\acro{AA}{Authorization Authority}
\acro{AT}{Authorization Ticket}
\acro{AU}{Application Unit}
\acro{BTP}{Basic Transport Protocol}
\acro{CA}{Certificate Authority}
\acro{CCU}{Communication \& Control Unit}
\acro{CRL}{Certificate Revocation List}
\acro{CTL}{Certificate Trust List}
\acro{EA}{Enrolment Authority}
\acro{ETSI}{European Telecommunications Standards Institute}
\acro{GN6ASL}{GeoNetworking to IPv6 Adaptation Sub-Layer}
\acro{GN}{GeoNetworking}
\acro{GNSS}{Global Navigation Satellite System}
\acro{GVL}{Geographical Virtual Link}
\acro{HSM}{Hardware Security Module}: a dedicated piece of hardware providing strictly regulated access to cryptographic operations based on stored data (e.g. keys)
\acro{IPv6}{Internet Protocol version 6}
\acro{ITS}{Intelligent Transportation Systems}
\acro{LLC}{Logical Link Control}
\acro{LS}{GeoNetworking Location Service}
\acro{LT}{GeoNetworking Location Table}
\acro{MAC}{Medium Access Control}
\acro{MITM}{Man-in-the-Middle}
\acro{OBU}{On-Board Unit}
\acro{OSI}{Open Systems Interconnection}
\acro{PKI}{Public Key Infrastructure}
\acro{RA}{Router Advertisement}
\acro{RSU}{Road-Site Unit}
\acroindefinite{RSU}{an}{a}
\acro{TA}{Trusted Authority}
\acro{V2X}{Vehicle-to-Everything}
\acro{VANET}{Vehicular Ad-Hoc Network}