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200 papers

In this paper we proposed an authentication technique based on the user cards, to improve the authentication process in systems that allows remote access for the users, and raise the security rate during an exchange of their messages. in…

Cryptography and Security · Computer Science 2021-08-17 Ibrahim Obeidat , Ahmed AL Arjan , Rula AL Amrat , Rathaa AL Ajmi

Credit risk modeling has permeated our everyday life. Most banks and financial companies use this technique to model their clients' trustworthiness. While machine learning is increasingly used in this field, the resulting large-scale…

Cryptography and Security · Computer Science 2020-10-07 Yuli Zheng , Zhenyu Wu , Ye Yuan , Tianlong Chen , Zhangyang Wang

Privacy enhancing technologies, or PETs, have been hailed as a promising means to protect privacy without compromising on the functionality of digital services. At the same time, and partly because they may encode a narrow conceptualization…

Cryptography and Security · Computer Science 2023-12-06 Ero Balsa , Yan Shvartzshnaider

With the increasing use of online services, the protection of the privacy of users becomes more and more important. This is particularly critical as authentication and authorization as realized on the Internet nowadays, typically relies on…

Cryptography and Security · Computer Science 2025-03-05 Daniel Slamanig

Consumers frequently interact with reputation systems to rate products, services, and deliveries. While past research extensively studied different conceptual approaches to realize such systems securely and privacy-preservingly, these…

Cryptography and Security · Computer Science 2023-11-03 Lennart Bader , Jan Pennekamp , Emildeon Thevaraj , Maria Spiß , Salil S. Kanhere , Klaus Wehrle

This paper address a new problem in RFID authentication research for the first time. That is, existing RFID authentication schemes generally assume that the backend server is absolutely secure, however, this assumption is rarely tenable in…

Cryptography and Security · Computer Science 2014-05-01 Wei Xie , Chen Zhang , Quan Zhang , Chaojing Tang

Security monitoring via ubiquitous cameras and their more extended in intelligent buildings stand to gain from advances in signal processing and machine learning. While these innovative and ground-breaking applications can be considered as…

Cryptography and Security · Computer Science 2026-05-06 Mehmet Yamac , Mete Ahishali , Nikolaos Passalis , Jenni Raitoharju , Bulent Sankur , Moncef Gabbouj

Real-time, online-editing web apps provide free and convenient services for collaboratively editing, sharing and storing files. The benefits of these web applications do not come for free: not only do service providers have full access to…

Cryptography and Security · Computer Science 2019-11-19 Yihao Hu , Ari Trachtenberg , Prakash Ishwar

The trend towards delegating data processing to a remote party raises major concerns related to privacy violations for both end-users and service providers. These concerns have attracted the attention of the research community, and several…

Cryptography and Security · Computer Science 2015-12-15 Youssef Gahi , Mouhcine Guennoun , Zouhair Guennoun , Khalil El-khatib

Risk-based authentication (RBA) extends authentication mechanisms to make them more robust against account takeover attacks, such as those using stolen passwords. RBA is recommended by NIST and NCSC to strengthen password-based…

Cryptography and Security · Computer Science 2023-01-05 Stephan Wiefling , Jan Tolsdorf , Luigi Lo Iacono

The growing popularity of digital systems have paved the way for digital locker that ensures security and safety of the digital documents in store. While facilitating this system to user and availing its services offered by service…

Cryptography and Security · Computer Science 2018-10-22 Atrayee Deb , Saloni Dalal , Manik Lal Das

The Internet of Things (IoT) will be a main data generation infrastructure for achieving better system intelligence. However, the extensive data collection and processing in IoT also engender various privacy concerns. This paper provides a…

Cryptography and Security · Computer Science 2019-09-24 Mengyao Zheng , Dixing Xu , Linshan Jiang , Chaojie Gu , Rui Tan , Peng Cheng

We need to rethink our approach to defend privacy on the internet. Currently, policymakers focus heavily on the idea of informed consent as a means to defend privacy. For instance, in many countries the law requires firms to obtain an…

Computers and Society · Computer Science 2025-12-08 Frederik Zuiderveen Borgesius

Online services such as web search and e-commerce applications typically rely on the collection of data about users, including details of their activities on the web. Such personal data is used to enhance the quality of service via…

Artificial Intelligence · Computer Science 2014-04-23 Adish Singla , Eric Horvitz , Ece Kamar , Ryen White

Loyalty programs are promoted by vendors to incentivize loyalty in buyers. Although such programs have become widespread, they have been criticized by business experts and consumer associations: loyalty results in profiling and hence in…

Cryptography and Security · Computer Science 2014-12-02 Alberto Blanco-Justicia , Josep Domingo-Ferrer

The foreseen growing role of outsourced machine learning services is raising concerns about the privacy of user data. Several technical solutions are being proposed to address the issue. Hardware security modules in cloud data centres…

Cryptography and Security · Computer Science 2019-10-07 Marc Joye , Fabien A. P. Petitcolas

We consider the problem of property testing for differential privacy: with black-box access to a purportedly private algorithm, can we verify its privacy guarantees? In particular, we show that any privacy guarantee that can be efficiently…

Cryptography and Security · Computer Science 2019-02-14 Anna Gilbert , Audra McMillan

Even though cloud computing provides many intrinsic benefits, privacy concerns related to the lack of control over the storage and management of the outsourced data still prevent many customers from migrating to the cloud. Several…

Cryptography and Security · Computer Science 2017-07-07 David Sánchez , Montserrat Batet

Along with the development of internet of things and pervasive computing, researchers are increasingly focusing on server-less RFID authentication and searching protocols, which utilize mobile RFID readers. However, revealing privacy of…

Cryptography and Security · Computer Science 2014-05-01 Wei Xie , Chen Zhang , Quan Zhang , Chaojing Tang

Secure orchestration is an important concern in the internet of service. Next to providing the required functionality the composite services must also provide a reasonable level of security in order to protect sensitive data. Thus, the…

Cryptography and Security · Computer Science 2012-12-18 Gabriele Costa , Fabio Martinelli , Artsiom Yautsiukhin