Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Security of quantum key distribution with arbitrary individual
  imperfections   We consider the security of the Bennett-Brassard 1984 (BB84) protocol for
Quantum Key Distribution (QKD), with arbitrary individual imperfections
simultaneously in the source and detectors. We provide the secure key
generation rate, and show that only two parameters must be bounded to ensure
security; the basis dependence of the source and a detector blinding parameter.
The system may otherwise be completely uncharacterized and contain large
losses.

37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