基于操作式方案的视觉密码可验证性研究

摘要

现有的视觉密码算法研究主要基于一种理想的实施环境,在具体的实施时存在安全问题.针对此提出视觉密码方案验证过程,并设计基于操作式多秘密分享方案的验证性视觉密码方案,方案主要采用验证标识与秘密图像不同的授权集来实现,并与消息摘要算法有机结合进一步确保方案的安全性,最后在设计的方案基础上进行实例的设计与仿真.该方案在一定程度上解决了视觉密码方案中存在的安全问题,并且通过改进后可以应用到身份认证等其他信息安全领域.%Existing visual cryptography algorithm is mainly based on ideal environment,so there would be some security problems in the specific implementation.To solve these problems,a verification process in the visual cryptography scheme is proposed,and a visual cryptography scheme is designed based on the verification of the operating multi-secret sharing scheme.The program mainly uses a different set of authorization the authentication identity secret image,and combine with the message digest algorithm further ensure the security of the scheme,the last instance of the design and simulation of the schemc.The scheme solves the security problems exist in the visual cryptography scheme,and through improved it can be applied to identity authentication or the other fields of information security.