基于操作式方案的视觉密码可验证性研究  

Verifiability of Visual Cryptography Based on Operating Scheme

作　　者：樊攀星[1] 严承华[1] 程晋[1] 

机构地区：[1]海军工程大学信息安全系,武汉430033

出　　处：《计算机与数字工程》2013年第6期955-958,共4页Computer & Digital Engineering

基　　金：全军军事学研究生课题(编号:2011JY002-435);中国博士后基金特别项目(编号:201003757)资助

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 cryptog- raphy 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 scheme. The scheme solves the security problems exist in the visual cryptogra- phy scheme, and through improved it can be applied to identity authentication or the other fields of information security.

关 键 词：视觉密码 操作式多秘密分享方案 验证标识 消息摘要算法 授权集 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]