ABSTRACT
To illustrate how Notestega can be used, consider the following scenario. Bob and Alice are on a spy mission. Before they start their mission, which requires them to reside in two different countries, they set the rules for communicating covertly using their professions as a justification. To make this work, they establish a business relationship as follows. Bob and Alice are students in two different schools, but taking the same course and they agree to use Notestega. is is like an online forum when students from different schools all over the world discuss a particular subject and exchange class notes. Bob and Alice generate notes concerning real topics to make their covert communications more legitimate. When Bob wants to send a covert message to Alice, Bob either posts notes online for authorized classmates
or online student friends, or he send the notes to them via email. ese notes conceal data. Covert messages transmitted in this manner will not look suspicious because Bob and Alice are students and their interaction is legitimate. e use of notes in both academic and nonacademic spheres is natural given the time pressure experienced by people nowadays. is renders the activity innocent. Furthermore, Bob and Alice are not the sole recipients. Other non-spy students send and receive such notes, further warding off suspicion. However, only Bob and Alice will be able to unravel the hidden message because they know the rules of the game.
