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Multi-Signature Wallets and TEE Protocol

Multi-Signature Wallets

  • Definition: Multi-signature (multi-sig) wallets require multiple authorized signatories to approve any transaction or withdrawal. This ensures that no single entity has complete control over the vault.

  • Key Features:

    1. Decentralized Control: Spreads control across multiple parties to minimize single points of failure.

    2. Enhanced Security: Even if one signatory’s keys are compromised, funds remain secure as additional approvals are required.

Trusted Execution Environment (TEE) Protocol

  • Purpose: Ensures private keys for multi-signature wallets are never fully assembled or accessible by a single party.

  • How It Works:

    1. Key Fragmentation: Private keys are split into fragments and stored securely across multiple nodes.

    2. Execution: When a transaction is initiated, the TEE protocol facilitates the necessary signatures without exposing or combining the keys.

    3. Bad Actor Assumption: The system operates under the assumption that any party could be compromised, ensuring robust fail-safes.

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Benefits of This Approach

  1. Minimized Risk:

    • Prevents unauthorized access, even in the case of partial system compromise.

  2. Transparency:

    • All transactions requiring multi-signature approvals are recorded on-chain for verification.

  3. Trust:

    • By decentralizing key control and securing them with TEE, Zipper ensures maximum reliability for users.