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Self-Sovereign Identity (SSI) is projected to become part of every person's life in some form. The ability to verify and authenticate that an individual is the actual person they are purported to be along with securing the personal…

Cryptography and Security · Computer Science 2022-09-26 Morgan Reece , Sudip Mittal

Public blockchains lack native mechanisms to attribute on-chain actions to legally accountable entities, creating a fundamental barrier to institutional adoption and regulatory compliance. This paper presents an architecture that extends…

Cryptography and Security · Computer Science 2026-01-21 Awid Vaziry , Christoph Wronka , Sandro Rodriguez Garzon , Axel Küpper

Electronic Identification (eID) is becoming commonplace in several European countries. eID is typically used to authenticate to government e-services, but is also used for other services, such as public transit, e-banking, and physical…

Cryptography and Security · Computer Science 2014-09-10 Thomas Nyman , Jan-Erik Ekberg , N. Asokan

Self-Sovereign Identity (SSI) is a new distributed method for identity management, commonly used to address the problem that users are lack of control over their identities. However, the excessive pursuit of self-sovereignty in the most…

Cryptography and Security · Computer Science 2022-06-13 Qiuyun Lyu , Shaopeng Cheng , Hao Li , Junliang Liu , Yanzhao Shen , Zhen Wang

Identity Management Systems (IdMs) have complemented how users are identified, authenticated, and authorised on e-services. Among the methods used for this purpose are traditional IdMs (isolated, centralised and federated) that mostly rely…

Cryptography and Security · Computer Science 2024-09-06 Abubakar-Sadiq Shehu

Self-Sovereign Identity (SSI) is a paradigm for digital identity management that offers unique privacy advantages. A key technology in SSI is Decentralized Identifiers (DIDs) and their associated metadata, DID Documents (DDOs). DDOs contain…

Networking and Internet Architecture · Computer Science 2025-07-09 Carlo Segat , Sandro Rodriguez Garzo , Axel Küpper

Self-Sovereign Identity (SSI) is a novel and emerging, decentralized digital identity approach that enables entities to control and manage their digital identifiers and associated identity data fully while enhancing trust, privacy,…

Cryptography and Security · Computer Science 2022-08-23 Špela Čučko , Šeila Bećirović , Aida Kamišalić , Saša Mrdović , Muhamed Turkanović

Existing digital identity management systems fail to deliver the desirable properties of control by the users of their own identity data, credibility of disclosed identity data, and network-level anonymity. The recently proposed…

Cryptography and Security · Computer Science 2021-09-29 Quinten Stokkink , Georgy Ishmaev , Dick Epema , Johan Pouwelse

Self-Sovereign Digital Identity (SSDI) enables individuals to control their own identity assertions and data, rather than relying on centralized or federated systems prone to large-scale data breaches. By eliminating centralized databases…

Cryptography and Security · Computer Science 2026-03-13 Sushanth Ambati , Kainat Adeel , Jack Myers , Nikolay Ivanov

Self-Sovereign Identity (SSI) grants holders full ownership and control of their digital identities, being the ultimate digital identity model. Operating in a decentralized manner, SSI enables the verification of claims, including…

Cryptography and Security · Computer Science 2026-01-15 Andreea Elena Drăgnoiu , Andrei Ciobanu , Ruxandra F. Olimid

Self-Sovereign Identity (SSI) is an identity model centered on the user. The user maintains and controls their data in this model. When a service provider requests data from the user, the user sends it directly to the service provider,…

Cryptography and Security · Computer Science 2022-06-22 Frederico Schardong , Ricardo Custódio

Self Sovereign Identity (SSI) is an emerging identity system that facilitates secure credential issuance and verification without placing trust in any centralised authority. To bypass central trust, most SSI implementations place blockchain…

Cryptography and Security · Computer Science 2023-08-04 Rahma Mukta , Rue C. Teh , Hye-young Paik , Qinghua Lu , Salil S. Kanhere

The Self-Sovereign Identity (SSI) paradigm is instrumental for decentralised identity management, allowing an entity to create, manage, and present their digital credentials without relying on centralised authorities. Credential selective…

Cryptography and Security · Computer Science 2026-04-14 Elia Onofri , Andrea De Salve , Paolo Mori , Laura Emilia Maria Ricci , Roberto Di Pietro

Self-Sovereign Identity (SSI) is a novel identity model that empowers individuals with full control over their data, enabling them to choose what information to disclose, with whom, and when. This paradigm is rapidly gaining traction…

Cryptography and Security · Computer Science 2026-03-25 Alessandro Buldini , Carlo Mazzocca , Rebecca Montanari , Selcuk Uluagac

The digitization of democratic processes promises greater accessibility but presents challenges in terms of security, privacy, and verifiability. Existing electronic voting systems often rely on centralized architectures, creating single…

Cryptography and Security · Computer Science 2025-07-15 Michał Jóźwik , Johan Pouwelse

European Digital Identity (EUDI) Wallet aims to provide end users with a way to get attested credentials from issuers, and present them to different relying parties. An important property mentioned in the regulatory frameworks is the…

Cryptography and Security · Computer Science 2026-03-25 Jelizaveta Vakarjuk , Alisa Pankova

This article presents the potential use of the Self-Sovereign Identities (SSI), combining with Distributed Ledger Technologies (DLT), to improve the privacy and control of health data. The paper presents the SSI technology, lists the…

Computers and Society · Computer Science 2021-07-30 Alexandre Siqueira , Arlindo Flavio da Conceição , Vladimir Rocha

The centralized PKI is not a suitable solution to provide identities in large-scale IoT systems. The main problem is the high cost of managing X.509 certificates throughout their lifecycle, from installation to regular updates and…

Cryptography and Security · Computer Science 2024-02-14 Leonardo Perugini , Andrea Vesco

This paper provides an overview of the Self-Sovereign Identity (SSI) concept, focusing on four different components that we identified as essential to the architecture. Self-Sovereign Identity is enabled by the new development of blockchain…

Cryptography and Security · Computer Science 2018-07-18 Alexander Mühle , Andreas Grüner , Tatiana Gayvoronskaya , Christoph Meinel

This paper describes pseudonyms for the upcoming European Identity Wallet (EUDIW) architecture from both a cryptographic and an implementation perspective. Its main goal is to provide technical insights into the achievable properties and…

Cryptography and Security · Computer Science 2025-10-08 René Mayrhofer , Anja Lehmann , abhi shelat