Security analysis of authentication of images using recursive Visual Cryptography
Visual Cryptography Scheme (VCS) is a perfect secure method that encrypts a secret image by breaking it into shared images. The benefit and uniqueness of VCS is the easy decoding without the help of hardware and complex computation. In [2], Gnanaguruparan and Kak designed a recursive VCS (RVCS) to enhance the embedding information efficiency of the secret near 100% by recursively hiding the secret images. Also, an authentication of images using RVCS was proposed. In this article, we look closely at this authentication of images. Our experimental results show that the scheme will leak out the secret information.
authentication visual cryptography scheme (vcs) recursive vcs (rvcs) secret sharing scheme