Authenticating method for short-distance radio devices and a short-distance radio device

[Technical field to which the invention belongs] The present invention<u style="single">Mutual authentication system for wireless devices, mutual authentication method for wireless devices, and wireless devices</u>Regarding. Specifically, for example, in a device having a short-range wireless data communication means such as Bluetooth, it has a function to easily authenticate each other.<u style="single">Mutual authentication system for wireless devices, mutual authentication method for wireless devices, and wireless devices</u>Regarding.

[0002] [Conventional Technology] A general procedure for certifying a mobile device in the conventional technique is composed of a base station and a mobile device such as a plurality of mobile phones, and the certification of each mobile device is inquired to the base station. What to do is well known. For the authentication, data such as an ID number and a password set in advance are input, and the data stored in the database or the like is verified to authenticate the match or mismatch.

[0003] [Problems to be Solved by the Invention] However, as described in the prior art, the numbers themselves when inputting ID numbers, passwords, etc. are mixed with characters and numbers and are long. There is a problem that the input work is complicated. In addition, there is a tendency that the number of usage methods such as mutual authentication, which is common in wireless communication, will increase in the future, and there is a problem that the user interface has become complicated as the authentication procedure at this time has become complicated.

[0004] Therefore, there is a problem that a method and a configuration that can be easily authenticated must be solved when mutually authenticating in a short-range wireless device, particularly a mobile device.

[Means for Solving the Problems] In order to solve the above problems, the present invention relates to the present invention.<u style="single">Mutual authentication system for wireless devices, mutual authentication method for wireless devices, and wireless devices</u>Is to have the following method and configuration.

【0006】<u style="single">(1) The mutual authentication system of wireless devices includes a setting means for setting the range of wireless communication from the first communication range to a second communication range narrower than the first communication range, and other means in the first communication range. Mutual authentication composed of a first device and a second device provided with a data communication means for performing data communication with the device of the above and an authentication means for mutually authenticating with another device in the second communication range. In the system, when the positions of the first device and the second device whose communication range is set to the second communication range by the setting means are within the second communication range of each other. In addition, mutual authentication is automatically performed by the authentication means.</u><u style="single">(2) The mutual authentication system for wireless devices according to (1), wherein the device is a portable device.</u><u style="single">(3) The mutual authentication system for wireless devices according to (1), wherein the setting by the setting means is performed by turning on the authentication button provided on the device.</u><u style="single">(4) The setting means according to (1), wherein the communication range is set from the first communication range to the second communication range by lowering the transmission output of the device. Mutual authentication system for wireless devices.</u><u style="single">(5) The setting means according to (1), wherein the communication range is set from the first communication range to the second communication range by lowering the reception sensitivity of the device. Mutual authentication system for wireless devices.</u><u style="single">(6) The mutual authentication method of wireless devices is the above-mentioned first method of mutual authentication of wireless devices in which a first device and a second device that perform short-distance wireless communication with other devices mutually authenticate each other. The communication range of one device is set from the first communication range to the second communication range narrower than the first communication range, and the communication range of the second device is set from the first communication range to the first communication. A second communication range narrower than the range is set, the first device and the second device are brought close to each other, and the second device is located within the second communication range of the first device. Moreover, when the first device is located within the second communication range of the second device, mutual authentication is automatically performed.</u><u style="single">(7) The method for mutual authentication of wireless devices according to (6), wherein the device is a portable device.</u><u style="single">(8) The mutual authentication method for wireless devices according to (6), wherein the setting by the setting means is performed by turning on the authentication button provided on the device.</u><u style="single">(9) The setting means according to (6), wherein the communication range is set from the first communication range to the second communication range by lowering the transmission output of the device. Mutual authentication method for wireless devices.</u><u style="single">(10) The radio according to (6), wherein the setting means sets the communication range from the first communication range to the second communication range by lowering the reception sensitivity of the device. Mutual authentication method for devices.</u>【0007】<u style="single">(11) The wireless device is a setting means for setting the range of wireless communication from the first communication range to a second communication range narrower than the first communication range, and data with other devices in the first communication range. It is composed of a first device and a second device having a data communication means for communicating and an authentication means for mutually authenticating with other devices in the second communication range, and the communication range is set by the setting means. When the positions of the first device and the second device set in the second communication range are within the second communication range of each other, the mutual authentication is automatically performed by the authentication means. Is to do.</u><u style="single">(12) The wireless device according to (11), wherein the device is a portable device.</u><u style="single">(13) The wireless device according to (11), wherein the setting by the setting means is performed by turning on the authentication button provided on the device.</u><u style="single">(14) The setting means according to (11), wherein the communication range is set from the first communication range to the second communication range by lowering the transmission output of the device. Nothing</u><u style="single">Wire equipment.</u><u style="single">(15) The setting means according to (11), wherein the communication range is set from the first communication range to the second communication range by lowering the reception sensitivity of the device. Wireless device.</u>[0008] As described above, in a state where a plurality of short-range wireless devices having a short-range wireless data communication means and an authentication means, particularly a portable short-range wireless device, are present, radio waves generated by the devices are generated. When entering the inside, that is, by approaching a predetermined distance automatically or by confirming each other by the user and performing mutual authentication, the work of inputting complicated data such as an authentication number can be reduced. Therefore, the operability can be greatly improved.

