Secret Digital Image Sharing Using Natural Image Based VSS Scheme

Pinky.V

Abstract: Visual cryptography is a technique of sharing secret images. This technique encrypts a secret image into number of shares. Combining these shares generates the original image and it can be directly recognized by the human visual system. Visual Secret Sharing scheme is a method of distributing and sharing the secret image amongst a set of users. In conventional visual secret sharing scheme, the shares May holding the security parameters for protecting the secret image but it will leads to suffering the problem of transmission risk. This is the main problem in conventional VSS scheme. To solve this problem here introduce a new scheme of secret digital image sharing via natural image based VSS scheme. In this proposed scheme the shares are encrypted by using the strong AES encryption technique after that this encrypted share is embedded into the natural image. For recovering the original image, it is necessary to decrypt the encrypted share. This method not only reduces the transmission risk problem but also enhance the security of the secret image.

Keywords: Visual Cryptography, Visual Secret Sharing Scheme, Transmission Risk Problem, Natural Image based VSS scheme, Encryption/Decryption technique