Information security transmission method of data exchange platform based on lightweight AES encryption algorithm

When facing high traffic or complex network environments, existing secure transmission technologies may experience unstable transmission due to fluctuations in network bandwidth, server performance, and other factors, leading to a decrease in data transmission security and integrity. Design an information security transmission method for a data exchange platform based on lightweight AES encryption algorithm. Firstly, read the data transmitted by the exchange platform and preprocess the plaintext data. And based on the distribution of data attributes in the exchange platform, design the encoding of the data and establish the encoding coefficient matrix for transmitting the data. Then, an AES data exchange platform information encryption transmission model is constructed, using attribute encoded data as input to ensure information security. Finally, the optimal weight coefficients are obtained by evaluating the stability of the encrypted data transmission channel, and the interface frequency is adjusted by combining the synchronization processing mechanism and frequency compensation strategy to ensure the secure, stable, and compatible transmission of data on the exchange platform. The experimental results show that the encryption integrity rate of the design method is higher than 95 %, the amount of stolen information is relatively small, the encryption time is always below 4 s, and the anti attack performance is 0.98.