Method for realizing single sign-on assets based on two-dimensional code identity authentication

The invention discloses a method for realizing single sign-on assets based on two-dimensional code identity authentication, which includes the following steps: an ordinary user selects an asset withinthe permission scope at the login portal of a WEB 4A, and clicks on the login; a 4A background judges whether the login account and asset password of the asset have been taken over by 4A, a login two-dimensional code is generated if the login account and asset password of the asset have been taken over by 4A, otherwise, the user logs in by inputting an account and a password; a background database queries the login status of the login user on a palm 4A, a message is directly sent to the palm 4A of the user if the user has logged in, otherwise, the user is reminded to log into the palm 4A; theuser logs into the palm 4A and scans a two-dimensional code; and the palm 4A sends a confirmation message to the Web 4A, and the Web 4A logs into the asset after receiving the confirmation message. Thorough security verificat