Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trustworthiness of measurement devices in round-robin
  differential-phase-shift quantum key distribution   Round-robin differential-phase-shift quantum key distribution (RRDPS QKD) has
been proposed to raise the noise tolerability of the channel. However, in
practice, the measurement device in RRDPS QKD may be imperfect. Here, we show
that, with these imperfections, the security of RRDPS may be damaged, by
proposing two attacks for RRDPS systems with uncharacterized measurement
devices. One is valid even for a system with unit total efficiency, while the
other is valid even when a single photon state is sent. To prevent these
attacks, either security arguments need to be fundamentally revised or further
practical assumptions on the measurement device should be put.

28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics