Secure and Size Efficient Approach to Enhance the Performance of Text Steganographic Algorithm

Steganography is a fundamental and foremost approach used to ensure confidentiality of secret data. It is an art which ensures invisible communication by concealing secret information in cover media through scientific techniques. The text steganography faces a great challenge in security, robustness and size of stego text. In current studies, an improved, lightweight, secure, robust and size efficient technique is proposed for text steganography that also enhances the performance of existing approaches. To achieve the objectives, the algorithm applies a conditional bitcomplement function on binary value of confidential information. Moreover, start and end bits are also inserted during embedding secret information in cover text, confirming the integrity and confidentiality of secret data. Experimental results reveal that projected approach is more robust and secure without any stego key overhead. Furthermore, it has successfully achieved a size efficient stego text. Therefore, the secret information is harder to track.