Patent ID: 8897448
Filing Date: 2014-11-25
Classification: H04L,Y02D

Abstract:
1. A method of operating a local transport node to enable secure delivery of encrypted traffic via frames over a transport network comprising: communicating via in-band signaling with a remote transport node over a transport network to select a session key, the in-band signaling being provided in at least one frame of a first group of frames, the in-band signaling comprising at least one session key message bearing on selection of the session key, the session key message being encrypted by a master key when being transported between the local transport node and the remote transport node over the transport network, the master key being used to additionally encrypt authentication messages sent between the local transport node and the remote transport node, the authentication messages being unrelated to selection of the session key; receiving first traffic from a first network; encrypting the first traffic with the session key to generate encrypted first traffic; and transmitting the encrypted first traffic toward the remote transport node over the transport network in at least one frame of a second group of frames.