The privacy Rollup service is online, taking you to experience the anonymous transfer of ETH on the Aztec network

Editor's Note: This article comes fromBabbitt Information (ID: bitcoin8btc)Editor's Note: This article comes from

Babbitt Information (ID: bitcoin8btc)

Babbitt Information (ID: bitcoin8btc)

In the early morning of March 16th, Beijing time, Aztec, the Ethereum privacy project that has received much attention, launched its rollup service (zk.money).

As of now, users can use the service to transfer ETH anonymously, while the anonymous transfer of ERC-20 tokens will not be available until the next few weeks (According to the announcement, Aztec will first add WBTC, BAT, AAVE and DAI, four major ERC-20 assets, all ERC-20 tokens will be supported in the future).

Note: The current Aztec is still a beta version in nature. In order to reduce risks, Aztec chooses to set an amount limit of 1 ETH for each account, and the transaction limit will be gradually increased later.

secondary title

What is the usage scenario of Aztec?

In January of this year, billionaire Mark Cuban (Mark Cuban) was picked up by netizens for his Ethereum address and DeFi financial transaction history because he shared an NFT work.

When we use the Ethereum network, we will leave a lot of traces, which can be found on the blockchain browser, and the real track of the address owner can be restored through analysis.

For example, Mark Cuban has been active on the Ethereum network since January this year, and his first transaction was to try the loan of DAI and WETH through the AAVE platform.

The first small attempts showed that he was still a newbie at the time, and after a few days, he deposited 1000 aWETH.

In fact, as long as Mark Cuban does any Ethereum DeFi or NFT operations, interested people will know immediately that this kind of privacy problem will indeed cause headaches for rich people, especially rich people as famous as him .

So is there any way to solve it?

ZK-ZK Rollup (or ZK² for short) developed by Aztec includes two or more layers of SNARKs:

The upper layer "ZK-SNARKs (Rollup SNARK) succinctly proves the correctness of the lower layer SNARK;

In other words, this solution not only solves the privacy problem, but also solves the scalability problem, while reducing transaction costs.

For a specific description of the scheme, see Babbitt's article: "Privacy Scheme ZK² Rollup: How to Realize High-speed, Cheap Privacy Transactions on Ethereum"

secondary title

Aztec tutorial

As mentioned above, currently users can use the Aztec network to perform anonymous ETH transfers. We only need to visit https://zk.money/, connect to our little fox wallet for testing, and then create a user name (for example, the author uses bob ).

After the creation is complete, click the "Shield" button to see the following page:

Enter deposit funds (the current maximum limit is 1 ETH), plus a fixed handling fee (0.00525 ETH), and you will see the following page after confirmation:

In general, the deposit operation will involve two fees, one is the fixed Aztec network consumption fee, and the other is the miner's fee for the miners, which is equivalent to about 19 US dollars during the test.

After the transaction is confirmed, we need to wait for about 2-4 hours to enter the account, and then we can transfer to another account of our own.

Note: Although the target address of the transfer can be filled in the Ethereum main network address, the fee will be very high. If it is the Aztec second-tier network, the handling fee is fixed at 0.004 ETH, which is currently about 7 US dollars.

After waiting for a period of time, this anonymous transfer will arrive, and the real source address of the transfer will not be displayed.