On Scaling Decentralized Blockchains

Croman, Kyle; Decker, Christian; Eyal, Ittay; Gencer, Adem Efe; Juels, Ari; Kosba, Ahmed E.; Miller, Andrew; Saxena, Prateek; Shi, Elaine; Sirer, Emin Gün; Song, Dawn; Wattenhofer, Roger

doi:10.1007/978-3-662-53357-4_8

Cited by 892 publications

(539 citation statements)

References 16 publications

Supporting

Mentioning

534

Contrasting

Unclassified

Order By: Relevance

“…The success of decentralized cryptocurrencies such as Bitcoin has inspired banks and financial institutions to inspect their transaction processing and settlement infrastructure with a new light. "Confederation cryptocurrency" is an oft-cited vision [24,25,47], where a conglomerate of financial institutions jointly contribute to a Byzantine agreement protocol to allow fast and robust settlement of transactions. Passions are running high that this approach will streamline today's slow and clunky infrastructure for inter-bank settlement.…”

Section: Suggested Deployment Scenariosmentioning

confidence: 99%

See 1 more Smart Citation

The Honey Badger of BFT Protocols

Miller

Xia

Croman

et al. 2016

Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security

Self Cite

597

407

View full text Add to dashboard Cite

The surprising success of cryptocurrencies has led to a surge of interest in deploying large scale, highly robust, Byzantine fault tolerant (BFT) protocols for mission-critical applications, such as financial transactions. Although the conventional wisdom is to build atop a (weakly) synchronous protocol such as PBFT (or a variation thereof), such protocols rely critically on network timing assumptions, and only guarantee liveness when the network behaves as expected. We argue these protocols are ill-suited for this deployment scenario.We present an alternative, HoneyBadgerBFT, the first practical asynchronous BFT protocol, which guarantees liveness without making any timing assumptions. We base our solution on a novel atomic broadcast protocol that achieves optimal asymptotic efficiency. We present an implementation and experimental results to show our system can achieve throughput of tens of thousands of transactions per second, and scales to over a hundred nodes on a wide area network. We even conduct BFT experiments over Tor, without needing to tune any parameters. Unlike the alternatives, HoneyBadgerBFT simply does not care about the underlying network.

show abstract

Section: Suggested Deployment Scenariosmentioning

confidence: 99%

“…Figure 8 shows a comparison with the PBFT protocol, a classic BFT protocol for partially synchronous networks. We use the Python implementation from Croman et al [24], running on 8, 16, 32, and 64 nodes evenly distributed among Amazon AWS regions. Batch sizes were chosen to saturate the network's available bandwidth.…”

Section: Experiments On Amazon Ec2mentioning

confidence: 99%

The Honey Badger of BFT Protocols

Miller

Xia

Croman

et al. 2016

Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security

Self Cite

597

407

View full text Add to dashboard Cite

show abstract

“…Second, the speed and scalability of a completely distributed system would also need to be addressed because concerns have already arisen in smaller blockchain-based applications. 10 Within a blockchain deployment, it is assumed that all blocks are stored on every client node within the system. As an illustration of this potential bottleneck, fully participating as a miner in the bitcoin network requires user to download the entire bitcoin ledger, which totaled ≈101 gigabytes at the end of 2016.…”

Section: Technical Limitations Of Blockchainmentioning

confidence: 99%

“…In addition, the maximum rate of transaction validation within the bitcoin network is ≈7 transactions per second, which could limit the throughput of large blockchain networks. 10 The cost-effectiveness of such a platform that holds significantly larger volumes of data has yet to be proven in production environments. The combined expenditures for hardware, implementation, and support will need to be assessed to determine whether a return on investment for this technology can be realized.…”

Section: Technical Limitations Of Blockchainmentioning

confidence: 99%

Blockchain Technology

Angraal

Krumholz

Schulz

2017

Circ: Cardiovascular Quality and Outcomes

320

View full text Add to dashboard Cite

“…However, it requires considerable resources for taking advantage of the blockchain benefits, which are far away from the common user, as they represent a considerable investment. Moreover, no blockchain solution was tested at a world scale [2]. Thus, this solution, paves the way to decentralized IoT systems, but it is not ready for the current view of the IoT, where the devices are expected to be inexpensive and their real-time communications may be crucial.…”

Section: Related Workmentioning

confidence: 99%

Secure decentralized IoT Infrastructure

2017

View full text Add to dashboard Cite

Abstract-Despite many Internet of Things (IoT) Infrastructures having been implemented in recent years, none of them is truly prepared for a global deployment, where failure tolerance and scalability are an essential requirement. This article presents an alternative concept for IoT Infrastructures, which focuses on enhancing the traditional centralized architecture, usually operated by a single entity, into a decentralized architecture featuring multiple business roles. We propose a dynamic and self-configurable infrastructure on top of a structured Peer-toPeer network. In addition, a set of communication protocols are provided in order to support heterogeneous devices, as well as data access, streaming and persistence. It is also an important focus of our proposal to have mechanisms that guarantee the privacy and security of the information flow and storage.

show abstract

On Scaling Decentralized Blockchains

Cited by 892 publications

References 16 publications

The Honey Badger of BFT Protocols

The Honey Badger of BFT Protocols

Blockchain Technology

Secure decentralized IoT Infrastructure

Contact Info

Product

Resources

About