Patent ID: 9596049
Date: 2017-03-14
CPC Classifications: H04B,H04K,H04L,H04Q

Claim:
1. A method, comprising: encrypting, by a processing system including a processor, a true data signal to obtain an encrypted true data signal; receiving, by the processing system, the encrypted true data signal at a channel input of a channel scrambling unit, wherein the channel scrambling unit comprises an original set of channel assignments; receiving, by the processing system, at respective channel inputs of the channel scrambling unit, a plurality of decoy data signals; optically switching, by the processing system, the original set of channel assignments for both the encrypted true data signal and the plurality of decoy data signals to form, at a plurality of channel outputs, a plurality of scrambled signals using a predefined channel assignment scrambling key; and applying, by the processing system, the plurality of scrambled signals to a plurality of inputs of a multi-channel transmitter for transmission of the plurality of scrambled signals across a communication system.