https://github.com/hazae41/asn1

Zero-copy ASN.1 and DER coding 🏎️
https://github.com/hazae41/asn1

asn1 browser decoding der encoding esmodules javascript nodejs parser typescript unit-testing zero-copy

Last synced: 3 months ago
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Zero-copy ASN.1 and DER coding 🏎️

• Host: GitHub
• URL: https://github.com/hazae41/asn1
• Owner: hazae41
• Created: 2022-12-04T19:45:47.000Z (about 2 years ago)
• Default Branch: master
• Last Pushed: 2024-09-01T06:13:28.000Z (4 months ago)
• Last Synced: 2024-10-07T21:31:01.667Z (3 months ago)
• Topics: asn1, browser, decoding, der, encoding, esmodules, javascript, nodejs, parser, typescript, unit-testing, zero-copy
• Language: TypeScript
• Homepage:
• Size: 825 KB
• Stars: 2
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml

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README

        






```bash

npm i @hazae41/asn1

```

[**Node Package 📦**](https://www.npmjs.com/package/@hazae41/asn1)

## 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](https://github.com/sponsors/hazae41)

- More string types

- More encodings

## Usage

```typescript

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])

```