message: Rename BaseCoin.prototype.deriveKeyWithSeed
  Summary: Renamed to deriveExtendedKey and added short function description
  Reviewers: bigly, thomas
  Subscribers: ben
diff: @@ -169,6 +169,12 @@ BaseCoin.prototype.toJSON = function() {
  return undefined;
  };
  +/**
  + * The cold wallet tool uses this function to derive an extended key that is based on the passed key and seed
  + * @param key
  + * @param seed
  + * @returns {{key: *, derivationPath: string}}
  + */
  BaseCoin.prototype.deriveKeyWithSeed = function({ key, seed }) {
  const derivationPathInput = bitcoin.crypto.hash256(`${seed}`).toString('hex');
  const derivationPathParts = [
  