DocsCredential holdingAndroid mDocs Holder SDK

Android mDocs Holder SDK

The Android mDoc Holder SDK is based on the ISO/IEC 18013-5 standard which establishes an interoperable digital representation of mobile-based credentials such as mobile drivers licenses (mDL). However, this SDK can extend the same technology and architecture to more then just mDLs, but rather any conforming mobile document (mDoc) - a term defined in ISO/IEC 18013-5.

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SDK Capabilities

The SDK offers tools to assist developers integrating the following capabilities into their Android applications:

Supported ISO/IEC 18013-5 Features

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

FeatureSupported optionsDefault
Device engagementQR codeQR code
Device retrieval data transportBLE with either mDocPeripheralServer or mDocCentralClient modeBLE with mDocPeripheralServer
Ephemeral session key curveAny NIST P-* keysP-256 key using secure enclave
Device authentication modeDigital Signature or ECDH-agreed MACDigital Signature with a P-256 key using secure enclave

Supported ISO/IEC 18013-7 Features

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

FeatureOptions SupportedDefault Option Selected
Data Retrieval methodsOID4VPOID4VP
Wallet InvocationCustom URL and QR Code-basedBoth
MDoc Reader validationStored verifier certificates, client Metadata retrievalBoth
Authorization Response EncryptionECDH in Direct Key Agreement modeECDH in Direct Key Agreement mode

System requirements

This SDK is developed in the Kotlin programming language and is meant for integration into Android applications. It currently supports Android 7 (API level 24) and above.

Additional resources

References