74 lines
4.7 KiB
Markdown
74 lines
4.7 KiB
Markdown
# Fund & Withdraw on Nova
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Tornado Cash works by breaking the on-chain link between source & destination addresses. To do so, the protocol needs tokens to be deposited in a pool from one address, then to be withdrawn through another address.
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This principle remains the same for Tornado Cash Nova. As for traditional fixed amount pools, these two actions are core to the efficiency of the tool:
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* The “Funding” process,
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* The “Withdrawing” process.
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## Funding Process <a href="#funding-process" id="funding-process"></a>
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The great novelty compared to traditional Tornado Cash pools is that **deposited amounts are no longer predefined.** Users can choose a customized amount within the capacity of their wallet balance.
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Therefore, if you want to put 0.4 ETH in the pool, you can do it all at once rather than making four separate transactions with the traditional 0.1 ETH pool.
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### How Does It Work? <a href="#how-does-it-work" id="how-does-it-work"></a>
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#### **The First Deposit 💰**
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* The first step is to log in Tornado Cash Nova through a Metamask account.
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* Your account is not set yet (button `Set up account` available on the top right corner). To set up your account, you can either:
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* **Click on `Set up account`**: your logged-in address will be registered to Nova without needing to deposit any tokens. This action will enable you to receive transfers or deposits within the pool from any another address.
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* **Choose your logged-in address as a recepient address**: by depositing tokens into the pool, your account (with its shielded address & shielded key) will be automatically created. The deposited funds will come top up your shielded balance.
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* **Choose another registered address:** tokens will be added to the shielded balance of the chosen recipient address. This recipient address needs to be a shielded address that was formerly registered to the pool.
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When you log in, the `Recipient address` is filled by default with your logged-in address. You can change it depending on how you want to use the tool.
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If you set a new account, you will be able to log into the pool later, check your Tornado shielded balance or receive shielded transfers by using either your shielded address or shielded key.
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_All information about how to use these elements to log in or where to find your shielded key are available on_ [logging-in-tornado-cash-nova.md](logging-in-tornado-cash-nova.md "mention")_._
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#### **The following deposits 💸**
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The following deposits answer to the same rules that the first one, except that the account is already set.
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By logging into the pool with your shielded address / key, you can deposit your chosen amounts to your chosen shielded address as you wish to.
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⚠️ Since it is a beta version, deposits are currently limited to 1 ETH/transaction.\
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However, if the community wishes to increase this limit, the 1 ETH cap amount can always be changed through a governance proposal.
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## Withdrawing Process <a href="#withdrawing-process" id="withdrawing-process"></a>
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To withdraw funds from the Nova pool, you can either:
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* choose from a set of four predetermined amounts (0.1, 0.3, 0.5 & 1 ETH),
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* choose a completely customized amount by going through the button `Set custom`.
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### Custom Option For Withdrawal <a href="#custom-option-for-withdrawal" id="custom-option-for-withdrawal"></a>
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**The custom option should only be chosen with full knowledge of the following facts and in complete confidence in your actions.**
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To maintain your privacy, choosing one of the four suggested amounts is strongly recommended as it will allow your withdrawal to blend with the crowd.
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Indeed, ddepending on the chosen amount, a connection might be deduced between your initial fund transaction and your withdrawal if:
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* the initially funded amount & the withdrawn amount are exactly the same,
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* the funded & withdrawn amounts can be easily linked through a sum.
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_For instance, a deposit of 0.42 ETH can be linked to a withdrawal of exactly 0.42 ETH or two times 0.21 ETH, which might compromise anonymity. However, with a withdrawal of 0.391 ETH, privacy is better preserved as there is no obvious link between the 0.42 & 0.391 amounts._
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### Transctions through Gnosis Chain (L2) <a href="#transctions-through-gnosis-chain-l2" id="transctions-through-gnosis-chain-l2"></a>
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For cheaper transactions, Gnosis Chain (former xDAI Chain) is used as a Layer-2. To this end, a bridge is used between ETH from the Mainnet & WETH from Gnosis Chain.
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Therefore, to prevent spam attacks that will overload the bridge, the withdrawal amount has to be larger than 0.05 ETH.
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_Written by_ [_@ayefda_](https://torn.community/u/ayefda)__
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