emvlab.org
Updates in June 2017: For more details on updates to EMVLab, including HTTPS and better handling of 3-byte and unknown tags see my blog post.
Name Description Source Format Template Tag Length P/C
Proprietary Authentication Data Contains issuer data for transmission to the card in the Issuer Authentication Data of an online transaction. For a cryptogram defined by the Common Core Definitions with a Cryptogram Version of '4', the Proprietary Authentication Data element shall be 0 bytes long. The only Cryptogram Version currently defined for the Common Core Definitions is '4'. Issuer b 0–8

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