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Calculate the composition and signaling footprint of 3GPP authentication vectors across generations.
Awaiting Vector Select
Authentication and Key Agreement (AKA) is the security mechanism used in GSM, UMTS, LTE, and 5G to mutually authenticate the UE and the network, as well as to derive ciphering/integrity keys. The data payload of an Auth Vector (AV) varies significantly between generations, affecting HSS/UDM signaling capacity.
Introduced K_ASME (32 bytes) which serves as the base key for the MME security context, ensuring separation from the Home Subscriber Server.
Enhances security by derived K_SEAF and adding home control features to prevent redirection attacks in roaming scenarios.
Auth vectors are typically requested in batches. A batch of 5 LTE vectors consumes ~340 bytes plus transport overhead (Diameter/HTTP2).