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Decentralization in Blockchain and its Impact on Identity
Published in Latesh Malik, Sandhya Arora, Urmila Shrawankar, Vivek Deshpande, Blockchain for Smart Systems, 2022
Shailaja Nitin Lohar, Sachin Babar
The chronology of identity management systems ranges from centralized, user centric, federated and towards a self-sovereign identity. The virtual identities are authorized, stored using either centralized systems or federated systems like Google giving its users email verification for multiple applications. But the risk in these systems is the central point of failures and the dominance of federated systems. The solution is a self-sovereign identity (SSI) [17], the concept in which users have complete control over their own identities. SSI is implemented using blockchain for user authentication and verification. Iroha, Hyperledger, Civic [1], uPort [1] and Cryptid are some of the examples of SSI implementations. Some applications like, Trinsic (which use the hyperledger Blockchain), allow users to create their own digital wallets which can be used for verification and authorization of claims anytime [19] with any organization.
IoT Security using Blockchain
Published in Kuan-Ching Li, Xiaofeng Chen, Hai Jiang, Elisa Bertino, Essentials of Blockchain Technology, 2019
Hanif Ullah, Mamun Abu-Tair, Aftab Ali, Kashif Rabbani, Joshua Daniel, Joe Rafferty, Zhiwei Lin, Philip Morrow, Gery Ducatel
Verifiable claims enable SC parties and other entities to have control over the data associated with identities in terms of sharing and providing access to other bodies specifying what data they can access and under what circumstances. In order to strengthen the concept of smart contracts and verifiable claims, the idea of Self Sovereign Identity (SSI) was introduced. SSI in general means that the individual has ownership over his/her personal data and control over how, when, and to whom their personal data should be revealed [12]. SSI is basically a digital equivalent to our paper-based identities such as driving license, passport, birth certificate etc. that are digitally stored in a wallet created by the owner with a unique self-generated identification number based on a public and private key combination. The owner then uses this identification number along with identity claims to verify and attest his/her claims from the concerned authorities. These attested claims can be presented as a proof of identity information or document. For example, if the identity owner wants to hire a car, the car renting authority will ask for a proof of identity document (e.g. driving license). The owner will present an attested claim verified by the licensing authority instead of revealing the actual driving license information. In this manner, SSI will address the issues of massive data breach, will increase the efficiency of different companies to get the identity assurances in their identity verification process, and will allow the individuals to decide how their personal data can be shared and monetised without the involvement of any third-party identity providers such as Google and Facebook [13].
Blockchain Architecture, Components and Considerations
Published in Shaun Aghili, The Auditor's Guide to Blockchain Technology, 2023
Aafreen Fathima Altaf Hussain, Temitope Ipentan, Mahakpreet Singh, Grace Moyo Adeyemi
The self-sovereign identity (SSI) model is a new approach to identity model development in self-sovereign identity. SSI improves security and trust by allowing users to exercise absolute control over their identities [36].
On-chain global maintenance services: technical, legal and managerial implications
Published in International Journal of Parallel, Emergent and Distributed Systems, 2023
Andrea Vitaletti, Maurizio Pizzonia, Marco Zecchini, Diego Pennino, Salvatore Esposito De Falco, Francesco Pacileo, Alessandro Bellini, Antonio Bonifacio, Domenico Sardanelli, Pietro Vito, Simone Naldini
The GSM requires the identification of the parts, both for the purpose of mapping the responsibilities (accountability) and for verifying the suitable professional skills of the Facility Manager and of the sub-suppliers/contractors. Nowadays, digital identity is usually guaranteed by trusted identity providers such as Facebook (Facebook Connect) and Google (Google Sign-In) which have control of the information associated with users identities. Self-sovereign identity (SSI) [32] is a new approach to digital identity that gives individuals control over the information they use to prove their identity instead of relying on trusted identity providers. In an SSI system, users generate and control unique identifiers called decentralized identifiers (DiD). Most SSI systems are decentralized and the credentials are managed using crypto wallets and verified using public-key cryptography anchored on a distributed ledger [33].