[Embodiments of the Invention] Next, the present invention relates to the present invention.<u style="single">Mutual authentication system for wireless devices, mutual authentication method for wireless devices, and wireless devices</u>The embodiment of the above will be described with reference to the drawings.

[0010] The first embodiment of the present invention.<u style="single">The short-range wireless device that embodies the mutual authentication system of wireless devices and the authentication method of short-range wireless devices is</u>As shown in FIG. 1, it is composed of a terminal device which is a portable device such as a mobile phone, and forms a data communication means for short-range wireless communication, and an authentication mode. The authentication unit 120, which is an authentication means that can decrypt and authenticate the data received by the short-range data communication unit 110 at the time, the authentication button 130 that forms the authentication mode, and the wireless when the authentication button 130 is turned on. It is composed of a radio output attenuation unit 140 that attenuates the output and narrows the radio range.

[0011] The operation of the terminal device in such a configuration will be described with reference to FIG. 1 based on the flowchart shown in FIG.

[0012] First, when the authentication button 130 is off, the data communication mode is set and normal communication is performed (steps ST110, ST120, ST130). That is, as shown in FIG. 3, the terminal device A is in a normal state, and the transmission output is also an output that can cover a certain distance (range of W1 in FIG. 3).

[0013] When the authentication button 130 is turned on, the authentication mode is entered, the transmission output is lowered, and the range of the output radio waves is extremely narrowed. Set (steps ST110, ST140, ST150). Then, when the devices are within the range of the radio waves generated by each other, that is, when the devices are in close proximity to each other, mutual authentication can be performed (step ST160). That is, as shown in FIG. 4, the terminal device A enters the authentication mode by pressing the authentication button 130 (see FIG. 3) on the terminal device A. The transmission output at this time is suppressed to a considerably low level, and the communication distance (range of W2 in FIG. 4) is such that communication cannot be performed unless the distance is very close. Similarly, the authentication button 130 is pressed, and the terminal device B within the communication distance W3 approaches to authenticate with the terminal device A.

Then, as shown in FIG. 5, when the terminal device A and the terminal device B approach each other to a distance (communication distances W4 and W5), the user automatically or confirms and performs mutual authentication. Will be.

[0015] Here, in the case of the embodiment, the terminal devices A and B are configured to mutually authenticate each other in a state where the transmission output is reduced, but the present invention is not limited to this, and only a specific device is used. Of course, the transmission output may be reduced.

[0016] In this way, in the case of the authentication mode, mutual authentication between a large number of devices can be prevented by narrowing the range of the output radio waves so that the devices can be received in close proximity to each other. , It becomes possible to perform mutual authentication in a nearly one-to-one relationship.

Next, according to the second embodiment of the present invention.<u style="single">Mutual authentication system for wireless devices, authentication method for short-range wireless devices, and short-range wireless devices</u>Will be described with reference to the drawings.

[0018] A second embodiment of the present invention.<u style="single">Short-range wireless devices that embody mutual authentication systems for wireless devices and authentication methods for short-range wireless devices</u>Is composed of terminal devices, which are portable devices such as mobile phones, as in the case described in the first embodiment above, as shown in FIG. 6, and performs short-range wireless communication. The short-range data communication unit 110 that forms the data communication means, the authentication unit 120 that is an authentication means that can decrypt and authenticate the data received by the short-range data communication unit 110 in the authentication mode, and the authentication mode. It is composed of an authentication button 130 to be formed and a reception sensitivity attenuation unit 150 that attenuates the reception sensitivity and shortens the communication distance when the authentication button 130 is turned on.

[0019] The operation of the terminal device in such a configuration will be described with reference to FIG. 6 based on the flowchart shown in FIG. 7.

[0020] First, when the authentication button 130 is off, the data communication mode is set and normal communication is performed (steps ST210, ST220, ST230). That is, as shown in FIG. 8, the terminal device A is in a normal state, and the transmission output is also an output that can cover a certain distance (range of W6 in FIG. 8).

