Flutter SDK: Cross-Platform Identity Verification with WebAssembly Edge

Seamless Cross-Platform IntegrationDidit's Flutter SDK provides a unified Dart API with native iOS and Android SDKs, simplifying the integration of complex identity verification flows into your cross-platform applications.

Advanced Biometric and Document VerificationThe SDK supports critical features such as NFC passport reading (ePassport/eID) for high-security verification, alongside passive and active liveness detection to combat deepfakes and spoofing attacks.

WebAssembly for Edge PerformanceBy leveraging WebAssembly, Didit brings powerful identity processing capabilities directly to the device's edge, enhancing speed, security, and user experience by reducing reliance on constant cloud communication.

Didit's Modular and AI-Native ApproachDidit offers a flexible, AI-native identity platform, ensuring that developers can easily compose verification workflows, benefit from Free Core KYC, and integrate advanced features without setup fees.

The Rise of Flutter for Cross-Platform Identity Verification

In today's digital-first world, secure and efficient identity verification is paramount. As businesses expand their reach across various platforms, the demand for robust, cross-platform solutions has never been higher. Flutter, Google's UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase, has emerged as a frontrunner in this space. Its ability to deliver beautiful, high-performance applications rapidly makes it an ideal choice for integrating complex features like identity verification.

However, implementing advanced identity checks, such as ID Verification (OCR, MRZ, barcodes), Passive & Active Liveness, and NFC Verification, directly into a Flutter app can be challenging. Developers often face hurdles like managing platform-specific dependencies, ensuring compliance, and optimizing performance. This is where specialized SDKs become indispensable, abstracting away much of this complexity and allowing developers to focus on their core application logic.

Unlocking Advanced Verification Capabilities with Didit's Flutter SDK

Didit's Flutter SDK is engineered to address these challenges head-on. It provides a comprehensive Dart API that seamlessly interfaces with native iOS and Android SDKs, offering a unified development experience. This means you can integrate a full suite of identity verification features, including cutting-edge biometric and document checks, with minimal platform-specific code.

Key capabilities include:

• ID Verification (OCR, MRZ, barcodes): Swiftly capture and process data from government-issued identity documents. Didit's SDK leverages advanced OCR technology to extract information accurately, ensuring a smooth user experience.
• Passive & Active Liveness: Combat deepfakes and presentation attacks with sophisticated liveness detection. This crucial fraud prevention tool verifies that the user is a real, present person, not a spoofed image or video.
• 1:1 Face Match & Face Search: Securely compare a user's live biometric data against a reference photo, enhancing the integrity of the verification process.
• NFC Verification (ePassport/eID): For the highest level of assurance, the SDK supports NFC reading of ePassports and eIDs (requiring iOS 15+). This feature directly extracts cryptographically signed data from the document's chip, providing an unparalleled level of trust.

These features are critical for industries ranging from financial services to online gaming, where robust identity assurance is non-negotiable.

The Power of WebAssembly at the Edge

A significant innovation in modern identity verification is the utilization of WebAssembly (Wasm) for edge processing. WebAssembly allows high-performance code, originally written in languages like C++ or Rust, to run directly within the client's browser or device with near-native speed. Didit leverages WebAssembly to bring powerful computational tasks, such as parts of its AI-native verification logic, closer to the user.

The benefits of WebAssembly at the edge for identity verification are manifold:

• Enhanced Performance: By processing data locally, response times are dramatically improved, leading to a faster and more fluid user experience.
• Reduced Latency and Bandwidth: Less data needs to be sent to and from cloud servers, decreasing network latency and bandwidth consumption.
• Improved Security: Sensitive biometric data can be processed on the device, minimizing its exposure during transit and enhancing privacy.
• Offline Capabilities: Certain verification steps can function even with intermittent or no internet connectivity, improving resilience.

This edge-centric approach, combined with Flutter's cross-platform efficiency, positions Didit's SDK as a leading solution for modern identity needs.

Integrating Didit's Flutter SDK: A Developer's Perspective

Didit prides itself on being developer-first, offering an instant sandbox, comprehensive public documentation, and clean APIs. Integrating the Flutter SDK is designed to be straightforward. After adding the didit_sdk package to your pubspec.yaml, you handle platform-specific setup for iOS and Android, which includes adding the DiditSDK pod for iOS and configuring packaging resources for Android.

The typical workflow involves:

1. Backend Session Creation: Your server initiates a verification session with Didit via a simple API call, providing a workflow_id and optional vendor_data. This call returns a session_token.
2. Flutter App Integration: The session_token is passed to your Flutter application. You then use the Didit SDK to launch the verification flow, which guides the user through steps like document capture, liveness checks, and NFC scans.
3. Real-time Results: Didit sends automated updates to your configured webhook URL as the user progresses and when the final verification result is ready, allowing your application to react accordingly.

This modular approach allows you to compose custom verification workflows in the Didit Business Console, ensuring that you only implement the checks necessary for your specific use case.

How Didit Helps

Didit is the AI-native, developer-first identity platform that provides an open, modular identity layer for the internet. Our Flutter SDK, combined with our robust backend services, empowers businesses to integrate world-class identity verification into their applications with unprecedented ease and flexibility. We offer:

• Free Core KYC: Get started with essential identity verification at no cost, making robust KYC accessible to businesses of all sizes.
• Modular Architecture: Our platform is built on composable identity primitives, allowing you to pick and choose the verification checks you need, from ID Verification and Passive & Active Liveness to NFC Verification and AML Screening.
• AI-Native Design: Leverage cutting-edge AI for superior accuracy, fraud detection, and a frictionless user experience. Our systems are constantly learning and adapting to new threats.
• No Setup Fees: We believe in transparent and fair pricing, enabling you to integrate advanced identity solutions without initial financial barriers.
• Developer-First Experience: With clean APIs, comprehensive documentation, and an instant sandbox, developers can quickly integrate and deploy identity solutions.

Whether you need to perform age verification with our privacy-preserving Age Estimation, ensure compliance with AML Screening & Monitoring, or secure accounts with Phone & Email Verification, Didit provides the tools to build trust and automate verification globally.

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