Data transmission method, storage medium, electronic equipment and automatic fare collection system

Abstract

The invention relates to a data transmission method, a storage medium, electronic equipment and an automatic fare collection system. The method comprises the steps that after encrypted first data sent by a client side in communication connection with a server is received, acquiring a first private key, wherein a server generates and stores a first secret key pair comprising the first private key and a first public key in advance; and decrypting the encrypted first data by using the first private key to obtain the first data, wherein the data sent to the server by each client communicating with the server is obtained by encrypting by using the first public key. The first private key is only stored in the server and does not need to be transmitted through a network, so that the risk of leakage of the first private key is reduced, and the security of data transmission is improved. Besides, the server only needs to generate and store a pair of public and private keys, so the management of the keys is more convenient, and great convenience is brought to the later upgrade and maintenance of the AFC system.

Description

technical field [0001] The present disclosure relates to the technical field of communication, and in particular, to a data transmission method, a storage medium, electronic equipment, and an automatic fare collection system. Background technique [0002] The AFC system is an information system that realizes the entire process of rail transit ticket sales, ticket inspection, billing, charging, statistics, clearing and settlement, and operation management through the comprehensive use of professional knowledge such as computers, networks, statistics, auditing, and finance. Such as figure 1 As shown, the AFC system is divided into five layers from top to bottom, namely, the AFC Clearing Center (ACC), the Line Central Computer (LCC) subsystem, and the Station Computer (SC) subsystem , Station Field Equipment (Station Level Equipment, SLE). Among them, the station computer subsystem includes station computer SC, ticket center (Ticket Center, TC) and maintenance center (Maintai...

AI Technical Summary

Problems solved by technology

Since AES is a symmetric encryption algorithm, both the encryption and decryption parties need to save the key, and need to use the network for key exchange. There is a risk of key leakage, so the security of the transmitted data will not be guaranteed.

Moreover, the AFC system usually includes hundreds or thousands of clients (for example, SLE). Since both encryption and decryption parties need to save keys, the server needs to save a large number of keys, and the cost of key management is high.

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