xrpwallet.js

const codec = require('xrpl-tagged-address-codec')
const keypairs = require('ripple-keypairs')
const isSubprocess = typeof process.send !== 'undefined'
const lookFor = process.argv.slice(2).map(f => { 
  return f.toLowerCase().replace(/[^a-zA-Z0-9]/g, '') 
})

if (!isSubprocess) {
  console.log('\x1b[36m%s\x1b[0m', 'XRP Vanity Wallet Generator')
  console.log('\x1b[36m%s\x1b[0m', '   by @WietseWind (Twitter) /u/pepperew (Reddit)')
  console.log()
}

const run = (id, match) => {
  const re = '^(X.)(' + match.join('|') + ')(.+)$|^(X.+)(' + match.join('|') + ')$'
  const regexp = new RegExp(re, 'i')

  if (match.length > 0) {
    if (!isSubprocess) {
      console.log('Looking for wallet addresses with keywords at the start/end:')
      match.forEach(function (k) {
        console.log('   - ', k)
      })
      console.log(' ')
      console.log('For the geeks: testing regular expression: ')
      console.log('  ', re)
      console.log()
      console.log('\x1b[33m%s\x1b[0m', '-- Press Control C to quit --');
      console.log()
    }

    for (let i = 0;;i++) {
      const seed = keypairs.generateSeed()
      const keypair = keypairs.deriveKeypair(seed)
      const address = keypairs.deriveAddress(keypair.publicKey)
      const account = {
        address: address,
        xaddress: codec.Encode({account:address}),
        secret: seed
      }
      const test = regexp.exec(account.xaddress)
      if (test) {
        const matchedAddress = test[1] === undefined
          ? test[4] + '\x1b[32m' + test[5] + '\x1b[0m'
          : test[1] + '\x1b[32m' + test[2] + '\x1b[0m' + test[3]

        if (!isSubprocess) {
          process.stdout.write("\n")
          console.log(` > Match: [ ${matchedAddress} (${account.address}) ] with secret [ ${account.secret} ]`)
        } else {
          process.send({ 
            match: {
              xaddress: matchedAddress,
              address: account.address,
              secret: account.secret
            },
            child: id,
            pid: process.pid
          })
        }
      } else {
        if (!isSubprocess) {
          if (i % 100 === 0) process.stdout.write('.')
          if (i % 1000 === 0) process.stdout.write("\r" + i + ' ')
        } else {
          if (i % 100 === 0) process.send({ counter: 100, child: id, pid: process.pid })
        }
      }
    }
  } else {
    console.log('Please enter one or more keywords after the script to search for.')
    console.log('Eg. "node ' + process.argv[1] + ' johndoe mywallet pepper"')
    console.log('')
    process.exit(0)
  }
}

if (!isSubprocess) {
  run(null, lookFor)
} else {
  process.on('message', msg => {
    run(msg.id, msg.lookFor)
  })
}