KR20030046276A - Electronic Key For An Authentication And Apparatus For Control Using It And Method For Opening And Closing A Door Using It - Google Patents

Abstract

The present invention relates to an electronic key capable of authenticating a user, a control device using the same, and a door opening / closing method. The electronic key performing a user authentication process according to a user's fingerprint input and various information with the electronic key are opened and closed. Not only to provide a control device for the purpose, but also to provide a door opening and closing method using the electronic key and the control device. To this end, the present invention provides an electronic key of a detachable door opening and closing system comprising an electronic key including a power source and a control device, comprising: input means for receiving fingerprint information or various control codes; Control means for transmitting the control code to the control device, performing a user authentication process by comparing the fingerprint information received from the control device with the fingerprint information input from the input means, and transmitting the result to the control device; And transmitting and receiving means for transmitting various kinds of information to the control apparatus or receiving various kinds of information from the control apparatus under the control of the control means.

Description

Electronic Key For An Authentication And Apparatus For Control Using It And Method For Opening And Closing A Door Using It}

The present invention relates to an electronic key capable of user authentication, a control device using the same, and a door opening and closing method.

In general, the door opening and closing system currently used is mainly made of metal keys. In addition, a button-type door opening and closing system that can input a password, a door opening and closing system using various electronic keys, and biometric information such as fingerprint and iris can be used. Used door opening and closing systems are being used.

In particular, in the door opening and closing system using fingerprint information, the receiving unit for receiving fingerprint information is not only integrated with a control device for user authentication and door opening and closing, but also an electronic key for receiving a user's fingerprint and user authentication and door opening and closing. Various kinds of things are widely used, such as a separate type of control device for controlling the separation.

In this case, in the case of the integrated type, all user authentication processes are performed in the integrated door opening and closing system, and even in the case of the separate type, the electronic key simply receives the user's fingerprint information and transmits it to the control device. The user authentication process is performed in the control device. Accordingly, in the detachable door opening and closing system, when a fingerprint algorithm used for the door is to be changed, not only a control device having an expensive installation cost needs to be replaced, but also a plurality of accompanying electronic keys must be replaced.

In other words, although the construction cost of the control device in the door opening and closing system is required a lot, if you want to introduce a more complete and security-enhanced fingerprint algorithm, there is a problem that the control device must be replaced at a high cost.

In addition, since both the fingerprint authentication algorithm and the fingerprint information of the user are managed by the control device, there is a problem in that it is vulnerable in security.

The present invention is to solve the above problems, and provides an electronic key for performing a user authentication process according to the user's fingerprint input and a control device for opening and closing the door by exchanging various information with the electronic key, the electronic It is an object of the present invention to provide a door opening and closing method using a key and a control device.

1 is a configuration diagram of an embodiment of a detachable door opening and closing system according to the present invention.

2a to 2e is a flow chart of an embodiment of the door opening and closing method according to the present invention.

3 is an exemplary view of a data structure applied to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, the control device generally refers to a device for opening and closing a door installed in a building, but is not limited thereto, and includes a device for opening and closing a door such as a car or a safe. In addition, as described above, not only for opening and closing of a specific device, but also including a device for starting a vehicle or a motorcycle. However, hereinafter, for convenience of description, a method of opening and closing the door will be described as an example.

1 is a configuration diagram of an embodiment of a detachable door opening and closing system according to the present invention, which includes a fingerprint authentication algorithm and compares fingerprint information input from a user with fingerprint information transmitted from a control device to perform a user authentication process. The electronic key 10 (hereinafter, simply referred to as "electronic key") for authentication and various types of information including electronic key information are received from the electronic key, and accordingly, the user of the electronic key after transmitting the fingerprint information of the corresponding user. The control apparatus 20 for opening and closing a door according to the authentication result is shown.

First, the electronic key 10 for authentication will be described in detail with reference to the drawings.

