Local Area Network
First Claim
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1. A method of establishing and maintaining distributed security between a plurality of devices in au ad hoc network, the method having the steps of;
- associating each device with a unique device address;
assigning to one of said devices a control function to control access by other devices to said network;
each of said devices generating a public key for distribution to other devices;
each of said devices authenticating itself periodically with said other devices in order to determine status of said other devices;
arranging said devices into a plurality of trust groups, each group having a group key for distribution within said trust group;
associating a trust level to each of said devices;
each of said devices using said public key and said group key to perform key agreement in order to establish a secure communication charnel With said other devices in said group;
whereby each of said devices is responsible for its own security by generating,. distributing its own keys to said other devices.
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Abstract
A method and system for distributed security for a plurality of devices in a communication network, each of the devices being responsible for generating, distributing and controlling its own keys for access to the communication network and using the keys to establish a trusted network, each device'"'"'s membership to the communication network being checked periodically by other devices by using a challenge response protocol to establish which devices arc allowed access to the communication network and the trusted network.
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Citations
1 Claim
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1. A method of establishing and maintaining distributed security between a plurality of devices in au ad hoc network, the method having the steps of;
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associating each device with a unique device address; assigning to one of said devices a control function to control access by other devices to said network; each of said devices generating a public key for distribution to other devices; each of said devices authenticating itself periodically with said other devices in order to determine status of said other devices; arranging said devices into a plurality of trust groups, each group having a group key for distribution within said trust group; associating a trust level to each of said devices; each of said devices using said public key and said group key to perform key agreement in order to establish a secure communication charnel With said other devices in said group; whereby each of said devices is responsible for its own security by generating,. distributing its own keys to said other devices.
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Specification