Table of Contents

• How to use the Procivis One Wallet
• Getting started
• Background
• eIDAS 2.0
• Interoperability and conformance
• Supported standards
• Support
• License

The Procivis One Wallet is a digital wallet solution for decentralized digital identities and credentials. The Wallet enables the secure storage, management, and sharing of identity data, credentials, and attributes as needed via a multitude of technologies and protocols.

The Procivis One Wallet uses the [Procivis One Core][core] for all SSI functionality via the One Core React Native SDK.

The Procivis One Core is a complete solution capable of powering every element of the digital identity credential lifecycle. See the key features and complete solution architecture.

How to use the Procivis One Wallet

• Use the Wallet for a free-standing solution that can be white-labeled
• Use the One Core React Native SDK to embed wallet capabilities into an existing app
• Use the [One Core React Components][comp] library for UI elements for your digital wallet app

Getting started

Trial

The fastest way to get started with the Procivis One Wallet is to download the app from the iOS or Android app stores and join our Trial Environment. In the trial environment, you are given control of an organization on our server solution, the Procivis One Desk, and can quickly begin issuing and verifying credentials.

Documentation

See our documentation:

• Core SDK Reference
• Docs home

Installation

App Flavors

Building

Each flavor has a separate configuration script defined in package.json file, named rnuc:{flavor}.

To build the app using one of flavors, configuration script needs to be called before starting the bundler and compiling the app. For example, to build Dev Wallet flavor for iOS, run:

yarn rnuc:dev
yarn build-ios

or to debug same flavor:

yarn rnuc:dev
yarn start
yarn ios

Linking packages

1. Install yalc: yarn global add yalc
2. Go to dep package and increase package version in package.json
3. Run in dep package: yalc publish --push
4. Go to one-wallet and run: yalc add my-package-name

Configurations, UI themes, and assets

There are .env files in the app/config folder of the project for each of the app flavors. For each flavor there is a separate config file in app/config/flavors/{CONFIG_NAME} defining the backend urls, and Aries connections. In the same folder, there is an assets configuration containing flavor-specific assets for some UI components like a splash screen, or credential cards. In addition, each flavor has a UI theme defined in app/theme/flavors/{CONFIG_NAME} i.e. a color scheme, and palette.

Icons and splashscreens

For each flavor, there is a separate set of icons and splashscreens in Android and iOS projects.

Android

Splashscreen under android/app/src/main/res/values/styles.xml Square icon under android/src/main/res/minimap-{screen-size}/ic_launcher_{CONFIG_NAME}.png Round icon under android/src/main/res/minimap-{screen-size}/ic_launcher_{CONFIG_NAME}_round.png

iOS

Splashscreen image is added in assets folder under Splashscreen.{CONFIG_NAME} image set, and in addition there is a separate Storyboard named LaunchScreen.{CONFIG_NAME}.storyboard for each flavor. Icons are in asstes folder under AppIcon.{CONFIG_NAME} image set.

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Detox E2E

In order to run the E2E tests, one needs to build a proper detox app build first:

See the .detoxrc.js for all possible configurations.

Android

• build (once)

npx detox build --configuration android.emu.release

• run tests

npx detox test --configuration android.emu.release

iOS

npx detox build --configuration ios.sim.release

npx detox test --configuration ios.sim.release

Useful command

• Restart adb server

adb kill-server
adb start-server

SBOM

Source:

• https://github.com/CycloneDX/cdxgen

Installation:

• Install cdxgen

npm install -g @cyclonedx/cdxgen

• Install blint (python) for generate android SBOM (optional)

pip install blint

• Prepare env

export FETCH_LICENSE=true

• ReactNative SBOM

cdxgen --required-only -p -t js -o react-native-sbom.json

• Android (Java) SBOM

cdxgen --required-only -p -t java -o android-sbom.json

Background

Decentralized digital identities and credentials is an approach to identity that relocates digital credentials from the possession and control of centralized authorities to the digital wallet of the credentials holder. This architecture eliminates the need for the user to "phone home" to use their credentials as well as the verifier to communicate to the issuer via back-channels, keeping the wallet holder's interactions private between only those parties directly involved in each interaction. This model of digital identity is often referred to as Self-Sovereign Identity, or SSI.

eIDAS 2.0

If you want to provide an EUDI Wallet, Procivis One provides production grade open source components to get certified and connect your organization to the eIDAS 2.0 ecosystem.

