verificac19 1.0.4

Unofficial EU Digital Green Certificate validation SDK for Flutter apps

About

This package allows to decode and validate any EU Digital Green Certificate in your Flutter application. It is based on the specications contained in the official it-dgc-verificac19-sdk-android repository. For now it only supports the download of validation rules from the Italian Backend.

Development & testing

• Clone the repository

git clone https://github.com/mastro993/verificac19_flutter.git

• Get packages

cd verificac19_flutter

flutter pub get

• QR codes for testing can be obtained from this link: https://dgc.a-sit.at/ehn/testsuite

Installation

flutter pub add verificac19

Usage

Setup

First thing to do is to initialize the package. This allows to all internal initializations to be done.

await VerificaC19.initialize();

Download and cache rules, CRL data and DSCs

You can download and cache rules, CRL data and DSCs using the update function.

await VerificaC19.update();

Verify a DGC

You can decode and get a Certificate object from raw data using the getCertificateFromRaw function

Certificate cert = await VerificaC19.getCertificateFromRaw('HC1:NCFOXN%TSMAHN-H3ZSUZK+.V0ET9%6-AH...');

You can verify a DGC from a Certificate object or directly base45 encoded raw data.

// Validate Certificate object
ValidationResult result = await VerificaC19.validateCertificate(cert);
// or base45 encoded raw data
ValidationResult result = await VerificaC19.validateFromRaw('HC1:NCFOXN%TSMAHN-H3ZSUZK+.V0ET9%6-AH...');

ValidationResult object contains a CertificateStatus which can have the following values:

	Code	Description
✅	valid	Certificate is valid
❌	notValid	Certificate is not valid
❌	notValidYet	Certificate is not valid yet
❌	notEuDCC	Certificate is not an EU DCC

You can also provide a ValidationMode parameter.

Code	Description
normalDGP	Normal verification (default value)
superDGP	Super Green Pass verification

Example:

ValidationResult result = await VerificaC19.validateCertificate(cert, mode: ValidationMode.normalDGP);
// or
ValidationResult result = await VerificaC19.validateCertificate(cert, mode: ValidationMode.superDGP);

Examples

An example application is currently WIP.

TODOs

• ❌ Add the ability to retrieve/validate a Certificate from image
• ❌ Add the ability to custom data providers other than the Italian one (https://get.dgc.gov.it/v1/dgc)