id author title date pages extension mime words sentence flesch summary cache txt 3t945q49p1f Ebrahim MolavianJazi Secure Communications over Arbitrarily Varying Wiretap Channels 2009 .txt text/plain 205 7 35 We study this model for traditional wiretap codes and randomized wiretap codes, and develop insights about the corresponding secrecy capacity and randomized-code secrecy capacity, respectively. Additionally, we establish two upper bounds on the randomized-code secrecy capacity that suggest a single bad ``averaged' state can preclude secure communication, while certain superiorities of the legitimate receiver over the eavesdropper in all ``averaged' states result in a positive secrecy capacity. cache/3t945q49p1f.txt txt/3t945q49p1f.txt