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Dkls Keyshare Object

Keyshare class represents a ECDSA Keyshare. This class hold memory pointer to the keyshare in the sdk and handle various useful operations on the keyshare.

Import​

main.dart
import 'package:duo_dkls_flutter/duo_dkls_flutter.dart' as dkls;

// Then you can use it as
dkls.Keyshare;

Usage​

main.dart
  // Get public key and key id from keyshare
  final publicKey = keyshare.publicKeyBase64;
  final publicKeyHex = keyshare.publicKeyHex;
  final keyId = keyshare.id;

  // Derive child public key from keyshare
  final derivedPublicKey = keyshare.deriveChildPublicKeyHex('m');

  // Get keyshare bytes
  final keyshareBytes = keyshare.toBytes();

  // Recreate keyshare from keyshare bytes
  final keyshareFromBytes = dkls.Keyshare.fromBytes(keyshareBytes);

  // After all operation free up memory
  keyshare.free();

Properties​

id​

String *id**

ID of the keyshare in base64

publicKeyBase64​

String publicKeyBase64

Public key of the keyshare in base64 format

Accessors​

publicKeyHex​

String publicKeyHex

Public key of the keyshare in hex format

handle​

int handle

Handle of keyshare in int

Methods​

deriveChildPublicKeyHex()​

String deriveChildPublicKeyHex(derivationPath)

Derive child public key from keyshare in hex

Parameters​

• String derivationPath

BIP 32 derivation path

Returns​

String

Derived public key (string hex encode)

deriveChildPublicKeyBase64()​

String deriveChildPublicKeyBase64(derivationPath)

Derive child public key from keyshare in base64

Parameters​

• String derivationPath:

BIP 32 derivation path

Returns​

String

Derived public key (string base64 encode)

free()​

void free()

Free up the native memory allocated for the keyshare

Returns​

void

toBytes()​

Uint8List toBytes()

Get the keyshare in bytes

Returns​

Uint8List

Keyshare in bytes format

fromBytes()​

Keyshare.fromBytes(bytes)

Create a Keyshare instance from bytes

Parameters​

• Iterable<int> bytes

base64 encoded string of the keyshare

Returns​

Keyshare

Keyshare instance