 1 is a block diagram of an image forming apparatus according to an embodiment of the present invention. It is a flowchart of the authentication process which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  FIG. 1 is a diagram showing an authentication system according to the present embodiment. As illustrated in FIG. 1, the authentication system 100 includes a portable terminal 200 and an image forming apparatus 300 that is an example of an electronic device.

  The authentication system 100 is a system used for authentication processing by the image forming apparatus 300. The image forming apparatus 300 has an authentication function, and a user carrying the portable terminal 200 approaches the image forming apparatus 300 and stops in front of the image forming apparatus 300 to authenticate the user. Specifically, when the image forming apparatus 300 detects that the user has stopped in front of the image forming apparatus 300, the image forming apparatus 300 requests the portable terminal 200 held by the user to transmit authentication information. When the authentication information received from the portable terminal 200 matches the authentication information registered in advance in the image forming apparatus 300, the image forming apparatus 300 becomes available.

  The portable terminal 200 transmits movement information and authentication information based on the operation of the portable terminal 200 to the image forming apparatus 300. The image forming apparatus 300 detects that the user has stopped in front of the image forming apparatus 300 by receiving the movement information from the portable terminal 200.

  Transmission of movement information and authentication information by the portable terminal 200 is performed by wireless communication. That is, the portable terminal 200 and the image forming apparatus 300 are equipped with the same wireless communication interface, and the portable terminal 200 and the image forming apparatus 300 can communicate with each other by wireless communication. Although the wireless communication method is not particularly limited, authentication is performed only for a user who has stopped near the image forming apparatus 300 (so that a user far away from the image forming apparatus 300 is not subject to authentication). As a wireless communication method, it is preferable to adopt a short-range wireless communication method such as Bluetooth (registered trademark). In the present embodiment, wireless communication by the short-range wireless communication method is performed between the portable terminal 200 and the image forming apparatus 300. The range (communication area) in which wireless communication is possible is, for example, a range of 1 m to 5 m in radius with the image forming apparatus 300 as the center.

  Next, the configuration of the portable terminal 200 will be described with reference to FIG. FIG. 2 is a block diagram of the portable terminal 200. As illustrated in FIG. 2, the portable terminal 200 includes a communication unit 210, an acceleration sensor 220 that is an example of an operation detection unit, a storage unit 230, and a control unit 240.

  The portable terminal 200 is a portable electronic device on which the communication unit 210 and the acceleration sensor 220 are mounted. For example, the portable terminal 200 is a mobile phone, a smartphone (multifunctional mobile phone), a tablet terminal such as a tablet PC, or a notebook PC. obtain.

  The communication unit 210 is a short-range wireless communication system wireless communication interface, and the portable terminal 200 can communicate with an electronic device in which the same wireless communication interface is mounted. In the present embodiment, the communication unit 210 is a wireless communication interface of the same method as the wireless communication interface implemented in the image forming apparatus 300.

  The acceleration sensor 220 generates a signal corresponding to the operation of the portable terminal 200. The portable terminal 200 detects the movement state of the portable terminal 200 from the output of the acceleration sensor 220 and transmits movement information of the portable terminal 200 to the image forming apparatus 300.

  The storage unit 230 (corresponding to an example of a first authentication information holding unit) includes a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), and the like. The storage unit 230 stores an authentication application 231 and first authentication information 232. The storage unit 230 further stores a control program (including firmware and applications other than the authentication application 231) necessary for controlling the operation of the portable terminal 200, setting information such as parameters, and the like.

  The authentication application 231 is a program that causes the portable terminal 200 to execute an operation necessary for authentication processing by the authentication system 100 (authentication processing by the image forming apparatus 300). The first authentication information 232 is account information used for login (user authentication) of the portable terminal 200, and for example, any one of the user name, ID, and password, or two of them. Information combining two or more.

