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Supported Features

This page lists what Silent Shard Duo supports across its SDKs. If you are new to Duo, start with the Introduction for what it is and which chains each signature scheme covers.

We regularly expand what the SDKs support. If you don't see what you're looking for, contact us; we may already be working on it.

Features Overview

FEATURE
SERVER
REACT NATIVE
FLUTTER
IOS
ANDROID
Key Generation
✓
✓
✓
✓
✓
Sign Generation
✓
✓
✓
✓
✓
Key Refresh
✓
✓
✓
✓
✓
Key Import
✓
✓
✓
✓
✓
Key Export
✓
✓
✓
✓
✓
Derivation Path
✓
✓
✓
✓
✓
Presign
ECDSA only
✓
✓
✓
✓
✓
Key Recovery
✓
✓
✓
✓
✓

Supported schemes

Signature-scheme support by SDK:

SDKECDSA (EVM)EdDSA (Solana)Taproot (Bitcoin)ML-DSA (post-quantum)
React NativeYesYesComing soonYes
FlutterYesYesYesComing soon
KotlinYesYesComing soonComing soon
SwiftYesYesComing soonComing soon

ML-DSA currently supports key generation and signing only. Taproot (Bitcoin P2TR) is available on the Flutter SDK, with the other SDKs coming soon. See Chain Support for the chains each scheme covers.