Innovative Solution of Bitget Wallet: MPC Wallet to Solve Web3 Challenges

Many users considering entering Web3 face a common problem: the complexity of traditional wallets. Managing cryptocurrencies requires memorizing mnemonic phrases and securely storing private keys—these are significant hurdles for beginners. To address these issues, a new generation of wallets based on MPC (Multi-Party Computation) technology has emerged. Bitget Wallet, after implementing an account abstraction (AA) wallet on the Starknet mainnet in July 2025, has further evolved and released an advanced MPC wallet. This is not just a security tool but a solution that dramatically simplifies the entry point into the Web3 world.

Problems with Traditional Wallets and the Rise of MPC

Conventional EOA wallets have fundamental design issues. They require private keys to be stored in a single location, which always carries the risk of loss or leakage. Users must also be careful not to forget complex mnemonic phrases, which can diminish the user experience.

In contrast, MPC (Multi-Party Computation) technology disperses private keys across multiple locations. Multiple parties cooperate to generate and manage the keys, eliminating a single point of failure. As a result, an innovative user experience is achieved—no mnemonic needed—allowing simple, password-based control of assets.

Why Bitget Wallet’s MPC Wallet Offers Industry-Leading Security

While MPC wallets are gaining popularity, many services struggle to balance security and convenience. Some prioritize ease of setup at the expense of risk diversification. Others do not adopt large prime numbers resistant to quantum attacks, leaving future threats unaddressed.

Bitget Wallet’s MPC wallet takes a different approach. It implements a high-threshold signature scheme (TSS) protocol with the following features:

• Uses quantum-resistant large primes: During key generation, security against quantum attacks is implemented, taking about one minute to ensure top-level security.
• Distributed Key Generation (DKG) technology: Multiple parties cooperate to generate key shares, preventing the full private key from being exposed in one place.
• Partially Homomorphic Encryption and Distributed Collaborative Signing: Enables secure transaction signing without fully revealing the private key.

Additionally, Bitget Wallet’s MPC wallet includes a “Re-share” feature. When connecting a new device, the old device’s key share is automatically invalidated, eliminating risks of unauthorized access to unused devices.

It also supports independent trading password settings, ensuring that server-stored key shares do not participate in signing without explicit user permission.

Achieving Full User Control with Three Key Shares

The biggest feature of Bitget Wallet’s MPC wallet is its 2/3 signature mechanism, a sophisticated enterprise-grade system rarely seen in consumer wallets.

In this model, completing a digital signature requires any two of three key shares:

1. User’s device: Stores the first key share and participates in each transaction.
2. Platform server: Stores the second key share and participates in collaborative signing.
3. Cloud backup (iCloud or Google Drive): Stores the third key share, which is not used for signing but is utilized for wallet recovery and re-sharing.

This design ensures that both the user and the platform jointly control the private key, and neither can access funds independently. It embodies the ideal of a decentralized, secure MPC wallet.

A New Security Experience: Forget Key Management, Focus on Transactions

Bitget Wallet’s MPC wallet offers a user experience similar to Web2 services. Setting up a wallet only requires an email address and a payment password, eliminating the need to memorize complex mnemonic phrases.

This simplicity does not compromise security—in fact, it surpasses traditional wallets thanks to the distributed key generation, TSS, and re-share features, which provide industry-leading security.

From Setup to Recovery with the MPC Wallet

Wallet Creation

1. Open the Bitget Wallet app and select “Create New Wallet” > “MPC Wallet.”
2. Set and confirm a PIN code (existing users can use their previous PIN).
3. Register an email address (linked to the key share; choose a trusted address).
4. Verify via a confirmation code sent by email.
5. Set and confirm an 8-digit transaction password (critical for wallet recovery).
6. Enable Face ID if desired, then wait for key share generation (about 1 minute). Once complete, the home screen will display “MPC Wallet.”

Backup Process

Cloud backup can be completed in “1 minute”:

1. Select the backup option on the home screen.
2. Choose and authenticate with your cloud service (Google account, iCloud, etc.).
3. Once authenticated, the backup is successful, and you will receive a notification.

Wallet Recovery

If you reinstall Bitget Wallet or lose your device, you can restore from cloud backup. During this process, the old device’s key share is automatically invalidated:

1. Select “Import Wallet” > “MPC Wallet.”
2. Re-set your PIN and payment password, then enter your registered email.
3. Enter the email verification code and your previous payment password.
4. A new key share is generated, completing the recovery.
5. For security, it’s recommended to perform a backup after recovery.

Accelerating Web3 Adoption with the MPC Wallet

Bitget Wallet’s MPC wallet is more than just a technological innovation; it’s a solution to accelerate Web3 adoption. It frees users from complex mnemonic management, offers industry-leading security, and provides complete user control—creating a reliable foundation for both beginners and experienced users to confidently step into the Web3 world.

Moving forward, Bitget Wallet will continue to enhance MPC wallet features and user experience, delivering a safer, more trustworthy Web3 experience.

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