Amelia Andersson
Linus Enroth Hansson

Steganography

The art of hiding a message in plain sight

Information is sent back and forth between millions of people every hour, but you never know who might be listening. Mail-clients use encoding to protect the privacy of their users, but is it enough to ensure complete secrecy? We can never be completely sure that the information we store, send or receive hasn't been intercepted or altered.

This report will begin with a background of secret correspondences throughout history, it will then focus on the methods and implementations available today. Among the methods we find Context-Free Mimicry, the steganographic approach used to construct the implementation described in the latter part of this report. A presentation of the user experiment conducted to evaluate this implementation is also found in this report.