Scalable Log Auditing on Private Blockchains via Lightweight Log-Fork Prevention

Yuzhe Tang, Kai Li, Yibo Wang, Sencer Burak Somuncuoglu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work presents TxChecker, a secure logging system over a private blockchain with two salient features: 1) TxChecker prevents log forking attacks without trusting any external party other than the blockchain, 2) TxChecker achieves a low cost on log auditors that is proportional to the data being audited. TxChecker employs a novel scheme to map the misbehavior of forking logs to the double-spending transactions, which are invalidated by the underlying blockchain. In the TxChecker protocol, clients and the server in the domain infrastructure both attest to a history of concurrent operations and send blockchain transactions. A prototype of TxChecker is implemented in HyperLedger Fabric. Evaluation shows that TxChecker reduces the costs of log auditors significantly compared to replication-based log schemes.

Original languageEnglish (US)
Title of host publicationSERIAL 2020 - Proceedings of the 2020 4th Workshop on Scalable and Resilient Infrastructures for Distributed Ledgers, Part of Middleware 2020
PublisherAssociation for Computing Machinery, Inc
Pages1-4
Number of pages4
ISBN (Electronic)9781450382083
DOIs
StatePublished - Dec 7 2020
Event4th Workshop on Scalable and Resilient Infrastructures for Distributed Ledgers, SERIAL 2020 - Part of Middleware 2020 - Virtual, Online, Netherlands
Duration: Dec 7 2020Dec 11 2020

Publication series

NameSERIAL 2020 - Proceedings of the 2020 4th Workshop on Scalable and Resilient Infrastructures for Distributed Ledgers, Part of Middleware 2020

Conference

Conference4th Workshop on Scalable and Resilient Infrastructures for Distributed Ledgers, SERIAL 2020 - Part of Middleware 2020
Country/TerritoryNetherlands
CityVirtual, Online
Period12/7/2012/11/20

Keywords

  • Blockchains
  • auditable logs
  • light clients

ASJC Scopus subject areas

  • Information Systems
  • Software

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