Introduction to certification

Authentication refers to verifying whether the user has access to the system.

Authentication includes two aspects:

User authentication: the network authenticates users to prevent illegal users from occupying network resources.

Network authentication, users authenticate the network to prevent users from accessing illegal networks and being defrauded of key information.

Extended data:

The requirements of mobile network for authentication opportunity are as follows:

In 2G and 3G networks, authentication occurs before the start, call, location update and activation, deactivation, registration or deletion of supplementary services.

In 2G networks, operators all adopt the "proportional authentication" scheme.

In 3G networks, users must authenticate when accessing the network for the first time, and then enable the "proportional authentication" scheme.

In IMS network, the network can authenticate users at any time through registration or re-registration process.

References:

Baidu encyclopedia-authentication