DESIGN OF NEW STEGANOGRAPHY MECHANISM FOR IMAGES BASED ON LSB TECHNIQUE

Mohammed G. S. Al, M.Sc.; Safi,

	DESIGN OF NEW STEGANOGRAPHY MECHANISM FOR IMAGES BASED ON LSB TECHNIQUE
Baghdad College of Economic sciences University
Article 1, Volume 0, Issue 41, 2018, Pages 437-456
Authors
M.Sc. Mohammed G. S. Al;
Abstract
In this paper, a new Least Significant Bit (LSB) nonsequential embedding technique in 24 or 8 bit colors digital Bmp images, introduced. The idea is using an arbitrarily non least bit of the chose byte to be condition of embedding bit. This technique called a Random Control Bit (RCB). In the paper a design and implementation for images steganography system based on LSB mechanism was presented and discussed. Different image files stored by using bitmap format were utilized. Some auxiliary processes were suggested and investigated in order to recover some weak aspect inherent with the pure implementation of stego-systems. Among the auxiliary processes is the hopping and stream ciphering algorithm. Besides, the suggested system using crypto-hiding pseudo random key generator. This key generator works for the two purposes to investigate the encryption and embedding processes. The suggested RCB stego-system was tested using visual, Laplace and chi-square tests, the new method based on the idea of increasing the hoping rate due to the HVS-poor sensitivity. The results have indicating a goodd hiding performance.

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