bokkypoobah / magicalinternetmoney

Magical Internet Money - EVM chain crypto asset manager, with support for ERC-5564 Stealth Addresses and ERC-6538: Stealth Meta-Address Registry (WIP)

Magical Internet Money

An implementation of ERC-5564: Stealth Addresses and ERC-6538: Stealth Meta-Address Registry (using address instead of bytes).

Test it at https://bokkypoobah.github.io/MagicalInternetMoney/ (WIP) connected to the Ethereum Sepolia testnet.

How The ERC-5564: Stealth Addresses Protocol Works

• Alice wants to pay Bob in ETH/ERC-20/ERC-721 tokens
• Bob generates a Stealth Meta-Address and provides this to Alice
• Alice uses Bob's Stealth Meta-Address to compute a random Stealth Address that can be accessed only by Bob
• Alice transfers the tokens to this address and announces the transfers in the ERC-5564: Stealth Address Announcer contract
• Bob can access the private keys to their computed Stealth Addresses, using information included in the announcements
• The ERC-6538: Stealth Meta-Address Registry allows any account to publish their associated Stealth Meta-Addresses

How This Dapp Works

This dapp:

• Allows Bob's web3 attached account to generate a unique Stealth Meta-Address for each unique associated phrase
• Allows Alice to compute a random Stealth Address using Bob's Stealth Meta-Address
• Allows Alice to then execute the transfer to Bob's Stealth Address and announce the transfer to the Announcer
• Retrieve all event logs published to the Announcer
• Retrieves all event logs published to the Registry

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Sample Screens

Generate And Register New Stealth Meta-Address

Generate New Stealth Meta-Address - Initial Addresses

Click [+] from the Addresses menu to access the Stealth Meta-Address generation screen.

Generate New Stealth Meta-Address - Generate And Sign

Click [Generate] to generate a new Stealth Meta-Address, then sign the phrase with your web3 attached account.

Generate New Stealth Meta-Address - After Generation

Click [Add] to add your newly generated Stealth Meta-Address to your addresses.

Generate New Stealth Meta-Address - Add To Registry

Click [Add/Update] to add your newly generated Stealth Meta-Address to the Stealth Address Registry, then sign and send the web3 transaction.

Generate New Stealth Meta-Address - Addresses

Generate New Stealth Meta-Address - Sync

Click [Sync] to retrieve events from the blockchains.

Generate New Stealth Meta-Address - Registry

The newly registered Stealth Meta-Address.

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Stealth Transfer

Stealth Transfer - To Stealth Meta-Address In Registry

Click on the [>] button to send ETH/ERC-20/ERC-721 tokens to that Stealth Meta-Address.

Stealth Transfer - Specify Transfer Amount

Stealth Transfer - Send Transaction

Stealth Transfer - Sync

Stealth Transfer - New Stealth Transfer

Stealth Transfer - New Stealth Transfer Details

Stealth Transfer - Sign Message To View Private Key

Stealth Transfer - Private Key Entered In Web3 Wallet

0.000012345 ETH rounded to 0 in the web3 wallet.

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References

• ERC-5564: Stealth Addresses
• ERC-6538: Stealth Meta-Address Registry
• https://github.com/nerolation/stealth-wallet
  • https://stealth-wallet.xyz/
  • https://nerolation.github.io/stealth-utils/ from https://github.com/nerolation/stealth-utils
  • StealthTransactionHelper on Sepolia
• https://github.com/kassandraoftroy/erc5564-contracts
• An incomplete guide to stealth addresses
• ERC-5564 Stealth Addresses
• EIP-5564: Improving Privacy on Ethereum through Stealth Address Wallets
• Ethereum stealth addresses (ERC-5564) library
• https://github.com/paulmillr/noble-curves

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Deployments

• ERC5564Announcer.sol v0.8.1 on Sepolia 0xFe6335f5dc5a469e74fB6a9FDAe116bFD5346365
• ERC5564Registry.sol v0.8.1 on Sepolia 0x5F8ac9e3B2DD28cA2c9bc7A992Ce36c3C4929Cde
• MagicInternetMoney.sol v0.8.2 on Sepolia 0x5B84e1706CD6Ae0d79486Dd6F30503B4330742E1

Enjoy!

(c) BokkyPooBah / Bok Consulting Pty Ltd 2024. The MIT Licence.