Complex Encryption Methodology Based On Two Level Encryption Technique
Samir Kumar Bandyopadhyay
Journal of Information Security Research, Vol. 8, No. 3, 2017.
DOI: 
Link: http://www.dline.info/jisr/fulltext/v8n3/jisrv8n3_3.pdf
Abstract:
In this paper a complex encryption methodology has been employed to perform a high level data security. Here
a two level encryption technique has been described. In first level a pattern matching array has been created in such a way
such that all possible combination of any 4 bits sequences are present there. By using this pattern matching array the
positional value of the secret message has been identified and in second level the positional value has been embedded into
the LSB of the cover file. This technique is independent of the size of the text message and message retrieved in the receiving
end is totally lossless .The quality of the proposed method is evaluated by using two factors Means square error(MSE) and
signal to noise ratio(SNR) and finally a comparison has been done with different traditional steganography techniques.
According to different experimental results and the comparison our method is extremely efficient in terms of encryption and
the size of the text.