Integration Guide

Version 6.9

As of 16.03.2020

Contents

Document history

Date

Name

Change

16.03.2020

Peter Posse

Original version

About

Mobile SDK Authentication

General information about

Mobile SDK Authentication

This document describes the BNP SDK authentication method and the corresponding parameters for the request and the responses passed back. If a merchant develops an app of its own, this method is necessary so that secure authentication takes place via the BNP interface, independently of the app. The authentication is based on a one-off token that is exchanged between BNP and the merchant.

Further information about integration of the SDK can be found within GitHub repository at at https://github.com/Computopaxepta.

Process flow chart

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Process flow Mobile SDK Authentication

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Payment platform

interface

Mobile SDK authentication process

High level process overview:

1. Mobile SDK creates authentication request to merchant’s URL endpoint
2. Merchant’s URL endpoint generates AuthToken and AuthLabel
3. Merchant’s URL endpoint calls Computop BNP interface with below defined parameters
4. Merchant’s URL endpoint receives Computop BNP response
5. Merchant’s URL endpoint responds to Mobile SDK authentication request

For the authentication request, the merchant’s endpoint should accept a POST request with Content-Type: application/json and a JSON body like this:

{

  "merchantID" : <Computop<BNP_MerchantID>

}

The Mobile SDK expects a JSON object as response from merchant’s endpoint, so merchant’s endpoint needs to create a JSON object with attributes from the response and also the generated AuthToken and AuthLabel like this:

   {

        "AuthToken“: <generated_token>,

        "AuthLabel": <generated_label>,

        “ExpiryDate”: <expiry_date_of_token>

        "Description": <description_from_computopaxepta_response>,

        "Status": <status_from_computopaxepta_response>,

        "Code": <code_from_computopaxepta_response>

    }

Calling the interface

In order to register a one-off token for encryption on Computop PaygateBNP Payment platform, the merchant must transmit the following parameters to Computop BNP via a server-to-server connection. Enter Use the following URL to do this:

Notice: For security reasons, Paygate Payment platform rejects all payment requests with formatting errors. Therefore please use the correct data type for each parameter.

The following table describes the encrypted payment request parameters:

The following table gives describes the parameters with which the Paygate respondsPayment platform response parameters: