Visual Secret Sharing Schemes for Multiple Secret Images Allowing the Rotation of Shares*This paper was presented in part at Symposium on Cryptography and Information Secrity and Symposium on Information Theory and Its Applications, 2005.

  • Authors:

  • Mitsugu Iwamoto;Lei Wang;Kazuki Yoneyama;Noboru Kunihiro;Kazuo Ohta

  • Affiliations:

  • The author is with the Graduate School of Information Systems, University of Electro-Communications, Chofu-shi, 182-8585 Japan. E-mail: mitsugu@hn.is.uec.ac.jp,;The author is with the School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, P.R.China.,;The authors are with the Graduate School of Electro-Communications, University of Electro-Communications, Chofu-shi, 182-8585 Japan.;The authors are with the Graduate School of Electro-Communications, University of Electro-Communications, Chofu-shi, 182-8585 Japan.;The authors are with the Graduate School of Electro-Communications, University of Electro-Communications, Chofu-shi, 182-8585 Japan.

  • Venue:
  • IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
  • Year:
  • 2006

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Abstract

In this paper, a method is proposed to construct a visual secret sharing (VSS) scheme for multiple secret images in which each share can be rotated with 180 degrees in decryption. The proposed VSS scheme can encrypt more number of secret images compared with the normal VSS schemes. Furthermore, the proposed technique can be applied to the VSS scheme that allows to turn over some shares in decryption. From the theoretical point of view, it is interesting to note that such VSS schemes cannot be obtained from so-called basis matrices straightforwardly.