Abstract: Enhanced character input using recognized gestures, in which a user's first and second gestures are recognized, and a control including radially disposed interaction elements is output. At least a portion of the interaction elements are associated with clusters of characters. When an interaction element is selected, the characters associated with the selected interaction element are disposed radially in relation to the selected interaction element. Using the control, the interaction element and a character associated with the selected interaction element are selected based on the user's recognized first and second gestures, respectively, and the selected character is output.

Abstract: An administrative user is authenticated to a server and authorized to delegate permission to a user to access an application. A request from the administrative user to delegate permission to the user is received at the server. A request from the user to register with the server is received at the server. The user is provided access to the application. The administrative user authenticates the user with non-secret information. The communications take place over a computer network.