Set up and use Parity to create and manage multi-signature Ethereum wallets, edit the wallet’s settings and view pending and past transactions
I recently set up a multi-sig Ethereum wallet and I couldn’t find clear instructions. Here they are, I hope these instructions are useful for someone looking to get started.
You’ll need a way to interact with the Ethereum blockchain in order to deploy a wallet. There are several apps that you can use. I’ve used Parity because I found it simple and quick.
Wallets are a type of contract and there are two types of wallet, the Multi-Sig wallet and the Watch wallet. An Ethereum account is required to communicate with a contract so if you want a multi-sig wallet with 3 signatories (for example) then you will need to have set up at least 1 of those 3 Ethereum accounts before creating the wallet.
From their website:
Integrated directly into your Web browser, Parity is the fastest and most secure way of interacting with the Ethereum network.
You can do a bunch of stuff with Parity including mining Ether, manage accounts, interact with different dapps, send/receive from different accounts, and set up contracts. On the accounts tab, you can quickly set up Multi-Signature wallets. If you use the Chrome plugin you will also get handy notifications when transactions are confirmed or contracts deployed.
For MacOS you can download and install Parity by visiting the Parity site and downloading the installer, or from the terminal using curl or Homebrew.
$ bash <(curl https://get.parity.io -kL)
Detailed instructions are here.
brew tap paritytech/paritytech brew install parity --stable
If you used the installer, then you open Parity opening the app and then using the logo in the menubar.
If you used Brew, then start Parity with the following command
and then go to the following address in your browser:
You should now see something similar to this:
Select the Accounts tab from the top of the page and then select “+ Account“. Either create new accounts or import them using your preferred method. You don’t need to import all the accounts that will be part of the multi-sig wallet, but you will need to import or create the account that will own the wallet you are about to create. This account will need to have a large enough Ether balance to pay the transaction costs to deploy the multi-sig wallet onto the Blockchain. The costs are tiny, but they are greater than zero.
Once you’ve either created or imported the account which will deploy the wallet, select “+ Wallet” from the accounts tab and choose “Multi-Sig wallet“. Click next.
Enter a name for the wallet, if you want you can add a local description.
The “From account” will be the contract owner and this account will
Click the “+” button under “Other wallet owners” to add the address of the other signatory accounts. You’ll need to add one line for each signatory and these accounts will also own the wallet once it is deployed.
In the “required owners” section, specify how many accounts will need to approve a transaction that is above the daily transaction limit.
Use the “wallet day limit” to set how much Ether can be spent by each account per day without needing another account to approve the transaction. Set an amount of 0 if you want all transactions to require approval, or turn the option off using the slider to the right (which just specifies a huge number).
Click “next” and you’ll be shown a pop-up window to approve the creation of the wallet. You will need to enter the password of the account which is creating the wallet, and once you click “Confirm request” the funds in the creators accounts will be used to deploy the contract on chain and create the multi-sig wallet.
Anyone can put funds into the wallet, just like a normal account. Just send Ether to the wallet’s address.
At the top of the page you click “Edit” to change the local name and description of the wallet.
“Settings” allows you add or remove owners (signatories) of the wallet and change the required number of approvals and the wallet day limit. If you change these settings then the changes will need to be executed on the blockchain and the account requesting the change will therefore need to pay the required funds. Depending on the settings being changed, other accounts will need to approve the changes before they are implemented.
“Forget” will remove the multi-sig wallet from your accounts tab.
Click on “Transfer” in the wallet management window (pictured above) to begin withdrawing funds from the wallet.
Select the token you want to transfer - Ethereum is the only default option.