Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on quantum safe symmetric key growing   Quantum key distribution is a cryptographic primitive for the distribution of
symmetric encryption keys between two parties that possess a pre-shared secret.
Since the pre-shared secret is a requirement, quantum key distribution may be
viewed as a key growing protocol. We note that the use of pre-shared secrets
coupled with access to randomness beacons may enable key growing which, though
not secure from an information-theoretic standpoint, remains quantum safe.

35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg