@panva/asn1.js/lib/asn1/base/index.js

ASN.1 encoder and decoder for Node.js with no dependencies (fork of asn1.js using native BigInt)

const { Reporter } = require('./reporter')
const { DecoderBuffer, EncoderBuffer } = require('./buffer')
const Node = require('./node')

module.exports = {
  DecoderBuffer,
  EncoderBuffer,
  Node,
  Reporter
}