Apple Pay: Error message: There was an error processing the payment data. Unable to decrypt data.

[vrangasa1]

I'm using python library for making transaction for Apple Pay.

And I'm sending the opaquedata.dataValue as the base64 encoded data that contains the version, data, signature, header(ephemeralPublicKey, publicKeyHash, transactionId).

I'm getting the following error:

Failed Transaction.
Error Code: 153
Error message: There was an error processing the payment data. Unable to decrypt data.

 Any help is much appreciated.

[vrangasa1]

After regenerating the certificate in the Apple Certificates, Identifiers & Profiles page, authorize.net is able to decrypt the data. But I'm getting the following error now:

Failed Transaction.
Error Code: 153
Error message: There was an error processing the payment data. Required fields are missing from decrypted data.

Any help is much appreciated.