政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/112079

English | 正體中文 | 简体中文 | Post-Print筆數 : 27 | Items with full text/Total items : 109948/140897 (78%)
Visitors : 46091011 Online Users : 1418

RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer

政大機構典藏 > 商學院 > 風險管理與保險學系 > 會議論文 > Item 140.119/112079

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/112079

Title:	A probability model for analysis of attacks on blockchain
Authors:	謝明華季延平 Hsieh, Ming Hua Chung, Ming Tao Chi, Yan Ping Jeffery
Contributors:	風管系
Keywords:	Chains;Distributed computer systems;Electronic commerce;Markov processes;Peer to peer networks;Random processes;Stochastic systems;Block-chain;Computing power;Probability modeling;Proof of work;Transaction data;Two-state;Probability
Date:	2016-12
Issue Date:	2017-08-22 16:34:45 (UTC+8)
Abstract:	In a blockchain, the longest chain, which has the greatest proof-of-work effort spent in it, represents the majority decision. To change the transaction data of a block, an attacker has to control more computing power than other honest nodes. This situation can happen if the attacker can hack into the systems of honest nodes. To analyze the probability of such event, we propose a probability model for analysis of attacks on blockchain. The model is based on the structure of a peer-to-peer network. We assume the state of each honest node follows a two-state (hacked or normal) Markov chains. A hacked node is assumed to be controlled by the attacker and its computing power belongs to the attacker. On the other hand, the computing power of a normal node belongs to the honest longest chain. We apply the model to study the probability of the majority decision is controlled by the attacker and the duration of such event. In addition, we analyze the magnitude of the loss for such event.
Relation:	Proceedings of the International Conference on Electronic Business (ICEB), 352-355
Data Type:	conference
Appears in Collections:	[風險管理與保險學系] 會議論文

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML2	559	View/Open

社群 sharing

著作權政策宣告 Copyright Announcement

1.本網站之數位內容為國立政治大學所收錄之機構典藏，無償提供學術研究與公眾教育等公益性使用，惟仍請適度，合理使用本網站之內容，以尊重著作權人之權益。商業上之利用，則請先取得著作權人之授權。
The digital content of this website is part of National Chengchi University Institutional Repository. It provides free access to academic research and public education for non-commercial use. Please utilize it in a proper and reasonable manner and respect the rights of copyright owners. For commercial use, please obtain authorization from the copyright owner in advance.

2.本網站之製作，已盡力防止侵害著作權人之權益，如仍發現本網站之數位內容有侵害著作權人權益情事者，請權利人通知本網站維護人員(nccur@nccu.edu.tw)，維護人員將立即採取移除該數位著作等補救措施。
NCCU Institutional Repository is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff(nccur@nccu.edu.tw). We will remove the work from the repository and investigate your claim.

Loading...