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政大機構典藏 > 商學院 > 資訊管理學系 > 會議論文 > Item 140.119/129346

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/129346

Title:	Runtime Hook on Blockchain and Smart Contract Systems
Authors:	林韋廷郁方蕭舜文
Contributors:	資管碩二
Date:	2019-07
Issue Date:	2020-04-22 10:48:39 (UTC+8)
Abstract:	Using hard-fork on the blockchain to recover the losses caused by attacks contradicts the immutable characteristic of a blockchain system. To prevent malicious transactions from getting into blockchains in advance, we propose a runtime hook technique to synchronize ongoing transactions exposed to the Ethereum transaction pool. Having a complete view of ongoing transactions, we are able to identify and enforce abortion of malicious transactions and prevent losses due to attacks being executed and recorded in the blockchain. Specifically, we modify the Ethereum source code to instrument the entry point of a node to synchronize information, import information into our local database, and systematically scan suspicious patterns in transactions to identify potential attacks. As a proof-of-theconcept, we show how to deploy the proposed runtime hook system on a private blockchain system, such that we can detect and prevent transactions of double spending on the 51% attack.
Relation:	TCSE 2019, TCSE, JASPIC, SEA
Data Type:	conference
Appears in Collections:	[資訊管理學系] 會議論文

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