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In the current paradigm of digital personalized services, the centralized management of personal data raises significant privacy concerns, security vulnerabilities, and diminished individual autonomy over sensitive information. Despite…

Cryptography and Security · Computer Science 2025-09-12 Osama Zafar , Mina Namazi , Yuqiao Xu , Youngjin Yoo , Erman Ayday

Current architectures to validate, certify, and manage identity are based on centralised, top-down approaches that rely on trusted authorities and third-party operators. We approach the problem of digital identity starting from a human…

Computers and Society · Computer Science 2020-02-26 Geoff Goodell , Tomaso Aste

With the rapid development of applications in open distributed environments such as eCommerce, privacy of information is becoming a critical issue. Today, many online companies are gathering information and have assembled sophisticated…

Software Engineering · Computer Science 2015-01-21 Abdulsalam Yassine

With the latest developments in technology, extra and extra human beings depend on their private gadgets to keep their touchy information. Concurrently, the surroundings in which these gadgets are linked have grown to grow to be greater…

Cryptography and Security · Computer Science 2021-09-08 Rushit Dave

In this paper we present reclaimID: An architecture that allows users to reclaim their digital identities by securely sharing identity attributes without the need for a centralised service provider. We propose a design where user attributes…

Cryptography and Security · Computer Science 2018-09-11 Martin Schanzenbach , Georg Bramm , Julian Schütte

In a traditional cloud storage system, users benefit from the convenience it provides but also take the risk of certain security and privacy issues. To ensure confidentiality while maintaining data sharing capabilities, the…

Cryptography and Security · Computer Science 2023-09-11 Jingchi Zhang , Anwitaman Datta

Digitisation is often viewed as beneficial to a user. Whereas traditionally, people would physically have to identify to a service, pay for a ticket in cash, or go into a library to access a book, people can now achieve all of this through…

Computers and Society · Computer Science 2024-11-20 Oscar King , Geoffrey Goodell

In this paper, we introduce a data capsule model, a self-contained and self-enforcing data container based on emerging self-sovereign identity standards, blockchain, and attribute-based encryption. A data capsule allows for a transparent,…

Cryptography and Security · Computer Science 2022-02-17 Reza Soltani , Uyen Trang Nguyen , Aijun An

In recent years, electronic retail payment mechanisms, especially e-commerce and card payments at the point of sale, have increasingly replaced cash in many developed countries. As a result, societies are losing a critical public retail…

Computers and Society · Computer Science 2021-05-28 Geoffrey Goodell , Hazem Danny Al-Nakib , Paolo Tasca

This paper introduces the notion of a secure data capsule, which refers to an encapsulation of sensitive user information (such as a credit card number) along with code that implements an interface suitable for the use of such information…

Cryptography and Security · Computer Science 2010-02-02 Jayanthkumar Kannan , Petros Maniatis , Byung-Gon Chun

Attribute-based encryption is a form of encryption which offers the capacity to encrypt data such that it is only accessible to individuals holding a satisfactory configuration of attributes. As cloud and distributed computing become more…

Cryptography and Security · Computer Science 2017-05-18 Aubrey Alston

Attribute-based encryption (ABE) is a promising cryptographic mechanism for providing confidentiality and fine-grained access control in the cloud-based area. However, due to high computational overhead, common ABE schemes are not suitable…

Cryptography and Security · Computer Science 2021-07-22 Mostafa Chegenizadeh , Mohammad Ali , Javad Mohajeri , Mohammad Reza Aref

The management of sensitive data, including identity management (IDM), is an important problem in cloud computing, fundamental for authentication and fine-grained service access control. Our goal is creating an efficient and robust IDM…

Cryptography and Security · Computer Science 2019-04-02 Akram Sarhan , Leszek Lilien

The proliferation of online biometric authentication has necessitated security requirements of biometric templates. The existing secure biometric authentication schemes feature a server-centric model, where a service provider maintains a…

Cryptography and Security · Computer Science 2017-11-15 Kai Zhou , Jian Ren

The identity problem today is a data-sharing problem. Today the fixed attributes approach adopted by the consumer identity management industry provides only limited information about an individual, and therefore is of limited value to the…

Computers and Society · Computer Science 2017-10-25 Thomas Hardjono , Sandy Pentland

Data security, which is concerned with the prevention of unauthorized access to computers, databases, and websites, helps protect digital privacy and ensure data integrity. It is extremely difficult, however, to make security watertight,…

Cryptography and Security · Computer Science 2018-01-03 Marten Lohstroh

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

This paper presents an architecture of a Personal Information Management System, in which individuals can define the access to their personal data by means of smart contracts. These smart contracts, running on the Ethereum blockchain,…

Cryptography and Security · Computer Science 2021-01-27 Mirko Zichichi , Stefano Ferretti , Gabriele D'Angelo , Víctor Rodríguez-Doncel

A unique identification for citizens can lead to effective governance to manage and provide citizen-centric services. While ensuring this service, privacy of the citizens needs to be preserved. Aadhaar, the identification system by UIDAI…

Cryptography and Security · Computer Science 2020-12-09 Yash Mehta , Dev Patel , Manik Lal Das

The tremendous technological advancement in the last few decades has brought many enterprises to collaborate in a better way while making intelligent decisions. The use of Information Technology tools in obtaining data of people's everyday…

Cryptography and Security · Computer Science 2025-10-29 Ajay Kumar Shrestha , Ralph Deters , Julita Vassileva