trusted-setups

Easily access KZG (EIP-4844) + PeerDAS (EIP-7594) / ETH trusted setups in JS.

Exports 5 files:

- small-kzg.js - 400KB KZG setup
- small-peerdas.js - ~800KB KZG+PeerDAS setup
- fast-kzg.js - fast ~800KB KZG setup for eth-signer
- fast-peerdas.js - fast 3.1MB KZG+PeerDAS setup for eth-signer
- trusted_setup.json, for c-kzg and others

Usage

> npm install @paulmillr/trusted-setups

The package is located in namespace for security / anti-squatting reasons.

We test against eth-signer,
kzg-wasm and
c-kzg.
Other libraries with similar API should also work.

``js import { trustedSetup } from '@paulmillr/trusted-setups/small-kzg.js'; // import { trustedSetup } from '@paulmillr/trusted-setups/small-peerdas.js'; // import { trustedSetup } from '@paulmillr/trusted-setups/fast-kzg.js'; // import { trustedSetup } from '@paulmillr/trusted-setups/fast-peerdas.js';

// Typed as: type trustedSetup = { g1_lagrange: string[]; g2_monomial: string[]; g1_monomial: string[]; }

// eth-signer import { KZG } from 'micro-eth-signer/kzg'; const kzg = new KZG(trustedSetup);

// kzg-wasm const strip0x = items => items.map((i) => i.substring(2)).join(''); const g1 = strip0x(trustedSetup.g1_lagrange); const g2 = strip0x(trustedSetup.g2_monomial); const opts = { n1: 4096, n2: 65, g1, g2 }; const kzg = await loadKZG(opts);

// c-kzg can't receive object, requires path const __dirname = dirname(fileURLToPath(import.meta.url)); ckzg.loadTrustedSetup(1, __dirname + '/trusted_setup.json');

trustedSetup.g1_lagrange.slice(0, 2) // [ // '0xa0413c0dcafec6dbc9f47d66785cf1e8c981044f7d13cfe3e4fcbb71b5408dfde6312493cb3c1d30516cb3ca88c03654', // '0x8b997fb25730d661918371bb41f2a6e899cac23f04fc5365800b75433c0a953250e15e7a98fb5ca5cc56a8cd34c20c57' // ] trustedSetup.g2_monomial.slice(0, 2) // [ // '0x93e02b6052719f607dacd3a088274f65596bd0d09920b61ab5da61bbdc7f5049334cf11213945d57e5ac7d055d042b7e024aa2b2f08f0a91260805272dc51051c6e47ad4fa403b02b4510b647ae3d1770bac0326a805bbefd48056c8c121bdb8', // '0xb5bfd7dd8cdeb128843bc287230af38926187075cbfbefa81009a2ce615ac53d2914e5870cb452d2afaaab24f3499f72185cbfee53492714734429b7b38608e23926c911cceceac9a36851477ba4c60b087041de621000edc98edada20c1def2' // ]`

`Verification`

npm install && npm run build will build files from trusted_setup.txt, which was copied from c-kzg-4844.

Its checksum is d39b9f2d047cc9dca2de58f264b6a09448ccd34db967881a6713eacacf0f26b7`.

License

MIT License