Secure Multiparty Computation (MPC) for Digital Asset Custody Wallets

in #mpc3 years ago

Secure custody of digital assets is an ongoing concern for crypto users everywhere.
Recent high-profile hacks, resulting in hundreds of millions of dollars of losses, have shaken the crypto world. Executives in police custody, withdrawals halted. These events are a calling for cryptocurrency exchanges to strengthen security measures.

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In an ideal-world, secure storage of the private key would be assured using existing security technologies and operational practices. Unfortunately, we live in the real-world, where good people make innocent operational mistakes, where bad actors or compromised parties make unfortunate choices, and where security systems inevitably become compromised. This is particularly true when the rewards justify the persistent focus of skilled hacking resources. This is where secure MPC is required.

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Hot Wallet


Hot wallets pose considerable risk. Traders must implicitly trust the exchange to safeguard their assets from external, and internal, threats. Unregulated exchanges provide few assurances around the security and integrity of their platform and staff.
Ask yourself these basic questions

  • Is your exchange regulated?
  • Does it have a physical address? Do you know where it operates from?
  • Do you know who is operating the exchange, and does it suffer from key-man risk?
  • Does your exchange make it clear how customer assets are stored?

Encryption is easy. Key management is hard.


Private keys and Public keys are the foundation of every blockchain network. If you want to send cryptocurrency within your wallet to another wallet, you will need your private key. Exposing private keys is fraught with risk:

  • The Private Key is stolen by a Villain or insider, granting unlimited access to funds in the wallet.
  • The Private Key is misused by a Villain or insider in ways not intended by the owner of the digital assets.
  • The Private Key is lost, or the key holder is detained. Funds in the wallet are lost, forever.
    Blockchain transactions are considered immutable and irreversible. There are no do-overs.

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Keeping your funds safe with Qredo MPC Technology



In MPC, multiple parties participate in mathematical computations, but the details among them are never revealed to each other. MPC is also referred to as keyless technology: if the private key is never revealed then it cannot be stolen. A single private key is replaced by a distributed MPC key which consists of encrypted shards that are never reconstructed.

By replacing cumbersome private key management with MPC, Qredo makes digital assets immediately accessible, without compromising security. This allows users to enjoy the full benefit of digital assets as programmable money, and broadcast transactions instantly without fear of loss.
Qredo network transforms a simple custody solution into a blockchain-agnostic scaling mechanism—enabling digital asset managers to leapfrog the settlement delays, privacy issues, and security loopholes that arise from the centralized management of private keys.

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Qredo solves problems

  • Instant settlement
  • Unprecedented security
  • Clear transaction records
  • Privacy
  • Flexible governance
  • Maintain senior claims

Our MPC-based wallets have undergone rigorous internal risk assessments as well as external and internal penetration tests in order to evidence their high level of security. As Qredo leverage state-of-the-art MPC technology, the private key does not belong to a single entity. Nobody has access to the reconstructed private key, including the employees & executives of Qredo , hence it is not available for a hacker to steal.

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Functions of Qredo

Controlled decentralized asset custody

  • Self-managed and 3rd party hosting
  • Company authorization and decentralized control
  • Multi-asset fund management
  • DeFi Control Panel

Decentralized RFQ system analyzed and credit facilities

  • Cross-chain atom swap
  • Instant transfer
  • Automatic net worth settlement
  • Chat with P2P / P2Pool traders
  • Liquidity pool access
  • Cross Chain DEX Connection

Rules of Decentralization

  • Automated and customizable reports
  • Store immutable records of transactions and messages
  • Auditing, Verification and Insurance

QREDO TEAM

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What Makes QREDO Secure MPC The Preferred Custody Wallet Technology?

Smaller, More Efficient, Lower Cost Transactions: The single signature nature of threshold signatures using secure MPC result in the smallest transaction size, which results in more transactions per block and lower mining and gas fees.
Quantum Safe: key material is effectively encrypted, because it is broken up and distributed across parties (secret shared) during the computation, which makes it safe against single-server quantum attacks.
Sustained Secure Operations, Even With Corrupted Parties: Unlike alternative multiparty approval schemes, secure MPC can continue to operate and execute legitimate, approved transactions, even when one or possibly more parties becomes corrupted. Other schemes either stop protecting or stop operations entirely in those conditions

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Author:
Telegram: @kuahondifi

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