Customer authentication system and authentication method

The present invention discloses a customer authentication system, including client, server online transactions, centralized trading system and two-factor authentication system, two-factor authentication system includes an asynchronous communication middleware, two-factor authentication system via asynchronous communication middleware integration to focus rear trading system, which at the same time ensure stable operation of the centralized trading system, to ensure the security of identity authentication. The present invention also discloses a method for customer authentication, read authentication centralized trading system authentication requests in the queue and sends authentication requests through asynchronous communication middleware platform, the processing result of the write-back processing platform authentication authentication into the centralized trading system response queue, centralized trading system authentication response authentication result queue back to the client to complete the authentication; Because two-factor authentication system for processing in a centralized trading system rear, thus ensuring authentication safe and reliable, not to be bypassed.