事件处理系统的访问策略整合

B. Schilling, B. Koldehofe, K. Rothermel, U. Ramachandran
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引用次数: 12

摘要

当前的事件处理系统缺乏在随后应用的流操作链中保护传入事件流的隐私约束的方法。这在大型分布式应用程序(如物流链)中是一个问题,其中事件处理操作符可能分布在多个安全域。攻击者可以从合法接收的传出事件流推断出事件处理系统的机密输入流。提出了一种用于复杂事件处理的细粒度访问管理方法。每个传入事件流都可以通过访问策略规范加以保护,并通过访问整合算法加以实施。通过以可伸缩的方式提供和计算事件流混淆的度量,提高了事件处理系统的效用。作为访问策略一部分的混淆阈值允许忽略访问需求并交付已经达到足够高的混淆级别的事件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Access Policy Consolidation for Event Processing Systems
Current event processing systems lack methods to preserve privacy constraints of incoming event streams in a chain of subsequently applied stream operations. This is a problem in large-scale distributed applications like a logistic chain where event processing operators may be spread over multiple security domains. An adversary can infer from legally received outgoing event streams confidential input streams of the event processing system. This paper presents a fine-grained access management for complex event processing. Each incoming event stream can be protected by the specification of an access policy and is enforced by algorithms for access consolidation. The utility of the event processing system is increased by providing and computing in a scalable manner a measure for the obfuscation of event streams. An obfuscation threshold as part of the access policy allows to ignore access requirements and deliver events which have achieved a sufficient high obfuscation level.
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