Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Theorem for Secrecy in Tagged Protocols Using the Theory of
  Witness-Functions   In this paper, we enunciate the theorem of secrecy in tagged protocols using
the theory of witness-functions and we run a formal analysis on a new tagged
version of the Needham-Schroeder public-key protocol using this theorem. We
discuss the significance of tagging in securing cryptographic protocols as
well.

32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg