CCHEF (Covert Channels Evaluation Framework) is a software framework for empirically evaluating covert channels in network protocols running under Linux. CCHEF can be used in real networks with real overt traffic, but can also emulate covert channels using overt traffic from trace files. CCHEF was mainly designed for research purposes, but not to be (mis)used for real covert channel communication. Therefore, the sender/receiver application is a normal user space programs and not disguised in any way.
