Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Encryption Schemes using Finite Frames and Hadamard Arrays   We propose a cipher similar to the One Time Pad and McEliece cipher based on
a subband coding scheme. The encoding process is an approximation to the One
Time Pad encryption scheme. We present results of numerical experiments which
suggest that a brute force attack to the proposed scheme does not result in all
possible plaintexts, as the One Time Pad does, but still the brute force attack
does not compromise the system. However, we demonstrate that the cipher is
vulnerable to a chosen-plaintext attack.

16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat