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Cobo MPC Co-Managed Custody
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  • Cobo MPC Co-Managed Custody
    • MPC-TSS Technology
    • Quick Start Guide
      • Cobo Custody
        • Manage Account
          • Team (Only Visible to Admins)
          • Me (Team Members)
      • TSS Node Deployment
      • MPC Wallet Management on Cobo Custody Web
    • Web User Guide
      • Add TSS Node
      • Create MPC Wallet(s)
        • Send / Receive Wallet
          • Manage Coins
          • Create and Manage Wallet Addresses
          • Export Addresses
          • View Transactions
          • Configure Risk Control Policies
          • Manage API
          • Manage API Callbacks
          • Manage Settings
        • Web3 Wallet
          • Create and Manage Wallet Addresses
          • View NFTs
          • Access DApps
            • Cobo Connect
            • MetaMask Institutional
          • View Transactions
          • Manage Coins
          • Configure Risk Control Policies
          • Manage API
          • Manage API Callbacks
          • Manage Settings
    • TSS Node User Guide
      • Network Requirements
      • Server Environment Preparation
        • SGX-Ready Server
        • Off-The-Shelf Server
        • Apple MacBook
      • TSS Node Deployment
        • TSS Node Package
        • TSS Node Initialization
        • TSS Node Startup
        • TSS Node on Cobo Custody Web & MPC Root Extended Public Key Derivation
      • TSS Node Callback
        • TSS Node Callback Mechanism
        • Callback Server Requirements
          • Callback Server Examples
        • Callback Server Configuration
        • TSS Node Configuration & Callback Server Startup
      • TSS Node Update
      • TSS Node Release Notes
      • Appendix
        • TSS Node Configuration Methods
        • TSS Node Command Lines
        • TSS Node Risk Control
    • MPC Key Share User Guide
      • MPC Key Share Management
        • Backup
        • Restore
      • Disaster Recovery
        • Soft Key Recovery
        • Hard Key Recovery
        • Third Party Key Recovery
    • Supported Tokens and Chains
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  • Use Case
  • Requirements
  • Steps
  1. Cobo MPC Co-Managed Custody
  2. MPC Key Share User Guide
  3. Disaster Recovery

Soft Key Recovery

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Last updated 1 year ago

Use Case

If the MPC key share managed by you (i.e. the client) is lost, corrupted or compromised, you are advised to initiate soft key recovery at the earliest possible time with the assistance of Cobo and your entrusted third party. A soft key recovery will generate a new set of three MPC key shares. The MPC root extended public key and your wallet/asset information will remain the same.

Requirements

Your entrusted third party must have one TSS Node, which stores a MPC key share, that is active and has been configured on Cobo Custody Web.

Steps

  • Refer to “” section in “” to deploy and start up a new TSS Node

  • Inform your entrusted third party to bring its TSS Node online and confirm each other’s Node ID

  • Update the Node ID of your TSS Node on Cobo Custody Web; please refer to “” for more information

  • Make sure that the MPC root extended public key on Cobo Custody Web is the same 1) as the one you've noted down prior and 2) the one displayed in the TSS Node log

  • Execute the following command to verify that the database file contains the new group information and the old MPC root extended public key 

./tss-node.sh info group

  • Properly back up all associated data and keep them secure after the new set of three MPC key shares are generated

TSS Node Deployment
TSS Node User Guide
Web User Guide