  The control unit 240 reads the control program held by the storage unit 230 and executes the control program to control the operation of the entire portable terminal 200. In addition, the control unit 240 reads the authentication application 231 held by the storage unit 230 and executes the authentication application 231. Accordingly, the control unit 240 functions to include the movement information transmission processing unit 241 and the authentication information transmission processing unit 242.

  In response to a request from the image forming apparatus 300, the movement information transmission processing unit 241 executes processing for transmitting movement information corresponding to the output of the acceleration sensor 220 (a signal corresponding to the operation of the portable terminal 200). Through this transmission process, movement information based on the operation of the portable terminal 200 is transmitted to the image forming apparatus 300 via the communication unit 210. The movement information is transmitted when the user carrying the portable terminal 200 enters the communication area of the image forming apparatus 300.

  In the present embodiment, the movement information transmission processing unit 241 includes, as movement information of the portable terminal 200, a predetermined signal (first predetermined signal) corresponding to the shaking of the portable terminal 200 and the shaking of the portable terminal 200. A process of transmitting a predetermined signal (second predetermined signal) corresponding to the stop is executed. That is, the portable terminal 200 is shaken while the user carrying the portable terminal 200 is walking. Further, when the user carrying the portable terminal 200 stops, the shaking of the portable terminal 200 stops (stops). Therefore, while it is detected from the output of the acceleration sensor 220 that the portable terminal 200 is shaking, it can be considered that the portable terminal 200 is moving. Therefore, the first predetermined signal corresponding to the shaking of the portable terminal 200 indicates that the portable terminal 200 is moving. Further, when it is detected from the output of the acceleration sensor 220 that the shaking of the portable terminal 200 is stopped, the movement of the portable terminal 200 can be regarded as stopped. Therefore, the second predetermined signal corresponding to the stop of shaking of the portable terminal 200 indicates that the movement of the portable terminal 200 has stopped.

  In the present embodiment, a short-range wireless communication method is employed as a wireless communication method performed between the portable terminal 200 and the image forming apparatus 300. Therefore, the first predetermined signal indicates that the user who carries the portable terminal 200 is moving around the image forming apparatus 300, and the second predetermined signal is the user who carries the portable terminal 200. This shows that the camera has stopped near the image forming apparatus 300.

  The authentication information transmission processing unit 242 executes a process of transmitting the first authentication information 232 in response to a request from the image forming apparatus 300. Specifically, when the authentication information transmission processing unit 242 is requested to transmit the first authentication information 232 from the image forming apparatus 300, the authentication information transmission processing unit 242 reads the first authentication information 232 held in the storage unit 230 and reads the image via the communication unit 210. A process of transmitting the first authentication information 232 to the forming apparatus 300 is executed.

  Next, the configuration of the image forming apparatus 300 will be described with reference to FIG. FIG. 3 is a block diagram of the image forming apparatus 300. The image forming apparatus 300 can be, for example, a copying machine, a printing machine, or a multifunction machine. As illustrated in FIG. 3, the image forming apparatus 300 includes a communication unit 310, an operation panel 320, an image forming unit 330, a storage unit 340, and a control unit 350.

  The communication unit 310 is a short-range wireless communication system wireless communication interface, and the image forming apparatus 300 can communicate with an electronic device in which the same wireless communication interface is mounted. In the present embodiment, the communication unit 310 is a wireless communication interface of the same method as the wireless communication interface implemented in the portable terminal 200.

  The operation panel 320 includes an input device 321 such as a button and a display device 322 such as an LCD (Liquid Crystal Display). When the user operates the input device 321, the image forming apparatus 300 executes processing corresponding to the operation. A user can cause the image forming apparatus 300 to execute various processes via the input device 321. The display device 322 displays various information. The display device 322 may be a touch panel. In this case, the display device 322 also functions as an input device. Therefore, when a touch panel is provided as the display device 322, the input device 321 such as a button may be omitted.

  The image forming unit 330 performs an image forming operation on a recording medium such as paper. The image forming unit 330 may be, for example, an electrophotographic image forming unit or an inkjet image forming unit.

