Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mean-Set Attack: Cryptanalysis of Sibert et al. Authentication Protocol   We analyze the Sibert et al. group-based (Feige-Fiat-Shamir type)
authentication protocol and show that the protocol is not computationally
zero-knowledge. In addition, we provide experimental evidence that our approach
is practical and can succeed even for groups with no efficiently computable
length function such as braid groups. The novelty of this work is that we are
not attacking the protocol by trying to solve an underlying complex algebraic
problem, namely, the conjugacy search problem, but use a probabilistic
approach, instead.

22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc