Authentication is to verify whether the user has access to the system. The mainstream authentication method is to use authentication authorization to verify whether the digital signature is correct.
Authentication includes two aspects:
1. User authentication: the network authenticates users to prevent illegal users from occupying network resources.
2. Network authentication: users authenticate the network to prevent users from accessing illegal networks and being defrauded of key information.
Extended data
Common authentication types:
1, HTTP basic authentication.
2. Session cookie.
3. Token verification.
4.OAuth (oauth2.0)。
The requirements of mobile network for authentication opportunities;
1, 2G and 3G networks
Authentication occurs before calling, starting, location updating and deactivating, activating, registering or deleting supplementary services.
2, 2G network
Proportional certification.
3.3G network
Users must authenticate when accessing the network for the first time, and then enable Proportional Authentication.
4.IMS network
Users can authenticate at any time.
Baidu encyclopedia-authentication