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Text-based password schemes have inherent security and usability problems, leading to the development of graphical password schemes. However, most of these alternate schemes are vulnerable to spyware attacks. We propose a new scheme, using…

Cryptography and Security · Computer Science 2016-11-18 Liming Wang , Xiuling Chang , Zhongjie Ren , Haichang Gao , Xiyang Liu , Uwe Aickelin

We propose a biometric identification system where the chosen- and generated-secret keys are used simultaneously, and investigate its fundamental limits from information-theoretic perspectives. The system consists of two phases: enrollment…

Information Theory · Computer Science 2023-03-22 Vamoua Yachongka , Hideki Yagi

We propose Secure Pick Up (SPU), a convenient, lightweight, in-device, non-intrusive and automatic-learning system for smartphone user authentication. Operating in the background, our system implicitly observes users' phone pick-up…

Cryptography and Security · Computer Science 2017-08-31 Wei-Han Lee , Xiaochen Liu , Yilin Shen , Hongxia Jin , Ruby B. Lee

Traditional authentication systems that rely on simple passwords, PIN numbers or tokens have many security issues, like easily guessed passwords, PIN numbers written on the back of cards, etc. Thus, biometric authentication methods that…

Cryptography and Security · Computer Science 2021-09-08 Richard Brown , Gueltoum Bendiab , Stavros Shiaeles , Bogdan Ghita

Authentication and authorization are two tightly coupled and interrelated concepts which are used to keep transactions secure and help in protecting confidential information. This paper proposes to evaluate the current techniques used for…

Cryptography and Security · Computer Science 2011-04-22 K. Lakshmi Madhuri , T. R. Gopalakrishnan Nair

Choosing authentication schemes for a specific purpose is challenging for service providers, developers, and researchers. Previous ratings of technical and objective aspects showed that available schemes all have strengths and limitations.…

Human-Computer Interaction · Computer Science 2022-09-29 Verena Zimmermann , Paul Gerber , Alina Stöver

In recent times, a necessity has been raised in order to distribute computing applications often across grids. These applications are dependent on the services like data transfer or data portal services as well as submission of jobs.…

Cryptography and Security · Computer Science 2010-01-13 V. Ruckmani , Dr G Sudha Sadasivam

Implicit authentication consists of a server authenticating a user based on the user's usage profile, instead of/in addition to relying on something the user explicitly knows (passwords, private keys, etc.). While implicit authentication…

Cryptography and Security · Computer Science 2015-03-03 Josep Domingo-Ferrer , Qianhong Wu , Alberto Blanco-Justicia

Many online shops offer functionality that help their customers navigate the available alternatives. For instance, options to filter and to sort goods are wide-spread. In this paper we show that sorting and filtering can be used by rational…

Theoretical Economics · Economics 2021-09-10 Paulo Oliva , Philipp Zahn

Sharkzor is a web application for machine-learning assisted image sort and summary. Deep learning algorithms are leveraged to infer, augment, and automate the user's mental model. Initially, images uploaded by the user are spread out on a…

Human-Computer Interaction · Computer Science 2018-02-16 Meg Pirrung , Nathan Hilliard , Artëm Yankov , Nancy O'Brien , Paul Weidert , Courtney D Corley , Nathan O Hodas

Faceted browsing is a commonly supported feature of user interfaces for access to information. Existing interfaces generally treat facet values selected by a user as hard filters and respond to the user by only displaying information items…

Information Retrieval · Computer Science 2020-02-21 Yinan Zhang , Parikshit Sondhi , Anjan Goswami , ChengXiang Zhai

We have designed and developed a simple, visual, and narrative K-12 cybersecurity curriculum leveraging the Scratch programming platform to demonstrate and teach fundamental cybersecurity concepts such as confidentiality, integrity…

Cryptography and Security · Computer Science 2023-02-24 Pranathi Rayavaram , Sreekriti Sista , Ashwin Jagadeesha , Justin Marwad , Nathan Percival , Sashank Narain , Claire Seungeun Lee

Password authentication is a common approach to the system security and it is also a very important procedure to gain access to user resources. In the conventional password authentication methods a server has to authenticate the legitimate…

Cryptography and Security · Computer Science 2011-10-10 ASN Chakravarthy , Prof. P S Avadhani

Search queries are appropriate when users have explicit intent, but they perform poorly when the intent is difficult to express or if the user is simply looking to be inspired. Visual browsing systems allow e-commerce platforms to address…

Information Retrieval · Computer Science 2018-10-04 Choon Hui Teo , Houssam Nassif , Daniel Hill , Sriram Srinavasan , Mitchell Goodman , Vijai Mohan , SVN Vishwanathan

Diffusion-based text-to-image personalization have achieved great success in generating subjects specified by users among various contexts. Even though, existing finetuning-based methods still suffer from model overfitting, which greatly…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Henglei Lv , Jiayu Xiao , Liang Li , Qingming Huang

Personalized fashion recommendation is a difficult task because 1) the decisions are highly correlated with users' aesthetic appetite, which previous work frequently overlooks, and 2) many new items are constantly rolling out that cause…

Information Retrieval · Computer Science 2025-01-07 Chongxian Chen , Fan Mo , Xin Fan , Hayato Yamana

Password authentication is a very important system security procedure to gain access to user resources. In the Traditional password authentication methods a server has check the authenticity of the users. In our proposed method users can…

Cryptography and Security · Computer Science 2011-12-13 A. S. N. Chakravarthy , Penmetsa V. Krishna Raja , Prof. P. S. Avadhani

Traditional database access control mechanisms use role based methods, with generally row based and attribute based constraints for granularity, and privacy is achieved mainly by using views. However if only a set of views according to…

Databases · Computer Science 2014-07-18 Ugur Turan , Ismail Hakki Toroslu

The paper presents an authentication scheme for remote systems using smart card. The scheme prevents the scenario of many logged in users with the same login identity, and does not require password/verifier table to validate the users'…

Cryptography and Security · Computer Science 2008-01-04 Manik Lal Das

The description of complex configuration is a difficult issue. We present a powerful technique for cluster identification and characterization. The scheme is designed to treat with and analyze the experimental and/or simulation data from…

Statistical Mechanics · Physics 2013-08-29 Guangcai Zhang , Aiguo Xu , Guo Lu , Zeyao Mo