Objective Systems has prepared a white paper with our thoughts about encoding ASN.1 types in CBOR.
CBOR (Concise Binary Object Representation) is a standardized binary encoding format (similar to JSON, but binary) described by RFC 8949. CBOR is perhaps the most widely used JSON binary serialization format at this time. Unlike others, it has been standardized by a leading Internet standards body (the IETF). This paper provides a mapping of ASN.1 to CBOR to provide a way for users of ASN.1 standards to work with data in this format.
You can view the white paper here.