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Architecture for diversity in the implementation of dependable and secure services using the state machine replication approach

机译：使用状态机复制方法实现可靠和安全服务的多样性架构

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The dependability and security properties of a system could be impaired by a failure or by an opponent that exploits its vulnerabilities. State Machine Replication (SMR) is a technique widely used to implement fault-tolerant systems, mitigating these risks. Unfortunately, the proposed SMR solutions do not implement diversity and all replicas execute the same software. Consequently, the same attack or software bug could compromise the whole system. This work proposes an architecture to allow diversity in the implementation of dependable and secure services using the SMR approach. The goal is not to implement different versions of a SMR library, but to use an underlying SMR library and provide means to implement and execute service replicas (the application code) in different programming languages. The main problems addressed are twofold: communication among different languages; and data representation. The proposed architecture was integrated in BFT-SMaRt and a set of experiments showed its practical feasibility.
机译：故障或利用其漏洞的对手可能会削弱系统的可靠性和安全性。状态机复制（SMR）是一种广泛用于实施容错系统的技术，可减轻这些风险。不幸的是，提出的SMR解决方案没有实现多样性，并且所有副本都执行相同的软件。因此，相同的攻击或软件错误可能会损害整个系统。这项工作提出了一种体系结构，该体系结构允许使用SMR方法实现可靠和安全服务的多样性。目标不是实现SMR库的不同版本，而是使用基础SMR库并提供以不同的编程语言实现和执行服务副本（应用程序代码）的方法。解决的主要问题有两个方面：不同语言之间的交流;和数据表示。所提出的体系结构已集成到BFT-SMaRt中，并进行了一系列实验，证明了其实际可行性。

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