Cryptowasm

An ultra-lightweight JavaScript library exposing several cryptographic primitives commonly used in cryptocurrency

Cryptowasm has no dependencies and works in all JavaScript environments, including Node.js, Deno (probably), and browsers.

Purpose

Cryptowasm is a stripped-down fork of libauth by the very skillful bitjson, only including Secp256k1, sha1, sha256, sha512, and Ripemd160. No other utility tools or bitcoin(cash)-specific feature sets.

Getting Started

To get started, install cryptowasm:

``sh
npm install cryptowasm
`

And import the functionality you need:

`typescript
import { instantiateSecp256k1 } from 'cryptowasm';
import { msgHash, pubkey, sig } from './somewhere';

(async () => {
const secp256k1 = await instantiateSecp256k1();
secp256k1.verifySignatureDERLowS(sig, pubkey, msgHash)
? console.log('🚀 Signature valid')
: console.log('❌ Signature invalid');
})();
``

Stable API

The following APIs are considered stable, and will only include breaking changes in major version upgrades.

$3

- instantiateSecp256k1
- Secp256k1 Interface

$3

- instantiateRipemd160
- Ripemd160 Interface
- instantiateSha1
- Sha1 Interface
- instantiateSha256
- Sha256 Interface
- instantiateSha512
- Sha512 Interface