For an EUDI Wallet, use the One Core React Native SDK for embedding into an existing app, or use the Procivis One Wallet with adaptations to fit your needs.

If you want to issue into an EUDI Wallet or offer services to an EUDI Wallet holder, use the [Procivis One Core][core].

Interoperability and conformance

Procivis One is built using open standards and tested to ensure interoperability with different software vendors and across different international regulatory ecosystems.

• W3C standards
  • The W3C offers several test suites for standards conformance. See the latest test results for Procivis One at canivc.com.
• ISO/IEC 18013-5 mDL
  • Procivis One's implementation of the ISO mDL standard is compatible with the OpenWallet Foundation's verifier: Procivis One can successfully issue mDL credentials to a Procivis One Wallet, and these credentials can successfully be verified by the OpenWallet Foundation's verifier. See the OpenWallet Foundation libraries.
• eIDAS 2.0; EUDI Wallet
  • The EU Digital Wallet is developing issuer and verifier testing for interoperability in mdoc and SD-JWT formats using OID4VC protocols. We follow the ongoing development of the testing platform and regularly test against it.

We continue to look for more opportunities for interoperability testing as the standards and regulations mature and harden.

Supported standards

Credential models

W3C VC

• W3C Verifiable Credentials Data Model 2.0 in the following variations:

Securing mechanism	Supported representations	Supported proof/signature types
W3C Data Integrity Proofs (embedded)	JSON-LD in Compacted Document Form	W3C Data Integrity ECDSA Cryptosuites v1.0 / ecdsa-rdfc-2019 W3C Data Integrity EdDSA Cryptosuites v1.0 / eddsa-rdfc-2022 W3C Data Integrity BBS Cryptosuites v1.0 / bbs-2023
W3C VC-JOSE-COSE (enveloping)	SD-JWT JWT	JOSE / ECDSA ES256 JOSE / EdDSA Ed25519 JOSE / CRYSTALS-DILITHIUM 3 CRYDI3*

* CRYSTALS-DILITHIUM is a post-quantum resistant signature scheme, selected by NIST for Post-Quantum Cryptography Standardization. Support for the recently published FIPS-204 is planned for the near future.

ISO mdoc

• [ISO/IEC 18013-5:2021][iso] standard for mdoc credentials.
  • COSE proofs
    • ECDSA ES256
    • EdDSA Ed25519

IETF SD-JWT VC

• IETF SD-JWT-based Verifiable Credentials:

Standard	Supported representations	Supported proof/signature types
IETF SD-JWT VC	SD-JWT	JOSE / ECDSA ES256 JOSE / EdDSA Ed25519 JOSE / CRYSTALS-DILITHIUM 3 CRYDI3*

* CRYSTALS-DILITHIUM is a post-quantum resistant signature scheme, selected by NIST for Post-Quantum Cryptography Standardization. Support for the recently published FIPS-204 is planned for the near future.

Exchange and transport

• OpenID for Verifiable Credentials
  • OID4VCI; ID-1
  • OID4VP; ID-2
    • OID4VP over BLE; optimized version of Draft 00
    • OID4VP over MQTT; proprietary adaptation of "OID4VP over BLE" via MQTT channel
• ISO/IEC 18013
  • 18013-5: QR code engagement and offline device retrieval over BLE
  • 18013-7: Online data retrieval via OID4VP

Key storage

• Secure Enclave (iOS) and Android Keystore (TEE or Strongbox)
• Internal encrypted database

Revocation methods

• Bitstring Status List v1.0
• Linked Validity Verifiable Credentials (LVVC)
• Token Status List - Draft 03

Support

Need support or have feedback? Contact us.

License

Some rights reserved. This library is published under the Apache License Version 2.0.

© Procivis AG, https://www.procivis.ch.