TESLA-for-5G: Broadcast Authentication for 5G Networks Using TESLA
The TESLA-for-5G protocol replaces costly digital signature verification for 5G System Information Block 1 (SIB1) messages with efficient symmetric MAC checks. It combines the lightweight GG09 IBS for initial trust and TESLA for steady-state authentication, significantly reducing UE computational burden and daily verification costs by 55–65% compared to signature-only methods.