calculate_address

calculate_address.ts

import { ethers } from "hardhat"

async function main() {
  const factoryAddress = '6b6960949B595b22548F4FBf3561Be459cA4F964'
  const bytecode = '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'
  const abi = new ethers.utils.AbiCoder()
  for (let salt = 123457; salt < 1000000000; salt += 1) {
    const addr = ethers.utils.keccak256(
      Buffer.from('ff' + 
      factoryAddress + 
      abi.encode(['uint256'],[salt]).slice(2).toString() + 
      ethers.utils.keccak256(Buffer.from(bytecode, 'hex')).slice(2).toString(), 'hex')
    ).slice(-40)
    if (addr.toLowerCase().indexOf('badc0de') >= 0) {
      console.log('Bang!!', addr, salt)
      return
    } else {
      console.log('QQ!', addr)
    }
  }
}
  
main()
  .then(() => console.log('Calculate address~'))
  .catch(console.error)