argon2-wasm-edge

About

This library is heavily inspired by hash-wasm.
It only includes the Argon2 algorithm and can run on Vercel Edge functions and Cloudflare Workers.

Hashing passwords with Argon2

$3

hasingParams.ts

The recommended process for choosing the parameters can be found here.

``typescript
export default {
parallelism: 1,
iterations: 256,
memorySize: 512, // use 512KB memory
hashLength: 32, // output size = 32 bytes
outputType: 'encoded', // return standard encoded string containing parameters needed to verify the key
};
`

$3

`javascript
import params from './hasingParams';
import { argon2id, argon2Verify } from 'argon2-wasm-edge';


async function run() {
// salt is a buffer containing random bytes
const salt = new Uint8Array(16);
window.crypto.getRandomValues(salt);

const key = await argon2id({ ...params, password: 'pass', salt });

console.log('Derived key:', key);

const isValid = await argon2Verify({
password: 'pass',
hash: key,
});

console.log(isValid ? 'Valid password' : 'Invalid password');
}

run();
`

$3

api/hash-password.ts

`typescript
import params from './hasingParams';

import { argon2id, setWASMModules } from 'argon2-wasm-edge';
// @ts-expect-error
import argon2WASM from 'argon2-wasm-edge/wasm/argon2.wasm?module';
// @ts-expect-error
import blake2bWASM from 'argon2-wasm-edge/wasm/blake2b.wasm?module';

setWASMModules({ argon2WASM, blake2bWASM });

export const config = { runtime: 'edge' };

export default async function handler(req: Request) {
const password = new URL(req.url).searchParams.get('password');
if (!password) throw new Error('Missing password, try /api/hash-password?password=verysecure');
const salt = new Uint8Array(16);
crypto.getRandomValues(salt);
const hashedPassword = await argon2id({ ...params, password, salt });
return new Response(${password} => ${hashedPassword});
}
`

$3

worker.ts

`typescript
import params from './hasingParams';

import { argon2id, setWASMModules } from 'argon2-wasm-edge';
// @ts-expect-error
import argon2WASM from 'argon2-wasm-edge/wasm/argon2.wasm'; // <-- imports of wasm modules works differently in CF
// @ts-expect-error
import blake2bWASM from 'argon2-wasm-edge/wasm/blake2b.wasm';

setWASMModules({ argon2WASM, blake2bWASM });

async function fetch(req: Request) {
const password = new URL(req.url).searchParams.get('password');
if (!password) throw new Error('Missing password, try /api/hash-password?password=verysecure');
const salt = new Uint8Array(16);
crypto.getRandomValues(salt);
const hashedPassword = await argon2id({ ...params, password, salt });
return new Response(${password} => ${hashedPassword});
}

export default { fetch }
``