摘要
针对防共谋欺骗可视密码存在像素扩展度大的问题,通过对秘密图像的不同像素列,随机选取不同像素扩展度的加密矩阵进行分享,构造出一种防共谋欺骗可视密码方案。理论与实验结果表明,该方案能够实现防共谋欺骗功能,且参与者不需要持有额外的验证共享份,同时优化了像素扩展度,减小了共享份的存储和传输开销。
To solve the problem of large pixel expansion for anti-collusion deception visual cipher,by randomly selecting the encryption matrix with different pixel expansion for different pixel columns of secret image to share,a scheme of anti-collusion deception visual cryptography is constructed.The theoretical and experimental results show that this scheme can achieve the function of anti-collusion deception,and participants do not need to hold additional verification shares.It optimizes the pixel expansion and reduces the storage and transmission costs of shared shares.
作者
齐向东
姜博
尹乃潇
Qi Xiangdong;Jiang Bo;Yin Naixiao(Netshen Information Technology(Beijing)Incorporated Company,Beijing 100015,China;China Academy of Information and Communications Technology,Beijing 100191,China)
出处
《计算机应用与软件》
北大核心
2021年第6期329-332,349,共5页
Computer Applications and Software
关键词
可视密码
共谋欺骗
加密矩阵
像素扩展度
Visual cryptography
Anti-collusion deception
Encryption matrix
Pixel expansion
