Key setting method, node, and network system
First Claim
1. A key setting method executed by a node that transmits and receives data through multi-hop communication in an ad-hoc network among a plurality of ad-hoc networks, the key setting method comprising:
- detecting connection with a mobile terminal communicating with a server connected to a gateway in each ad-hoc network among the ad-hoc networks;
transmitting by simultaneously reporting to the ad-hoc network, an acquisition request for a key for encrypting the data when the connection with the mobile terminal is detected at the detecting;
receiving from the server via the mobile terminal, a key specific to a gateway and transmitted from the gateway to the server consequent to transfer of the simultaneously reported acquisition request to the gateway in the ad-hoc network; and
setting the key specific to the gateway received at the receiving as the key for encrypting the data.
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Accused Products
Abstract
A key setting method executed by a node transmitting and receiving data through multi-hop communication in an ad-hoc network among multiple ad-hoc networks, includes detecting connection with a mobile terminal communicating with a server connected to a gateway in each ad-hoc network among the ad-hoc networks; transmitting by simultaneously reporting to the ad-hoc network, an acquisition request for a key for encrypting the data when the connection with the mobile terminal is detected at the detecting; receiving from the server via the mobile terminal, a key specific to a gateway and transmitted from the gateway to the server consequent to transfer of the simultaneously reported acquisition request to the gateway in the ad-hoc network; and setting the key specific to the gateway received at the receiving as the key for encrypting the data.
17 Citations
12 Claims
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1. A key setting method executed by a node that transmits and receives data through multi-hop communication in an ad-hoc network among a plurality of ad-hoc networks, the key setting method comprising:
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detecting connection with a mobile terminal communicating with a server connected to a gateway in each ad-hoc network among the ad-hoc networks; transmitting by simultaneously reporting to the ad-hoc network, an acquisition request for a key for encrypting the data when the connection with the mobile terminal is detected at the detecting; receiving from the server via the mobile terminal, a key specific to a gateway and transmitted from the gateway to the server consequent to transfer of the simultaneously reported acquisition request to the gateway in the ad-hoc network; and setting the key specific to the gateway received at the receiving as the key for encrypting the data. - View Dependent Claims (2, 3, 4, 5)
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6. A node that transmits and receives data through multi-hop communication in an ad-hoc network among a plurality of ad-hoc networks, the node comprising a processor;
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the processor configured to; detect connection with a mobile terminal communicating with a server connected to a gateway in each ad-hoc network among the ad-hoc networks; transmit by simultaneously reporting to the ad-hoc network, an acquisition request for a key for encrypting the data upon detection of the connection with the mobile terminal; receive from the server via the mobile terminal, the key specific to a gateway and transmitted from the gateway to the server consequent to transfer of the simultaneously reported acquisition request to the gateway in the ad-hoc network; and set the received key specific to the gateway as the key for encrypting the data. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A network system comprising:
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a node that transmits and receives a packet through multi-hop communication in an ad-hoc network among a plurality of ad-hoc networks, the node comprising a first processor; and a server connected to a gateway in each ad-hoc network of the ad-hoc networks, the server comprising a second processor, wherein the first processor is configured to; detect connection with a mobile terminal capable of communicating with the server, transmit by simultaneously reporting to the ad-hoc network upon detecting the connection with the mobile terminal, an acquisition request for a key for encrypting the data, receive from the server via the mobile terminal, the key specific to a gateway and transmitted from the gateway to the server consequent to transfer of the simultaneously reported acquisition request to the gateway in the ad-hoc network, and set the received key specific to the gateway as the key for encrypting the data, and wherein the second processor is configured to; receive the key specific to the gateway from the gateway in the ad-hoc network to which the acquisition request is transferred, and transmit to the node, via the mobile terminal, the received key specific to the gateway.
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Specification