基于身份验证的指定测试者加密与关键字搜索,在云系统中的应用

IF 3.7 2区 计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
Danial Shiraly , Ziba Eslami , Nasrollah Pakniat
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引用次数: 0

摘要

云计算的出现使云服务器外包越来越受到数据所有者的青睐。然而,在云服务器上存储敏感数据给数据的安全性和隐私性带来了严峻的挑战。带关键字搜索的公钥认证加密(PAEKS)是一种有效的方法,既能保护信息机密性,又能支持关键字搜索。基于身份的关键字搜索认证加密(IBAEKS)是 PAEKS 在基于身份设置下的变体,旨在解决棘手的证书管理问题。据我们所知,文献中只存在两种 IBAEKS 方案,这两种方案的安全模型都很薄弱,容易受到所谓的全选关键词攻击。此外,现有的 IBAEKS 方案都基于耗时的双线性配对操作,导致计算成本大幅增加。为了克服这些问题,本文首先提出了 IBAEKS 的增强安全模型,并与现有模型进行了比较。然后,我们证明现有的 IBAEKS 方案在我们的增强模型中并不安全。我们还提出了一种高效的无配对 dIBAEKS 方案,并证明它在增强安全模型下是安全的。最后,我们将提出的方案与相关结构进行比较,以说明其整体优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Designated-tester Identity-Based Authenticated Encryption with Keyword Search with applications in cloud systems

The advent of cloud computing has made cloud server outsourcing increasingly popular among data owners. However, the storage of sensitive data on cloud servers engenders serious challenges for the security and privacy of data. Public Key Authenticated Encryption with Keyword Search (PAEKS) is an effective method that protects information confidentiality and supports keyword searches. Identity-Based Authenticated Encryption with Keyword Search (IBAEKS) is a PAEKS variant in identity-based settings, designed for solving the intractable certificate management problem. To the best of our knowledge, only two IBAEKS schemes exist in the literature, both presented with weak security models that make them vulnerable against what is known as Fully Chosen Keyword attacks. Moreover, the existing IBAEKS schemes are based on the time-consuming bilinear pairing operation, leading to a significant increase in computational cost. To overcome these issues, in this paper, we first propose an enhanced security model for IBAEKS and compare it with existing models. We then prove that the existing IBAEKS schemes are not secure in our enhanced model. We also propose an efficient pairing-free dIBAEKS scheme and prove that it is secure under the enhanced security model. Finally, we compare our proposed scheme with related constructions to indicate its overall superiority.

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来源期刊
Journal of Systems Architecture
Journal of Systems Architecture 工程技术-计算机:硬件
CiteScore
8.70
自引率
15.60%
发文量
226
审稿时长
46 days
期刊介绍: The Journal of Systems Architecture: Embedded Software Design (JSA) is a journal covering all design and architectural aspects related to embedded systems and software. It ranges from the microarchitecture level via the system software level up to the application-specific architecture level. Aspects such as real-time systems, operating systems, FPGA programming, programming languages, communications (limited to analysis and the software stack), mobile systems, parallel and distributed architectures as well as additional subjects in the computer and system architecture area will fall within the scope of this journal. Technology will not be a main focus, but its use and relevance to particular designs will be. Case studies are welcome but must contribute more than just a design for a particular piece of software. Design automation of such systems including methodologies, techniques and tools for their design as well as novel designs of software components fall within the scope of this journal. Novel applications that use embedded systems are also central in this journal. While hardware is not a part of this journal hardware/software co-design methods that consider interplay between software and hardware components with and emphasis on software are also relevant here.
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