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This paper analyses the concept of Self-Sovereign Identity (SSI), an emerging approach for establishing digital identity, in the context of the Internet of Things (IoT). We contrast existing approaches for identity on the Internet, such as…

Cryptography and Security · Computer Science 2020-12-08 Geovane Fedrecheski , Jan M. Rabaey , Laisa C. P. Costa , Pablo C. Calcina Ccori , William T. Pereira , Marcelo K. Zuffo

In the evolving landscape of future mobile networks, there is a critical need for secure and trustful communication modalities to support dynamic interactions among core network components of different network domains. This paper proposes…

Cryptography and Security · Computer Science 2025-09-09 Hai Dinh-Tuan , Sandro Rodriguez Garzon , Jianeng Fu

Zero Trust Architecture (ZTA) represents a transformative approach to modern cybersecurity, directly addressing the shortcomings of traditional perimeter-based security models. With the rise of cloud computing, remote work, and increasingly…

Cryptography and Security · Computer Science 2024-10-25 Mahmud Hasan

The digital identity problem is a complex one in large part because it involves personal data, the algorithms which compute reputations on the data and the management of the identifiers that are linked to personal data. The reality of today…

Cryptography and Security · Computer Science 2019-06-11 Thomas Hardjono

Centralised biometric identity systems expose users to single points of failure, opaque verification processes, and irreversible biometric compromise. Decentralised Identifiers (DIDs) and Verifiable Credentials (VCs) offer stronger privacy…

Cryptography and Security · Computer Science 2026-05-29 Ankit Kanaiyalal Prajapati , Shahzad Memon , Mohammed Mahir Rahman , Ameer Al-Nemrat

The emerging Self-Sovereign Identity (SSI) techniques, such as Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs), move control of digital identity from conventional identity providers to individuals and lay down the…

Emerging Technologies · Computer Science 2024-05-07 Thusitha Dayaratne , Xinxin Fan , Yuhong Liu , Carsten Rudolph

Vulnerable individuals have a limited ability to make reasonable financial decisions and choices and, thus, the level of care that is appropriate to be provided to them by financial institutions may be different from that required for other…

Computers and Society · Computer Science 2021-06-14 Tasos Spiliotopoulos , Dave Horsfall , Magdalene Ng , Kovila Coopamootoo , Aad van Moorsel , Karen Elliott

The Self-Sovereign Identity (SSI) is a decentralized paradigm enabling full control over the data used to build and prove the identity. In Internet of Things networks with security requirements, the Self-Sovereign Identity can play a key…

Cryptography and Security · Computer Science 2024-01-09 Alessandro Pino , Davide Margaria , Andrea Vesco

Digital transformation with the adoption of cloud technologies, outsourcing, and working-from-home possibilities permits flexibility for organizations and persons. At the same time, it makes it more difficult to secure the IT infrastructure…

Cryptography and Security · Computer Science 2024-07-25 Daniela Pöhn , Wolfgang Hommel

Web3's decentralised infrastructure has upended the standardised approach to digital identity established by protocols like OpenID Connect. Web2 and Web3 currently operate in silos, with Web2 leveraging selective disclosure JSON web tokens…

Cryptography and Security · Computer Science 2025-01-24 Ben Biedermann , Matthew Scerri , Victoria Kozlova , Joshua Ellul

The security of TLS depends on trust in certificate authorities, and that trust stems from their ability to protect and control the use of a private signing key. The signing key is the key asset of a certificate authority (CA), and its…

Cryptography and Security · Computer Science 2017-10-11 Bargav Jayaraman , Hannah Li , David Evans

Digital identity is evolving from centralized systems to a decentralized approach known as Self-Sovereign Identity (SSI). SSI empowers individuals to control their digital identities, eliminating reliance on third-party data custodians and…

Cryptography and Security · Computer Science 2024-06-28 Evan Krul , Hye-young Paik , Sushmita Ruj , Salil S. Kanhere

The sharing of public key information is central to the digital credential security model, but the existing Web PKI with its opaque Certification Authorities and synthetic attestations serves a very different purpose. We propose a new…

Cryptography and Security · Computer Science 2024-01-08 Tim Hobson , Lydia France , Sam Greenbury , Luke Hare , Pamela Wochner

Credential brokers offer a way to separate identity from access in CI/CD systems. This paper shows how verifiable identities issued at runtime, such as those from SPIFFE, can be used with brokers to enable short-lived, policy-driven…

Cryptography and Security · Computer Science 2025-04-22 Surya Teja Avirneni

Cyber Threat Intelligence (CTI) sharing is an important activity to reduce information asymmetries between attackers and defenders. However, this activity presents challenges due to the tension between data sharing and confidentiality, that…

Decentralized identity frameworks grant users full sovereignty over their digital assets in the Web3 ecosystem. However, allowing arbitrary creation of identifiers makes the system susceptible to Sybil attacks and puts assets at risk when…

Cryptography and Security · Computer Science 2026-01-21 Rui Song

The growth in IoT devices means an ongoing risk of data vulnerability. The transition from centralized ecosystems to decentralized ecosystems is of paramount importance due to security, privacy, and data use concerns. Since the majority of…

Cryptography and Security · Computer Science 2025-11-04 Sushil Khairnar

Next generation mobile networks are poised to transition from monolithic structures owned and operated by single mobile network operators into multi-stakeholder networks where various parties contribute with infrastructure, resources, and…

Networking and Internet Architecture · Computer Science 2025-03-04 Sandro Rodriguez Garzon , Hai Dinh Tuan , Maria Mora Martinez , Axel Küpper , Hans Joachim Einsiedler , Daniela Schneider

Digital identity is shifting from service- and network-centric approaches toward user-centric ones that promise users increased control over their data. Despite their decentralised design, such approaches often reintroduce centralised…

Cryptography and Security · Computer Science 2026-03-18 Ioannis Konstantinidis , Ioannis Mavridis , Evangelos K. Markakis

Identity and trust in the modern Internet are centralized around an oligopoly of identity service providers consisting solely of major tech companies. The problem with centralizing trust has become evident in recent discoveries of mass…

Cryptography and Security · Computer Science 2018-09-11 Martin Schanzenbach , Christian Banse , Julian Schütte