國立虎尾科技大學 |

On Scalability of Blockchain Technologies.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	On Scalability of Blockchain Technologies./
Author:	Gencer, Adem Efe.
Description:	1 online resource (140 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Subject:	Computer science. -
Online resource:	click for full text (PQDT)
ISBN:	9780355281668

On Scalability of Blockchain Technologies.
Gencer, Adem Efe.

On Scalability of Blockchain Technologies. - 1 online resource (140 pages)

Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.

Thesis (Ph.D.)--Cornell University, 2017.

Includes bibliographical references

In this dissertation, we explore how to improve scalability of blockchains while maintaining their fundamental premise of decentralization. Scalable blockchains are capable of delivering a target throughput and latency in the presence of increasing workload. To this end, first we present Bitcoin-NG, a new blockchain protocol designed to provide scale for services involving frequent, high-volume interactions. This Byzantine fault tolerant blockchain protocol is robust to extreme churn and shares the same trust model as Bitcoin. We experimentally demonstrate that Bitcoin-NG scales optimally, with bandwidth limited only by the capacity of the individual nodes and latency limited only by the propagation time of the network. Then, we examine the scalability challenges arising from proliferation of blockchain services. In particular, we observe that due to inherently single-service oriented blockchain protocols, services can bloat the existing blockchains, fail to provide sufficient security, or completely forego the property of trustless auditability. We introduce Aspen, a sharded blockchain protocol that securely scales with increasing number of services. Aspen enables service integration without compromising security---leveraging the trust assumptions---or flooding users with irrelevant messages. Finally, we provide the means to assess the viability of different scaling solutions. We develop and utilize custom metrics for evaluating performance and security of blockchain protocols. Moreover, we design tools and techniques for measuring decentralization in operational blockchain systems, demonstrating their use in a comparative study of decentralization in Bitcoin and Ethereum.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355281668Subjects--Topical Terms:

573171
Computer science.
Index Terms--Genre/Form:

554714
Electronic books.

On Scalability of Blockchain Technologies.
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100 1 $a Gencer, Adem Efe. $3 1185461
245 1 0 $a On Scalability of Blockchain Technologies.
264 0 $c 2017
300 $a 1 online resource (140 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
500 $a Advisers: Emin Gun Sirer; Robbert van Renesse.
502 $a Thesis (Ph.D.)--Cornell University, 2017.
504 $a Includes bibliographical references
520 $a In this dissertation, we explore how to improve scalability of blockchains while maintaining their fundamental premise of decentralization. Scalable blockchains are capable of delivering a target throughput and latency in the presence of increasing workload. To this end, first we present Bitcoin-NG, a new blockchain protocol designed to provide scale for services involving frequent, high-volume interactions. This Byzantine fault tolerant blockchain protocol is robust to extreme churn and shares the same trust model as Bitcoin. We experimentally demonstrate that Bitcoin-NG scales optimally, with bandwidth limited only by the capacity of the individual nodes and latency limited only by the propagation time of the network. Then, we examine the scalability challenges arising from proliferation of blockchain services. In particular, we observe that due to inherently single-service oriented blockchain protocols, services can bloat the existing blockchains, fail to provide sufficient security, or completely forego the property of trustless auditability. We introduce Aspen, a sharded blockchain protocol that securely scales with increasing number of services. Aspen enables service integration without compromising security---leveraging the trust assumptions---or flooding users with irrelevant messages. Finally, we provide the means to assess the viability of different scaling solutions. We develop and utilize custom metrics for evaluating performance and security of blockchain protocols. Moreover, we design tools and techniques for measuring decentralization in operational blockchain systems, demonstrating their use in a comparative study of decentralization in Bitcoin and Ethereum.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Computer science. $3 573171
655 7 $a Electronic books. $2 local $3 554714
690 $a 0984
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Cornell University. $b Computer Science. $3 1179602
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10617385 $z click for full text (PQDT)