Data Security Encryption Method Based on Improved AES Algorithm

There is a certain correlation between the keys in the process of e-commerce transaction data encryption, and due to the large data, the encryption time is too long, leaving serious security risks. In order to solve this problem, this paper designs a secure encryption method of electronic commerce transaction data based on improved AES algorithm. Firstly, the e-commerce transaction mode is analyzed, and multiple private chains are established to realize transaction processing. In the database, each enterprise uses its own certificate to generate the key of AES encryption algorithm. Affine transformation is used to transform the affine S-box of AES encryption algorithm, and use pseudo-random number key stream to realize data encryption and decryption. So far, the design of secure encryption method for e-commerce transaction data has been completed. The experimental results show that this method can shorten the data encryption time and has certain application value.