期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2008
卷号：8
期号：4
页码：128-132
出版社：International Journal of Computer Science and Network Security
摘要：This paper presents a new visual cryptography scheme for secure digital transmission. Visual cryptography can be seen as a one-time pad system. Then, it cannot be reused. In this paper, we apply Diffie and Hellman (D-H) key agreement method and toral automorphism (TA) such that visual cryptography can be reused. Both secret and symmetry-key are represented in binary image. The proposed scheme is simple and easy to be implemented for shadow images. Therefore, it can be used in many electronic business applications.
