Abstract: A secure cloud storage and synchronization system and method is described that provides, among other things: (1) local password recovery, including a mechanism by which the user of the system can recover their password without having stored it on a remote server; (2) secure, private versioning of files, including a mechanism to privately store a version history of files on one or more remote servers in such a way that it is technically infeasible for anyone other than the legitimate owner to access any component of the file history; (3) secure, private de-duplication of files stored on one or more remote servers that reduces storage requirements by allowing for the storage of a single file when there are duplicates, even across users; and (4) secure, private sharing of files between users of the system that allows one user to share a file on the “cloud” with another user without deciphering or transporting the file.

Abstract: The system and methods disclosed allows devices, possibly on different networks, to discover, access and authenticate one another. When the target device is on the same network as the source device (or is otherwise directly addressable by the source device), the system provides a mechanism by which the source device can connect directly to the target device; otherwise, the system provides a mechanism by which the source and target devices may communication with one another using a commonly accessible computing device as a proxy. In the latter case, the mechanism is such that it is not technologically feasible for the proxy device to decipher communications between the source and target devices. The system accommodates dynamic change in network location (e.g. IP address) without requiring reconfiguration by the user, and mitigates problems introduced by the existence of firewalls.

Abstract: Methods and systems are provided herein that allow for a first device to remotely authenticate a particular software or hardware feature of a second device with which the first device is communicating. More specifically, the teachings herein allow for a server to verify that a particular application running on a client machine is an authentic application, as opposed to an application developed by a rogue element disguising itself as a authentic application. In a broader sense the teachings herein allow a server to initiate a sequence of instructions on the remote machine, and for which assurance is needed that the intended instructions were executed on the remote machine. Additionally methods and systems are provided that generate and update client registration certificates that are tightly bound to both client and server.

Abstract: A remote wireless device is provided that operates a user interface specific to a particular target application or device. The wireless device receives information regarding the status or operation of the target's application, and uses that information to determine what information and controls to present to the remote user. The remote user views information regarding the target application, and makes desired control selections using the available controls. The wireless device generates a message according to the control selections, and transmits the message to the target device. The target device acts responsive to the control message, and updated operational information may be sent to the remote wireless device.