论文标题

部分可观测时空混沌系统的无模型预测

Study and security analysis of the Spanish identity card

论文作者

Correa-Marichal, Javier, Caballero-Gil, Pino, Rosa-Remedios, Carlos, Sarwat-Shaker, Rames

论文摘要

储层计算是预测湍流的有力工具,其简单的架构具有处理大型系统的计算效率。然而,其实现通常需要完整的状态向量测量和系统非线性知识。我们使用非线性投影函数将系统测量扩展到高维空间,然后将其输入到储层中以获得预测。我们展示了这种储层计算网络在时空混沌系统上的应用,该系统模拟了湍流的若干特征。我们表明,使用径向基函数作为非线性投影器,即使只有部分观测并且不知道控制方程,也能稳健地捕捉复杂的系统非线性。最后,我们表明,当测量稀疏、不完整且带有噪声,甚至控制方程变得不准确时,我们的网络仍然可以产生相当准确的预测,从而为实际湍流系统的无模型预测铺平了道路。

The National Identity Document is a fundamental piece of documentation for the identification of citizens throughout the world. That is precisely the case of the DNI (Documento Nacional de Identidad) of Spain. Its importance has been enhanced in recent years with the addition of a chip for the authentication of users within telematic administrative services. Thus, the document has since been called: electronic DNI or simply DNIe. Sensitive user information is stored in that integrated circuit, such as personal and biometric data, along with signature and authentication certificates. Some of the functionalities of the DNIe in its current version at the time of writing this work have been implemented for years in the DNI 3.0 version launched in 2015, and therefore have already been extensively studied. This work provides a theoretical and practical compilation study of some of the security mechanisms included in the current DNIe and in some of the applications that require its use. It has been carried out using only mobile devices and generic card readers, without having any type of privileged access to hardware, software or specific documentation for the interception of packets between the DNIe and the destination application. In other words, it is an exploratory analysis carried out with the intention of confirming with basic tools the level of robustness of this very important security token.

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