As shown in the figure, the electronic key 10 for authentication according to the present invention includes fingerprint information, user information, electronic key information, additional information (member number, social security number, department information, position information, etc.) and various control codes (opened). / Close / authorization, etc.), an input unit 11 for receiving input, a storage unit 13 for storing the input information, a control code transmitted to the control device, and fingerprint information received from the control device and inputted from the input unit. The control unit 14 for comparing the fingerprint information and performing a user authentication process, and then transmits the result to the control device, and transmits various information to the control device under control of the control unit, or receives various information from the control device. And a transmission / reception section 15, an output section 16 for outputting signals according to various controls, and a power supply section 12 for supplying power required for each section.

In this case, although not shown in the drawing, the input unit 11 may include a fingerprint input window, a registration button, an open button, a close button, a delegation authority button, a delegation authority button, and the like for receiving a user fingerprint. In particular, the fingerprint input window is composed of various sensors and semiconductor chips so as to recognize the fingerprint information input by the user.

On the other hand, the output unit 16 is to inform the user of various types of information under the control of the control unit 14, the user to the fingerprint authentication approval information, fingerprint authentication impossible information, authority delegation setting information, door opening and closing information, etc. It can be configured as LED or small speaker so that it can be seen through sight or hearing.

On the other hand, the control unit 14 transmits the information (MAC information) of the electronic key to the control device when the user inputs the fingerprint for opening and closing the door, and the user fingerprint information registered with the electronic key from the control device After receiving and comparing the fingerprint information received through the input unit 11 with the received fingerprint information, the user authentication process is performed and the result is transmitted to the control device 20. In addition, when the user wants to delegate authority, the controller 14 performs a procedure according to authority delegation.

Next, the control device 20 will be described in detail with reference to the drawings.

As shown in the figure, the control device 20 according to the present invention is composed of three parts. That is, various random numbers are generated when electronic key information, control code information, additional information, etc. are transmitted from the electronic key 10 through the transmission / reception unit 30 for transmitting and receiving various information with the electronic key 10. And a control unit 50 and a control device for transmitting fingerprint information of a user registered with the received electronic key to the electronic key together with the random number, receiving user authentication result information from the electronic key, and performing an operation accordingly. It is comprised including the opening-closing part 40 for opening / closing (or starting) a door according to a signal.

At this time, the detailed configuration of the control unit 50, the interface 51 for transmitting and receiving various information with the transceiver 30, the power supply 53 for supplying the necessary power in the control unit, the transceiver, the switching unit, and the control device, A storage 54 for storing electronic key information, user fingerprint information, additional information, etc., and analyzes the user's control code and electronic key information received from the electronic key through the interface and generates random numbers accordingly. A controller 52 for reading the user fingerprint information registered as a key from the storage device and transmitting it to the electronic key together with the random number, and generating information for opening and closing the door according to the authentication result transmitted from the electronic key. According to the door opening and closing result and the authentication disallowed information transmitted to the outside of the control device, Communication device 56 is configured, including an input tool (57) for inputting the output unit 55 and the information necessary for outputting a result of various visual or audible response to the control of the controller.

On the other hand, the opening and closing portion 40 is to open and close the various doors, including a driver 42 for driving under the control of the controller 50 and the switch 41 for opening and closing the door according to the driving direction and state of the driver. Consists of. At this time, when the control device is to control the device for starting as described above, the opening and closing part 40 should be replaced with the devices according to the start, in this case the starting device is to use a general starting device for the present invention The description will be omitted.

Hereinafter, a door opening and closing method according to the present invention will be described in detail with reference to FIGS. 1 and 2A to 2D and FIG. 3.

2A to 2E are flowcharts of an embodiment of a door opening and closing method according to the present invention, and FIG. 3 is an exemplary view of a data structure applied to the present invention.

