vivianjeng / anon-transfer

Transfer X ETH with A account, withdraw Y ETH with B account.

Anonymous Token Transfer

This is a demo app of a UniRep application. Users of Anonymous Token Transfer can use the private address (called epoch key in UniRep) to receive tokens, and withdraw tokens with a different account. It doesn't require users to withdraw with the exact amount of the token when it is deposited.

Caution

This is an experimental project. Deposit ETH at your own risk. ⚠️

Try it now 👉🏻 https://anon-transfer.online/ 👈🏻

What is provided during withdrawal?

❌ User ID
❌ Wallet address
❌ Private address
✅ Zero Knowledge Proof

Demo video

1. Installation and build

yarn install && yarn build

2. Test

yarn contracts test

example output:

    ✔ deployment (4744ms)
    ✔ user sign up (1752ms)
sender of the transaction: 0x70997970C51812dc3A010C7d01b50e0d17dc79C8
transfer 100000 gwei to private address 20288634146029549172244665324006248272118782231594914681237696098918486538180
user 1 balance in gwei: 100000
-----------------------------------------------
sender of the transaction: 0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC
transfer 103000 gwei to private address 17142617488518961051962089813261229593445364448030237804264218253962973757715
user 1 balance in gwei: 203000
-----------------------------------------------
sender of the transaction: 0x90F79bf6EB2c4f870365E785982E1f101E93b906
transfer 106000 gwei to private address 14619432103516208923089255954492731338449294246264854550927251034400298738983
user 1 balance in gwei: 309000
-----------------------------------------------
    ✔ transfer (30540ms)
    ✔ user state transition (12265ms)
sender of the transaction: 0xBcd4042DE499D14e55001CcbB24a551F3b954096
withdraw amount 200000 gwei to wallet with address 0xed1c20A405efD526Ff8B76084B44e6D11c750820
Epoch 0 ended
user 1 balance in gwei: 109000n
    ✔ withdraw (10081ms)