@yrneh_jang/asn1

Fork of @ldapjs/asn1 with Cloudflare Workers support.

Changes from upstream

• fs module is lazy-loaded inside the function body instead of at module load time, so the package works in Cloudflare Workers where fs is not available.

Installation

npm install @yrneh_jang/asn1

Usage

Decoding

const { BerReader, BerTypes } = require('@yrneh_jang/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

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

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

console.log(writer.buffer)

Cloudflare Workers

No additional configuration needed. Works out of the box with nodejs_compat compatibility flag.

# wrangler.toml
compatibility_flags = ["nodejs_compat"]

License

MIT