First, FIGS. 2A and 2B illustrate a method of storing the fingerprint information of the user in the control device 20. The method of registering and storing the fingerprint information of the user in order to use the door opening and closing method according to the present invention is shown. It is. In particular, FIG. 2A illustrates a method of registering a user's fingerprint information in the control device 20 when the electronic key 10 is used for the first time, and FIG. 2B illustrates an electronic key 10 already used by a specific user. In this case, the user fingerprint information is registered in the control device 20 when another user wants to use the device. First, FIG. 2A will be described and FIG. 2B will be described.

That is, as shown in FIG. 2A, the user first sets the control device 20 to the fingerprint registration mode by clicking the fingerprint registration mode button on the input device 57 of the control device 20 (202).

At this time, the user presses a specific button on the electronic key 10 (if there is a fingerprint registration mode button, and if there is no fingerprint registration mode button, it can be a closed or open button, etc.) (204), the user's fingerprint information Is input via the input unit 11 (206). Meanwhile, in the above description, when the fingerprint registration mode button is in the electronic key 10, the fingerprint registration mode setting process 202 may be omitted.

At this time, the control unit 14 transmits various information of the electronic key 10 (MAC information (device information) of the electronic key, additional information of the user, etc.) and control code information according to input of a specific button through the transmission / reception unit 15. The control unit transmits the data to the transceiver 30 of the control device (208). Meanwhile, the controller 14 extracts a feature point from the input fingerprint information 206 and temporarily stores the feature point in the storage unit 13 (210).

If the received control code is not the fingerprint registration mode code, the controller 52 of the control device 20 which has received various information from the electronic key 10 changes the received control code to the fingerprint registration mode code (212). .

On the other hand, the controller 52 checks the storage 54 to see if there is fingerprint information registered as the received electronic key 10 information (214).

When it is confirmed that there is no registered fingerprint information (216), the controller 52 transmits the result notification letter, the device information of the control device 20, and the fingerprint registration mode code information through the transmission / reception unit 30. 218.

The control unit 14 of the electronic key 10 that has received the information from the control device 20 may include fingerprint information and additional information (device information of the electronic key, user information) from which feature points temporarily stored in the storage unit 13 are extracted. Information, etc.) is transmitted to the control device 20 through the transceiver unit 15 (220).

The controller 52 of the control device 20 that receives the fingerprint information from which the feature point is extracted from the electronic key 10 stores the fingerprint information in the storage 54 together with the received electronic key information. Information and fingerprint information are matched and registered (222). That is, fingerprint information is registered as detailed information of the electronic key information. In this case, necessary additional information may be registered and stored together.

On the other hand, the control unit 14 of the electronic key 10 stores the device information of the control device (218) received from the control device 20 in the storage unit 13 (224).

In this case, the control unit 50 of the control device 20 may transmit the storage result to the electronic key 10 or output the result through the output unit 55 or notify the administrator through the external communicator 56. It may be.

Next, FIG. 2B illustrates a method of registering user fingerprint information in the control device 20 when another user wants to use the electronic key 10 already used by a specific user. From the process 252 to the process of checking the storage 54 whether the controller 52 has the fingerprint information registered as the received electronic key 10 information (264) will be described in Figure 2a Since the process is the same as the process 202-214, it is omitted. At this time, the fingerprint information input in the fingerprint input process 256 is referred to as fingerprint 1 information.

On the other hand, when the search result 264 confirms that there is registered fingerprint information (266), the controller 52 determines the result notification letter, the registered fingerprint information, the device information of the control device 20, and the fingerprint registration mode code information. The transmission is transmitted to the electronic key 10 through the transceiver 30 (268).

The control unit 14 of the electronic key 10, which has received the result notification that there is pre-registered fingerprint information from the control device 20, outputs the fingerprint 2 information to the user through the output unit 16, i.e., the user's registered fingerprint. The user is required to input the information, and the fingerprint 2 is input by the user whose fingerprint is already registered (270). In this case, the user may receive a fingerprint input request through the message of the output device 55 of the control device 20.

When the fingerprint 2 is input, the controller 14 of the electronic key 10 compares the registered fingerprint information transmitted from the control device 20 with the input fingerprint 2 information and determines whether the fingerprint 2 is matched (272).

