1 research outputs found
Arbitrarily Varying Wiretap Channels with Non-Causal Side Information at the Jammer
We investigate the Arbitrarily Varying Wiretap Channel (AVWC) with non-causal
side information at the jammer for the case that there exists a best channel to
the eavesdropper and under the condition that strong degradedness holds.
Non-causal side information means that codewords are known at an active
adversary before they are transmitted. By considering the maximum error
criterion, we allow also messages to be known at the jammer before the
corresponding codeword is transmitted. A single letter formula for the common
randomness secrecy capacity is derived. Additionally, a multi letter formula
for the common randomness secrecy capacity is derived, for the case that strong
degradedness does not hold. Furthermore, we compare our results to the random
code secrecy capacity for the cases of maximum error criterion but without
non-causal side information at the jammer, maximum error criterion with
non-causal side information of the messages at the jammer, and the case of
average error criterion without non-causal side information at the jammer