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Distributed Access Control Based on Proxy Signature in Medical Cyber-Physical Systems

机译：基于医疗网络 - 物理系统代理签名的分布式访问控制

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Background: Since the patient-related data stored in the MCPS (Medical Cyber-PhysicalSystem) play a critical role in medical diagnosis and treatment, it is essential to ensure the security ofthese data. Failure to obtain authentic and correct medical data will possibly prevent a patient frombeing treated effectively, or even lead to wrong treatments, also described in various patents. Moreover,public may not accept MCPS technology if enough attention is not paid to address various securityand privacy concerns in MCPS. Especially access to patient-related data must be strictly limitedonly to authorized users; otherwise, the patients’ privacy could be abused.Methods: In this paper, one of PSWs proposed by Shao, proxy-unprotected, is introduced in our proposedprotocol. Based on this method, we propose our distributed access control based on proxy signaturein medical cyber-physical systems.Results: The proposed protocol achieves the requirements for access control in the following aspects:Firstly, the authorized users are able to access the nodes in a distributed manner. Secondly, it providesan effective user authentication mechanism. Thirdly, it supports different user privileges. Fourthly, itprotects the integrity of query command. The timestamp included in the query command can ensurethe freshness of the query command. In addition, it can also be used to prevent replay attacks whenthe command exceeds the life time.Conclusion: We have proposed a novel distributed dissemination code scheme for MCPS. The securityanalysis show that the technique guarantees strong unforgeability, verifiability, strong identifiability,strong undeniability and prevention of misuse. Moreover, security of the proposed techniquedoes not rely on the availability of a secure channel.
机译：背景：由于存储在MCP（医学网络 - 物理系统）中存储的患者相关数据在医学诊断和治疗中发挥着关键作用，因此必须确保数据的安全性。未能获得真实和正确的医疗数据可能会阻止患者有效处理，甚至导致错误的治疗，也在各种专利中描述。此外，如果没有支付足够的关注以解决MCPS的各种担保和隐私问题，则公众可能不接受MCPS技术。特别是对患者相关数据的访问必须严格地仅限于授权用户;否则，患者的隐私可以滥用。方法：在本文中，在我们的拟议协议中介绍了Shao，Proxy-Unprotected的PSWS之一。基于此方法，我们提出了基于代理Signature的分布式访问控制医学网络物理系统。结果：提出的协议在以下几个方面实现了对访问控制的要求：首先，授权用户能够访问一个节点分布式方式。其次，它提供了有效的用户身份验证机制。第三，它支持不同的用户权限。第四，ITPRotectS Query命令的完整性。查询命令中包含的时间戳可以确保查询命令的新鲜度。此外，它还可以用于防止重放攻击Whenthe命令超出寿命。结论：我们提出了一种用于MCP的分布式传播规范方案。 SecurityAnalysis表明，该技术确保了强大的不可折合，可核算，强大的可识别性，强烈的不可言论和预防滥用。此外，所提出的技术的安全性不依赖于安全频道的可用性。

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