Smart Contract Assisted Blockchain based PKI System
Amrutanshu Panigrahi, Ajit Kumar Nayak, Rourab Paul

TL;DR
This paper presents a blockchain-based PKI system utilizing smart contracts and DPoS consensus to prevent multiple cyber attacks, offering improved timing efficiency for validation and revocation processes.
Contribution
It introduces a smart contract-enabled PKI system that enhances security against cyber attacks and optimizes validation timing, suitable for lightweight applications.
Findings
Prevents seven major cyber attacks.
Reduces validation timing complexity.
Outperforms existing solutions in timing parameters.
Abstract
The proposed smart contract can prevent seven cyber attacks, such as Denial of Service (DoS), Man in the Middle Attack (MITM), Distributed Denial of Service (DDoS), 51\%, Injection attacks, Routing Attack, and Eclipse attack. The Delegated Proof of Stake (DPoS) consensus algorithm used in this model reduces the number of validators for each transaction which makes it suitable for lightweight applications. The timing complexity of key/certificate validation and signature/certificate revocation processes do not depend on the number of transactions. The comparisons of various timing parameters with existing solutions show that the proposed PKI is competitively better.
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Taxonomy
TopicsBlockchain Technology Applications and Security · FinTech, Crowdfunding, Digital Finance