  The storage unit 340 (corresponding to an example of a second authentication information holding unit) includes a ROM, a RAM, an HDD, and the like. The storage unit 340 stores an authentication application 341 and second authentication information 342. The storage unit 340 further stores a control program (including firmware and applications other than the authentication application 341) necessary for controlling the operation of the image forming apparatus 300, setting information such as parameters, and the like.

  The authentication application 341 is a program that causes the image forming apparatus 300 to perform operations necessary for authentication processing by the authentication system 100 (authentication processing by the image forming apparatus 300). The second authentication information 342 is account information used for login (user authentication) of the image forming apparatus 300. For example, any one of the user name, the ID, and the password, or two of them are used. Information combining two or more. In the present embodiment, first authentication information 232 held by the portable terminal 200 is registered in advance as the second authentication information 342.

  When the communication unit 310 receives the first authentication information 232 transmitted from the portable terminal 200 when the authentication information is registered, the image forming apparatus 300 stores the first authentication information 232 as the second authentication information 342 in the storage unit 340. Remember (register). Alternatively, the image forming apparatus 300 causes the storage unit 340 to store (register) the first authentication information 232 input by the user via the input device 321 as the second authentication information 342 when registering the authentication information.

  The control unit 350 reads out a control program held by the storage unit 340 and executes the control program, thereby controlling the overall operation of the image forming apparatus 300. Further, the control unit 350 reads the authentication application 341 held by the storage unit 340 and executes the authentication application 341. Thus, the control unit 350 functions to include an authentication information conversion unit 351, a movement information request processing unit 352, an authentication information request processing unit 353, an authentication unit 354, and a state determination unit 355.

  When the control unit 350 receives the first authentication information 232 transmitted from the portable terminal 200 via the communication unit 310, the authentication information conversion unit 351 compares the first authentication information 232 with the second authentication information 342. Can be converted into encoded information. That is, generally, the data format (encoding format) that can be processed by the control unit 350 of the image forming apparatus 300 is the data format (encoding format) that can be processed by the control unit 240 of the portable terminal 200. Different. Therefore, it is necessary to convert the encoding format of the first authentication information 232 transmitted from the portable terminal 200 into an encoding format that can be processed by the control unit 350 of the image forming apparatus 300 by the authentication information conversion unit 351. . When the encoding format of the first authentication information 232 transmitted from the portable terminal 200 is an encoding format that can be compared with the second authentication information 342, the function of the authentication information conversion unit 351 is omitted. Also good.

  The movement information request processing unit 352 executes processing for requesting the portable terminal 200 to transmit movement information based on the operation of the portable terminal 200. That is, a signal (electromagnetic wave) requesting transmission of movement information is transmitted to the outside through the communication unit 310. In the present embodiment, the movement information request processing unit 352 executes a process for requesting transmission of movement information until the authentication process is started. Accordingly, when the portable terminal 200 enters the communication area of the image forming apparatus 300, the image forming apparatus 300 is requested to transmit movement information. In addition, the movement information request processing unit 352 resumes the process of requesting transmission of movement information when the user authentication fails or when the user logs out from the image forming apparatus 300.

  The authentication information request processing unit 353 executes processing for requesting transmission of the first authentication information 232 held by the portable terminal 200 according to the movement information transmitted from the portable terminal 200. That is, a signal (electromagnetic wave) requesting transmission of the first authentication information 232 is transmitted to the portable terminal 200 via the communication unit 310.

  In the present embodiment, the control unit 350 receives the first predetermined signal (the signal corresponding to the shaking of the portable terminal 200) as the movement information, and then responds to the stop of the second predetermined signal (the shaking of the portable terminal 200). The authentication information request processing unit 353 executes a process for requesting transmission of the first authentication information 232. That is, in the present embodiment, the short-range wireless communication method is adopted as the wireless communication method performed between the portable terminal 200 and the image forming apparatus 300. Therefore, the image forming apparatus 300 detects that the user carrying the portable terminal 200 is moving around the image forming apparatus 300 based on the first predetermined signal, and then uses the second predetermined signal to detect the portable terminal. When it is detected that the user carrying 200 is stopped near the image forming apparatus 300, the transmission of the first authentication information 232 is requested.

