Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some Proxy Signature and Designated verifier Signature Schemes over
  Braid Groups   Braids groups provide an alternative to number theoretic public cryptography
and can be implemented quite efficiently. The paper proposes five signature
schemes: Proxy Signature, Designated Verifier, Bi-Designated Verifier,
Designated Verifier Proxy Signature And Bi-Designated Verifier Proxy Signature
scheme based on braid groups. We also discuss the security aspects of each of
the proposed schemes.

14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an