React Native Holder SDK

SDK Capabilities

The React Native Holder SDK offers tools to assist developers integrating the following capabilities into their React Native applications:

Claim credentials:
- Interact with an issuer to retrieve mDoc, CWT and JSON credentials as per OID4VCI.
Present an mDoc
- Present a claimed JSON credential for verification via a presentation workflow.
- Present a claimed mDoc for verification via a proximity presentation workflow as per ISO 18013-5.
- Present a claimed mDoc for verification via a remote (online) presentation workflow as per ISO/IEC 18013-7:2024 and OID4VP.

You can see all of these capabilities in action by downloading and using the MATTR GO Hold example app, built using the React Native Holder SDK.

To get started with this SDK, please contact us so we can work together to find the best solution for you.

Below is a summary of ISO/IEC 18013-5:2021 features supported by the React Native Holder SDK:

Feature	Supported options	Default
Device engagement	QR code	QR code
Device retrieval data transport	BLE with either `mDocPeripheralServer` or `mDocCentralClient` mode	BLE with `mDocPeripheralServer`
Ephemeral session key curve	Any NIST P-* keys	P-256 key using secure enclave
Device authentication mode	Digital Signature or ECDH-agreed MAC	Digital Signature with a P-256 key using secure enclave

Below is a summary of ISO/IEC 18013-7:2024 features supported by the React Native Holder SDK:

Feature	Options Supported	Default Option Selected
Data Retrieval methods	OID4VP	OID4VP
Wallet Invocation	Custom URL and QR Code-based	Both
MDoc Reader validation	Stored verifier certificates, client Metadata retrieval	Both
Authorisation Response Encryption	ECDH in Direct Key Agreement mode	ECDH in Direct Key Agreement mode

This SDK is meant for integration into React Native applications using React Native 0.73 and above. Supported operating systems are: