Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: TraceSecure: Towards Privacy Preserving Contact Tracing   Contact tracing is being widely employed to combat the spread of COVID-19.
Many apps have been developed that allow for tracing to be done automatically
based off location and interaction data generated by users. There are concerns,
however, regarding the privacy and security of users data when using these
apps. These concerns are paramount for users who contract the virus, as they
are generally required to release all their data. Motivated by the need to
protect users privacy we propose two solutions to this problem. Our first
solution builds on current "message based" methods and our second leverages
ideas from secret sharing and additively homomorphic encryption.

30
The categories of this paper are: q-alg
2
The categories of this paper are: math
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph