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Some decoders for the data used in EMV credit card transactions.

There is a newer version: 0.1.8

# Annex C1, EMV 4.3 Book 3

(1,7)=1 : SDA supported
(1,6)=1 : DDA supported
(1,5)=1 : Cardholder verification is supported
(1,4)=1 : Terminal risk management is to be performed
(1,3)=1 : Issuer authentication is supported
(1,1)=1 : CDA supported

# From Table 11, Amex Expresspay Terminal Specification 3.0
(2,8)=0 : Magstripe Mode Only Supported
(2,8)=1 : EMV and Magstripe Modes Supported
(2,7)=1 : Expresspay Mobile supported