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  • Welcome
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    • Policy Engine
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  • API
    • API Manual
      • Creation
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      • Integrating the TON Chain via API
    • API Type
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    • Introduction
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  • FAQ
    • Wallet Management
      • What is a Non-Custodial Wallet?
      • Why Can't I See the Team Wallet?
      • Why Does BTC Have Different Address Formats?
      • Can I Create Multiple Addresses Within a Single Wallet?
      • Why Does the Shard Not Support Adding Tokens?
      • Why Can't My Wallet Data Load?
      • Why Is My MATIC Missing?
      • Why Can’t the Member See the Shard Import Entrance When I Try to Authorize a Shard?
    • Transaction Management
      • Why Do Multi-Signature Wallets Require All Parties to Be Online Simultaneously?
      • Why Can't I See the Signature Option in My Team Activity?
      • Why Is My Transaction Status Stuck at "Pending"?
      • Which Policy Executes First if Priorities Are Equal?
      • Why Does It Display 'Please Import the fragment First' When Sending a Transaction?
      • What Should I Do if My Wallet Receives Blacklisted USDT (Black U)?
      • Why Do Some Addresses Require Activation Fees?
      • Can Auto-Signing Continue When Cregis Is Closed?
      • What Are the Differences Between Advanced Mode and Standard Mode for Gas Fee Settings?
      • What is Tron Energy Mode?
      • Can I use the team account balance to pay for the gas fee?
      • Can I Authorize My Employees to Sign?
    • API Management
      • Can I Edit the Type After an API Project Is Created?
      • Why Can't I Find the Option to Create an Order Collection Project?
      • Will the System Stop Immediately After API Address Limits Are Reached?
      • Is It Possible to Initiate Withdrawal Requests Directly via API?
      • What Should I Do When an Abnormal Callback Occurs?
      • Why Does the API Return Unsupported Token When Integrating TON?
      • What should I do if users transfer funds to a stopped project's address?
      • What Should I Do if My Team Version Expires and API address Funds Cannot Be Collected?
      • Is There a Limit on the Number of Transactions Per Collection?
    • Team Account Management
      • Why Can’t My Team Account Be Upgraded?
      • How to Handle Shards When a Member Leaves the Team?
      • How to Disband a Team?
      • How to Invite Team Members?
      • Why Can't I Perform Actions After Editing Permissions?
      • How to Set Up an Approval Process?
      • Will My Team Stop Functioning If I Don’t Renew the Subscription After It Expires?
    • Account Security
      • What is MPC?
      • Is There a Risk of MPC Shards Being Stolen?
      • Where Are My Assets Stored When Using Cregis?
      • What is a TEE Environment?
      • How to Safely Handle a Lost Recovery Phrase?
      • How to Safely Handle Lost or Damaged Devices?
      • How to Enable and Disable Address Book Verification?
      • What is a Policy Engine?
      • What Should I Do If I Forget My Transaction Password?
    • Others
      • How Can I Reimport My Cregis Wallet?
      • Does Cregis Offer a Testing Environment?
      • How Long Does KYB/KYC Approval Take?
      • How to Troubleshoot Issues When Installing the Cregis Application?
      • Why Can’t I Access My Testing Environment?
      • How Can I Check My Cregis Version?
  • Terms and Conditions
    • Terms of Service
    • Personal Information Collection Statement
  • Cregis Support
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  • Advantages of MPC
  • Unique MPC Features in Cregis

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  1. FAQ
  2. Account Security

What is MPC?

MPC (Multi-Party Computation) is short for "secure multi-party computation." It allows two or more parties to jointly compute a result without revealing their individual inputs. For example, MPC enables a group of friends to calculate their average salary securely without disclosing their individual earnings.

In cryptocurrency wallets, MPC facilitates the creation of a secure key management system without a single point of failure. Multiple parties (e.g., remote servers and mobile devices) can collaboratively perform cryptographic functions such as key generation, transaction signing, and verification without exposing their private data. Crucially, MPC ensures that a complete private key is never created, split, or reconstructed during the process, making it superior to traditional single-key models.

By leveraging MPC, consumer-focused wallets and institutional services can design secure on-chain asset management systems, eliminating private key vulnerabilities. This offers a more secure self-custody option, preventing key theft (as there’s no single key to steal) and key loss (as each party can independently back up their encrypted inputs without compromising the system).

Advantages of MPC

  • Easy Recovery: Ensures asset access even in adverse scenarios.

  • No Single Point of Failure: Enhances security by eliminating central points of risk.

  • Full User Control: Users retain full control over their assets.

  • Broad Blockchain Compatibility: Unlike MultiSigs, which are not supported across all blockchains, MPC can be applied to many.

Unique MPC Features in Cregis

  1. Single-Signature Wallets:

    • Requires only one member for signing.

    • Cregis’ patented technology generates two shards: one stored on the user’s device and the other managed in Cregis’ cloud TEE (Trusted Execution Environment). Both shards must combine during signing, ensuring security. Even if one shard is compromised, it cannot be used independently, eliminating single-point risks and enabling keyless management.

  2. Multi-Signature Wallets:

    • Requires multiple members to complete a signature.

    • Shards are generated and managed across client devices, while Cregis’ cloud stores none of them.

    • Multiple devices collaborate using their respective shards for signing. Users can also customize conditions, such as specifying which members must approve and how many approvals are required for signing.

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Last updated 5 months ago

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