We have created new API's that support encoding and decoding messages described in the Vehicle-to-Everything (V2X) ASN.1 standards.  These include SAE J2735 DSRC (Dedicated Short Range Communication) as well as the ETSI CAM (Cooperative Awareness Message) and DENM (Decentralized Environmental Notification Message) message sets.  API's are available for C/C++ for Windows and Linux, and in Java.  Please see the V2X ASN.1 DLL information page for more details or to download a free, 30-day evaluation version.