Viewing File: /home/ubuntu/route-and-root-frontend-base/node_modules/eth-lib/src/passphrase.js

const Hash = require("./hash");
const Bytes = require("./bytes");
const Desubits = require("./desubits");

// Bytes -> Bytes
const bytesAddChecksum = (bytes) => {
  const hash = Hash.keccak256(bytes);
  const sum = Bytes.slice(0, 1, hash);
  return Bytes.concat(bytes, sum);
};

// Bytes -> Bool
const bytesChecksum = (bytes) => {
  const length = Bytes.length(bytes);
  const prefix = Bytes.slice(0, length - 1, bytes);
  return bytesAddChecksum(prefix) === bytes;
};

// () ~> Passphrase
const create = () => {
  const bytes = bytesAddChecksum(Bytes.random(11));
  const seed = Desubits.fromBytes(bytes);
  const passphrase = seed.replace(/([a-z]{8})/g, "$1 ");
  return passphrase;
};

// Passphrase -> Bytes
const toBytes = (passphrase) => {
  const seed = passphrase.replace(/ /g, "");
  const bytes = Desubits.toBytes(passphrase);
  return bytes;
};

// Passphrase -> Bool
const checksum = (passphrase) =>
  bytesChecksum(toBytes(passphrase));

// Passphrase -> Bytes
const toMasterKey = (passphrase) => {
  let hash = Hash.keccak256;
  let bytes = toBytes(passphrase);
  for (let i = 0, l = Math.pow(2,12); i < l; ++i)
    bytes = hash(bytes);
  return bytes;
}

module.exports = {
  create,
  checksum,
  toMasterKey
}