Abstract As a technological innovation, smart grid improves electricity services in terms of substantiality, economics, efficiency, and reliability. This owes to the bi-directional communication property which not only enables the fine-grained energy usage data to be available for different entities but also facilitates the automated grid management. However, sharing such energy usage data with other parties could potentially cause the leakage of customers’ sensitive information. In addition, the data are vulnerable to be tampered with by any internal or external attacker such that the value of data could be destroyed. Therefore, it is crucial to preserve customers’ privacy and provide authenticity and verifiability while sharing energy usage data with other parties. In this paper, we propose a bilinear-map accumulator based redactable signature scheme (RSS-BMA) which allows customers to safeguard their privacy while guaranteeing the verifiability of shared data. Furthermore, the batch-data-block verification property of our design enhances not only efficiency but also security by prohibiting additional redaction to a batch of data blocks. We analyze the efficiency and security of our proposed scheme extensively, and the results indicate our construction is more practical than others.

中文翻译：

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安全有效地共享经过身份验证的能源使用数据并保护隐私

摘要 作为一项技术创新，智能电网在实质性、经济性、效率和可靠性方面提高了电力服务。这归功于双向通信特性，它不仅使细粒度的能源使用数据可供不同实体使用，而且有助于自动化电网管理。但是，与其他方共享此类能源使用数据可能会导致客户敏感信息的泄露。此外，数据容易被任何内部或外部攻击者篡改，从而破坏数据的价值。因此，在与其他方共享能源使用数据的同时，保护客户隐私并提供真实性和可验证性至关重要。在本文中，我们提出了一种基于双线性映射累加器的可编辑签名方案 (RSS-BMA)，它允许客户在保证共享数据的可验证性的同时保护他们的隐私。此外，我们设计的批量数据块验证特性通过禁止对一批数据块进行额外编辑，不仅提高了效率，还提高了安全性。我们广泛分析了我们提出的方案的效率和安全性，结果表明我们的结构比其他方案更实用。