Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Infinite Families of Optimal Splitting Authentication Codes Secure
  Against Spoofing Attacks of Higher Order   We consider the problem of constructing optimal authentication codes with
splitting. New infinite families of such codes are obtained. In particular, we
establish the first known infinite family of optimal authentication codes with
splitting that are secure against spoofing attacks of order two.

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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio