KR101973569B1 - Safe secured by iris certification - Google Patents

Abstract

A safe according to the present invention includes: a camera having an accommodating portion, an opening / closing portion, and a lock portion and generating an iris image; A database storing IDs and iris templates of authenticated users; An iris authentication unit for acquiring an iris image of a user when an authentication processing request is input, reading out an iris template, and outputting iris authentication result information according to whether the iris template is matched or not; An operation section that can be operated by a user; An electronic element part whose electrical characteristic is changed corresponding to the operation of the operation part; An A / D converter for detecting a changed electrical characteristic of the electronic device and generating a digital value; And an authentication processing request for requesting execution of an authentication process for a user and an ID for authentication attempt as a digital value to the iris authentication unit and for locking or unlocking the lock unit in response to the iris authentication result information transmitted from the iris authentication unit And a decompression control unit for controlling the decompression unit.

Description

{SAFE SECURED BY IRIS CERTIFICATION}

FIELD OF THE INVENTION The present invention relates to a safeguard which can be operated by a dialing method and which is controlled to be unlocked or locked according to an operation result, and more particularly to a safeguard which is protected by an iris authentication combining a dial authentication method and an iris authentication method.

As shown in FIG. 1, the general safe 100 includes a receiving portion 101 capable of receiving a predetermined object therein, and an opening / closing portion 102 formed in a door shape to close the inlet of the receiving portion 101. [ (102).

The receptacle 101 constitutes most of the outer shape of the safe 100 and forms an internal space for accommodating any object. At least one surface of the accommodating portion 101 is opened to allow the user to access the inner space, and the opened portion can be closed by the opening / closing portion 102.

The opening and closing part 102 may be a door of the safe 100 and closes the inner space of the accommodating part 101 against the outside. The opening and closing part 102 is provided with a dial 20 as a user operating part for inputting a password or the like and has a knob 22 for opening and closing the opening and closing part 102. [

On the other hand, the dial 20 and the handle 22 are connected to a harness control device (not shown) for driving a dead bolt (not shown) or the like formed in the receiving portion 101 or the opening and closing portion 102, It is possible to open the opening / closing part 102 by operating the knob 22 only when a legitimate user for inputting the correct password through the dial 20 is operated.

2 is a view for explaining the outer shape of a dial applied to a safe or the like. The dial 20 is composed of a number plate 201 rotating around a rotation axis and a knob 202 for rotating the number plate. Numbers may be displayed on the license plate 201 at regular intervals.

Such a conventional safe uses only authentication using a dial as a means for authenticating a legitimate user. Therefore, it is vulnerable to security.

It is an object of the present invention to provide a safeguard capable of not only inputting a password through a dial but also enhancing security by using an iris image which is the most difficult to counterfeit among biometric information.

According to an aspect of the present invention, there is provided a safeguard which is protected by iris authentication. The safeguard includes an accommodating portion capable of accommodating an object, an opening / closing portion configured to close an inlet of the accommodating portion, And a locking portion for locking or unlocking the receiving portion with respect to the receiving portion, the safe comprising: a camera for capturing an iris and generating an iris image; A database for associating and storing an ID of an authenticated user and an iris template with respect to the safe; Acquiring an iris image of the user through the camera, reading an iris template associated with the authentication ID stored in the database, and outputting the read iris template and the acquired iris image An iris authentication unit having an authentication processor for outputting iris authentication result information in accordance with the coincidence of the iris authentication result information and the iris authentication result information; An operation unit operable by a user; An electronic device part whose electrical characteristic is changed corresponding to the operation of the operation part; An A / D converter for sensing a changed electrical characteristic of the electronic device and generating a digital value; And converting the electrical characteristics of the electronic device portion changed as a predetermined user operates the operation unit to a predetermined digital value, defining the converted digital value as an ID, requesting execution of an authentication process for the user And an unlocking control unit for transmitting the authentication processing request and the ID to the iris authentication unit as an ID for authentication attempt and controlling the locking or unlocking operation of the locking unit in accordance with the iris authentication result information transmitted from the iris authentication unit .

Further, the operating portion may be a slidable knob or a rotatable dial, and the electrical characteristic may be an electrical resistance, and the electronic element may be a variable resistor element whose electrical resistance changes in accordance with the slide of the knob or the rotation of the dial .