In this case, when the two fingerprint information is matched as a result of the comparison, the control device 20 receives the fingerprint 1 information and the additional information (device information of the electronic key, user information, etc.) from which the feature points are extracted (260). If there is a mismatch, the mismatch information is transmitted to the control device 20 (274).

The controller 52 of the control device 20 that receives the fingerprint 1 information from which the feature point is extracted from the electronic key 10 stores the fingerprint 1 information in the storage 54 together with the received electronic key information. The electronic key information and the fingerprint 1 information are matched and registered (276). That is, fingerprint 1 information is registered as detailed information of the electronic key information. In this way, a plurality of people can register and use one electronic key 10. In this case, necessary additional information may be registered and stored together. However, the controller 52 receiving the fingerprint information mismatch information from the electronic key 10 may output a warning message through the output 55.

In addition, the controller 50 of the control device 20 may transmit the storage result to the electronic key 10 or output the result through the output unit 55, or the information to the administrator through the external communicator 56. You may also be informed.

On the other hand, the control unit 14 of the electronic key 10 stores the device information of the control device (268) received from the control device 20 in the storage unit 13 (278).

The fingerprint registration process has been described above with reference to FIGS. 2A and 2B, but there may be various fingerprint registration methods. Hereinafter, another fingerprint registration method will be described with reference to FIG. 2C.

That is, the user first inputs his fingerprint information through the input unit 11 of the electronic key 10, and inputs the fingerprint information and various information of the electronic key (MAC information (device information) of the electronic key) and the addition of the user. Information, etc.) is transmitted to the transceiver 30 of the control device via the transceiver 15 under the control of the controller 14 (290).

The controller 50 of the control device that has received the various information checks the device information of the received electronic key and then determines whether there is user fingerprint information registered as the electronic key information (291).

As a result of the determination, if there is pre-stored fingerprint information, it is recognized as additional fingerprint information, and an electronic key (10) receives a signal for inputting a pre-stored user's fingerprint in order to go through the authentication process of the pre-stored fingerprint. In operation 292, the user's fingerprint information, which is pre-stored in the fingerprint information, is transmitted from the electronic key 10 (293).

At this time, the controller 52 of the controller compares the transmitted fingerprint information with the user fingerprint information (user fingerprint information pre-registered as the transmitted electronic key information) previously stored in the storage 54 and determines whether there is a match. In this case, if the result does not match, the result may be transmitted to the electronic key 10 for authentication, and the result may be notified through the output device 55.

If the matching result 294 and the registered fingerprint information is identical or if there is no fingerprint information registered with the corresponding electronic key (291), the received fingerprint information and the electronic key information are stored in the storage device (54). Store at 295.

In this case, the controller 50 may transmit the storage result to the electronic key 10 or output the result through the output unit 55 (296).

Next, FIG. 2D illustrates a method of substantially opening and closing a door by a user who has registered his or her fingerprint information and electronic key 10 information to be used in the control apparatus 20 through the process illustrated in FIGS. 2A to 2C. It is shown.

That is, when the user wants to open or lock the door, the user presses a control button (referred to as an open button or a closed button) on the electronic key 10 (302). In this case, the user may input his fingerprint information through the input unit 11 of the electronic key 10 immediately after pressing the control button, and the input information may be temporarily stored in the storage unit 13 of the electronic key. have.

Meanwhile, when the control button is input, the controller 15 transmits the input control button information, its own electronic key information (MAC information, device information), and various additional information to the control device 20 (304).

The control unit 50 of the control device 20 that has received the information analyzes the transmitted electronic key information and the additional information, and extracts user fingerprint information registered as the transmitted electronic key information from the storage 54 (306). ).

On the other hand, the controller 52 generates a random number according to the transmitted control code (308), encrypts the extracted 306 user fingerprint information with the generated random number, and receives the electronic key together with the received electronic key information (304). Transmit to 10 (310).

