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System reliability has always been a challenging issue for many systems. In order to achieve high reliability, redundancy and voting schemes are often used to tolerate unintentional component failures. For unintentional failures caused by, for instance, normal wear-outs, hardware failures, or software bugs, etc., adding more redundancies often improves a system's reliability. However, when attack-caused...
Voting algorithms are often used to improve a system's reliability through fault tolerance. However, when both the reliability of individual voters and the existence of rational attackers are taken into consideration, the number of voters that participate in an actual voting process determines the fault-and-attack tolerance performance of voting algorithms. In this paper, we are to find an optimal...
Distributed systems usually provide services with varying criticalities. Failures of core services lead to catastrophic consequences to the system. Maintaining system core services' availability with limited resources has become a challenging issue, especially when system operates in an adversary environment and face malicious under attack. This paper discusses the attacker-defender problem and analyzes...
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