图形密码启动方法的研究
A Study on Priming Methods for Graphical Passwords
摘要：
最近的研究表明，一种称为呈现效应的轻推或启动技术可能会提高PassPoints风格图形密码的安全性。这些推动试图引导或非侵入性地偏向用户密码选择（即，点选择）通过在密码创建时逐渐显示从特定边缘到另一边缘的背景图像。我们进行了一项大规模的用户研究（n=710），以进一步了解这种影响的存在，并对其安全影响进行首次评估。我们使用返回所有三个会话的参与者的子集（n=100）来探索这种效果的可用性影响。我们的可用性分析表明，这些启动技术不会损害可用性。我们的安全性分析表明，启动技术可以显着提高图形密码的安全性，但是，这种效果是依赖于图像和启动技术的组合使用。
英文摘要：
Recent work suggests that a type of nudge or priming technique called the presentation effect may potentially improve the security of PassPoints-style graphical passwords. These nudges attempt to prime or non-intrusively bias user password choices (i.e., point selections) by gradually revealing a background image from a particular edge to another edge at password creation time. We conduct a large-scale user study (n=710) to develop further insights into the presence of this effect and to perform the first evaluations of its security impacts. We explore the usability impacts of this effect using the subset (n=100) of participants who returned for all three sessions. Our usability analyses indicate that these priming techniques do not harm usability. Our security analyses reveal that the priming techniques can measurably enhance the security of graphical passwords; however, this effect is dependent on the combination of both the image and priming techniques used.
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