To demonstrate how Cobo Portal Mobile (hereinafter referred to as Portal Mobile) functions as a key share manager, this guide walks you through generating and backing up key shares from the perspective of a key share holder. After key shares are generated, holders can use Portal Mobile to back them up to iCloud, Google Drive, or export them as a local file. During backup, key shares are encrypted with a recovery passphrase that you set. Key share backups are useful in situations such as device loss or replacement.Documentation Index
Fetch the complete documentation index at: https://manuals.cobo.com/llms.txt
Use this file to discover all available pages before exploring further.
Generate your key shares
Multiple key shares jointly form a key. There are three types of keys: Main Key, Signing Key, and Recovery Key. Key shares can be generated in the following two ways.Method 1: Automatic generation during first-time setup
After you set up Portal Mobile for the first time and create your first organization, Portal Mobile automatically generates key shares for your first vault and creates the MPC Wallet โ no manual action required. For details, refer to Set up Cobo Portal Mobile.Method 2: Responding to an Admin-initiated generation request
Subsequent key share generation (for example, creating a new Main Key, Signing Key, or Recovery Key) is initiated by an Admin on Cobo Portal (web). The Admin designates organization members as key share holders, and the selected holders receive a notification in Portal Mobile.A selected holderโs device must already be bound to the Adminโs organization to be eligible for selection as a key share holder.
- After the Admin initiates key generation on Cobo Portal, you receive a โYou have a pending key share generation requestโ notice in the Approvals tab of Portal Mobile. Tap the notice.
- On the Group Information page, review the details of the key share generation request (organization, MPC vault, key group, threshold, and so on). Once confirmed, tap Start.
- Wait for all key share holders to come online and approve the request. Once all holders have approved, the key share generation process starts automatically.
- The process takes about 30 seconds. Do not close Portal Mobile during this time. When you see the Key Generated Successfully message, tap Back Up.
- You can tap Back Up to enter the backup flow, or tap Skip to back up later.
Back up your key shares
After your key shares are generated, follow the steps below to complete the backup.Step 1: Choose a backup method
On the Back up key shares page, choose where to store the backup. You can add other backup methods at any time later.- iCloud: The backup file is stored in your iCloud account (iOS devices).
- Google Drive: The backup file is stored in your Google Drive account.
- Local file: Export the backup file locally and keep it yourself.
Regardless of the method you choose, the next step requires you to create a recovery passphrase. This passphrase is required to decrypt the backup file and restore your key shares later.
Step 2: Confirm the backup notice
In the confirmation dialog, read and select the following confirmation items:- I will keep the backup file safe;
- I will remember the recovery passphrase.
Step 3: Set a recovery passphrase
Set a recovery passphrase used to encrypt your backup file. The recovery passphrase must meet the following requirements:- At least 16 characters;
- At least one uppercase letter;
- At least one number;
- At least one special character.
Step 4: Complete the backup
The backup is complete once you see the Backup Successful message.If you choose local file backup, Cobo cannot recover the local backup file for you. Be sure to store the backup file in a safe and accessible location.