1Dept. of Computer Application, Dr. B.C.Roy Engineering College, West Bengal, India
2Dept. of Computer Science, The University of Burdwan, Burdwan, West Bengal, India
3Dept. of Computer Application, Bengal College of Engineering and Technology, Durgapur, West Bengal, India
*Corresponding author: Tanmoy Halder; tanmoyhalder@gmail.com
Online published on 29 April, 2015.
Steganography is the art of communicating in such a way that the existence of a secret information within another remains invisible. Since the Greek-era steganography has become a popular mode of secret communication. Modern day digital steganography has traveled through a long path of modification and development from basic LSB matching process to complex artificial intelligence based method. Transferring E-governance related information through non secure channel like internet is just not vulnerable for the data itself but could damage governmental security and privacy. Therefore this types of important documents could be protected form unauthorized viewers by applying steganography. In this paper we have reviewed various steganography techniques and analyzed their positive and negative sides in biref which could be applied for secure transaction of E-governance data.
E-governance, Steganography, Steganolysis, Adaptive LSB, Component based LSB, Edge detection filter based Techniques, LSB Matching, LSB Substitution, Pixel Indicator Techniques, Pixel Value Differencing