Systems and methods for login and authorization

A method for authorization comprising:

• receiving an authorization request from a third-party terminal;
• generating first two-dimensional-barcode information;
• sending the first two-dimensional-barcode information to the third-party terminal so that the third-party terminal displays a first two-dimensional-barcode image;
• validating user account information and the first two-dimensional-barcode information sent from a mobile terminal based on at least information associated with stored user account information and second two-dimensional-barcode information, wherein the first two-dimensional-barcode information sent from the mobile terminal is extracted by the mobile terminal from the first two-dimensional-barcode image displayed on the third-party terminal;
• and
• in response to the user account information and the first two-dimensional-barcode information being validated, sending an authorization and a predetermined user identifier to the third-party server;
• wherein:
• the authorization request includes authorization parameters;
• and
• the authorization parameters include an application identifier, authorization scope information, an application callback address, anti-disguise information and an application key.

A network server comprising:

• an authorization-request-receiving unit configured to receive an authorization request from a third-party terminal;
• a two-dimensional-barcode-generation unit configured to generate first two-dimensional-barcode information;
• a two-dimensional-barcode-sending unit configured to send the first two-dimensional-barcode information to the third-party terminal so that the third-party terminal displays a first two-dimensional-barcode image;
• a validation-information-receiving unit configured to receive user account information and the first two-dimensional-barcode information from a mobile terminal;
• a validation unit configured to validate the user account information and the first two-dimensional-barcode information based on at least information associated with stored user account information and second two-dimensional-barcode information generated by the two-dimensional-barcode-generation unit, wherein the first two-dimensional-barcode information sent from the mobile terminal is extracted by the mobile terminal from the first two-dimensional-barcode image displayed on the third-party terminal;
• and
• an authorization-information-sending unit configured to, in response to the user account information and the first two-dimensional-barcode information being validated, send an authorization and a predetermined user identifier to the third-party server;
• wherein:
• the authorization request includes authorization parameters;
• and
• the authorization parameters include an application identifier, authorization scope information, an application callback address, anti-disguise information and an application key.