SEPA Adyen encrypt

# generate encrypted details
var date = new Date();
var sepaData = {
    iban : $(this).find('[name=iban]').val(),
    ownerName : $(this).find('[name=ownerName]').val(),
    countryCode : $(this).find('[name=countryCode]').val(),
    generationtime : date.toISOString()
};
var encryptedDetails = cseInstance.encrypt(sepaData);

# pass as bankAccount.encrypted.json
{
  "amount": {
    "value": 100,
    "currency": "EUR"
  },
  "reference": "payment-2017-1-14-13-sepa",
  "merchantAccount": "xxxx",
  "selectedBrand" : "sepadirectdebit",
  "additionalData": {
    "bankAccount.encrypted.json": "adyenjs_0_1_xxxx"
  }
}

# error
{
  "status": 422,
  "errorCode": "000",
  "message": "Please supply paymentDetails",
  "errorType": "validation",
  "pspReference": "8514870837720365"
}