Furthermore, the safe according to the present invention may further include a display unit for visually displaying the digital value generated as a user operates the operation unit.

Further, the safes according to the present invention may further include an operation authentication key for informing an attempt of an arbitrary user, and the unlocking control unit may execute the ID authentication procedure or the iris authentication procedure when the operation of the operation authentication key is input do.

According to another aspect of the present invention, there is provided a safeguard which is protected by iris authentication, including: a receiving unit capable of receiving an arbitrary article; an opening / closing unit configured to close an inlet of the receiving unit; And a locking portion for locking or unlocking the opening / closing portion with respect to the accommodating portion, the safe comprising: a camera for capturing an iris and generating an iris image; A database storing an iris template and an ID of an authenticated user with respect to the safe, in association with each other; When the iris image is acquired from the user who tries to authenticate the camera, the iris image is compared with the iris template of the authenticated user stored in the database to output iris authentication result information indicating whether the iris image matches with the authenticated user, And an authentication processor for comparing the authentication ID and the ID of the authenticated user and outputting ID authentication result information indicating whether the ID is identical or not; An operation unit operable by a user; An electronic device part whose electrical characteristic is changed corresponding to the operation of the operation part; An A / D converter for sensing a changed electrical characteristic of the electronic device and generating a digital value; (1) when the iris authentication result information indicates that the iris image and the iris template coincide with each other, when the iris authentication result information indicates that the iris image matches the iris template, And the control unit controls the locking or unlocking operation of the locking unit according to the received ID authentication result, or (2) the iris authentication unit And an unlocking control unit for blocking the operation of generating the authentication ID or the operation of transmitting the ID ID to the iris authentication unit if the authentication result information indicates that the iris image and the iris template do not match.

The operation unit may be a slidable knob or a rotatable dial, and the unlocking control unit may be configured to stop the movement of the knob or the rotation of the dial to block the operation of generating the authentication ID Means can be activated.

According to the present invention constructed as described above, the security of the security is enhanced by combining the dial authentication method by inputting the ID (or the password) through the dial and the iris authentication method by the iris image input by the camera can do.

In particular, by implementing the ID input through the dial, exposure of the ID is prevented, and conventional safe users can easily adapt to the usage method.

FIG. 1 is a view showing the outline of a safe having a general dial.
Fig. 2 is a diagram showing the outline of the dial. Fig.
FIG. 3 is a block diagram illustrating a configuration of a safe protected by iris authentication according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating the configuration of the safe according to Fig. 3 in more detail with a configuration including a circuit element.
5 is a diagram showing a relationship between a resistance value of a variable resistance element and an ID to be converted and an example of a dial and a display section.
6 is a flowchart illustrating an operation of a safeguard protected by iris authentication according to an embodiment of the present invention.
7 is a flowchart illustrating the operation of a safeguard protected by iris authentication according to another embodiment of the present invention.

3 is a block diagram illustrating a configuration of a safe to be protected by iris authentication according to an embodiment of the present invention. Fig. 4 is a diagram illustrating the configuration of the safe shown in Fig. 3 in more detail with the configuration including circuit elements.

Referring to the drawings, a safety box according to an embodiment of the present invention includes an operating unit 20, an electronic device unit 30, an A / D An iris authentication unit 50, a display unit 60, a decompression control unit 70, and a lock unit 90. [0033]

The operating section 20 may be a dial having a number plate 201 and a knob 202 as shown in Fig. Alternatively, the operation unit 20 may be a sliding knob which can be moved in a sliding manner. The operation section 20 acts as a handle for operating the electronic element section 30. [

The electronic element section 30 may be a rotary variable resistance element having a rotation axis and having an electrical resistance varying with the rotation of the rotation axis. At this time, the rotary shaft of the variable resistive element can be connected to the rotary shaft of the dial, so that the rotary shaft of the variable resistive element can rotate in synchronization with the rotation of the dial.

On the other hand, the electronic element unit 30 may be a variable resistance element whose electrical resistance changes as the sliding knob of the operating unit 20 moves in a sliding manner. It may also be considered to connect the pinion to the rotary shaft of the dial, connect the rack to the knob of the variable resistance element, and change the electrical resistance by sliding the rack by the rotation of the pinion.

Hereinafter, it is assumed that the operating unit 20 is a dial. Further, the electronic element section 30 is described as being a rotary variable resistance element having a rotation axis connected to the dial 20.

