Efficient Byzantine Consensus Mechanism Based on Reputation in IoT Blockchain

Xu, Yuan; Luo, Fang; Haider, Muhammad Zeeshan; Chen, Zhikui; Li, Yucheng

doi:10.1155/2021/9952218

Cited by 26 publications

(11 citation statements)

References 27 publications

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“…A selected candidate node must not have remained as a candidate node in the previous term (Line 2). Once the candidate nodes are selected for the leader selection process, the leader is chosen based on a Verifiable Random Function (VRF) 22 amongst the candidate nodes. Each candidate has a pair of public and a private key.…”

Section: Leader Rsu Selectionmentioning

confidence: 99%

Blockchain enabled data security in vehicular networks

Sehar

Khalid

Khan

et al. 2023

Sci Rep

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Recently, researchers have applied blockchain technology in vehicular networks to take benefit of its security features, such as confidentiality, authenticity, immutability, integrity, and non-repudiation. The resource-intensive nature of the blockchain consensus algorithm makes it a challenge to integrate it with vehicular networks due to the time-sensitive message dissemination requirements. Moreover, most of the researchers have used the Proof-of-Work consensus algorithm, or its variant to add a block to a blockchain, which is a highly resource-intensive process with greater latency. In this paper, we propose a consensus algorithm for vehicular networks named as Vehicular network Based Consensus Algorithm (VBCA) to ensure data security across the network using blockchain that maintains a secured pool of confirmed messages exchanged in the network. The proposed scheme, based on a consortium blockchain, reduces average transaction latency, and increases the number of confirmed transactions in a decentralized manner, without compromising the integrity and security of data. The simulation results show improved performance in terms of confirmed transactions, transaction latency, number of blocks, and block creation time.

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Section: Leader Rsu Selectionmentioning

confidence: 99%

Blockchain enabled data security in vehicular networks

Sehar

Khalid

Khan

et al. 2023

Sci Rep

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“…In recent years, many scholars have done a lot of research on the PBFT algorithm. Xu Yuan et al proposed an improved PBFT algorithm based on reputation, which effectively improves the system's security, but the scalability of the system is still limited [29]. Wenyu Li et al introduced an optimal double-layer PBFT and proved that the communication complexity of the algorithm is signifi cantly reduced [30].…”

Section: Pbftmentioning

confidence: 99%

Safe and Efficient Delegated Proof of Stake Consensus Mechanism Based on Dynamic Credit in Electronic Transaction

Zhao¹,

Zhao²,

Dai³

2023

Journal of Internet Technology

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<p>The sector of electronic transactions based on blockchain technology is expanding quickly thanks to the reliability of the consensus mechanism, which offers a new technical path for developing the financial industry. The consensus algorithms cannot support the safety and efficiency required for electronic transaction scenarios as they are right now. We propose an enhanced DPoS algorithm based on dynamic credit (DC-DPoS) to address the aforementioned issue. It has a system for node classification, dynamic credit evaluation, and a consistency algorithm that combines voting and random selection. According to theoretical research and simulated experiments, our algorithm improves security while achieving reduced latency and greater throughput. It presents a fresh thought for enhancing the functionality of the blockchain system while also satisfying the fundamental technical criteria of electronic transactions.</p> <p> </p>

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“…Off-chain solutions aim to alleviate the burden 4 CMC, 2023 of the main chain. On-chain solutions such as Bitcoin-Cash [20], compact block rely [21], sharding techniques [22][23][24][25], and various improved consensus algorithms [26][27][28], increase transaction throughput and scalability while decreasing latency. Off-chain solutions like Lightning Networks [29], FireLedger [30], and Sidechains [31] are still under development.…”

Section: Related Workmentioning

confidence: 99%

Advanced DAG-Based Ranking (ADR) Protocol for Blockchain Scalability

Noreen¹,

Xia²,

Haider³

2023

Computers, Materials &Amp; Continua

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In the past decade, blockchain has evolved as a promising solution to develop secure distributed ledgers and has gained massive attention. However, current blockchain systems face the problems of limited throughput, poor scalability, and high latency. Due to the failure of consensus algorithms in managing nodes' identities, blockchain technology is considered inappropriate for many applications, e.g., in IoT environments, because of poor scalability. This paper proposes a blockchain consensus mechanism called the Advanced DAG-based Ranking (ADR) protocol to improve blockchain scalability and throughput. The ADR protocol uses the directed acyclic graph ledger, where nodes are placed according to their ranking positions in the graph. It allows honest nodes to use the Direct Acyclic Graph (DAG) topology to write blocks and verify transactions instead of a chain of blocks. By using a three-step strategy, this protocol ensures that the system is secured against doublespending attacks and allows for higher throughput and scalability. The first step involves the safe entry of nodes into the system by verifying their private and public keys. The next step involves developing an advanced DAG ledger so nodes can start block production and verify transactions. In the third step, a ranking algorithm is developed to separate the nodes created by attackers. After eliminating attacker nodes, the nodes are ranked according to their performance in the system, and true nodes are arranged in blocks in topological order. As a result, the ADR protocol is suitable for applications in the Internet of Things (IoT). We evaluated ADR on EC2 clusters with more than 100 nodes and achieved better transaction throughput and liveness of the network while adding malicious nodes. Based on the simulation results, this research determined that the transaction's performance was significantly improved over blockchains like Internet of Things Applications (IOTA) and ByteBall.

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Efficient Byzantine Consensus Mechanism Based on Reputation in IoT Blockchain

Cited by 26 publications

References 27 publications

Blockchain enabled data security in vehicular networks

Blockchain enabled data security in vehicular networks

Safe and Efficient Delegated Proof of Stake Consensus Mechanism Based on Dynamic Credit in Electronic Transaction

Advanced DAG-Based Ranking (ADR) Protocol for Blockchain Scalability

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