Create a wallet

The first step to the MPC process is generating key shares, or a wallet, for your users.

In the MPC wallet generation process, two sets of key shares are generated. The signing key shares are used for signing transactions, and the backup key shares are used for recovery if the device storing a signing key shares is lost.

The portal.createWallet command initiates the MPC process to create a set of shares for each curve we support (for example, Ethereum uses curve SECP256K1 and Solana uses curve ED25519). The users' shares are automatically stored in the user's secure phone storage using your configured mobile storage adapter.

CreateWallet.tsx

import React, { useState } from 'react'
import { Button, Text, View } from 'react-native';
import { usePortal } from '@portal-hq/core'


const CreateWallet = () => {
  const portal = usePortal()
  const [eip155Address, setEip155Address] = useState<string>('')
  const [solanaAddress, setSolanaAddress] = useState<string>('')
  
  const handleCreateWallet = async () => {
    // Create the user's wallet.
    const addresses = await portal.createWallet()
    setEip155Address(addresses.eip155)
    setSolanaAddress(addresses.solana)
  }

  return (
    <View>
      <Button onPress={handleCreateWallet} title="Create Your Wallet" />
      <Text>ETH Address: {eip155Address}</Text>
      <Text>SOL Address: {solanaAddress}</Text>
    </View>
  )
}

export default CreateWallet

Be sure to use a Production API key when creating clients for production. Read more details about going to production here.

Choosing an Implementation

Now that you've generated a wallet, it's time to choose a Portal implementation for your app!

We provide ready-to-use components that are able to be plugged in to your mobile app.

We also provide the functions that power those components for you to build your own experience powered by Portal.

WARNING: To create a wallet with the Portal SDK, your device must be configured to use passcode authentication. If you change your passcode, your Portal wallet will continue to operate as expected. However, if you disable passcode authentication after running the createWallet function, you will be required to execute the recover function before you can continue using your Portal wallet.

Next Steps

Choose either the components or native implementation as the next step!