  The authentication unit 354 determines whether or not the storage unit 340 holds the second authentication information 342 corresponding to the first authentication information 232 transmitted from the portable terminal 200, and authenticates based on the determination result. I do. As a result, when the second authentication information 342 that matches the first authentication information 232 held by the portable terminal 200 is registered in the image forming apparatus 300 in advance, the user who carries the portable terminal 200 is authorized. Authenticated as a user. That is, the authentication of the user by the authentication unit 354 is successful. On the other hand, if the second authentication information 342 that matches the first authentication information 232 held by the portable terminal 200 is not registered in the image forming apparatus 300 in advance, the authentication of the user by the authentication unit 354 fails.

  The state determination unit 355 determines whether or not to put the image forming apparatus 300 in a use-permitted state (usable state) based on the authentication result by the authentication unit 354. Specifically, when the authentication of the user by the authentication unit 354 is successful, the state determination unit 355 changes the state of the image forming apparatus 300 to the use permission state (login). Thereby, for example, execution of the image forming operation by the image forming unit 330 is permitted. Therefore, the user can form an image on a recording medium such as paper using the image forming apparatus 300. On the other hand, when the user authentication by the authentication unit 354 fails, the state determination unit 355 does not change the state of the image forming apparatus 300 to the use permission state. Therefore, the user cannot use the image forming apparatus 300.

  Next, the flow of authentication processing in the authentication system 100 will be described with reference to FIG. FIG. 4 is a flowchart of the authentication process according to the present embodiment.

  When activated, the image forming apparatus 300 starts processing for detecting shaking of the portable terminal 200 (step S401). Alternatively, the image forming apparatus 300 may start processing for detecting shaking of the portable terminal 200 by operating the operation panel 320. Specifically, the movement information request processing unit 352 included in the control unit 350 of the image forming apparatus 300 executes processing for requesting transmission of movement information of the portable terminal 200. This process is repeated until the authentication process is started (No in step S401).

  When a user carrying the portable terminal 200 approaches the image forming apparatus 300 and enters the communication area of the image forming apparatus 300, the portable terminal 200 displays movement information as an image in response to a request from the image forming apparatus 300. Transmit to the forming apparatus 300. Specifically, when the control unit 240 of the portable terminal 200 receives a signal requesting transmission of movement information, the movement information transmission processing unit 241 included in the control unit 240 performs the first operation based on the output of the acceleration sensor 220. A process of transmitting a predetermined signal (a signal corresponding to shaking of the portable terminal 200) is executed. Thereby, the image forming apparatus 300 detects the shaking of the portable terminal 200 (Yes in step S401). That is, the image forming apparatus 300 detects that the user is moving around the image forming apparatus 300 by receiving the first predetermined signal. Further, when the control unit 350 of the image forming apparatus 300 receives the first predetermined signal transmitted from the portable terminal 200, a partner to which the image forming apparatus 300 is connected by wireless communication is specified.

  When the image forming apparatus 300 detects the shaking of the portable terminal 200 (Yes in step S401), the image forming apparatus 300 determines whether or not the shaking stop of the portable terminal 200 is detected (step S402). Specifically, even after the control unit 350 of the image forming apparatus 300 receives the first predetermined signal transmitted from the portable terminal 200, the movement information request processing unit 352 included in the control unit 350 A process for requesting transmission of movement information is executed. When the user carrying the portable terminal 200 stops within the communication area of the image forming apparatus 300, the movement information transmission processing unit 241 included in the control unit 240 of the portable terminal 200 is based on the output of the acceleration sensor 220. Then, it detects that the shaking of the portable terminal 200 has stopped, and executes a process of transmitting a second predetermined signal (a signal corresponding to the stopping of shaking of the portable terminal 200). When receiving the second predetermined signal transmitted as the movement information from the portable terminal 200, the control unit 350 of the image forming apparatus 300 determines that the shaking stop of the portable terminal 200 has been detected (Yes in step S402). In other words, the image forming apparatus 300 detects that the user has stopped near the image forming apparatus 300 by receiving the second predetermined signal.

