Making a covert channel on the Internet
Wednesday, June 4, 2014 - 06:50
in Physics & Chemistry
(Phys.org) —The best way to keep a message secret is not just to encrypt it, but to hide the fact that the message is even there. Computer scientists have created "covert channels" on the Internet, but they have been slow and fairly easy to detect. Now a Cornell researcher has demonstrated a way to send messages that are undetectable by ordinary methods, with high reliability and enough bandwidth for video chat.