Retrieve or receive the second authentication information of the user of the first handheld device and Receive the first authentication information of the user of the first handheld device Wherein the first processor is programmed to determine the first authentication information derived from the first biometric information and to transmit the first authentication information of the user of the first handheld device to the second device via the network,wherein the second processor is configured to A system for authenticating identities of a plurality of users, the system comprising:Ī first processor, the processor programmed to authenticate a user of the first handheld device based on authentication information and to retrieve or receive first biometric information of the user of the first handheld device andĪ first wireless transceiver coupled to the first processor and programmed to transmit via a network a first wireless signal including first authentication information of the user of the first handheld device andĪ second wireless transceiver coupled to the second processor, anda second memory coupled to the second processor, andwherein the second device is configured to retrieve or receive respective second authentication information for a first plurality of users, wherein the first plurality of users includes the user of the first handheld device