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Stealth-7702 Scripts

This guide details the manual steps to interact with the Stealth-7702 project using CLI tools. The process uses the stealthereum tool, which can be found here.

Setup

Install Dependencies

bun install

Run Scripts

bun run index.ts

Environment Setup

  • Clone .env.example and add your private keys before proceeding.

Steps

1. Generate Keypair

a. Use cast to generate a new keypair:

cast wallet new

This generates:

  • Spending Key
  • Viewing Key

b. Generate the stealth meta address:

stealthereum get-meta-address -s SPENDING_KEY -v VIEWING_KEY

Example Output:

Stealth Meta Address: 0x02befc9141b10ae4acc8c47492e8cd8dbb658550d577363b6cb916d1d2746554f302befc9141b10ae4acc8c47492e8cd8dbb658550d577363b6cb916d1d2746554f3

c. (Optional) Register the meta address in the registry:

cast send 0x6538E6bf4B0eBd30A8Ea093027Ac2422ce5d6538 \
"registerKeys(uint256 schemeId, bytes calldata stealthMetaAddress)" \
"(0,STEALTH_META_ADDRESS)" \
--private-key PRIVATE_KEY \
--rpc-url https://odyssey.ithaca.xyz

2. Generate a Stealth Address

a. Generate a new stealth address from your stealth meta address:

stealthereum stealth-address -r STEALTH_META_ADDRESS

Example Output:

schemeId: 0
stealth_address: 0xf1207c2974649fbe782e2c94111df142c3708312
ephemeral_pubkey: 0x027f130cc5ed1bd1e6bc06ea7b6c83c7ec1207bebdc0de23ffec533fb0fcb09769
view_tag: 153

b. Announce the stealth address:

cast send 0x55649E01B5Df198D18D95b5cc5051630cfD45564 \
"announce(uint256 schemeId, address stealthAddress, bytes memory ephemeralPubKey, bytes memory metadata)" \
"(0,STEALTH_ADDRESS,EPHEMERAL_PUBKEY,0x99)" \
--private-key PRIVATE_KEY \
--rpc-url https://odyssey.ithaca.xyz

3. Send Funds

Transfer funds to the stealth address:

cast send STEALTH_ADDRESS \
--value 0.001ether \
--private-key PRIVATE_KEY \
--rpc-url https://odyssey.ithaca.xyz

4. Reveal Stealth Private Key

Reveal the stealth private key if the stealth address matches:

stealthereum reveal-stealth-key-no-file \
--spendingkey SPENDING_KEY \
--viewingkey VIEWING_KEY \
--stealthaddr STEALTH_ADDRESS \
--ephemeralpub EPHEMERAL_PUBKEY

Example Output:

stealth_priv_key: [REDACTED]

5. Upgrade to Kernel Smart Account

a. Authorize the stealth address to upgrade to a kernel smart account:

bun run src/7702/1_authorize.ts

b. Initialize the smart account in the same transaction.

6. Transact from Kernel Smart Account

Use the upgraded smart account for transactions. Execute the script:

bun run src/7702/2_send.ts

This demonstrates:

  • Gas sponsorship through the Pimlico Paymaster.
  • Compatibility with ERC-4337 infrastructure.

7. Automate the Process

Run the index.ts script for an end-to-end demonstration:

bun run index.ts

Additional Notes

  • Testnet: Odyssey (EIP-7702 compatible).
  • Refer to the stealthereum CLI for more information.