Dynamic Scalable Elliptic Curve Cryptographic Scheme and Its Application to In-Vehicle Security
Dynamic Scalable Elliptic Curve Cryptographic Scheme and Its Application to In-Vehicle Security
复制标题
动态可扩展椭圆曲线密码方案及其在车载安全中的应用
DOI：
10.1109/jiot.2018.2869872
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发表时间：
2019
影响因子：
10.6
通讯作者：
Lin Qiuzhen
中科院分区：
文献类型：
--
作者：
Wang Jia;Li Jianqiang;Wang Huihui;Zhang Leo Yu;Cheng Lee-Ming;Lin Qiuzhen
在车联网背景下，为资源受限的车载设备（如传感器、微控制器和执行器）设计统一、高效、轻量级的加密平台仍然是学术界和工业界面临的一个开放且具有挑战性的问题。椭圆曲线密码学（ECC）被认为是下一代通信的有前途的加密算法，因为它可以提供相同的强大的安全级别，当与当前使用的Rivest-Shamir-Adleman算法相比时，使用相对较小的密钥大小。然而，传统ECC具有使用固定曲线的缺点，这使得它非常容易被深入分析，但很难为具有不同指令长度的处理器的板上设备构建一个统一的平台。针对上述问题，提出了一种动态可扩展的椭圆曲线密码体制。为了同步使用中的曲线，生成不同安全级别的曲线列表并在双方上保存。由于双方随机选择曲线和素数，可以提供额外的安全级别，即使使用较小的密钥大小，安全级别仍然保持不变，同时提高计算效率，降低功耗，特别适合于在板载嵌入式设备中的应用。详细的实验结果表明，所提出的方案提高了效率的30%，平均与传统的ECC实现类似的安全水平相比。因此，所提出的可扩展ECC方案作为统一的密码平台对于这些车载设备来说更经济。
The design of unified, efficient, and lightweight cryptographic platform for resource-constrained on-board devices such as sensors, microcontrollers, and actuators in the context of Internet of Vehicles remains an open and challenging problem, for both academic and industry. Elliptic curve cryptography (ECC) is considered as a promising encryption algorithm for the next generation communications, as it could provide the same strong security level using relatively smaller key size when compared to the currently used Rivest–Shamir–Adleman algorithm. However, traditional ECCs have the disadvantage of using a fixed curve, making it very easy to be intensively analyzed while being hard to construct a united platform for on-board devices with processors of different instruction lengths. To mitigate the above problem, this paper suggests a dynamic scalable elliptic curve cryptosystem. To synchronize the curve in use, a curve list of different security levels is generated and preserved on both parties. Since both parties randomly choose the curve and the prime number, a extra security level could be provided, so that the security level can still remain the same even using smaller key sizes, while the computation efficiency will be enhanced and the power consumption will be reduced, which is especially suitable for the application in on-board embedded devices. Detailed experimental results illustrate that the presented scheme improves the efficiency by 30% in average when compared with traditional ECC implementations on a similar security level. Therefore, the proposed scalable ECC scheme as a unified cryptographic platform is more economic for these on-board devices in vehicles.