Researchers develop covert optical communication system
Monday, May 12, 2014 - 08:01
in Physics & Chemistry
(Phys.org) —A team of researchers working at the University of Massachusetts has developed a way to prevent eavesdroppers from knowing when an electronic message has been communicated. In their paper, uploaded to the preprint server arXiv, the researchers describe a technique they've developed for hiding the presence of messages by chopping them into pieces, sending them in time blocks and hiding them in normal background noise.