Trusted group of a plurality of devices with single sign on,secure authentication

摘要

A system creates a trusted group of devices for single sign on. The trusted group is a set of two or more devices which can communicate securely to exchange information about the states of the devices. The two or more devices can arrange or establish the trusted group through the exchange of credentials or authentication information. After the establishment of the trusted group, the two or more devices may communicate through a secure connection established between the members of the trusted group. Each device may then execute normally and may encounter events that change the status of the device. Information about the locking or unlocking of the computer can be exchanged with the other members of the trusted group and the other members may also lock or unlock in concert.