摘要： Naor和Shamir[1]提出的可视密码方案(VCS)是一种将秘密黑白图像加密到不同分享中的秘密分享方案,并且无须计算即可进行解密。但是如果在解密过程中欺骗者提供了伪造的分享,秘密图像的解密将失败。该文给出了一种新的构造方法,可找出解密过程中的欺骗者。

关键词: 可视密码, 秘密分享, 欺骗者

Abstract: The visual cryptography scheme(VCS) presented by Naor and Shamir[1] provides a method to encrypt a black-white image to different shares and decrypt the secret without any computations. But if there is a cheater who gives a faked share in the decrypting process, the secret image will fail to be decrypted.this paper gives a construction , which can find out who is the cheater in the decrypting process.

中图分类号: 

• TP309.7