Abstract
In the present digital scenario secure communication is the prime requirement. Commonly, cryptography used for the said purpose. Another method related to cryptography is used for the above objective is Steganography. Steganography is the art of hiding information in some medium. Here we are using image as a means for covering information. Spatial domain image Steganography has been used for the work because of its compatibility to images. Objective of the paper is to increase the capacity of hidden data in a way that security could be maintained. In the current work MSB of the randomly selected pixel have been used as indicator. Result analysis has been performed on the basis of different parameters like PSNR, MSE and capacity.
Highlights
Steganography can be used to hide or cover the existence of communication of encrypted data
Cryptography hides the contents of a secret message from an attacker, whereas Steganography even conceals the existence of the message
Image Steganography is about exploiting the limited powers of the human visual system (HVS)[2]
Summary
Steganography can be used to hide or cover the existence of communication of encrypted data. A solution to this problem is Steganography [1] The purpose of both Steganography and Cryptography is to provide secret communication. Cryptography hides the contents of a secret message from an attacker, whereas Steganography even conceals the existence of the message. The system is broken when the attacker can read the secret message [2]. Breaking a steganographic system has two stages: first the attacker can detect that Steganography has been used second he is able to read the embedded message.
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