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Function Signature

Future<Map<String, String>> ejectPrivateKeys({
  required PortalBackupMethod method,
  String? password,
  String? cipherText,
})

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Description

Exports the full private keys from the MPC system. This requires authentication using one of your backup methods.
WARNING: This operation exposes your full private keys. Once ejected, the security guarantees of MPC are lost. Use with extreme caution.

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Parameters

ParameterTypeRequiredDescription
methodPortalBackupMethodYesThe backup method to use for authentication
passwordStringNoRequired when using PortalBackupMethod.password
cipherTextStringNoFor self-managed backups

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Returns

Map<String, String> - A map of namespace to private key:
KeyDescription
eip155The Ethereum/EVM private key
solanaThe Solana private key

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Example

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

// Eject with password
final privateKeys = await portal.ejectPrivateKeys(
  method: PortalBackupMethod.password,
  password: 'user-password',
);

print('EVM private key: ${privateKeys['eip155']}');
print('Solana private key: ${privateKeys['solana']}');

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With Other Methods

// With passkey
await portal.configurePasskeyStorage(
  relyingPartyId: 'portalhq.io',
  relyingPartyOrigins: ['https://portalhq.io'],
);
final keys = await portal.ejectPrivateKeys(
  method: PortalBackupMethod.passkey,
);

// With Google Drive
await portal.configureGoogleStorage(clientId: 'your-client-id');
final keys = await portal.ejectPrivateKeys(
  method: PortalBackupMethod.googleDrive,
);

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Errors

CodeDescription
NOT_INITIALIZEDPortal was not initialized
EJECT_FAILEDThe eject operation failed
INVALID_PASSWORDThe provided password is incorrect
AUTHENTICATION_FAILEDFailed to authenticate with backup method