Patent ID: 8756282

Claim:
A system for information exchange between interested parties comprising: a wireless communication network within a broadcast area; a plurality of mobile computer devices within the broadcast area operatively coupled to the wireless communication network, a verifier configured and operative to establish the identity of users of the plurality of mobile computer devices in the broadcast area, and to issue a certificate for each of the plurality of mobile computer devices, a first one of the mobile computer devices configured and operative to broadcast a first message containing a first keyword/class-of-user association to the plurality of mobile computer devices within the broadcast area, and a second one of the mobile computer devices configured and operative to receive the first message containing the first keyword/class-of-user association broadcast within the defined broadcast area from the first one of the mobile computer devices and to compare the first keyword/class-of-user association contained in the first message with a second keyword/class-of-user association maintained by the second one of the mobile computer devices to determine whether a common interest exists, wherein the second one of the mobile computer devices is configured and operative to retrieve the certificate issued for the first one of the mobile computer devices in response to determining the common interest exists and verifies the validity of the first keyword/class-of- user association contained in the first message using the certificate to provide electronic authentication certifying the common interest.