Common key sharing method and wireless communication terminal in ad hoc network
First Claim
1. A common key sharing method in an ad hoc network constituted by wireless communication terminals implemented with relay functions thereon, comprising:
- a common key generating step in which a first wireless communication terminal responsible for relaying generates a common key shared within said ad hoc network;
a common key distributing step in which said first wireless communication terminal responsible for relaying distributes said common key to each of a plurality of other wireless communication terminals within a wireless communication area; and
a transferring step in which each of said plurality of wireless communication terminals which received said common key holds said common key, and when one or more of said plurality of wireless communication terminals are responsible for relaying, said plurality of wireless communication terminals being responsible for relaying transfers said common key to other one of each of said plurality of wireless communication terminals within a wireless communication area.
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Accused Products
Abstract
The present invention relates to a common key sharing method in an ad hoc network constituted by wireless communication terminals implemented with relay functions thereon, comprising a common key generating step in which a first wireless communication terminal responsible for relaying generates a common key, a common key distributing step in which the first wireless communication terminal responsible for relaying distributes the common key to a second wireless communication terminal within a wireless communication area, and a transferring step in which the second wireless communication terminal which received the common key holds the common key, and the second wireless communication terminal transfers the common key to a third wireless communication terminal within a wireless communication area, when the second wireless communication terminal is responsible for relaying. Accordingly, it is possible to share a common encryption key within the ad hoc network.
29 Citations
11 Claims
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1. A common key sharing method in an ad hoc network constituted by wireless communication terminals implemented with relay functions thereon, comprising:
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a common key generating step in which a first wireless communication terminal responsible for relaying generates a common key shared within said ad hoc network; a common key distributing step in which said first wireless communication terminal responsible for relaying distributes said common key to each of a plurality of other wireless communication terminals within a wireless communication area; and a transferring step in which each of said plurality of wireless communication terminals which received said common key holds said common key, and when one or more of said plurality of wireless communication terminals are responsible for relaying, said plurality of wireless communication terminals being responsible for relaying transfers said common key to other one of each of said plurality of wireless communication terminals within a wireless communication area. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless communication terminal implemented with a relay function for constituting an ad hoc network, comprising:
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a network information generating means in which said wireless communication terminal sends/receives information regarding network configuration to/from each of a plurality of wireless communication terminals within a wireless communication area and generates network configuration information; a common key generating means in which said wireless communication terminal generates a common key to be shared within said ad hoc network when said wireless communication terminal itself being determined as responsible for relaying based on said network configuration information; a common key distributing means in which said wireless communication terminal distributes said common key thus generated to each of the plurality of wireless communication terminals within the wireless communication area; and a transferring means in which when each of the plurality of wireless communication terminals receives said common key, each of the plurality of wireless communication terminals holds said common key, and transfers said common key thus received to other one of each of the plurality of wireless communication terminals within the wireless communication area, when each of the plurality of wireless communication terminals itself being determined as responsible for relaying. - View Dependent Claims (8, 9, 10, 11)
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Specification