JSPM

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  • Published
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  • Score
    100M100P100Q79601F
  • License MIT

Zero-copy ASN.1 <=> DER encoding for the web

Package Exports

  • @hazae41/asn1

Readme

npm i @hazae41/asn1

Node Package 📦

Features

Current features

  • 100% TypeScript and ESM
  • No external dependency
  • Rust-like patterns
  • Zero-copy DER <=> ASN1 reading and writing
  • Almost all universal triplets
  • Implicit and explicit tagged types

Upcoming features

  • More string types
  • More encodings

Usage

import { DER } from "@hazae41/asn1"

const input = new Uint8Array([0x01, 0x01, 0xFF])

const triplet = DER.tryFromBytes(input).unwrap() // Boolean

console.log(triplet.toString()) // "BOOLEAN true"

const output = DER.tryToBytes(triplet).unwrap() // Uint8Array([0x01, 0x01, 0xFF])