Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Alternating Product Ciphers: A Case for Provable Security Comparisons
  (extended abstract)   We formally study iterated block ciphers that alternate between two sequences
of independent and identically distributed (i.i.d.) rounds. It is demonstrated
that, in some cases the effect of alternating increases security, while in
other cases the effect may strictly decrease security relative to the
corresponding product of one of its component sequences. As this would appear
to contradict conventional wisdom based on the ideal cipher approximation, we
introduce new machinery for provable security comparisons. The comparisons made
here simultaneously establish a coherent ordering of security metrics ranging
from key-recovery cost to computational indistinguishability.

12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph