Card data for Basic Payment

This extension returns to the merchant new information related to the authorized payment in addition to the payment/status response. In case the payment transaction was successfully authorised, this extension returns masked card number and expiration.

This extension is not available in the basic setup. Please contact akceptacekaret@csob.cz for activation of the extension for your merchant account.

Extension parameters in payment/status response

Newly added parameter is extensions, contains a list of all activated extensions for a given operation. Extension maskCln will be returned only in payment/status response in case the payment transaction was successfully authorised.

Description of maskCln extension parameters

Parameters in bold will always be returned

Item	Type	Description
extension	String	Extension ID (assigned by the gateway). It is always maskCln for this particular extension.
dttm	String	Date and Time of the response (format YYYYMMDDHHMMSS).
maskedCln	String	Short masked card number ****XXXX, where XXXX are the last four digits of the card number.
expiration	String	Card expiration date (MM/YY).
longMaskedCln	String	Long masked card number PPPPPP****XXXX, where PPPPPP are the first six digits and XXXX are the last four digits of the card number.
signature	String	Extension signature, BASE64 encoded.

Example of a response to payment/status call with the maskCln extension

{
  "dttm": "20220125131601",
  "payId": "ff41e84b7e33@HA",
  "resultCode": 0,
  "resultMessage": "OK",
  "paymentStatus": 7,
  "authCode": "453708",
  "signature": "base64-encoded-response-signature",
  "extensions": [
    {
     "extension": "maskCln",
      "dttm": "20220125131601",
      "maskedCln": "****0209",
      "expiration": "11/23",
      "longMaskedCln": "415461****0209",
      "signature": "base64-encoded-extension-signature"
    }
  ]
}

Cryptographic signature calculation is based on the string of parameters in exactly the same order as listed in the specification (see above).

maskCln|20220125131601|****0209|11/23|415461****0209

Note: Signature of the core parameters remains unchanged. The extensions item does not affect the calculation of the payment/status response. Each extension has its own signature.

Extension signature and its validation uses the same algorithm SHA1withRSA (for API 1.7 and older) or SHA256withRSA (for API 1.8 and newer).