Next, the A / D conversion section 40 measures the electrical resistance changed in the electronic element section (variable resistance element) 30 to generate a digital value (i.e., ID) corresponding to the electrical resistance. The digital value can be set to any numerical range. For example, the numerical range may be set to 0 to 9, 0 to 50, 0 to 99, and the like. If the numerical range is from 0 to 99 and the electrical resistance of the variable resistive element can be changed from 0 to 1000 ?, the numerical value can be changed every 10 ?. That is, 0 to 10 Ω is set to "0", 11 to 20 Ω are set to "1", 21 to 30 Ω are set to "2", and finally 991 to 1000 Ω can be set to digital values of "99" have. Further, the numerical range may be variously set to 0 to 9, 0 to 99, 0 to 999, and the like. (See Fig. 5)

In addition to setting the numerical value by dividing the magnitude of the resistance, it is also possible to detect the amount of rotation of the knob according to the variation of the resistance and to set the numerical value corresponding to the amount of rotation of the detected knob. That is, if the knob is rotated in the direction in which the resistance increases, the value can be increased according to the amount of rotation, and conversely, if the knob is rotated in the direction of decreasing the resistance, the value can be decreased according to the amount of rotation. In this case, it is possible to detect a fast rotation or a slow rotation of the knob, thereby controlling the rising or falling speed of the numerical value. This makes it possible to quickly and easily select the desired value even when the set numerical range is large.

The numerical value generated in correspondence with the rotation of the dial 20 is transmitted to the decompression control unit 70.

The iris authentication unit 50 photographs the iris of the user to acquire the iris image, compares the obtained iris image with the previously stored iris template, and if it is determined that both of the comparison results are the same person, And judges that the iris authentication is unsuccessful if it is determined that both are caused by another person.

The iris authentication unit 50 may include a camera 52, a database 56, and an authentication processor 54.

The camera 52 photographs the eyeball of the user located in front and generates an iris image. The generated iris image is transmitted to the authentication processor 54.

The database 56 may be a non-volatile memory and may store at least one of the numbers (IDs) that can be selected by the dial 20 as an authenticated ID, You can save the template. Further, the authenticated ID and the iris template are related to each other, so that, when a plurality of authenticated users exist, a specific iris template can be designated for each ID.

When the authentication processor 54 is requested to perform the iris authentication procedure from the outside (for example, the unification control unit or the authentication key (see FIG. 4)), the authentication processor 54 transmits the information provided with the request or the camera 52 The authentication process is performed using the acquired iris image. The authentication procedure performed by the authentication processor 54 is an iris authentication procedure and an ID authentication procedure.

First, in the iris authentication procedure, when the iris authentication procedure is determined to be successful by allowing the user who is authenticated to the safe 100 to photograph the iris through the camera 52, the iris authentication result information indicating the iris authentication success is output do. Conversely, when an unauthorized user other than the authenticated user attempts to authenticate through the camera 52, the iris authentication result information indicating the iris authentication procedure failure will be output.

In the ID authentication procedure, the authentication processor 54 receives the ID (i.e., authentication ID) generated from the A / D converter 40 as the user operates the dial 20, It is possible to check whether the ID matches the authenticated ID stored in the database 56. If there is a matching ID, it can be determined that the authenticated user has correctly entered the authenticated ID registered beforehand, and the ID authentication procedure can be determined as successful. If there is no matching ID, it can be determined that an unauthorized user has arbitrarily input the ID. The authentication processor 54 can output the ID authentication result information indicating the ID authentication result.

The safe 100 according to the present invention may include an authentication key that is operable to notify a user of an attempt to authenticate, and a function key for selecting / inputting various functions (see FIG. 4). For example, the user may press the authentication key prior to approaching the safe 100 to manipulate the dial 20 or prior to approaching the camera 52. When the operation of the authentication key is detected, the unlocking control unit 70 starts the measurement of the electric resistance in response to the operation of the dial 20 or drives the camera 52 to the iris authentication unit 50 to photograph the iris Can notify.

The display unit 60 is disposed in the vicinity of the operation unit 20 and visually displays a selected ID (a digital value generated according to a change in resistance value of the electronic device unit) as the user operates the operation unit. For this purpose, the display unit 60 may include, for example, a 7-segment LED.

