Communications in Computer and Information Science
Since its introduction in Bitcoin, the blockchain has proven to be a versatile data structure. In its role as an immutable ledger, it has grown beyond its initial use in financial transactions to be used in recording a wide variety of other useful information. In this paper, we explore the application of the blockchain outside of its traditional decentralized, financial domain. We show how, even with only a single “mining” node, a proof-of-work blockchain can be the cornerstone of a tamper resistant logging framework. By attaching a proof-of-work to blocks of logging messages, we make it increasingly difficult for an attacker to modify those logs even after totally compromising the system. Furthermore, we discuss various strategies an attacker might take to modify the logs without detection and show how effective those evasion techniques are against statistical analysis.
Blockchain, Logging, Tamper-resistance
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This work is licensed under a Creative Commons Attribution 4.0 License.
Thomas H. Austin and Fabio Di Troia. "A Blockchain-Based Tamper-Resistant Logging Framework" Communications in Computer and Information Science (2022): 90-104. https://doi.org/10.1007/978-3-031-24049-2_6