Abstract

In this research paper, an opamp-based simple chaotic circuit is designed exhibiting coexisting chaotic attractors with application in IoT secure data communication is presented. It is interestingly, that this circuit with, only three multipliers and with a few opamps was implemented with OrAD-Pspice, which displays a chaotic attractor. And the coexisting phenomena were also observed by varying initial conditions. This implies it increases the encryption space for IoT secure communication. Finally, an application in IoT for secure data communication, an analog circuit was implemented using the chaotic Masking method. The proposed chaotic masking was verified for single encryption, and double encryption and the original data was decrypted at the receiver successfully using OrAD-Pspice. However, we also prove that when the encrypted signal was decrypted with a different encryption signal other than the transmitted encryption signal, the original signal was not decrypted successfully at the receiver. Also, the proposed coexisting chaotic circuit can be easily manufactured at low cost because of simple circuit implementation compared to nano-based devices such as memristor.