XRPL Account Generator (ED25519) with 78x 10-face Dice roll

gen.mjs

import accountlib from 'xrpl-accountlib'
import elliptic from 'elliptic'
import assert from 'assert'
const ec = new elliptic.eddsa('ed25519')

// Adapted from validator keypair dice tool by RichardAH
//   https://github.com/RichardAH/validator-keys-from-dice/blob/main/dice.js

// Random (BAD RANDOM! BAD BAD BAD RANDOM! DO NOT EVER USE THIS!! TESTING PURPOSES ONLY!)
const dicerolls = Array(78).fill().map(r => Math.floor(Math.random() * 10))

// const _dicerolls = [
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 10
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 30
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 50
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60
//   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 70
//   0, 0, 0, 0, 0, 0, 0, 0        // 78
// ]

assert(Math.log2(10) * dicerolls.length > 256, 'Invalid # of dice rolls, not satisfying 256 bits')

const bnumber = BigInt(dicerolls.join('')).toString(2).padStart(256, '0').slice(-256)
const bnumhex = BigInt(`0b${bnumber}`).toString(16).toUpperCase().padStart(64, '0').slice(-64)

const kp = ec.keyFromSecret(bnumhex)

const ecKeypair = {
  secret: 'ED' + Buffer.from(kp.getSecret()).toString('hex').toUpperCase(),
  public: 'ED' + Buffer.from(kp.getPublic()).toString('hex').toUpperCase(),
}

assert(ecKeypair.secret.slice(-64) === bnumhex, 'Secret key mismatch (pre accountlib)')

const account = accountlib.derive.privatekey(`ED${bnumhex}`)

assert(`ED${bnumhex}` === account.keypair.privateKey, 'Secret key mismatch (accountlib)')
assert(ecKeypair.public === account.keypair.publicKey, 'Public key derivation mismatch')

console.log(account.keypair.privateKey)
console.log(account.address)