SZ-SAS: A Framework for Preserving Incumbent User Privacy in SAS-Based DSA Systems
SZ-SAS: A Framework for Preserving Incumbent User Privacy in SAS-Based DSA Systems
复制标题
SZ-SAS：在基于 SAS 的 DSA 系统中保护现有用户隐私的框架
DOI：
10.1007/978-3-030-05490-8_8
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Yang, Yaling
中科院分区：
文献类型：
--
作者：
Zabransky, Douglas;Li, He;Lu, Chang;Yang, Yaling
动态频谱接入 (DSA) 是一种很有前景的缓解频谱拥挤的解决方案。然而，地理定位数据库驱动的频谱访问系统（SAS）存在隐私风险，因为敏感的现有用户（IU）操作参数需要由SAS存储才能正确执行频谱分配。如果 SAS 成为网络攻击或 SU 推理攻击的目标，这些敏感操作参数可能会受到损害。在本文中，我们提出了一种新颖的基于 SAS 的隐私保护 DSA 框架，Suspicion Zone SAS (SZ-SAS)。这是第一个框架，可防止 IU 分布稀疏的区域中的推理攻击场景以及不受信任或受损的 SAS 场景。评估结果表明，SZ-SAS能够利用兼容的混淆方案来防止SU推理攻击，同时仅使用同态加密的IU操作参数进行操作。
Dynamic Spectrum Access (DSA) is a promising solution to alleviate spectrum crowding. However, geolocation database-driven spectrum access system (SAS) presents privacy risks, as sensitive Incumbent User (IU) operation parameters are required to be stored by SAS in order to perform spectrum assignments properly. These sensitive operation parameters may potentially be compromised if SAS is the target of a cyber attack or SU inference attack. In this paper, we propose a novel privacy-preserving SAS-based DSA framework, Suspicion Zone SAS (SZ-SAS). This is the first framework which protects against both the scenario of inference attacks in an area with sparsely distributed IUs and the scenario of untrusted or compromised SAS. Evaluation results show SZ-SAS is capable of utilizing compatible obfuscation schemes to prevent the SU inference attack, while operating using only homomorphically encrypted IU operation parameters.