Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Man-in-the-Middle and Denial of Service Attacks in Wireless Secret Key
  Generation   Wireless secret key generation (W-SKG) from shared randomness (e.g., from the
wireless channel fading realizations), is a well established scheme that can be
used for session key agreement. W-SKG approaches can be of particular interest
in delay constrained wireless networks and notably in the context of ultra
reliable low latency communications (URLLC) in beyond fifth generation (B5G)
systems. However, W-SKG schemes are known to be malleable over the so called
"advantage distillation" phase, during which observations of the shared
randomness are obtained at the legitimate parties. As an example, an active
attacker can act as a man-in-the-middle (MiM) by injecting pilot signals and/or
can mount denial of service attacks (DoS) in the form of jamming. This paper
investigates the impact of injection and reactive jamming attacks in W-SKG.
First, it is demonstrated that injection attacks can be reduced to -
potentially less harmful - jamming attacks by pilot randomization; a novel
system design with randomized QPSK pilots is presented. Subsequently, the
optimal jamming strategy is identified in a block fading additive white
Gaussian noise (BF-AWGN) channel in the presence of a reactive jammer, using a
game theoretic formulation. It is shown that the impact of a reactive jammer is
far more severe than that of a simple proactive jammer

16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph