Abstract

This paper describes a keyless reversible data hiding technique using visual cryptography where data hiding is carried out before image encryptionto make lossless data retrieval process.Reversible Data Hiding technique is asecure way of transmitting data inside a cover media, so that data and cover file can be properly recovered at the receiver.Also visual cryptographic approach is used for encryption which helps to protect the image during transmission and a bit rotation technique is also employed in order to provide better encrypted image and make hacking more difficult. In proposed approach image is divided in three individual RGB components; such that the search space we get prior to data embedding is large. To overcome the limitations of key management a keyless approach is used; to provide more data security data shares are generated after encryption.

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