This is a U2F compliant receiver for CrySIL. It should be used with a matching actor to build a CrySIL U2F element, see the U2F readme and Android readme.
The receiver can handle both U2F and CrySIL requests. For details on the conversion see the U2F commons.
Main class is WebSocketReceiver, which implements the interfaces needed for CrySIL and opens a WebSocket connection to the server specified. Construction of this receiver needs a ActorChooser to let the user choose which actor should perform the cryptographic operation. It also needs a CertificateCallback to let the user decide whether to accept a certificate provided by the server the receiver connects to. The receiver also supports using a key store to provide Client TLS authentication upon connecting to a secure WebSocket.