Open Source at A-SIT Plus

A VC-K-powered Compose Multiplatform identity wallet app supporting various VC types and formats. Not intended for production use, but gives a glimpse of what lies ahead for the EUDIW.

KMP (JVM and iOS) verifiable credentials library implementing the W3C VC data model, SD-JWT and ISO 18013-5 credentials. Issues (OpenID4VCI), presents (OpenID4VP), and verifies VCs.

Identity Wallet issuing backend based on VC-K and Spring Boot.

Identity Wallet relying party based on VC-K and Spring Boot.

Identity Wallet attestation flows, challenge provider, token issuance service, and status list management, based on VC-K and Warden Supreme.

Integrated Key- and App-Attestation Suite. Provides a unified interface for remotely establishing trust in iOS and Android clients. Comes with client and server components.

KMP crypto provider and PKI library supporting key and app attestation on iOS and Android. 100% pure Kotlin ASN.1 engine included! Interops with JOSE, COSE, JCA and iOS datatypes.

KMP (Android and iOS) device authentication capabilities check a library. Screen lock enabled? PIN set? Biometrics enrolled? AuthCheckKit tells you using a simple, unified API!

100% pure Kotlin Multiplatform (JVM, Android, iOS) library for working with JSON Paths as defined in RFC9535. It supports the function extensions specified in RFC9535 by default.

Kotlin multiplatform multibase encoder/decoder. This library is a port of Protocol Labs’ Kotlin/JVM multibase implementation. Its correctness verified against official test vectors.

100% pure Kotlin multiplatform zero-dependency IPv4/IPv6 library providing CIDR math. Parse, encode, and work with IP addresses and networks in a type-safe way on all Kotlin targets.

Propagating typed properties over untamed data using kotlinx.serialization. Lazy, deferred semantic parsing over wire data; indefinetely forward-compatible. Supports JSON. Slicing included!

100% pure Kotlin multiplatform ASN.1 codec. Comes with first-class kotlinx.serialization support. Stop writing ASN.1! Model Kotlin data classes.
Batteries included.

Automatically create sn SBOM for Gradle KMP projects. Accurate, split by target, including NPM packages.

JVM-style compileOnly dependen­cies for KMP! No bloat, no dirty tricks, just clean, modular APIs, and full toolchain compatibility – forever!

Custom Gradle Plugin used for our projects. Currently, it supports JVM-only projects and Kotlin Multiplatform projects. Also works as an example on how this can be done in general.

100% pure Kotlin multiplatform result class. Drop-in replacement for Kotlin’s stdlib Result, but usable from Swift and Objective C. Maps from/to Result.

Next-gen property testing, data-driven testing, FreeSpec test style, compacting, replaying, and type-safe fixtures for TestBalloon.

Kotlin (JVM+JS) implementation of the HCERT/DCC specification. Create and verify Electronic Health Certificates used during the second half of the COVID pandemic.

Swift library for validating Electronic Health Certificates (HCERT) po­pu­larized during the second half of the COVID pandemic. An iOS demonstration application is available.

KMP library implementing features of the Austrian electronic pupil ID (edu.digicard) as W3C Verifiable Credentials. Targets iOS, Android, and the JVM.

Java demo code for producing and verifying signed cashbox receipts compliant with the Austrian cashbox security regulation. Conceived in 2015. Apache-licensed; uses maven.