Aug 2026· International Journal of Intelligent Systems and Data Science· 0 citations· 29 references
TL;DR
This research presents a novel decentralized identity management system leveraging Ethereum smart contracts and cryptographic protocols to enable self-sovereign digital identities and introduces a privacy-preserving mechanism using encryption-key splitting among trusted peers to enable recovery of encrypted off-chain data.
Abstract
This research presents a novel decentralized identity management system leveraging Ethereum smart contracts and cryptographic protocols to enable self-sovereign digital identities. Traditional centralized identity solutions pose risks related to data privacy, security, and user autonomy. To address these limitations, we propose a blockchain-based architecture integrating smart contracts for identity governance, IPFS for decentralized attribute storage, and threshold cryptography for private data recovery. Our dual-contract model (Identity Contract and Recovery Contract) facilitates secure identity creation, verifiable attribute attestation, and robust key recovery through social consensus. We introduce a privacy-preserving mechanism using encryption-key splitting among trusted peers to enable recovery of encrypted off-chain data. Implementation uses Web3.js, Solidity, and QR-code-based communication, abstracting cryptographic complexities from end-users. Security analysis addresses replay, man-in-the-middle, Sybil, and multi-user compromise attacks with mitigations including challenge-response authentication and time-delayed contract execution. This work contributes a cryptographically secure, user-centric identity framework ensuring data sovereignty, recoverability, and interoperability within the Ethereum ecosystem.
PEACE is presented, an authentication mechanism for blockchains that combines the practicality of traditional Web systems with decentralization and privacy-preservation, building on a recent groundbreaking zkLogin protocol.
Stefan Dziembowski, Shahriar Ebrahimi, Paweł K. ̨edzior et al.· International Conference on...· 0 citations
This research introduces a novel Unified Quantum-Resilient Blockchain-Zero Knowledge Proofs Privacy Authentication Framework (QBC-ZKPAF), which provides strong security and privacy solutions for Internet of Things networks by adopting multi-factor authentication and decentralizing identity management.
Uzma Shereen, Lubna Nausheen· American Journal of AI Cyber...· 0 citations
Given that digital governance has achieved extensive spread and people rely increasingly on online services, affordable and trustworthy identity management is now one of the core pillars of contemporary e-Governance systems. Conventional identity systems are usually centralized, highly susceptible to cyber-attacks and most likely to breach privacy. Blockchain technology provides a decentralized, tamper-proof, and transparent system, which guarantees data integrity, data security, and the privacy of the user. In this paper, the authors research the adoption of blockchain-based identity management within e-Governance sites. We discuss available solutions, assess the risks along with their weaknesses and strengths, and suggest a design on how to introduce a safe blockchain-based identity system. Important efforts have been on developing a holistic system that brings smart contract, cryptographic protocols and distributed ledger technologies together to make citizen identification and authentication secure. The outcome of the results shows enhanced security, less identity fraud, and better data security, so there is a possibility of scalability and resilient e-Governance applications.
J. Nováková, Adi Lestari· International Journal of Mod...· 0 citations
This paper proposes EPPCDS, an efficient privacy-preserving cloud data sharing scheme with blockchain-assisted access control and periodic integrity checking, and demonstrates that it outperforms representative existing schemes in terms of policy creation, policy update, and data access efficiency.
Experimental evaluation shows that the ARSIP-enabled framework achieves a 30% reduction in latency, a 43% improvement in attack detection accuracy, and a 35% reduction in energy consumption compared with baseline blockchain-based healthcare systems.
Kumar Velmurugan, P. Venkata, Sateesh Kumar et al.· Discover Computing· 0 citations
The Internet of Vehicles (IoV) is evolving into a distributed electronic sensing and communication infrastructure in which vehicles, roadside units, and service platforms continuously exchange data for intelligent transportation services. However, cross-organization sharing of vehicle-borne sensing data can expose identity links, location traces, task routes, and raw sensor content. This paper proposes BAPPS, a Blockchain-Assisted Privacy-Preserving Sharing Scheme for Secure Data Exchange in the Internet of Vehicles. BAPPS combines anonymous identity issuance, zk-SNARK-based data-quality verification, elliptic-curve proxy re-encryption, and on-chain audit records. Data owners can prove that encrypted observations satisfy task-specific quality or access constraints without disclosing raw data, while a semi-honest service provider transforms ciphertexts only under authorization. The consortium blockchain records task publication, access verification, proof submission, and data-hash evidence, enabling traceable sharing without exposing plaintext observations. We further implement a Tendermint-style BFT consensus layer, denoted BAPPS-T, to reduce confirmation latency in the data-sharing workflow. Using the three available real Tendermint benchmark workbooks as repeated records, BAPPS-T achieved a mean consensus latency of 776.3 ms at 100 nodes (SD = 80.8 ms, n = 3, 95% CI = 575.5–977.1 ms), corresponding to a 90.17% latency reduction relative to Baseline 1. The results indicate that BAPPS can provide a reproducible protocol layer for trusted, privacy-aware sharing of mobile electronics observations under explicit deployment assumptions.
Lin Wang, Ke Chen, Fangxiao Li et al.· Electronics· 0 citations
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