Create your first Lockbox
Step-by-step guide to creating your first secure Lockbox
Creating a Lockbox is your first step toward securing cryptocurrency and NFT assets with Lockx's dual-key security system. This guide walks you through the process, from connecting your wallet to managing your secured assets.
Your Lockbox will be minted as a soulbound NFT permanently linked to your wallet address, ensuring only you can access your secured assets.
Connect your wallet
Begin by connecting your Web3 wallet to the Lockx platform. We support all major wallet providers including MetaMask, Coinbase Wallet, Brave Wallet, and WalletConnect-compatible wallets. Click the "Connect Wallet" button to open the wallet selection modal.
Connect Wallet
Select your preferred wallet provider and follow the authentication prompts. Once connected, you'll be automatically redirected to your portfolio where you can view all available assets.
Navigate to your portfolio
After connecting your wallet, you'll see your portfolio including all ERC-20 tokens, ERC-721 NFTs, and native ETH holdings. This dashboard shows your assets available for securing in a Lockbox.
Select assets to deposit
Choose the assets you want to secure by either clicking the "Create Lockbox" CTA button at the top to enter selection mode, or by clicking directly on individual assets. You can select any combination of tokens and NFTs based on your security needs.
Consider grouping related assets together or separating high-value holdings. You can create multiple Lockboxes with different asset combinations for enhanced organization and security.
Review selection and proceed to payment
Review your selected assets and proceed to the payment configuration page where you can specify the exact amounts to secure and choose your preferred key management approach.
Choose key management type
Lockx offers two distinct key management approaches:
Lockx Key Fraction (0.004 ETH)
Automated key management using cryptographic key fraction technology. Keys are generated from your wallet signatures combined with encrypted server-side components.
- • 2FA-protected operations
- • No manual key management
- • Enhanced user experience
Self Custody (0.002 ETH)
Complete control over your signing keys. You provide and manage your own private keys for maximum security and independence.
- • Full key control
- • Manual signing required
- • Technical expertise needed
For detailed comparisons, read more about Key Fraction Technology and Self Custody Keys. If you choose Self Custody, you'll be able to input your own private key as shown below.
Select payment method
We accept payment in ETH (cryptocurrency) or PayPal. Select your preferred payment method and complete the transaction to begin the Lockbox creation process.
Payment confirmation
After successful payment, you can immediately create your Lockbox or return later when gas fees are more favorable. Payment detection is automated, and the creation process will be available whenever you're ready to proceed.
Begin action flow
Click "Create Lockbox" to begin the secure creation process. The system will guide you through each step, ensuring all cryptographic operations are completed correctly and securely.
Create Lockbox signing key
For Lockx Key Fraction users, the system generates your signing key by combining your wallet signature with encrypted key fractions.
Note: If you selected Self Custody, this step will be skipped since you provided your own signing key during the setup process.
Set approval for contracts and mint Lockbox
Steps 3 and 4 in the modal handle two critical operations: setting token approvals (if applicable for ERC-20 and ERC-721 assets) and minting your Lockbox NFT.
Note: Approvals are only required for ERC-20 tokens and ERC-721 NFTs. Native ETH transfers don't require separate approval transactions.
Validate parameters with your wallet provider
Your wallet will prompt you to review and approve the Lockbox creation transactions. Carefully verify all transaction details including gas fees, recipient addresses, and asset amounts before confirming. These MetaMask previews show the typical approval flow.
Success! Your Lockbox is created
Your Lockbox has been created and your assets are now secured. You can now set up 2FA for additional security (recommended for Key Fraction users) or proceed directly to your Lockbox management interface.
From here, you can manage your secured assets, perform swaps, add more assets, or withdraw funds as needed. Your Lockbox provides a secure environment for all cryptocurrency operations.
Your Lockbox dashboard
Your Lockbox dashboard provides visibility and control over your secured assets. From here, you can monitor balances, perform swaps, add new assets, or withdraw funds when needed.
Explore our additional tutorials to learn about swapping secured assets and withdrawing from your Lockbox.
Important security considerations
Soulbound NFT properties
Your Lockbox exists as a soulbound (non-transferable) NFT permanently linked to your wallet address. This ensures that even if your wallet is compromised, attackers cannot transfer your Lockbox to addresses they control.
The soulbound property is enforced at the smart contract level and cannot be bypassed, providing fundamental protection against theft attempts.
EIP-712 structured signing
Subsequent Lockx operations like swapping or withdrawals use EIP-712 structured data signing that displays human-readable transaction information. This transparency prevents signature phishing attacks by making it impossible to hide malicious operations in cryptic hexadecimal data.
Always verify that transaction details match your intended operation before signing. Structured signing ensures you can clearly see what assets are being moved and where they're going.
Key fraction security model
For Key Fraction users, complete private keys never exist in persistent storage anywhere in the system. Keys are reconstructed temporarily during operations using your wallet signatures combined with encrypted server-side components.
This dual-key system ensures that no single party can access your assets independently.
2FA requirements
Key Fraction users must maintain access to their 2FA device for all withdrawal operations. Our system never holds the complete 2FA secret due to our key fraction technology - if you lose your wallet or 2FA device, you will lose access since we cannot recreate it.
Keep your 2FA device secure and consider backup authenticator apps, as we don't have the complete secret stored to provide back to you.