一种新型多笔画系统推荐图形密码方案  

A NEW MULTI-STROKE SYSTEM RECOMMENDED GRAPHIC PASSWORD SCHEME

作　　者：袁清厚 李敬文[1] Yuan Qinghou;Li Jingwen(School of Electronic and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China)

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《计算机应用与软件》2023年第12期312-317,343,共7页Computer Applications and Software

基　　金：国家自然科学基金项目(11461038,61163010);兰州交通大学青年基金项目(2016014)。

摘　　要：由图形密码的使用情况可知图形密码的安全性存在致命的问题,即易被攻击者破解,为解决现有图形密码安全问题,设计一种新型多笔画系统推荐图形密码方案(Multi-stroke system recommended graphic password,MSSRGP)。该方案中系统图形密码的图形是连通或非连通的有向图且系统推荐图形密码模式采用一对一模式,若某个图形密码已被用户选择,则系统不会推荐该图形密码,提高了抵御暴力破解和字典攻击的能力。针对图形密码验证方案中的实用性和安全性,组织兰州交通大学计算机专业的同学测试密码,对采集测试数据进行分析,可知MSSRGP方案在2笔画和3笔画中具有很好的实用性和较高的认可率。According to usage status of graphical passwords,there is a fatal problem in the security of graphical passwords that it is easy to be attacked.In order to solve this problem,a new multi-stroke system recommended graphic password scheme(MSSRGP)is designed.In this scheme,the graphics of the graphics password of system were connected or non-connected directed graphs and the graphical password mode recommended by system was one-to-one mode.If a certain graphic password was selected by the user,it would not be recommended by the system,which improved the ability to resist brute force attacks and dictionary attacks.To verify the practicality and security in graphical password schemes,students majoring in computer were organized to test password and analyze the collected test data.The results show that the MSSRGP scheme has good practicability and high recognition rate when its graphical password has 2 strokes and 3 strokes.

关 键 词：图形密码 多笔画 有向图 系统推荐 一对一模式 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]