Abstract: Network system and method for providing an ad-hoc access environment. A network system capable of providing an ad-hoc access environment comprises a controller unit connected to the network for receiving access requests from a device; and an authority unit for providing an authorization assertion to the controller unit; wherein the controller unit carries out an authorization process based on an access control policy including at least one rule based on which the controller unit contacts the authority unit and the authority unit provides an authorization assertion.

Abstract: Network system and method for providing an ad-hoc access environment. A network system capable of providing an ad-hoc access environment comprises a controller unit connected to the network for receiving access requests from a device; and an authority unit for providing an authorization assertion to the controller unit; wherein the controller unit carries out an authorization process based on an access control policy including at least one rule based on which the controller unit contacts the authority unit and the authority unit provides an authorization assertion.

Abstract: Methods, systems and computer program products for authorizing ad-hoc access are disclosed. A method for ad-hoc authorization comprising the steps of sending a pre-token via an unsecured communication channel to a device requesting ad-hoc authorization, sending a token associated with the pre-token via a secure communications channel to a proxy for the device, receiving evidence of access by the device to the token and determining the ad-hoc authorization based on the evidence. The systems and computer program products disclosed provide means for practicing the methods disclosed.