抵抗不诚实参与者欺骗攻击的可验证渐进式秘密图像分享  

Verifiable Progressive Secret Image Sharing to Resist Dishonest Participant Cheating Attacks

作　　者：陈浩[1] 张孟涛 CHEN Hao;ZHANG Meng-Tao(School of Computer Science&School of Cyber Science and Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学计算机学院、网络空间安全学院,南京210044

出　　处：《计算机系统应用》2024年第10期205-216,共12页Computer Systems & Applications

摘　　要：当前渐进式秘密图像分享方案中并没有考虑不诚实参与者的作弊攻击,这使得不诚实的参与者可以利用虚假阴影图像进行欺骗攻击.为了防止后续渐进式重建失败,本文通过将像素的位平面划分为两部分,并使用拉格朗日插值算法以及视觉密码学方案来解决这个问题.通过伪随机数来确定像素位平面的滑动窗口,并通过筛选操作将认证信息嵌入到该滑动窗口中来实现认证能力.除此之外,不同的位平面划分策略可以产生不同的渐进式重建效果,可以实现更加灵活的渐进式重建.理论分析和实验结果表明方案的有效性.Current progressive secret image sharing schemes do not consider cheating attacks by dishonest participants,allowing them to use false shadow images for cheating attacks.To ensure successful progressive reconstruction,this study divides the bit plane of pixels into two parts and uses the Lagrange interpolation algorithm along with visual cryptography schemes to address this issue.The sliding window of the pixel bit plane is determined by a pseudo-random number,and authentication information is embedded into the sliding window through a filtering operation to achieve authentication capability.Additionally,different strategies for bit plane division produce different progressive reconstruction effects,enabling more flexible progressive reconstruction.Theoretical analysis and experimental results both demonstrate the effectiveness of the proposed scheme.

关 键 词：渐进式秘密图像分享 可验证秘密图像分享 阴影图像认证 无损重建 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]