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Phishing remains one of the most prevalent online threats, exploiting human trust to harvest sensitive credentials. Existing URL- and HTML-based detection systems struggle against obfuscation and visual deception. This paper presents…

密码学与安全 · 计算机科学 2025-12-09 Md Abdul Ahad Minhaz , Zannatul Zahan Meem , Md. Shohrab Hossain

This report gives a novel technique of image encryption and authentication by combining elements of Visual Cryptography and Public Key Cryptography. A prominent attack involving generation of fake shares to cheat honest users has been…

密码学与安全 · 计算机科学 2017-11-27 Rahul Saranjame , Manik Lal Das

The Internet of Things (IoT) is increasingly empowering people with an interconnected world of physical objects ranging from smart buildings to portable smart devices such as wearables. With recent advances in mobile sensing, wearables have…

密码学与安全 · 计算机科学 2019-07-16 Sudip Vhaduri , Christian Poellabauer

As smart wearable devices become increasingly powerful and pervasive, protecting user privacy on these devices has emerged as a critical challenge. While existing authentication mechanisms are available for interaction-rich devices such as…

Considering computer systems, security is the major concern with usability. Security policies need to be developed to protect information from unauthorized access. Passwords and secrete codes used between users and information systems for…

密码学与安全 · 计算机科学 2014-02-27 Sharayu A. Aghav , RajneeshKaur Bedi

Despite significant advancements in image matting, existing models heavily depend on manually-drawn trimaps for accurate results in natural image scenarios. However, the process of obtaining trimaps is time-consuming, lacking…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Chenyi Zhang , Yihan Hu , Henghui Ding , Humphrey Shi , Yao Zhao , Yunchao Wei

In this paper, we explore graphical passwords as a child-friendly alternative for user authentication. We evaluate the usability of three variants of the PassTiles graphical password scheme for children, and explore the similarities and…

人机交互 · 计算机科学 2016-11-01 Hala Assal , Ahsan Imran , Sonia Chiasson

Various methods have been proposed for authentication, including password or pattern drawing, which is clearly visible on personal electronic devices. However, these methods of authentication are more vulnerable, as passwords and cards can…

图像与视频处理 · 电气工程与系统科学 2021-02-11 Donya Khaledyan , Mohammad Eshghi , Morteza Heidari , Abolfazl Zargari Khuzani , Najmeh Mashhadi

The rapid evolution in mobile devices and communication technology has increased the number of mobile device users dramatically. The mobile device has replaced many other devices and is used to perform many tasks ranging from establishing a…

密码学与安全 · 计算机科学 2018-02-14 Belal Amro

Without requiring objects to carry any transceiver, device-free based object tracking provides a promising solution for many localization and tracking systems to monitor non-cooperative objects such as intruders. However, existing…

网络与互联网体系结构 · 计算机科学 2013-09-02 Jinsong Han , Chen Qian , Dan Ma , Xing Wang , Jizhong Zhao , Pengfeng Zhang , Wei Xi , Zhiping Jiang

In this paper, a new behavioral biometric password based on haptic interaction is described. This "haptic password" system is built on a device that has a force-sensitive screen. The user authentication process leverages maximal overlap…

密码学与安全 · 计算机科学 2020-10-28 Junjie Yan , Tamara Bonaci , Howard Jay Chizeck

We propose and evaluate an authentication scheme that improves usability and user experience issues in the authentication process due to its reliance on people's aesthetic tastes and preferences. The scheme uses aesthetic images to verify…

人机交互 · 计算机科学 2022-04-13 Noam Tractinsky , Denis Klimov

Despite being more secure and strongly promoted, two-factor (2FA) or multi-factor (MFA) schemes either fail to protect against recent phishing threats such as real-time MITM, controls/relay MITM, malicious browser extension-based phishing…

密码学与安全 · 计算机科学 2024-06-14 Sneha Shukla , Gaurav Varshney , Shreya Singh , Swati Goel

Backdoor attack aims to compromise a model, which returns an adversary-wanted output when a specific trigger pattern appears yet behaves normally for clean inputs. Current backdoor attacks require changing pixels of clean images, which…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Yusheng Guo , Nan Zhong , Zhenxing Qian , Xinpeng Zhang

Biometric systems based on Machine learning and Deep learning are being extensively used as authentication mechanisms in resource-constrained environments like smartphones and other small computing devices. These AI-powered facial…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Mohit Raghavendra , Pravan Omprakash , B R Mukesh , Sowmya Kamath

As a primary encryption primitive balancing the privacy and searchability of cloud storage images, thumbnail preserving encryption (TPE) enables users to quickly identify the privacy personal image on the cloud and request this image from…

密码学与安全 · 计算机科学 2025-04-09 Dong Xie , Zhiyang Li , Shuangxi Guo , Fulong Chen , Peng Hu

Previous Web access authentication systems often use either the Web or the Mobile channel individually to confirm the claimed identity of the remote user. This paper proposes a new protocol using multifactor authentication system that is…

密码学与安全 · 计算机科学 2011-11-15 Ayu Tiwari , Sudip Sanyal , Ajith Abraham , Svein Johan Knapskog , Sugata Sanyal

Photoplethysmography (PPG) Sensors, widely deployed in smartwatches, offer a simple and non-invasive authentication approach for daily use. However, PPG authentication faces reliability issues due to motion artifacts from physical activity…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Jiankai Tang , Jiacheng Liu , Renling Tong , Kai Zhu , Zhe Li , Xin Yi , Junliang Xing , Yuanchun Shi , Yuntao Wang

One-time login process in conventional authentication systems does not guarantee that the identified user is the actual user throughout the session. However, it is necessary to re-verify the user identity periodically throughout a login…

密码学与安全 · 计算机科学 2018-03-07 Abbas Acar , Hidayet Aksu , A. Selcuk Uluagac , Kemal Akkaya

This work focuses on the problem of detection and prevention of stolen and misused secrets (such as private keys) for authentication toward centralized services. We propose a solution for such a problem based on the blockchain-based…

密码学与安全 · 计算机科学 2022-11-08 Jozef Drga , Ivan Homoliak , Juraj Vančo , Martin Perešíni , Petr Hanáček