Security authentication and encrypted data transmission system and method of machine nest intelligent gateway

The invention belongs to the technical field of data transmission, and discloses a security authentication and encrypted data transmission system and method for a machine nest intelligent gateway, and the system comprises a two-factor authentication module which is used for implementing a two-factor authentication mechanism; the digital certificate management module is used for managing digital certificates of equipment and a user and ensuring the authenticity of identities of two communication parties; the end-to-end encryption module adopts an advanced encryption standard or a similar encryption technology to guarantee the security and integrity of data transmission; the dynamic key management module is used for regularly updating an encryption key and adopting a safe key exchange protocol; the data access control module is used for implementing data access control based on user roles and permissions; the audit log recording module is used for automatically recording detailed logs of all data access and mod