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Transmitting/receiving system, transmission device, receiving device, control method for same, and program

A technology of a sending device and a transceiver system, which is applied in the directions of security devices, transmission systems, selection devices, etc., can solve problems such as failure to pass authentication

Inactive Publication Date: 2016-05-04
APLIX HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the transmission data is copied and sent directly to the receiving device, the variable code contained in the transmission data has already been used, so it cannot pass the authentication of the receiving device, and is detected as an illegal signal.

Method used

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  • Transmitting/receiving system, transmission device, receiving device, control method for same, and program
  • Transmitting/receiving system, transmission device, receiving device, control method for same, and program
  • Transmitting/receiving system, transmission device, receiving device, control method for same, and program

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0043] figure 1 It is a diagram showing an example of the overall configuration of the transmission and reception system according to the first embodiment of the present invention. The transmission and reception system of the first embodiment includes a plurality of transmission devices 100 ( TD1 to TD3 ), a reception device 200 (RD), and a network 300 . Although three transmission devices 100 are shown in this figure, any number of transmission devices 100 may be used as long as there are two or more transmission devices 100 .

[0044] The transmitting device 100 is a device that transmits a control signal to the receiving device 200 . A variable code is included in the control signal. The variable code is updated every time a control signal is sent. As a communication method between the transmitting device 100 and the receiving device 200, for example, Bluetooth (registered trademark) or the like is assumed.

[0045] The receiving device 200 is a device that receives a c...

no. 2 Embodiment approach ＞

[0082] Figure 7It is a diagram showing an example of the overall configuration of a transmission and reception system according to a second embodiment of the present invention. The transmission and reception system of the second embodiment includes a transmission device 100 (TD), a plurality of reception devices 200 (RD1 to RD3 ), and a network 400 . In this figure, although three receiving apparatuses 200 are shown, any number of receiving apparatuses 200 may be used as long as there are two or more receiving apparatuses 200 .

[0083] Operations in which the transmitting device 100 transmits a control signal to the receiving device 200 and the receiving device 200 receives the control signal from the transmitting device 100 are the same as those in the first embodiment. The transmitting device 100 can simultaneously transmit control signals to a plurality of receiving devices 200 . In addition, the hardware configurations of the transmitting device 100 and the receiving d...

no. 3 Embodiment approach ＞

[0101] Figure 12 It is a diagram showing an example of the overall configuration of a transmission and reception system according to a third embodiment of the present invention. The transmission and reception system of the third embodiment includes a plurality of transmission devices 100 ( TD1 to TD3 ), a plurality of reception devices 200 ( RD1 to RD3 ), and networks 300 and 400 . In this figure, although three transmitting devices 100 and three receiving devices 200 are shown, any number of transmitting devices 100 and receiving devices 200 may be used as long as they are two or more.

[0102] Operations in which the transmitting device 100 transmits a control signal to the receiving device 200 and the receiving device 200 receives the control signal from the transmitting device 100 are the same as those in the first and second embodiments. In addition, the hardware configurations of the transmitting device 100 and the receiving device 200 are also the same as those of the...

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PUM

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Abstract

A transmitting / receiving system for authenticating between transmission and receiving devices by using a code, wherein a code for authenticating is shared between a plurality of transmission devices or a plurality of receiving devices. Each of the plurality of transmission devices is provided with a variable-code storage unit, a control-signal transmission unit, a variable-code update unit, and a variable-code synchronization transmission unit. The variable-code storage unit stores a variable code. The control-signal transmission unit transmits a control signal including the variable code. The variable-code update unit updates the variable code after transmission of the control signal. The variable-code synchronization transmission unit transmits the updated variable code to another transmission device among the plurality of transmission devices, and sets the updated variable code as the new variable code.

Description

technical field [0001] The present invention relates to a sending and receiving system, in particular to a sending and receiving system using variable codes for authentication between sending and receiving devices, a sending device, a receiving device, a control method for the system and the device, and a program for enabling a computer to execute the method . Background technique [0002] In order to prevent the replay attack, there is conventionally known a technique in which a variable code whose content changes every transmission is included in the control signal. The so-called replay attack refers to an act of illegally passing the authentication of the receiving device by intercepting and copying a signal sent from the sending device to the receiving device, and sending the copied data to the receiving device. In such a replay attack, since the data to be sent is copied and sent directly, it may not be possible to deal with it only by encrypting the data. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q9/00E05B49/00G06F21/44
CPCG06F21/31G06F21/44H04L63/08H04L63/12H04W12/06G07C9/00H04L63/18
Inventor 郡山龙
Owner APLIX HLDG