The decompression control unit 70 detects the electrical resistance of the changed variable resistive element 30 as a user operates the dial 20 to generate a specific digital value and defines the generated digital value as the ID of the user , The defined ID can be displayed on the display unit 60 and transmitted to the iris authentication unit 50.

Further, the unlocking control section 70 can control the operation of the lock section 90. [ For example, if the lock portion 90 can be switched to the locked state or the unlocked state in accordance with the on / off of the power supply, the unlocking control portion 70 controls the power supply to the lock portion 90, Can be kept locked or unlocked.

To this end, the unlocking control unit 70 can interlock with the iris authentication unit 50. That is, the iris authentication unit 50 performs the iris authentication procedure (and can also perform the ID authentication procedure) in response to the request from the iris control unit 70, and transmits the iris authentication request to the iris authentication unit 50 (Iris authentication result information and / or ID authentication result information) of the authentication procedure, and controls the operation of the lock unit 90 in response thereto.

At this time, the decompression control unit 70 can operate in conjunction with the iris authentication unit in the following two ways.

(1) The unlocking control unit can simultaneously transmit the authentication ID and the authentication processing command to the iris authentication unit.

When a user attempts to access the safe 100 and attempts authentication, the user operates the " authentication key " (see FIG. 4) disposed at one side of the safe 100, turns the dial 20, And then brings his / her eyes closer to the camera 52 to attempt iris authentication.

When the operation of the authentication key is detected, the unshielding control unit 70 measures the electrical resistance appearing in the electronic element unit 30 and operates the A / D conversion unit 40 to generate the authentication purpose ID. Then, the iris authentication unit 50 is operated, and the ID for authentication attempt and the generated iris authentication processing command are transmitted. The iris authentication unit 50 acquires the iris image photographed by the camera 52 and confirms whether the authentication use ID is one of the authenticated IDs stored in advance in the database 56. If the iris image ID stored in association with the authenticated ID From the database 56, and compares the read iris template and the iris image acquired from the camera 52 with each other. As a result of the comparison, if both of them are the iris image of the same user, the ID authentication procedure and the iris authentication procedure are all successful. Therefore, the unification control unit 70 regards the user attempting authentication as the authenticated user, It is possible to control the lock portion 90 to unlock the lock portion 90. [

(2) The decompression control unit first transmits the iris authentication processing command to the iris authentication unit, and after receiving the iris authentication result information from the iris authentication unit, it can subsequently transmit the authentication ID and the ID authentication processing command.

A user attempting authentication with the safe 100 first attempts to authenticate the iris by operating the authentication key and bringing his or her eye close to the camera 52 and then turning the dial 20 to authenticate ID.

When the operation of the authentication key is detected, the unshavenization control unit 70 operates the iris authentication unit 50 and transmits an iris authentication processing command. The iris authentication unit 50 photographs the user's eyes and generates an iris image. Then, it is checked whether or not it matches the authenticated iris template stored in the database 56 in advance. If the photographed iris image matches one or more stored iris templates, the iris authentication unit 50 determines that the user who is trying to authenticate is an authenticated user and displays the iris authentication processing result as successful And transmits the iris authentication result information to the decompression control unit 70. [

The unlocking control unit 70 confirms that the iris authentication has succeeded and then operates the operation unit 20, the electronic device unit 30 and the A / D conversion unit 40 to receive the authentication ID from the user. Then, an ID authentication procedure for comparing the input authentication ID with the authenticated ID stored in the own memory or comparing the ID with the authenticated ID stored in the database 56 of the iris authentication unit 50 is performed. (The ID authentication procedure may be performed by the unlocking control unit itself)

If the authentication-use ID matches the authenticated ID, the unlocking control unit 70 regards the user attempting authentication as an authenticated user and controls the lock unit 90 to unlock the safe 100 have.

Further, in this case, means for blocking the rotation of the dial (operation portion) is added, and if the iris image inputted through the photographing portion does not coincide with any one of the plurality of iris templates stored in the authentication information storage portion, The rotation of the dial can be blocked so that the subsequent ID authentication procedure can not be performed. Alternatively, instead of interrupting the rotation of the dial, communication between the variable resistive element 30 and the A / D converter 40 or communication between the A / D converter 40 and the breakdown controller 70 may be blocked.

