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Two-factor authentication (2F) aims to enhance resilience of password-based authentication by requiring users to provide an additional authentication factor, e.g., a code generated by a security token. However, it also introduces…

密码学与安全 · 计算机科学 2014-02-03 Emiliano De Cristofaro , Honglu Du , Julien Freudiger , Greg Norcie

In today's technology-driven world, web services have opened up new opportunities for blind and visually impaired people to interact independently. Securing interactions with these services is crucial; however, currently deployed…

密码学与安全 · 计算机科学 2026-03-10 Md Mojibur Rahman Redoy Akanda , Ahmed Tanvir Mahdad , Nitesh Saxena

To prevent password breaches and guessing attacks, banks increasingly turn to two-factor authentication (2FA), requiring users to present at least one more factor, such as a one-time password generated by a hardware token or received via…

密码学与安全 · 计算机科学 2015-01-20 Kat Krol , Eleni Philippou , Emiliano De Cristofaro , M. Angela Sasse

The digital age requires strong security measures to protect online activities. Two-Factor Authentication (2FA) has emerged as a critical solution. However, its implementation presents significant challenges, particularly in terms of…

密码学与安全 · 计算机科学 2025-02-18 Alexander Lengert

Managing passwords securely and conveniently is still an open problem for many users. Existing research has examined users' password management strategies and identified pain points, such as security concerns, leading to insecure practices.…

密码学与安全 · 计算机科学 2025-10-16 Alexander Ponticello , Filipo Sharevski , Simon Anell , Katharina Krombholz

Security vulnerabilities of traditional single factor authentication has become a major concern for security practitioners and researchers. To mitigate single point failures, new and technologically advanced Multi-Factor Authentication…

密码学与安全 · 计算机科学 2019-08-19 Sanchari Das , Bingxing Wang , Zachary Tingle , L. Jean Camp

We propose a two-factor authentication (2FA) mechanism called 2D-2FA to address security and usability issues in existing methods. 2D-2FA has three distinguishing features: First, after a user enters a username and password on a login…

密码学与安全 · 计算机科学 2021-11-01 Maliheh Shirvanian , Shashank Agrawal

Risk-based Authentication (RBA) is an adaptive security measure to strengthen password-based authentication. RBA monitors additional features during login, and when observed feature values differ significantly from previously seen ones,…

密码学与安全 · 计算机科学 2020-10-02 Stephan Wiefling , Markus Dürmuth , Luigi Lo Iacono

With the ever-growing expansion of mobile technology worldwide, there is an increasing need for accommodation for those who are disabled. This project explores how machine learning and computer vision could be utilized to improve…

人机交互 · 计算机科学 2024-04-02 Jasur Shukurov

Passwords remain a widely-used authentication mechanism, despite their well-known security and usability limitations. To improve on this situation, next-generation authentication mechanisms, based on behavioral biometric factors such as eye…

密码学与安全 · 计算机科学 2025-05-06 Matin Fallahi , Patricia Arias Cabarcos , Thorsten Strufe

Multi-Factor Authentication is intended to strengthen the security of password-based authentication by adding another factor, such as hardware tokens or one-time passwords using mobile apps. However, this increased authentication security…

密码学与安全 · 计算机科学 2023-09-20 Sabrina Amft , Sandra Höltervennhoff , Nicolas Huaman , Alexander Krause , Lucy Simko , Yasemin Acar , Sascha Fahl

As people store more personal data in their smartphones, the consequences of having it stolen or lost become an increasing concern. A typical counter-measure to avoid this risk is to set up a secret code that has to be entered to unlock the…

人机交互 · 计算机科学 2015-06-03 Diogo Marques , Luís Carriço , Tiago Guerreiro

Mobile authentication is indispensable for preventing unauthorized access to multi-touch mobile devices. Existing mobile authentication techniques are often cumbersome to use and also vulnerable to shoulder-surfing and smudge attacks. This…

密码学与安全 · 计算机科学 2014-02-07 Jingchao Sun , Rui Zhang , Jinxue Zhang , Yanchao Zhang

Heuristics for user experience state that users will transfer their expectations from one product to another. A lack of consistency between products can increase users' cognitive friction, leading to frustration and rejection. This paper…

密码学与安全 · 计算机科学 2022-10-19 Sanam Ghorbani Lyastani , Michael Backes , Sven Bugiel

Mobile device users avoiding observational attacks and coping with situational impairments may employ techniques for eyes-free mobile unlock authentication, where a user enters his/her passcode without looking at the device. This study…

人机交互 · 计算机科学 2018-06-01 Flynn Wolf , Adam J. Aviv , Ravi Kuber

User authentication is one of the most important part of information security. Computer security most commonly depends on passwords to authenticate human users. Password authentication systems will be either been usable but not secure, or…

密码学与安全 · 计算机科学 2013-11-19 Gloriya Mathew , Shiney Thomas

Two-factor authentication protects online accounts even if passwords are leaked. Most users, however, prefer password-only authentication. One reason why two-factor authentication is so unpopular is the extra steps that the user must…

密码学与安全 · 计算机科学 2015-08-04 Nikolaos Karapanos , Claudio Marforio , Claudio Soriente , Srdjan Capkun

This research aims to find where visually impaired users find appliances hard to use and suggest guideline to solve this issue. 181 visually impaired users have been surveyed, and 12 visually impaired users have been selected based on…

人机交互 · 计算机科学 2024-07-10 Hyunjin An , Hyundoug Kim , Seungwoo Hong , Youngsun Shin

This paper proposes a portable hardware token for user authentication, it is based on the use of keystroke dynamics to verify users in a bio-metric manner. The proposed approach allows for a multifactor authentication scheme in which users…

密码学与安全 · 计算机科学 2019-09-25 Robert Cockell , Basel Halak

User authentication can rely on various factors (e.g., a password, a cryptographic key, biometric data) but should not reveal any secret or private information. This seemingly paradoxical feat can be achieved through zero-knowledge proofs.…

密码学与安全 · 计算机科学 2020-09-15 Laurent Chuat , Sarah Plocher , Adrian Perrig
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