Before actually communicating information/data between two endpoints (C, S) connected to a network a secure and confidential distribution of a special key (K h) is performed to nodes (R j) along a path in the network. This is allowed by performing a path handshaking procedure in which first a hint token is forwarded along the path in a first direction and then a disclosure token is forwarded in the opposite direction. In forwarding the disclosure token it is verified in the nodes against the already received hint token. This assures that only nodes on-the particular path will receive the special key or possibly some other information related thereto.