Cloud storage services have grown extensively in recent years. For privacy and security purposes, outsourced data must be encrypted. Therefore, searching the encrypted cloud-stored data is a big challenge. Although there are plenty of searchable encryption schemes, most rely on keywords located in the encrypted data instead of more complex searching criteria. Moreover, they do not consider the malicious coercer issue. In this paper, we propose a searchable encryption scheme that supports expressive keyword-matching conditions and provides deniable searchability to the user.

中文翻译：

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拒绝搜索加密的云存储数据

近年来，云存储服务得到了广泛的发展。出于隐私和安全目的，必须对外包数据进行加密。因此，搜索加密的云存储数据是一个很大的挑战。尽管有很多可搜索的加密方案，但大多数都依赖于位于加密数据中的关键字，而不是更复杂的搜索条件。而且，他们不考虑恶意胁迫问题。在本文中，我们提出了一种可搜索的加密方案，该方案支持表达性的关键字匹配条件，并为用户提供了可拒绝的可搜索性。