SaTC: CORE: Medium: Implicit One-handed Mobile User Authentication by Induced Thumb Biometrics on Touch-screen Handheld Devices

人们经常将隐私和敏感数据存储在他们的移动设备上，这些设备的安全性至关重要。该项目提出并开发了一种新的流程，用于验证用户访问移动设备的合法权限。现有的研究并没有使这一过程对许多缺乏灵巧性或双手使用的人来说非常有用。本研究旨在设计并开发一种在触摸屏移动手持设备上进行单手认证的方法。其目标是提高身份验证的安全性和可用性。建议的方法还将以连续的方式检测对移动设备的未经授权访问，即使密码被盗。这项工作的跨学科性质将促进在移动安全和隐私、人机交互、移动可访问性、机器学习和行为科学方面的教学、培训和教育。研究人员将积极吸引研究生和本科生参与他们的研究活动，并努力吸引女性和代表性不足的少数民族。该项目将通过诱导拇指生物识别和支持基于拇指笔划的单手文本输入，在触摸屏移动手持设备上支持单手移动身份验证。该项目将通过以下方式推动认证研究和实践：(1)为单手认证奠定基础，以支持入口点和隐式连续认证；(2)引入一种新的场所，通过诱导和融合用户与触摸屏移动设备交互的拇指生物特征来提高单手认证的安全性；(3)创建新的设计原则，以提高移动认证的可用性；以及(4)通过支持移动触摸屏上的无按键文本输入，解决有情景或视觉障碍的用户的可及性挑战。该项目将提供一种新的解决方案，可以解决移动身份验证方法常见的安全性和可用性之间的权衡。

People often store private and sensitive data on their mobile devices, and the security of these devices is essential. This project advances and develops a new process for verifying a user's legitimate right to access a mobile device. Existing research has not made this process very usable for many people who lack dexterity or the use of both hands. This research aims to design and develop a method for one-handed authentication on a touch-screen mobile handheld device. The objective is to improve both security and usability of authentication. The proposed methods also will detect unauthorized access to a mobile device in a continuous manner, even if the password is stolen. The interdisciplinary nature of this work will promote teaching, training, and education in mobile security and privacy, human-computer interaction, mobile accessibility, machine learning, and behavioral science. The researchers will actively engage students at both graduate and undergraduate levels in their research activities, and make a strong effort to engage women and underrepresented minorities.The project will support one-handed mobile authentication on a touch-screen mobile handheld device by inducing thumb biometrics and by enabling one-handed text entry based on thumb strokes. This project will advance authentication research and practice by: (1) laying the groundwork for one-handed authentication in support of both point-of-entry and implicit continuous authentication; (2) introducing a new venue for improving the security of one-handed authentication by inducing and fusing thumb biometrics from user interactions with a touch-screen mobile device; (3) creating new design principles for improving the usability of mobile authentication; and (4) addressing accessibility challenges for users with situational or visual impairments via the support of keypress-less text entry on a mobile touch screen. This project will lend itself to a new solution that can address the common security-usability tradeoff of mobile authentication methods.