As described above, according to the configuration in which the ID is input using the dial and the authentication is performed through the iris capturing, irritation of the user inputting the password (i.e., ID) can be minimized, It is impossible to trace the operation trace by the hand of the user.

That is, in the case of a key input method in which a key-button or a touch-type operation is performed, a touch trace of the user's finger may be left on the key button or the touch pad. However, in the dialing method, since the trace of the finger is distributed along the periphery of the knob, it is not possible to trace how the user manipulated the knob.

Further, by configuring to input the password by the dial method, the rotation direction of the dial can be added as a part of the password. For example, if you enter 1, 2, or 3 as the password, you can enter the number 1 first, then rotate left, enter 2, and then turn right to input 3, You can check if you let me.

On the other hand, when 10 key buttons are generally used for inputting digital values, a membrane switch is configured for each key button, and whether or not the numerical values are input is determined according to whether the respective membrane switches are turned on / off have. Therefore, it is necessary to configure each switch and implement an interface for detecting on / off for each switch.

On the other hand, according to the present invention, a circuit for inputting a digital value can be simply constituted by merely connecting the rotary shaft of the variable resistive element to the dial. In recent years, microcomputers have built-in A / D converters basically, so that it is possible to construct a digital numeric input circuit by merely connecting the electrical resistance by a variable resistor element to an A / D converter of a microcomputer.

Further, since the circuit configuration can be simply realized, the failure rate of the circuit is reduced. Equipment such as safe boxes has a problem in that even if a fault occurs in the coasting control device, even a legitimate user can not open the opening and closing portion, so that the occurrence of a fault in the coasting control device should be completely excluded. At this time, by simplifying the circuit configuration using the variable resistive element, the probability of occurrence of such a failure can be remarkably reduced.

5 is a diagram showing the relationship between the resistance value of the variable resistance element and the ID to be converted and an example of a dial and a display portion in the safe according to the present invention. 5A shows a graph for explaining a method of designating each display number by digitally converting the resistance value of the variable resistance element as the resistance value of the variable resistance element increases or changes as the dial is rotated.

Fig. 5 (b) shows an example in which the ID is selected according to the change of the electric resistance value by the rotation of the dial and the conventional dial whose numbers are indicated by 0 to 9. In the figure, the dial is operated between 7 and 8, and a digital value of "79" is displayed on the display as ID.

Next, with reference to FIG. 6, an operation of controlling the unlocking of safes by the unlocking control device according to the embodiment of the present invention will be described. In this figure, an example of a method of performing the ID authentication procedure first and then performing the iris authentication procedure will be described.

First, a user (a user who tries to authenticate) who wants to open the opening / closing part of the safe opens the dial to input an arbitrary ID (authentication ID) (S11). Actually, this input ID is an ID given at the time of authentication when the user who is trying to authenticate is an authenticated user.

The unlocking control unit identifies the input ID, sets the identified ID as the authentication stealing ID, transmits the set authentication stealing ID to the iris authentication unit to perform the ID authentication procedure, and simultaneously instructs the iris authentication procedure to perform the iris authentication procedure (S12).

The iris authentication unit may perform an ID authentication procedure for comparing the input authentication ID with the authentication ID stored in advance in the database and guide the user to bring the eyeball close to the camera when the ID authentication procedure is successful, By bringing his or her eyeball close to the camera of the photographing section, the iris image can be photographed. The iris authentication unit acquires the iris image of the user through the camera and performs the iris authentication procedure (S13). (At this time, if the authentication stealing ID does not match any of the authenticated IDs, it can be determined that the ID authentication procedure has failed and the succeeding authentication operation can be rejected.)

When the iris image for authentication trial is acquired, the resolution control unit compares the obtained iris image with the authenticated iris template to determine matching information (S14). If it is determined that both are generated by the same user, it is determined that the user who is trying to authenticate is an authenticated user, and the authentication result information for controlling the operation of the lock portion is output (S15). Conversely, if they do not coincide with each other, it is determined that the user who is trying to authenticate is an unauthorized user, and the authentication failure is notified (S16).

FIG. 7 illustrates an operation of controlling the unlocking of safes by the unlocking control device according to another embodiment of the present invention. The present embodiment differs from the above embodiment in the order of iris authentication and dial authentication.

