a Python library for decrypting Apple Pay payment tokens.
ApplePay reference https://developer.apple.com/library/ios/documentation/PassKit/Reference/PaymentTokenJSON/PaymentTokenJSON.html
Apple's intermediate and root certificates
$ wget 'https://www.apple.com/certificateauthority/AppleAAICAG3.cer'
$ wget 'https://www.apple.com/certificateauthority/AppleRootCA-G3.cer'Install
Installing library into your environment:
$ pip install applepayUsage
Step by step:
from applepay import payment as apple
# payment_json value example:
#
# {"data":"<<Base64EncodedData>>",
# "header":
# {"publicKeyHash":"<<Base64EncodedData>>",
# "ephemeralPublicKey":"<<Base64EncodedData>>",
# "transactionId":"<<HexifiedData>>"},
# "version":"EC_v1"}
certificate_pem = open('merchant_cert.pem', 'rb').read()
private_key_pem = open('merchant_private_key', 'rb').read()
payment = apple.Payment(certificate_pem, private_key_pem)
decrypted_json = payment.decrypt(payment_json['header']['ephemeralPublicKey'], payment_json['data'])
# decrypted_json value example
# {
# "applicationPrimaryAccountNumber"=>"4804123456789012",
# "applicationExpirationDate"=>"190123",
# "currencyCode"=>"123",
# "transactionAmount"=>700,
# "deviceManufacturerIdentifier"=>"123456789012",
# "paymentDataType"=>"3DSecure",
# "paymentData"=> {
# "onlinePaymentCryptogram"=>"<<Base64EncodedData>>",
# "eciIndicator"=>"5"
# }
# }Testing
#FIXME