In this case, the user checks the transmission process 310 through the output unit 16 of the electronic key 10 and then inputs his fingerprint information through the input unit 11 (312). In this case, the process 312 may be omitted when the user fingerprint information is already input together with the control button pressed.

Upon receiving the electronic key information and the encrypted fingerprint information from the control device 20, the controller 14 first determines whether the received electronic key information is the same as the electronic key information 304 transmitted by the controller 20. The extracted fingerprint information 310 is decoded to extract the transmitted fingerprint information, and the extracted fingerprint information is compared with the input fingerprint information 302 or 312 to perform a user authentication process (314). That is, in the present invention, the input user fingerprint and pre-registered user fingerprint information to be performed by the user authentication process are performed by the electronic key 10 instead of the control device 20.

As a result of performing the authentication procedure 314, if the user is not authenticated as a legitimate user, the information may be transmitted to the control device (316) or the warning message may be output through the output device (16). In addition, the 316 receiving the information that the user is not authenticated may also output various warning messages to the controller 50 and may notify the system administrator of the corresponding information through the external communicator 56.

On the other hand, if the authentication procedure is performed as a result of the operation 314, the authentication approval result is encrypted with the random number and transmitted to the control device together with the electronic key information (316).

The control unit 50 of the control device 10 having received the authentication approval result from the electronic key 10 first determines whether or not there is a match by comparing the transmitted electronic key information (316) with the electronic key information (304) initially transmitted. If it matches (318), the door is opened and closed in accordance with the transmitted control button information 304 (320). In this case, when the transmitted information is encrypted with the random number, the encrypted information is first decrypted and then the process is performed.

On the other hand, the process of encrypting by using the random number generated in the above process is to improve the reliability in the authentication process, the information to be encrypted can be set variously according to each system. In addition, the process may be used only when the door is opened, and may be used in both the opening process and the closing process.

Next, FIG. 2E illustrates a process of allowing a normal user of the electronic key 10 to open and close the door by delegating authority of using the electronic key to a third party.

That is, when the user selects the authority delegation button in the input unit 11 of the electronic key 10 (402) and inputs a fingerprint (404), the user is compared with the user fingerprint information previously stored in the storage unit 13. (406). 2A and 2D, there is no description that fingerprint information of the user of the electronic key 10 is stored in the storage unit 13 of the electronic key 10. In order to transmit the fingerprint information and the electronic key information to the control device during the information registration process (FIG. 2A), the fingerprint information input by the user is stored in the storage unit 13 of the electronic key. That is, the fingerprint information input during the fingerprint information registration process is transmitted to the control device and stored in the storage unit 13 of the electronic key 10.

On the other hand, if it is determined that the comparison result 406 matched, the information, that is, the authority delegation state, the information that has been authenticated by a legitimate user is temporarily stored in the storage unit 13, the authority delegated control button When inputting (408), electronic key information, control button information, delegation information and additional information is transmitted to the control device 20 (410).

The control unit 50 of the control device 20 that has received the information analyzes the transmitted electronic key information and additional information, and extracts user fingerprint information registered as the transmitted electronic key information from the storage 54 (412). ).

On the other hand, the controller 52 generates a random number according to the transmitted control code (414), encrypts the extracted user fingerprint information with the generated random number (414), the electronic key with the received electronic key information (410) Transmit to 10 (416).

The controller 14 receiving the electronic key information and the encrypted fingerprint information from the control device 20 first determines whether the received electronic key information is the same as the electronic key information 410 transmitted by the controller 20, and if it matches, After decrypting the encrypted fingerprint information 416 to extract user fingerprint information, the extracted fingerprint information is compared with the fingerprint information stored in the storage unit 404 to perform a user authentication process (418).

As a result of performing the authentication procedure 418, if the user is not authenticated as a legitimate user, the information may be transmitted to the control device 420 or an alert message may be output through the output unit 16. In addition, the controller 420, which has received the information that the user is not authenticated, may also output various warning messages, and may notify the system administrator of the corresponding information through the external communicator 56.