That is, if an arbitrary user (a user who tries to authenticate) accesses the safe and informs the user that an arbitrary switch (i.e., an authentication key) disposed on one side of the safe is operated to try authentication, the unlocking control unit drives the camera The iris image of the user is acquired (S21). When the iris image is acquired, it is checked whether the acquired iris image coincides with any of the previously stored authenticated iris templates (S22, S23). As a result of the examination, if there is an iris template matching the obtained iris image, the unification control unit reads the authenticated ID stored in association with the matching iris template (S24), receives the operation of the dial from the user, It is checked whether the entered ID (authentication ID) matches the read authentication ID (S25).

As a result of the inspection, if the authentication ID and the authentication ID match, the user attempting authentication can be determined as an authenticated user, and the lock is controlled (S26). Conversely, if the authentication stealing ID and the authentication ID do not match, the authentication procedure will be processed as failure (S27).

On the other hand, the unlocking control apparatus according to the present embodiment may further include means for blocking the operation of the user by blocking the rotation of the dial, and in step S23, depending on whether or not the iris authentication is successful, Or may be configured to block or allow access. With this, the authentication procedure can be further strengthened.

Claims (7)

1. A safe having a housing capable of accommodating an arbitrary object, an opening / closing part configured to close an inlet of the housing part, and a lock part for locking / unlocking the opening / closing part with respect to the housing part,
A camera for capturing an iris to generate an iris image; A database for associating and storing an ID of an authenticated user and an iris template with respect to the safe; Acquiring an iris image of the user through the camera, reading an iris template associated with the authentication ID stored in the database, and outputting the read iris template and the acquired iris image An iris authentication unit having an authentication processor for outputting iris authentication result information according to whether or not the iris authentication result is coincident;
An operation unit including an operation authentication key for the user to input an intention of the authentication attempt and a function key that the user can operate to input the authentication ID;
An electronic device part whose electrical characteristic is changed corresponding to the operation of the operating part;
An A / D converter for sensing a changed electrical characteristic of the electronic device and generating a digital value; And
Converts the electrical characteristics of the electronic element portion changed as a predetermined user operates the operation portion to a predetermined digital value, defines the converted digital value as the authentication state ID, and performs the authentication processing for the user And a unlocking control unit for transmitting a requesting authentication processing request and the authentication ID to the iris authentication unit and controlling the locking or unlocking operation of the locking unit in accordance with the iris authentication result information transmitted from the iris authentication unit A safe protected by iris authentication. The method according to claim 1,
Wherein the operating portion includes a slidable knob or a rotatable dial. 3. The method of claim 2,
The electrical characteristic is electrical resistance,
Wherein the electronic element unit is a variable resistance element whose electrical resistance changes in accordance with the slide of the knob or the rotation of the dial. The method according to claim 1,
Further comprising a display unit for visually displaying the digital value generated as a user operates the operation unit. delete 1. A safe having a housing capable of accommodating an arbitrary object, an opening / closing part configured to close an inlet of the housing part, and a lock part for locking / unlocking the opening / closing part with respect to the housing part,
A camera for capturing an iris to generate an iris image; A database storing an iris template and an ID of an authenticated user with respect to the safe, in association with each other; When the iris image is acquired from the user who tries to authenticate the camera, the iris image is compared with the iris template of the authenticated user stored in the database to output iris authentication result information indicating whether the iris image matches with the authenticated user, And an authentication processor for comparing the authentication ID and the ID of the authenticated user and outputting ID authentication result information indicating whether the authentication ID is identical or not,
An operation section that can be operated by a user;
An electronic device part whose electrical characteristic is changed corresponding to the operation of the operating part;
An A / D converter for sensing a changed electrical characteristic of the electronic device and generating a digital value; And
(1) when the iris authentication result information indicates that the iris image and the iris template coincide with each other, when the iris authentication result information indicates that the iris image matches the iris template, And the control unit controls the locking or unlocking operation of the locking unit according to the received ID authentication result, or (2) the iris authentication unit And an iris control section for interrupting the operation of generating the authentication state ID or the operation of transmitting the authentication state ID to the iris authentication section when the authentication result information indicates that the iris image and the iris template do not coincide with each other Vault protected by authentication. The method according to claim 6,
The operation portion is a slideable knob or a rotatable dial,
Wherein the control unit activates the means for forcibly blocking the movement of the knob or the rotation of the dial in order to block the operation of generating the authentication ID.

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