Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced Security of Symmetric Encryption Using Combination of
  Steganography with Visual Cryptography   Data security is required when communications over untrusted networks takes
place. Security tools such as cryptography and steganography are applied to
achieve such objectives, but both have limitations and susceptible to attacks
if they were used individually. To overcome these limitations, we proposed a
powerful and secured system based on the integration of cryptography and
steganography. The secret message is encrypted with blowfish cipher and visual
cryptography. Finally, the encrypted data is embedded into two innocent cover
images for future transmission. An extended analysis was made to prove the
efficiency of the proposed model by measuring Mean-Square-Error (MSE),
Peak-Signal-to-noise-Ratio (PSNR), and image histogram. The robustness was
examined by launching statistical and 8-bit plane visual attacks. The proposed
model provides a secure mean to transmit or store highly classified data that
could be applied to the public security sector.

2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat