Abstract

Steganography is one of the techniques to conceal the existence of hidden secret data inside a cover object. Images are used as cover objects for Steganography and in this work image steganography is adopted. Embedding secret information inside images requires intensive computations, and therefore, designing Steganography in hardware speeds up Steganography. This is implemented using ARM7TDMI processor and GSM 900. There are several techniques to conceal information inside cover-image. The spatial domain techniques manipulate the cover-image pixel bit values to embed the secret information. The secret bits are written directly to the cover image pixel bytes. Consequently, the spatial domain techniques are simple and easy to implement. The Least Significant Bit (LSB) is one of the main techniques in spatial domain image steganography. In this work, a new technique of LSB steganography has been proposed which is an improvised version of one bit LSB technique.