Secret-Key Generation: Information Theoretic Viewpoint and Application Perspectives

密钥生成：信息论观点和应用前景

• 批准号: 404840508
• 负责人: Nima Tavangaran
• 金额: --
• 依托单位: Department of Electrical and Computer Engineering
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/404840508?language=en
• 关键词: Secret; Key; Generation; Information; Theoretic

The main goal of this project is to address the physical layer security in the context of practical implementation conditions. In particular, we are interested in enhancing the classical secret-key generation models which are based on discrete memoryless sources into more practical settings. To this end, we will generalize four main application related aspects of these models and derive their secret-key capacities. The first generalization concerns the source uncertainty in which the probability distribution of the source is unknown. It is only assumed that the distribution belongs to an arbitrary known compound set. In this case, the secret-key generation protocol should guarantee security and reliability of the generated secret-key for all sources in the compound set. The second and third generalizations concern time continuity and source memory. Through these extensions, the participants can observe the source in a continuous time manner and each observation might be in general dependent on the previous ones. By means of the last generalization we allow also sources with continuous alphabets. These four extensions of the classical scenarios pave the way to study a very practically relevant model, i.e. secret-key generation using continuous time compound Gaussian sources with memory. In this regard, both single-input single-output and multiple-input multiple-output scenarios can be modeled and studied. These kind of generalizations are not yet intensively studied for secret-key models in literature to date. We believe that the expected results in this project will enrich the knowledge of information theoretic security with practical applications.

该项目的主要目标是在实际实施条件的背景下解决物理层安全性。特别是，我们有兴趣增强基于离散的无内存源为更实际的设置的经典秘密键发电模型。为此，我们将概括这些模型的四个主要与应用程序相关的方面，并得出其秘密键容量。第一个概括涉及源概率分布未知的源不确定性。仅假定该分布属于任意已知的化合物集。在这种情况下，Secret-Key生成协议应保证化合物集中所有来源生成的Secret-Key的安全性和可靠性。第二和第三概括涉及时间连续性和源内存。通过这些扩展，参与者可以以连续的时间方式观察来源，并且每个观察结果一般都取决于先前的观察。通过最后一个概括，我们还允许具有连续字母的来源。经典方案的这四个扩展为研究一个非常实际相关的模型的方式，即使用连续的时间复合高斯源与内存相关的秘密键生成。在这方面，可以对单输入单输出和多输入多输出方案进行建模和研究。迄今为止，尚未针对文献中的秘密键模型进行深入研究。我们认为，该项目的预期结果将通过实际应用丰富信息理论安全的知识。