Logo of Sealva App

Sealva - VDS Validator

Sealva is a mobile app for scanning, parsing and verifying Visible Digital Seals (VDS).

What is Sealva?

Sealva enables you to scan VDS codes on offical documents and verify their contents. The app supports verification of visual digital seals according to the ICAO 9303 and BSI TR-03137 specifications and provides a user-friendly interface for displaying the data.

It uses the open source Kotlin multiplatform library VdsTools for parsing and decoding the barcode content.

Currently, all profiles defined in BSI TR-03137-1, ICAO 9303-13, and the new draft “ICAO Datastructure for Barcode” are read and decoded. Administrative documents according to BSI TR-03171 are currently not supported due to profile definitions and certificates that are not freely accessible.

Features

  • Scan visible digital seals using the mobiles camera
  • Parse and decode the data contained in the Seal
  • Clear presentation of contained information
  • Cryptographic verification of digital signatures
  • Using Certificate sets either provided central or using your own certificates
  • Support for various VDS types according to ICAO 9303 and BSI TR-03137

Download

The app is available for free:

Technical Documentation (for developers)

Privacy Policy