OMA DM Based Terminal Authentication Method, Terminal and Server

A terminal, comprising:

• a first module, configured to:
• initiate a registration request to a target server, wherein a user name, a password and a device identifier are carried;
• a second module, configured to:
• receive and store an access token generated through registration;
• and
• a third module, configured to:
• carry the access token and the device identifier in a message of initiating services to the target server for authentication.

A server, comprising:

• a first module, configured to:
• after receiving a registration request of a terminal, wherein the registration request carries a user name, a password and a device identifier, perform authentication according to the information in the registration request;
• a second module, configured to:
• receive and store an access token generated after a successful registration is made;
• and
• a third module, configured to:
• after receiving an authentication request carrying the access token and a device identifier sent by the terminal, perform authentication on the access token and the device identifier.