Cognitive Covert Traffic Synthesis Method Based on Generative Adversarial Network

Table 1

Symbol vector and information modulation from the perspective of information hierarchy.

Information type	Covert carrier	Symbol vector	Information modulation mode
Syntax (feature class)	Packet	Specific protocol domain	Morphological parameters
Semantic (statistical)	Conversation group	Packet interval, packet sequence	Statistical rules
Pragmatic (pattern)	Data flow	Flow behavior, application	Pattern classification