The Global Wearable market is anticipated to rise at a considerable rate in the next coming years and communication is a fundamental block in any wearable device. In communication, encryption methods are being used with the aid of microcontrollers or software implementations, which are power-consuming and incorporate complex hardware implementation. Internet of Things (IoT) devices are considered as resource-constrained devices that are expected to operate with low computational power and resource utilization criteria. At the same time, recent research has shown that IoT devices are highly vulnerable to emerging security threats, which elevates the need for low-power and small-size hardware-based security countermeasures. Chaotic encryption is a method of data encryption that utilizes chaotic systems and non-linear dynamics to generate secure encryption keys. It aims to provide high-level security by creating encryption keys that are sensitive to initial conditions and difficult to predict, making it challenging for unauthorized parties to intercept and decode encrypted data. Since the discovery of chaotic equations, there have been various encryption applications associated with them. In this paper, we comprehensively analyze the physical and encryption attacks on continuous chaotic systems in resource-constrained devices and their potential remedies. To this aim, we introduce different categories of attacks of chaotic encryption. Our experiments focus on chaotic equations implemented using Chua's equation and leverages circuit architectures and provide simulations proof of remedies for different attacks. These remedies are provided to block the attackers from stealing users' information (e.g., a pulse message) with negligible cost to the power and area of the design.

翻译：全球可穿戴设备市场预计在未来几年将大幅增长，而通信是可穿戴设备的基本组成部分。在通信中，加密方法通常借助微控制器或软件实现，这些方法功耗较高且涉及复杂的硬件实现。物联网设备被视为资源受限设备，需要以低计算能力和低资源利用率标准运行。同时，近期研究表明，物联网设备极易受到新兴安全威胁的影响，这凸显了对低功耗、小尺寸硬件安全防护措施的需求。混沌加密是一种利用混沌系统和非线性动力学生成安全加密密钥的数据加密方法。它通过创建对初始条件敏感且难以预测的加密密钥来提供高级安全性，使得未经授权的方难以拦截和解读加密数据。自混沌方程发现以来，已有多种与之相关的加密应用。本文全面分析了资源受限设备中连续混沌系统面临的物理攻击与加密攻击及其潜在应对措施。为此，我们介绍了混沌加密的不同攻击类别。我们的实验聚焦于基于蔡氏电路实现的混沌方程，利用电路架构进行仿真，并针对不同攻击提供了应对措施的仿真验证。这些应对措施旨在以极低的功耗和面积开销，阻止攻击者窃取用户信息（例如脉冲消息）。