kzg-wasm

KZG-WASM

This module implements a JS wrapper around a WASM compilation of the c-kzg-4844 C library built for use with EIP-4844.

This library is produced by building the original C code to WASM using the empscripten toolchain in this fork and branch of c-kzg-4844.

Usage

This module exposes a single export, an async function called initKzg which loads and compiles the WASM object and returns an object that exposes the API defined in the KZG type interface in @ethereum/util

To use with the @ethereumjs libraries, do the following:

import { initKzg } from 'kzg-wasm'
import { Common, Chain, Hardfork } from '@ethereumjs/common'
import { initKZG } from '@ethereumjs/util'

const main = async () => {
    const kzg = await initKzg()
    initKZG(kzg, '')
    const common = new Common({
        chain: Chain.Mainnet,
        hardfork: Hardfork.Cancun,
        customCrypto: { kzg: kzg },
    })
    console.log(common.customCrypto.kzg) // Should print the initialized KZG interface
}

main()