  When the control unit 350 of the image forming apparatus 300 detects that the wireless connection with the portable terminal 200 is released without receiving the second predetermined signal, the stop of shaking of the portable terminal 200 is not detected. (No in step S402). That is, the image forming apparatus 300 detects that a user carrying the portable terminal 200 has passed through the communication area of the image forming apparatus 300. As a result, the process returns to step S401, and the process of detecting shaking of the portable terminal 200 is resumed.

  When the image forming apparatus 300 detects the stop of shaking of the portable terminal 200 (Yes in step S402), the image forming apparatus 300 executes a process of acquiring the first authentication information 232 held by the portable terminal 200 (step S403). It is determined whether or not the first authentication information 232 has been received from the type terminal 200 (step S404). Specifically, the authentication information request processing unit 353 included in the control unit 350 of the image forming apparatus 300 executes processing for requesting transmission of the first authentication information 232.

  When the control unit 350 of the image forming apparatus 300 receives the first authentication information 232 (Yes in step S404), the authentication information conversion unit 351 included in the control unit 350 converts the first authentication information 232 into the second authentication information 342. Convert into encoded information that can be compared. Then, the authentication unit 354 included in the control unit 350 performs authentication processing using the converted first authentication information 232. That is, the authentication unit 354 determines whether or not the first authentication information 232 matches the second authentication information 342 registered in advance in the image forming apparatus 300 (step S405). This determination is performed by determining whether the storage unit 340 holds the second authentication information 342 corresponding to the first authentication information 232 received by the control unit 350.

  When the control unit 350 cannot receive the first authentication information 232 (No in Step S404), the authentication of the user by the authentication unit 354 fails (Step S407). Therefore, in this case, the user cannot use the image forming apparatus 300.

  If the first authentication information 232 matches the second authentication information 342 registered in advance in the image forming apparatus 300 (Yes in step S405), the authentication unit 354 succeeds in authenticating the user (step S406). As a result, the user can use the image forming apparatus 300. On the other hand, when the first authentication information 232 does not match the second authentication information 342 registered in advance in the image forming apparatus 300 (No in step S405), the authentication unit 354 fails to authenticate the user (step S407). ). Therefore, in this case, the user cannot use the image forming apparatus 300.

  According to the authentication system 100 described above, when the user walks and approaches the image forming apparatus 300, the image forming apparatus 300 is connected to the acceleration sensor 220 mounted on the portable terminal 200 carried by the user. In cooperation, “swaying” of the portable terminal 200 is detected. When the user stops near the image forming apparatus 300, the image forming apparatus 300 detects the “stop of shaking” of the portable terminal 200 in cooperation with the acceleration sensor 220. The image forming apparatus 300 acquires the first authentication information 232 held by the portable terminal 200 when detecting “shake stop” after detecting “shake”.

  Therefore, according to this embodiment, the user carries the portable terminal 200 holding the first authentication information 232, approaches the image forming apparatus 300 to be used, and stops in front of the image forming apparatus 300. Thus, the authentication process is executed. Accordingly, the user can log in to the image forming apparatus 300 and use the image forming apparatus 300 without performing a specific operation such as a gesture or a gesture of holding a card. In addition, since authentication information held by the portable terminal 200 is transmitted to the image forming apparatus 300 by wireless communication and authentication is executed, the security level can be enhanced. Furthermore, the authentication system 100 can be used for an electronic device that cannot be carried, such as the image forming apparatus 300.

  The embodiment of the present invention has been described above with reference to FIGS. However, the present invention is not limited to the above-described embodiment, and can be implemented in various modes without departing from the gist thereof.

