Due to the openness of the Internet of Things (IoT) and the influx of low-quality data from unreliable data circulators, data owners are faced with the risk of identity and sensitive information leakage during IoT data transmission. Superior performance in ensuring the confidentiality and trustworthiness of data transmission is shown by the multi-receiver signcryption mechanism. However, the security requirements of IoT data transmission in terms of privacy protection, on-demand participation, and resistance to malicious behavior still fail to be fully met by existing multi-receiver signcryption schemes. An trusted transmission scheme integrating multidimensional decision attribute-based signcryption is proposed by integrating multi-dimensional decision attributes with multi-receiver signcryption. Potential issues such as privacy leakage, unqualified participation, and malicious data publishing in IoT data transmission are aimed to be addressed by the scheme. A rigorous security analysis of the proposed scheme is conducted in the random oracle model. Additionally, lower computational complexity and communication overhead are achieved by the proposed scheme compared to related schemes, as demonstrated by simulation results.
针对物联网数据传输中存在的隐私泄露、非法参与、恶意数据发布等风险,本文提出一种融合多维决策属性的签密可信传输方案。在 IMDAS 方案中,DO 仅需对所属数据执行一次签名,即可与多个 DU 安全地传输共享数据。同时,DO 可选择性披露部分属性凭证,以此证明其具备参与众包计算任务的资质,任意 DR 均可在不获取 DO 真实身份、身份凭证及其他属性的前提下,验证密文的有效性。经严格的安全性分析验证,IMDAS 方案满足预期安全属性,包括机密性、匿名性、细粒度身份验证、可追踪性及不可否认性。此外,仿真实验结果表明,IMDAS 方案相较于所选取的对比方案,具备更低的计算复杂度与通信开销。后续将把所设计的 IMDAS 机制应用于物联网实际应用场景。
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