SDK d’authentification sécurisé
Android & iOS — Identité, biométrie et connexion sans mot de passe
As Lead Developer, we built an Android and iOS SDK, along with demonstration apps, for digital identity management. The solution offered several secure login methods — email, Google, Facebook, biometrics, Face ID and passwordless authentication.
PRÉSENTATION DU PROJET
Comment le produit a été structuré
The overview is split into context, platform, architecture, and stack so the delivery shape is easier to scan.
CONTEXTE PRODUIT
The SDK gave client applications a ready-to-integrate identity layer: email, Google and Facebook login, biometric authentication with Touch ID and Face ID, and a FIDO2-based passwordless flow — all backed by modern OAuth 2.0 and PKCE security.
Stack technique
Les technologies utilisées pour livrer et faire évoluer le produit.
EN BREF
Qu’avons-nous construit pour ce SDK d’identité ?
As Lead Developer, we built an Android and iOS SDK, along with demonstration apps, for digital identity management — offering email, Google, Facebook, biometric, Face ID and passwordless login. The project…
How it worked
The solution shipped as native Android (Kotlin, Java) and iOS (Swift) SDKs built with Clean Architecture, using Retrofit and Alamofire for networking. Identity flows were secured with OAuth 2.0 and PKCE, with a dedicated FIDO2 module enabling passwordless authentication and biometric login via Touch ID and Face ID. Bitrise handled continuous integration, and demo applications were published on Google Play and the App Store to support client evaluation and onboarding...
Engineering focus
- OAuth 2.0 and PKCE protocol implementation for secure identity flows
- FIDO2-based module for passwordless authentication
- Biometric integration — Touch ID and Face ID — across Android and iOS
What changed
- Simpler, more secure authentication for end users
- Easier integration of the identity system into client applications
- Improved SDK quality, documentation and delivery process
- Consistent support for Android and iOS journeys
ENJEUX D’INGÉNIERIE
Là où se trouvait la complexité
These were the main constraints the product architecture had to solve before launch.
Challenge 01
Multiplatform SDK design — Android and iOS SDK development for consistent integration across client applications
Challenge 02
Modern secure protocols — implementing OAuth 2.0, PKCE, FIDO2 and secure identity management on both platforms
Challenge 03
Industrialization — continuous integration, documentation, demo applications and client support for smooth adoption
RESPONSABILITÉ TECHNIQUE
Ce que notre équipe a pris en charge
The delivery scope covered product engineering, supporting systems, and production readiness.
Developed the Android and iOS SDKs and demo applications
Integrated Google and Facebook login
Implemented OAuth 2.0 and PKCE protocols
Built a FIDO2 module for passwordless authentication
Integrated biometrics, Touch ID and Face ID
Improved asynchronous call handling and error management
Set up continuous integration with Bitrise
Wrote technical documentation and supported clients
Published the demo applications on Google Play and the App Store
FONCTIONNALITÉS CLÉS
Les capacités qui font la différence
Multi-method login
Email, Google and Facebook sign-in alongside biometric login, all through a single SDK.
Passwordless authentication
A FIDO2-based module removing the need for passwords while keeping identity flows secure.
Biometrics
Touch ID and Face ID integration for fast, secure login across both platforms.
Secure by design
OAuth 2.0 and PKCE protocols underpinning every authentication flow.