Managing and using industrial Big Data is a big challenge for every industrial enterprise manager. By using the cloud technology, enterprises can handover the task of heavy data management to reliable hands and focus on their main business. Though cloud technology has numerous advantages, there are several privacy and security issues involved. One way in which cloud providers respond to this issue is with their key management service, where encryption keys are used to protect sensitive data present in the cloud. This paper discusses crucial hierarchy-based key management technique called Privacy-Preserving Based on Characteristic Encryption for privacy preservation in the cloud environment.

中文翻译：

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基于可审计访问的基于属性加密的云位置加密记录保密

管理和使用工业大数据是每个工业企业管理者的一大挑战。通过使用云技术，企业可以将繁重的数据管理任务交给可靠的人，专注于自己的主业。尽管云技术具有众多优势，但也涉及到一些隐私和安全问题。云供应商应对此问题的一种方式是使用他们的密钥管理服务，其中加密密钥用于保护云中存在的敏感数据。本文讨论了关键的基于层次结构的密钥管理技术，称为基于特征加密的隐私保护，用于云环境中的隐私保护。