NON DETERMINISTIC SECURE LSB STEGANOGRAPHY FOR DIGITAL IMAGES

This research contribution discussed and analyzed a novel LSB based steganographic information-theoretic secure solution to facilitate not only the inveil communication but also to ensure the security of data whether in transit or at rest in the purview of cloud computing persistent data storage services. Though the service providers undertake the protection of data, yet the gray areas such as proxies regarding data retention may not be ignored or overruled. The effectiveness of the proposed algorithm lies in the uncertainty in predicting the original length and positioning of the hidden bits by virtue of which the cover image may repeatedly be used when supported by a genuinely random bit generating source in addition to a sufficiently large stego-key. An implicit take away from this research is that the data security of LSB based steganography lies in disconnecting the one-to-one mapping between the secret message bits and that of the LSBs of the target cover.