A virtual delivery appliance may communicate with a client device over a network to provide the client device with a virtualized session for a user. A processor may be configured to communicate with the client device over the network to perform a registration operation with a relying party. An application within the virtualized session may perform an authentication operation with the relying party to access a resource. The processor may be configured to forward an authentication challenge message to the client device in response to the application receiving the authentication challenge message from the relying party for the user to access the resource, and receive an authentication answer message in response to the authentication challenge message from the client device.