[0021] When the authentication button 130 is turned on, the authentication mode is entered and the reception sensitivity is lowered, so that the communication distance becomes extremely narrow. For example, the range is set so that reception or communication cannot be performed unless the devices are in close proximity to each other (for example). Steps ST210, ST240, ST250). Then, when the devices are within the range of the radio waves generated and the distance is such that they can communicate with each other, that is, when the devices are in close proximity to each other, mutual authentication can be performed (step ST160). That is, as shown in FIG. 8B, by pressing the authentication button 130 on the terminal device A, the terminal device A enters the authentication mode. At this time, the reception sensitivity is lowered, and communication is not possible unless the communication distance (range of W7 in FIG. 8 (B)) is very close. Similarly, the authentication button 130 is pressed and the terminal device B within the communication distance W8 approaches to authenticate with the terminal device A.

Then, as shown in FIG. 8C, when the terminal device A and the terminal device B approach each other to a distance (communication distances W9, W10) that can communicate with each other, the user automatically or confirms each other. Authentication is done.

[0023] Here, in the case of the embodiment, the terminal devices A and B are configured to mutually authenticate in a state where the reception sensitivity is lowered from each other, but the present invention is not limited to this, and only a specific device can be used. Of course, the reception sensitivity may be lowered.

[0024] FIGS. 9 to 11 show mutual authentication in a state where the reception sensitivity of a specific terminal device (terminal device A in the case of the embodiment) is lowered. First, FIG. 9 is shown. As described above, the terminal device A is in the normal state, and the transmission output is also an output that can cover a certain distance (range of W11 in FIG. 9).

In this state, as shown in FIG. 10, when the authentication button 130 of the terminal device A is turned on, the terminal device A enters the authentication mode. At this time, the reception sensitivity is suppressed to a low level (communication range W12 in FIG. 10), the communication distance is shortened, and communication is not possible unless the terminal devices are brought very close to each other.

Then, the terminal device B having a normal communication distance (communicable range W13 in FIG. 10) approaches the terminal device A, and as shown in FIG. 11, a terminal having a communication range W12 having a narrow communication distance. When the terminal device B having the communication range W13 approaches the range of the device A and approaches the receivable range, mutual authentication is performed automatically or after confirmation by the user. Further, at this time, when the terminal devices A and B are adjacent to each other, the communication range W14 of the terminal device C is out of the communication range of the terminal devices A and B, so that the authentication is not performed.

[0027] In this way, in the authentication mode, mutual authentication between a large number of devices can be prevented by narrowing the range of the radio waves to be output so that the devices can be received in close proximity to each other. , It becomes possible to perform mutual authentication in a nearly one-to-one relationship.

[0028] Further, in the first embodiment, the transmission output is lowered, and in the second embodiment, the reception sensitivity is lowered to perform mutual authentication, but both functions are provided. It goes without saying that the terminal device may be used for authentication.

[Effects of the Invention] As described above, the present invention relates to the present invention.<u style="single">Mutual authentication system for wireless devices, authentication method for short-range wireless devices, and short-range wireless devices</u>When the authentication mode is set, the data input work for authentication can be omitted by automatically or by confirming and authenticating the devices when the devices are close to each other. It has the effect of improving the performance and enabling mutual authentication even if the special user interface is not enriched.

BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] FIG. 1 is a block diagram showing a configuration of a terminal device which is a device of the first embodiment according to the present invention.

FIG. 2 is a flowchart showing the same operation.

FIG. 3 is an explanatory diagram showing a range of radio waves in the same data communication mode.

FIG. 4 is an explanatory diagram showing a range of radio waves in the same authentication mode.

FIG. 5 is an explanatory diagram showing mutual authentication between devices in the same authentication mode.

FIG. 6 is a block diagram showing a configuration of a terminal device which is a device of the second embodiment according to the present invention.

FIG. 7 is a flowchart showing the same operation.

FIG. 8 is an explanatory diagram showing an authentication state in which the reception sensitivity is lowered in the same recognition mode.

FIG. 9 is an explanatory diagram showing a range of radio waves in the same data communication mode.

FIG. 10 is an explanatory diagram showing authentication by setting the specific terminal device in the authentication mode and lowering the reception sensitivity.

FIG. 11 is an explanatory diagram showing mutual authentication between devices in the same authentication mode.

[Description of Code] 110; Short-distance data communication unit, 120; Authentication unit, 130; Authentication button, 140; Radio output attenuation unit, 150; Reception sensitivity attenuation unit