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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Clock Frequency Impact on the Performance of High-Security Cryptographic Cipher Suites for Energy-Efficient Resource-Constrained IoT Devices
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Clock Frequency Impact on the Performance of High-Security Cryptographic Cipher Suites for Energy-Efficient Resource-Constrained IoT Devices

机译：时钟频率对节能型资源受限物联网设备的高安全密码密码套件性能的影响

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摘要

Modern Internet of Things (IoT) systems have to be able to provide high-security levels, but it is difficult to accommodate computationally-intensive cryptographic algorithms on the resource-constrained hardware used to deploy IoT end nodes. Although this scenario brings the opportunity for using advanced security mechanisms such as Transport Layer Security (TLS), several configuration factors impact both the performance and the energy consumption of IoT systems. In this study, two of the most used TLS authentication algorithms (ECDSA and RSA) were compared when executed on a resource-constrained IoT node based on the ESP32 System-on-Chip (SoC), which was tested at different clock frequencies (80, 160 and 240 MHz) when providing different security levels (from 80 to 192 bits). With every tested configuration, energy consumption and average time per transaction were measured. The results show that ECDSA outperforms RSA in all performed tests and that certain software implementations may lead to scenarios where higher security-level alternatives outperform cryptosystems that are theoretically simpler and lighter in terms of energy consumption and data throughput. Moreover, the performed experiments allow for concluding that higher clock frequencies provide better performance in terms of throughput and, in contrast to what may be expected, less energy consumption.
机译：现代物联网（IoT）系统必须能够提供高安全级别，但是很难在用于部署IoT终端节点的资源受限的硬件上容纳计算密集型加密算法。尽管此方案为使用高级安全机制（例如传输层安全性（TLS））带来了机会，但一些配置因素会影响物联网系统的性能和能耗。在本研究中，比较了两种最常用的TLS认证算法（ECDSA和RSA）在基于ESP32片上系统（SoC）的资源受限的IoT节点上执行时的性能，并在不同的时钟频率下对其进行了测试（80 ，160和240 MHz）时提供不同的安全级别（从80位到192位）。使用每种经过测试的配置，均会测量能耗和每笔交易的平均时间。结果表明，在所有执行的测试中，ECDSA的性能均优于RSA，并且某些软件实现方案可能会导致更高安全级别的替代品的性能优于从理论上讲在能源消耗和数据吞吐量方面更简单，更轻便的加密系统。此外，所执行的实验可以得出结论，就吞吐量而言，更高的时钟频率可提供更好的性能，并且与预期的相反，它的能耗更低。

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