Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Learning an Adversary's Actions for Secret Communication   Secure communication over a wiretap channel is investigated, in which an
active adversary modifies the state of the channel and the legitimate
transmitter has the opportunity to sense and learn the adversary's actions. The
adversary has the ability to switch the channel state and observe the
corresponding output at every channel use while the encoder has causal access
to observations that depend on the adversary's actions. A joint
learning/transmission scheme is developed in which the legitimate users learn
and adapt to the adversary's actions. For some channel models, it is shown that
the achievable rates, defined precisely for the problem, are arbitrarily close
to those obtained with hindsight, had the transmitter known the actions ahead
of time. This initial study suggests that there is much to exploit and gain in
physical-layer security by learning the adversary, e.g., monitoring the
environment.

21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int