Secured communication between host devices

Abstract

An approach for a first host to establish communication with a second host comprising receiving an signal from a client that the client is in enrolled in a first communication group with the first host and enrolled in a second communication group with the second host, sending a first host-specific certificate and a pairing request message, receiving a second host-specific certificate and a first value, verifying the second host-specific certificate, verifying the first value, sending a second value, receiving a third value and an encrypted message, determining a fourth value equals the third value, deriving a temporary key, decrypting the encrypted message using the temporary key, obtaining a group key for the second communication group from the decrypted message, sending a group key for the first communication group, and receiving a verification message from the second host indicating successful establishment of communication.