Department of Post Graduate Studies and Research in Mathematics, Jaywanti Haksar Govt. Post-Graduation College, College of Chhindwara University, Betul 460001, India.
Department of Electrical and Electronics Engineering, Faculty of Engineering, University of Lagos, Akoka, Lagos 100213, Nigeria.
Sensors (Basel). 2021 Oct 23;21(21):7039. doi: 10.3390/s21217039.
Signcryption schemes leveraging chaotic constructions have garnered significant research interest in recent years. These schemes have proffered practical solutions towards addressing the vast security vulnerabilities in Electronic Cash Systems (ECS). The schemes can seamlessly perform message confidentiality and authentication simultaneously. Still, their applications in emerging electronic cash platforms require a higher degree of complexity in design and robustness, especially as billions of online transactions are conducted globally. Consequently, several security issues arise from using open wireless channels for online business transactions. In order to guarantee the security of user information over these safety-limited channels, sophisticated security schemes are solely desired. However, the existing signcryption schemes cannot provide the required confidentiality and authentication for user information on these online platforms. Therefore, the need for certificateless group signcryption schemes (CGSS) becomes imperative. This paper presents an efficient electronic cash system based on CGSS using conformable chaotic maps (CCM). In our design, any group signcrypter would encrypt information/data with the group manager (GM) and send it to the verifier, who confirms the authenticity of the signcrypted information/data using the public criteria of the group. Additionally, the traceability, unforgeability, unlinkability, and robust security of the proposed CGSS-CCM ECS scheme have been built leveraging computationally difficult problems. Performance evaluation of the proposed CGSS-CCM ECS scheme shows that it is secure from the Indistinguishably Chosen Ciphertext Attack. Finally, the security analysis of the proposed technique shows high efficiency in security-vulnerable applications. Overall, the scheme gave superior security features compared to the existing methods in the preliminaries.
近年来，利用混沌构造的签密方案引起了人们的极大研究兴趣。这些方案为解决电子现金系统（ECS）中的巨大安全漏洞提供了实用的解决方案。这些方案可以无缝地同时执行消息机密性和身份验证。然而，它们在新兴的电子现金平台中的应用需要在设计和鲁棒性方面具有更高的复杂性，尤其是在全球进行数十亿笔在线交易的情况下。因此，使用开放的无线信道进行在线商业交易会引发一些安全问题。为了保证这些安全受限信道上用户信息的安全性，仅需要复杂的安全方案。然而，现有的签密方案不能为这些在线平台上的用户信息提供所需的机密性和身份验证。因此，需要使用无证书组签密方案（CGSS）。本文提出了一种基于 CGSS 的使用一致混沌映射（CCM）的高效电子现金系统。在我们的设计中，任何组签密器都将使用组管理器（GM）对信息/数据进行加密，并将其发送给验证器，验证器使用组的公共标准来确认签密信息/数据的真实性。此外，使用计算上困难的问题构建了所提出的 CGSS-CCM ECS 方案的可追踪性、不可伪造性、不可链接性和强大的安全性。对所提出的 CGSS-CCM ECS 方案的性能评估表明，它可以抵御可区分选择密文攻击。最后，对所提出技术的安全性分析表明，它在安全漏洞应用方面具有高效率。总体而言，与初步研究中的现有方法相比，该方案提供了更高的安全特性。
