Blacklist management method for ibc-based distributed authentication framework

A method for managing and distributing a blacklist of User Equipment IDs (UE IDs) in a network comprising a plurality of groups of networks, each of the plurality of groups of networks comprising a blacklist server, a plurality of authentication servers, and a Package Key Generator (PKG), wherein the method comprises the blacklist server:

• storing a blacklist containing UE IDs that are not allowed to gain access to the network in the blacklist server;
• transmitting the blacklist to the plurality of authentication servers in the same group;
• receiving a message;
• determining a content in the message is an order to add a new revoked UE ID in the blacklist;
• updating the blacklist in the blacklist server to include the new revoked UE ID;
• and
• sending an update blacklist message to the plurality of authentication servers in the same group.

A method for managing and distributing a blacklist of User Equipment IDs (UE IDs) in a network comprising a plurality of groups of networks, each of the plurality of groups of networks comprising a blacklist server, a plurality of authentication servers, and a Package Key Generator (PKG), wherein the method comprises the PKG:

• receiving an order to add a new revoked UE ID the blacklist;
• determining the groups of networks associated with the UE ID;
• and
• sending an update blacklist message to the blacklist servers of the determined groups.