On the other hand, if the authentication procedure is performed as a result of the authentication (418), the authentication approval result is encrypted with the random number and transmitted to the control device together with the electronic key information (420). In this case, the authority delegation information for notifying that the process is performed through the authority delegation process is transmitted.

The controller 50 of the control device 10 having received the authentication approval result and the authority delegation information from the electronic key 10 first compares the transmitted electronic key information (420) with the electronic key information (410) transmitted first. If the match is determined (422), if it matches, it is switched to the authority delegation mode according to the transmitted control button information to open and close the door (422). That is, the door opening / closing method in the authority delegation mode operates immediately according to the opening control signal or the closing control signal of the door transmitted from the electronic key 10, and does not undergo the user fingerprint authentication process as shown in FIG. 2B. .

That is, once it is set in the authority delegation mode, only the electronic key information is received from the electronic key 10, and only the electronic key information is checked whether or not the electronic key is registered in the storage of the controller 50, and then the door can be opened and closed. To make it possible.

On the other hand, the delegation mode as described above is to allow a legitimate user to delegate the authority to a specific third party to temporarily use the door opening and closing system, and if the mode is continued may damage the legitimate user, the controller 50 After a certain time elapses, the authority delegation mode may be automatically released and switched to the normal mode (door opening and closing by the process shown in FIG. 2B).

Alternatively, if the authorized person or a legitimate user inputs the close button (or the open button) together with the authority delegation button through the input unit 11 of the electronic key 10 (426), the corresponding information is displayed. The control device 20 may transmit the data to the control device 20 to release the authority delegation mode (430). Alternatively, the control device 20 having received the information according to the release button input may be provided with a separate button for releasing the authority delegation to release the authority delegation mode (430).

3 illustrates a structure of data applied to the present invention, and illustrates in detail the structure of data transmitted between the electronic key 10 and the control device 20.

That is, the data structure applied to the present invention includes a start code for notifying the start of data, a device code containing various information (MAC information) on the electronic key 10, various control signals (open, close, delegation, authority). A control code containing information about the release), an encryption code containing encryption information according to a random number randomly generated by the controller 50 of the control device, a fingerprint information code containing a user's fingerprint information, and additional user information. It consists of an additional information code containing (user information such as resident registration number, title, department in charge) and other information codes containing information necessary for user authentication.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawing.

The present invention provides a separate door opening and closing system composed of an electronic key and a control device for the convenience of a user, so that the user authentication procedure can be performed in the electronic key, so that various fingerprint authentication can be performed without expensive control device replacement. There is an excellent effect that the algorithm can be applied to efficiently use the door opening and closing system.

In addition, the present invention has an excellent effect that the authentication algorithm can be managed in the electronic key, while the user information such as fingerprint information can be managed in the control device to increase the security effect.

Claims (13)

