App2App Authentication is an authentication mechanism that allows two applications to communicate and exchange information securely without direct user interaction using access tokens or digital certificates sent from one application to another to authenticate requests

Common examples are when a mobile app accesses a backend server API without requiring user re-login, or when two cloud services communicate with each other.

If a customer has developed his own mobile application and wants to use secure iDiGi authentication, a slight adjustment to the customer’s application can easily initiate communication between his mobile application and the iDiGi application so that it can be used securely. login, authentication and authorization and digital signature function.This approach is often used for integration between applications, where one application requires access to data or services provided by another application, and the authentication process is performed in the background to ensure security and trust.

This movie shows how the client application starts communicating with the iDiGi application on the mobile device to use the service authentication function of iDiGi.


When authentication is successful, the user name will appear on the screen. The client application can communicate with the iDiGi application on the same mobile device or can connect via the iDiGi application on another mobile device by scanning the QR Code to gain access to the iDiGi service.

This demo shows Android-to-Android and iOS-to-Android Link via communication. In the second part of the video is scanned by the iDiGi iOS application the QR code displayed on the Android device. The iDiGi iOS app acts as a gateway to connect to iDiGi services

After signing the NDA we will send the source code of the client sample application so you as the developer can build the client application for testing yourself or modify the appearance to your needs.

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