图形密码认证在移动设备上的设计与实现

发布时间：2018-01-08 20:05

本文关键词：图形密码认证在移动设备上的设计与实现　出处：《内蒙古大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着互联网的迅猛发展以及网民数量的日益增多,密码认证成为人们在互联网应用中常用的安全手段。传统的文本密码有诸多不安全的因素,图形密码相较于文本密码有更大的发展空间。本文综合考虑安全、交互和记忆等因素,设计并实现了一个在移动设备上应用换装图形密码认证系统。论文的主要研究工作如下:(1)提出了一个新颖的换装图形密码认证方案。通过分析传统文本密码的利弊,结合密码认证的实际应用场景,再对比分析现有的图形密码方案,如DAS方案、PassPoints方案、人机互动系统等,我们提出了换装图形密码认证方案。(2)设计实现了换装图形密码认证方案的原型系统。换装图形密码认证方案是用户通过对系统人物的上衣、裤装、鞋子、手提包等时尚元素的选择、记忆和复现,实现身份认证的过程。根据换装图形密码认证场景,完善交互细节,设计原型系统。(3)在原型系统基础上提高了机密性、可用性和可扩展性。第一,用户换装操作的选择被编码生成密码,密码存储前会通过SHA1算法进行哈希处理。第二,该系统中设计了多种模式和难度供用户选择。第三,会把该系统应用于不同的移动设备,如安卓手机、安卓平板等。(4)对实现的换装图形密码认证系统进行了评估。首先,评估该系统认证过程耗用的平均时间、密码的平均长度以及认证成功的概率。其次,验证该系统在不同移动设备上的性能,例如在不同型号的安卓手机及平板电脑上进行测试。最后,对该换装图形密码与文本密码及其他图形密码的实验结果进行比较分析。
[Abstract]:With the increase of the amount of the rapid development of Internet and Internet users, password authentication become Security techniques used in Internet application. Traditional text password has many unsafe factors, compared to the graphical password password text has more room for development. Considering the safety factors, interaction and memory, design and implementation in a mobile device application installed graphical password authentication system. The main works of this paper are as follows: (1) proposed a new facelift graphical password authentication scheme. By analyzing the advantages and disadvantages of the traditional text password, application scenarios with password authentication, and then compared the existing graphical password scheme, such as the DAS program PassPoints, program, human-computer interaction system, we propose a facelift graphical password authentication scheme. (2) the design and implementation of a prototype system with graphical password authentication scheme. Install graphical password authentication scheme is the user through the system character of the shirt, pants, shoes, handbags and other fashion elements selection, memory and repetition, the realization of the identity authentication process. According to the change of graphical password authentication scenes, perfect interaction detail design prototype system. (3) in the prototype system based on improved confidentiality, availability and scalability. First, user selection is encoding operation change password generation, will hash processing by SHA1 algorithm. The password is stored before second, the system design of a variety of modes and the difficulty for users to choose. Third, the application of the system in different mobile devices, such as mobile phone Android, Android tablet etc.. (4) to change graphical password authentication system was evaluated. Firstly, the system certification process to assess the average time consumed, the average length of password and authentication success probability. Secondly, the verification system The performance of the system is tested on different mobile devices, for example, on different types of Android mobile phones and tablet computers. Finally, the experimental results of the graphic password and text passwords and other graphic passwords are compared and analyzed.

【学位授予单位】：内蒙古大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.08

【相似文献】