In the electronic key of the separate door opening and closing system composed of an electronic key and a control device including a power supply, Input means for receiving fingerprint information or various control codes; Control means for transmitting the control code to the control device, performing a user authentication process by comparing the fingerprint information received from the control device with the fingerprint information input from the input means, and transmitting the result to the control device; And Transmitting and receiving means for transmitting various kinds of information to the control apparatus or receiving various kinds of information from the control apparatus under the control of the control means. Electronic key for authentication comprising a. The method of claim 1, Storage means for storing the inputted information; And And an output means for outputting various control signals according to the control of the control means. The method according to claim 1 or 2, The input means, An electronic key for authentication, comprising at least one of a fingerprint input window, a registration button, an open button, a close button, a delegation authority button, and a delegation authority button for receiving a user fingerprint. The method according to claim 1 or 2, The control means, When the control device operates in the fingerprint registration mode, the user fingerprint information pre-registered with the electronic key is received from the control device, and the fingerprint 2 information input through the input means is compared with the received fingerprint information. Electronic key for authentication, characterized in that for performing a user authentication process. The method according to claim 1 or 2, The control means, And when the electronic key operates in the authority delegation state, comparing the input fingerprint information with the fingerprint information pre-stored in the electronic key to determine whether the authority is delegated. In the control device using an electronic key for authentication, Transmitting and receiving means for transmitting and receiving the authentication electronic key and information; Fingerprint information of a user registered with the authentication electronic key received when at least one of device information, control code information, and additional information of the authentication electronic key is transmitted from the authentication electronic key through the transmission and reception means. Control means for transmitting to the authentication electronic key and receiving user authentication result information from the authentication electronic key and controlling the operation accordingly; And Opening / closing means for opening or closing the door according to the control signal of the control means Control device comprising a. The method of claim 6, The control means, Interfacing means for transceiving information with the transceiving means; Storage means for storing at least one of electronic key information for authentication, user fingerprint information, and additional information; Analyze the control code and the electronic key information of the user received from the authentication electronic key through the interfacing means, and read the user fingerprint information registered with the authentication electronic key received from the storage means to the authentication electronic key. A controller for transmitting and controlling an operation according to an authentication result transmitted from the electronic key for authentication; And Power supply means for supplying power required for the respective means and controller Control device comprising a. The method of claim 7, wherein The controller generates various random numbers, and encrypts various types of information together with the random numbers and transmits the encrypted information to the authentication electronic key. In the door opening and closing method in the detachable door opening and closing system composed of an electronic key and a control device for authentication, When the control button of the authentication electronic key is clicked by a user, transmitting the input control button information and the information of the authentication electronic key to the control device; A second step of receiving user fingerprint information registered as the electronic key information from the control device which has received the information; A third step of receiving fingerprint information from a user after performing the first step or after performing the second step; A fourth step of determining whether the fingerprint information transmitted from the control device and the input fingerprint information match; And A fifth step of transmitting an authentication result according to the determination of the fourth step to the control apparatus; Door opening and closing method comprising a. The method of claim 9, And the user fingerprint information of the second step is encrypted and transmitted. The method of claim 9, A sixth step of transmitting user fingerprint information using the authentication electronic key as device information to the controller; Door opening and closing method further comprising a. The method of claim 11, A seventh step of receiving fingerprint 1 information with a click of a control button from a user; An eighth step of transmitting device information of the electronic key for authentication and control code information of the control button to the control device; A ninth step of extracting and storing a feature point with respect to the input fingerprint 1 information; When the control device is notified that there is no fingerprint information pre-registered as the device information of the authentication electronic key in the control device, the control device receives the information on the fingerprint information and the authentication electronic key from which feature points are extracted. A tenth step of transmitting and storing the information; And When the notification indicating that there is fingerprint information pre-registered as the device information of the electronic key for authentication and the pre-registered fingerprint information are transmitted from the control device, the user receives the fingerprint 2 information from the user. After comparing with the fingerprint information transmitted from the control device, if the match is matched, the information of the fingerprint 1 information and the electronic key for authentication is extracted to the control device, and if it does not match, the mismatch information is controlled. Eleventh step of sending to the device Door opening and closing device comprising a. The method according to any one of claims 9 to 12, Receiving a fingerprint from a user when the authority delegation button is selected; A thirteenth step of comparing the user fingerprint information pre-stored in the authentication electronic key with the fingerprint information input in step 12; A fourteenth step of storing information on the delegation state and input fingerprint information if the comparison result is matched; A fifteenth step of transmitting at least one of the electronic key information for authentication, the control button information, and the delegation information when a control button is input; A sixteenth step of receiving user fingerprint information registered as the electronic key information from a control device that has received the information; A seventeenth step of determining whether the fingerprint information transmitted from the control device and the input fingerprint information match; And An eighteenth step of transmitting the information on the authority delegation state together with the authentication approval information to the control device when the authentication is made as the legitimate user according to the determination of the seventeenth step to perform the operation according to the control button information; Door opening and closing method further comprising a.