JSPM

  • ESM via JSPM
  • ES Module Entrypoint
  • Export Map
  • Keywords
  • License
  • Repository URL
  • TypeScript Types
  • README
  • Created
  • Published
  • Downloads 160937
  • Score
    100M100P100Q14066F
  • License MIT

Contains parsers and serializers for ASN.1 (currently BER only)

Package Exports

  • @ldapjs/asn1
  • @ldapjs/asn1/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@ldapjs/asn1) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@ldapjs/asn1

@ldapjs/asn1 is a library for encoding and decoding ASN.1 datatypes in pure JS. Currently BER encoding is supported.

Decoding

The following reads an ASN.1 sequence with a boolean.

const { BerReader, BerTypes } = require('@ldapjs/asn1')
const reader = new BerReader(Buffer.from([0x30, 0x03, 0x01, 0x01, 0xff]))

reader.readSequence()
console.log('Sequence len: ' + reader.length)
if (reader.peek() === BerTypes.Boolean)
console.log(reader.readBoolean())

Encoding

The following generates the same payload as above.

const { BerWriter } = require('@ldapjs/asn1');
const writer = new BerWriter();

writer.startSequence();
writer.writeBoolean(true);
writer.endSequence();

console.log(writer.buffer);

Installation

npm install @ldapjs/asn1

Bugs

See https://github.com/ldapjs/asn1/issues.