  For example, in the embodiment according to the present invention, the authentication system 100 has been described by taking the image forming apparatus 300 as an example. However, the electronic device that can be used in the authentication system 100 is not limited to the image forming apparatus 300, for example, a desktop PC Any electronic device having an authentication function such as a stationary electronic computer such as a portable computer or a portable electronic computer such as a notebook PC may be used.

  In the embodiment according to the present invention, the first authentication information 232 is account information used for user authentication of the portable terminal 200. However, as the first authentication information 232, the authentication system 100 (by the image forming apparatus 300). Authentication information unique to the authentication process may be registered in the portable terminal 200.

  In the embodiment according to the present invention, the movement information transmission processing unit 241 transmits the first predetermined signal corresponding to the shaking of the portable terminal 200 as the process of transmitting movement information based on the operation of the portable terminal 200. Is executed, a process of transmitting a second predetermined signal corresponding to the stop of shaking of the portable terminal 200 is executed. However, the movement information transmission processing unit 241 performs a predetermined process corresponding to the stop of shaking of the portable terminal 200. You may perform only the process which transmits a signal.

  In the embodiment according to the present invention, the control unit 350 of the image forming apparatus 300 functions as the authentication information conversion unit 351 by executing the authentication application 341. However, the control unit 350 executes another program. Thus, the authentication information conversion unit 351 may function.

  The present invention is useful for an electronic apparatus having an authentication function, such as an image forming apparatus or a personal computer.

100 Authentication System 200 Portable Terminal 220 Acceleration Sensor 230 Storage Unit 241 Movement Information Transmission Processing Unit 242 Authentication Information Transmission Processing Unit 300 Image Forming Apparatus 340 Storage Unit 352 Movement Information Request Processing Unit 353 Authentication Information Request Processing Unit 354 Authentication Unit

Claims (7)

An authentication system comprising a portable terminal and an electronic device capable of wireless communication with each other,
The portable terminal is
An operation detector for detecting the operation of the portable terminal;
A first authentication information holding unit for holding first authentication information;
In response to a request from the electronic device, a movement information transmission processing unit that executes a process of transmitting movement information corresponding to the output of the operation detection unit;
An authentication information transmission processing unit that executes a process of transmitting the first authentication information in response to a request from the electronic device,
The electronic device is
A second authentication information holding unit for holding second authentication information used for user authentication of the electronic device;
A movement information request processing unit for executing processing for requesting transmission of the movement information;
An authentication information request processing unit that executes processing for requesting transmission of the first authentication information in accordance with the movement information transmitted from the portable terminal;
It is determined whether or not the second authentication information holding unit holds second authentication information corresponding to the first authentication information transmitted from the portable terminal, and authentication is performed based on the determination result. An authentication system comprising an authentication unit.   The authentication system according to claim 1, wherein the movement information transmission processing unit executes a process of transmitting a signal corresponding to stoppage of shaking of the portable terminal as the process of transmitting the movement information.   The movement information transmission processing unit transmits a signal corresponding to the stop of shaking of the portable terminal after executing a process of transmitting a signal corresponding to shaking of the portable terminal as the process of transmitting the movement information The authentication system according to claim 1, wherein the authentication system executes processing.   The authentication system according to claim 1, wherein the first authentication information is authentication information used for user authentication of the portable terminal.   5. The authentication system according to claim 1, wherein the electronic device further includes a conversion unit that converts the first authentication information into encoded information that can be compared with the second authentication information.   The authentication system according to claim 1, wherein the electronic device is an image forming apparatus. An image forming apparatus capable of wireless communication with a portable terminal,
An image forming unit that performs an image forming operation on a recording medium;
An authentication information holding unit for holding authentication information used for user authentication;
A movement information request processing unit that executes processing for requesting transmission of movement information based on the operation of the portable terminal;
An authentication information request processing unit that executes processing for requesting transmission of authentication information held by the portable terminal in accordance with the movement information transmitted from the portable terminal;
An authentication unit that determines whether or not the authentication information holding unit holds authentication information corresponding to the authentication information transmitted from the portable terminal, and performs authentication based on a result of the determination. Forming equipment.

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