Results 11 to 20 of about 4,383 (183)

BFT Protocol Forensics [PDF]

Proceedings of the 2021 ACM SIGSAC Conference on Computer and Communications Security, 2021
Byzantine fault-tolerant (BFT) protocols allow a group of replicas to come to a consensus even when some of the replicas are Byzantine faulty. There exist multiple BFT protocols to securely tolerate an optimal number of faults $t$ under different network settings. However, if the number of faults $f$ exceeds $t$ then security could be violated. In this
Peiyao Sheng, Gerui Wang, Kartik Nayak, Sreeram Kannan, Pramod Viswanath   +4 more
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A Framework for Evaluating BFT [PDF]

2021 IEEE 27th International Conference on Parallel and Distributed Systems (ICPADS), 2021
We present a framework for evaluating the performance of Byzantine fault-tolerant (BFT) protocols theoretically. Our motivation is to identify protocols suitable for a particular power grid application. In this application, replicas are located in a LAN network where latency is the priority.
James R. Clavin, Yue Huang, Xin Wang 0122, Pradeep M. Prakash, Sisi Duan, Jianwu Wang 0001, Sean Peisert   +6 more
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The Hermes BFT for Blockchains

IEEE Transactions on Dependable and Secure Computing, 2022
The performance of partially synchronous BFT-based consensus protocols is highly dependent on the primary node. All participant nodes in the network are blocked until they receive a proposal from the primary node to begin the consensus process.Therefore, an honest but slack node (with limited bandwidth) can adversely affect the performance when ...
Mohammad M. Jalalzai, Chen Feng 0001, Costas Busch, Golden G. Richard III, Jianyu Niu   +4 more
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[Solution] Mir-BFT: Scalable and Robust BFT for Decentralized Networks

Journal of Systems Research, 2022
This paper presents Mir-BFT, a robust Byzantine fault-tolerant (BFT) total order broadcast protocol aimed at maxi-mizing throughput on wide-area networks (WANs), targetingdeployments in decentralized networks, such as permissionedand Proof-of-Stake permissionless blockchain systems.
Stathakopoulou, Chrysoula, David, Tudor, Pavlovic, Matej, Vukolić, Marko   +3 more
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The potential of rearing juveniles of bluegill, Lepomis macrochirus, in a biofloc system

Aquaculture Reports, 2020
Biofloc technology (BFT) can potentially enhance growth and provide supplemental nutrition to some fish species, but this has not been investigated in bluegill Lepomis macrochirus juveniles. In this study, L.
Hayden Fischer, Nicholas Romano, Nilima Renukdas, Nathan Egnew, Amit Kumar Sinha, Andrew J. Ray   +5 more
doaj   +1 more source

Higher Prevalence of Bacteroides fragilis in Crohn’s Disease Exacerbations and Strain-Dependent Increase of Epithelial Resistance

Frontiers in Microbiology, 2021
Bacteroides fragilis has previously been linked to Crohn’s disease (CD) exacerbations, but results are inconsistent and underlying mechanisms unknown. This study investigates the epidemiology of B. fragilis and its virulence factors bft (enterotoxin) and
Heike E. F. Becker, Heike E. F. Becker, Casper Jamin, Liene Bervoets, Annemarie Boleij, Pan Xu, Marie J. Pierik, Frank R. M. Stassen, Paul H. M. Savelkoul, Paul H. M. Savelkoul, John Penders, John Penders, Daisy M. A. E. Jonkers   +12 more
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Dissecting the Performance of Chained-BFT [PDF]

2021 IEEE 41st International Conference on Distributed Computing Systems (ICDCS), 2021
Permissioned blockchains employ Byzantine fault-tolerant (BFT) state machine replication (SMR) to reach agreement on an ever-growing, linearly ordered log of transactions. A new paradigm, combined with decades of research in BFT SMR and blockchain (namely chained-BFT, or cBFT), has emerged for directly constructing blockchain protocols.
Fangyu Gai, Ali Farahbakhsh, Jianyu Niu, Chen Feng 0001, Ivan Beschastnikh, Hao Duan   +5 more
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FnF-BFT: Exploring Performance Limits of BFT Protocols

CoRR, 2020
We introduce FnF-BFT, a parallel-leader byzantine fault-tolerant state-machine replication protocol for the partially synchronous model with theoretical performance bounds during synchrony. By allowing all replicas to act as leaders and propose requests independently, FnF-BFT parallelizes the execution of requests.
Avarikioti, Zeta, Heimbach, Lioba, Schmid, Roland, Vanbever, Laurent, Wattenhofer, Roger, Wintermeyer, Patrick   +5 more
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Detection of enterotoxigenic Bacteroides fragilis in patients with ulcerative colitis

Gut Pathogens, 2017
Purpose Ulcerative colitis (UC) as a type of inflammatory bowel disease (IBD), presumed to occur as a consequence of increased immune responses to intestinal microbiota in genetically susceptible individuals.
Samin Zamani, Sonia Hesam Shariati, Mohammad Reza Zali, Hamid Asadzadeh Aghdaei, Akram Sarabi Asiabar, Saied Bokaie, Bizhan Nomanpour, Leonardo Antonio Sechi, Mohammad Mehdi Feizabadi   +8 more
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Bacteroides fragilis Enterotoxin Induces Autophagy through an AMPK and FoxO3-Pathway, Leading to the Inhibition of Apoptosis in Intestinal Epithelial Cells

Toxins, 2023
Macroautophagy/autophagy is essential for preserving cellular homeostasis by recycling nutrients and removing spoiled or aged proteins and organelles. It also has an essential role in defense mechanisms against microbial infections.
Su Hyuk Ko, Jun Ho Choi, Jung Mogg Kim
doaj   +1 more source