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- W3186010717 abstract "Access control is a fundamental component of the design of distributed ledgers, influencing many aspects of their design, such as fairness, efficiency, traditional notions of network security, and adversarial attacks such as Denial-of-Service (DoS) attacks. In this work, we consider the security of a recently proposed access control protocol for Directed Acyclic Graph-based distributed ledgers. We present a number of attack scenarios and potential vulnerabilities of the protocol and introduce a number of additional features which enhance its resilience. Specifically, a blacklisting algorithm, which is based on a reputation-weighted threshold, is introduced to handle both spamming and multi-rate malicious attackers. The introduction of a solidification request component is also introduced to ensure the fairness and consistency of network in the presence of attacks. Finally, a timestamp component is also introduced to maintain the consistency of the network in the presence of multi-rate attackers. Simulations to illustrate the efficacy and robustness of the revised protocol are also described." @default.
- W3186010717 created "2021-08-02" @default.
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- W3186010717 date "2021-07-20" @default.
- W3186010717 modified "2023-09-26" @default.
- W3186010717 title "Secure Access Control for DAG-based Distributed Ledgers" @default.
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- W3186010717 doi "https://doi.org/10.48550/arxiv.2107.10238" @default.
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