Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Graphical Password Scheme Resistant to Shoulder-Surfing   Shoulder-surfing is a known risk where an attacker can capture a password by
direct observation or by recording the authentication session. Due to the
visual interface, this problem has become exacerbated in graphical passwords.
There have been some graphical schemes resistant or immune to shoulder-surfing,
but they have significant usability drawbacks, usually in the time and effort
to log in. In this paper, we propose and evaluate a new shoulder-surfing
resistant scheme which has a desirable usability for PDAs. Our inspiration
comes from the drawing input method in DAS and the association mnemonics in
Story for sequence retrieval. The new scheme requires users to draw a curve
across their password images orderly rather than click directly on them. The
drawing input trick along with the complementary measures, such as erasing the
drawing trace, displaying degraded images, and starting and ending with
randomly designated images provide a good resistance to shouldersurfing. A
preliminary user study showed that users were able to enter their passwords
accurately and to remember them over time.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th