Results 31 to 40 of about 2,103 (211)

Quantum Secured-Byzantine Fault Tolerance Blockchain Consensus Mechanism [PDF]

open access: yesJisuanji kexue, 2022
Aiming at the problem that the classical blockchain consensus mechanism is under the threat of quantum computing attacks,a quantum-secured Byzantine fault tolerant consensus mechanism is proposed.Firstly,to solve the security threat of public key digital
REN Chang, ZHAO Hong, JIANG Hua
doaj   +1 more source

On the Practicality of Practical Byzantine Fault Tolerance [PDF]

open access: yes, 2012
Byzantine Fault Tolerant (BFT) systems are considered by the systems research community to be state of the art with regards to providing reliability in distributed systems. BFT systems provide safety and liveness guarantees with reasonable assumptions, amongst a set of nodes where at most f nodes display arbitrarily incorrect behaviors, known as ...
Nikos Chondros   +2 more
openaire   +4 more sources

An improved PBFT consensus algorithm based on grouping and credit grading

open access: yesScientific Reports, 2023
To improve the blockchain consensus algorithm practical Byzantine fault tolerance (PBFT) with random master node selection, which has high communication overhead and a small supported network size, this paper proposes a Byzantine fault tolerant consensus
Shannan Liu   +4 more
doaj   +1 more source

Improved Fault-Tolerant Consensus Based on the PBFT Algorithm

open access: yesIEEE Access, 2022
Nowadays Practical Byzantine Fault Tolerance (PBFT) algorithm has become the most extensive consensus algorithm in the alliance chain. However, the PBFT algorithm is usually only applicable to small networks due to high communication complexity and poor ...
Jian Yang   +4 more
doaj   +1 more source

Blockchain-Based Double-Layer Byzantine Fault Tolerance for Scalability Enhancement for Building Information Modeling Information Exchange

open access: yesBig Data and Cognitive Computing, 2023
A Practical Byzantine Fault Tolerance (PBFT) is a consensus algorithm deployed in a consortium blockchain that connects a group of related participants.
Widya Nita Suliyanti, Riri Fitri Sari
doaj   +1 more source

Entangled state testing in the quantum Byzantine agreement

open access: yes网络与信息安全学报, 2016
In distributed computing,Byzantine agreement is a practical method to solve its fault-tolerance problem.There is a variation of the Byzantine agreement which is called detectable Byzantine agreement.This kind of protocol is unsolvable by classical means ...
Xia WU,Heng-yue JIA,Jian-ming ZHU
doaj   +3 more sources

Efficient Quantum-secure Byzantine Fault Tolerance Consensus Mechanism Based on HotStuff [PDF]

open access: yesJisuanji kexue
The public-key digital signature used by Byzantine fault tolerance consensus mechanism in the classic blockchain exposes vulnerability to quantum computers that have the exponential acceleration of computing power,and therefore have security risks.To ...
CHENG Andong, XIE Sijiang, LIU Ang, FENG Yimeng
doaj   +1 more source

A Blockchain-Enabled Distributed Advanced Metering Infrastructure Secure Communication (BC-AMI)

open access: yesApplied Sciences, 2022
The world is facing an urgent need to provide secure communication and data access control in advanced metering infrastructure (AMI) because conventional cryptographic key management and authentication protocols are at stake.
Nahida Islam   +4 more
doaj   +1 more source

Graph Learning BFT: A Design of Consensus System for Distributed Ledgers

open access: yesIEEE Access, 2020
Distributed ledger technology faces scalability problems due to a long commit time despite recent successes for cryptocurrency. Small group consensus studies have improved this scalability of distributed ledgers.
Myoungwon Oh   +5 more
doaj   +1 more source

Research on Byzantine Fault Tolerance Under Volunteer Cloud Environment [PDF]

open access: yesJisuanji gongcheng, 2016
Since the nodes of the volunteer cloud have the characteristics of high dynamic and low reliability,the volunteer cloud is prone to Byzantine fault.Byzantine consensus algorithm can make the system keep consistent when f malicious nodes are present ...
LEI Changjian,LIN Yaping,LI Jinguo,ZHAO Jianghua
doaj   +1 more source

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