Base45/Zlib/COSE/CBOR is CBOR format data signed in COSE format, compressed in Zlib format, and converted to Base45 format.

EUDCC (EU Digital COVID Certificate) is used as the data format for QR codes. EUDCC is the common format for the COVID-19 vaccination certificate in the EU, also known as DGC (EU Digital Green Certificate) or Green Pass.

DenCode supports decoding only, and the decoded result is expressed in JSON format. The validity of the signature is not verified.