@docknetwork/crypto-utils

Lightweight crypto primitives shared by Dock SDK packages. The package provides Ed25519, secp256k1, and secp256r1 keypairs, signature and public-key value types, byte utilities, verification-method constants, and JWS helpers.

import {
  Ed25519Keypair,
  createJwsSigner,
  createRawSigner,
  joseSignatureToDER,
  signJWS,
} from '@docknetwork/crypto-utils';

const keypair = Ed25519Keypair.random();
const signer = createRawSigner(keypair);
const signature = await signer.sign({ data: new Uint8Array([1, 2, 3]) });
const jwsSigner = createJwsSigner(keypair);
const jws = await signJWS(jwsSigner, 'EdDSA', { detached: true, header: {} }, new Uint8Array([1, 2, 3]));

createRawSigner unwraps the SDK signature value returned by DockKeypair.sign. It intentionally preserves Dock's existing wire formats: 64-byte Ed25519 signatures and 65-byte r || s || recovery ECDSA signatures. It does not perform JOSE or IEEE P1363 conversion.

Use createJwsSigner with signJWS. It unwraps DockKeypair and DidKeypair signatures and converts Dock's 65-byte ECDSA representation to the 64-byte r || s representation required by JOSE. To verify that JOSE representation with a Dock ECDSA keypair, first convert it to DER with joseSignatureToDER.

Subpath exports are available at keypairs, types, utils, key-utils, and vc.

Environments

Node is the default target. Browser and React Native bundlers resolve @sd-jwt/crypto-nodejs to @sd-jwt/crypto-browser via this package's browser / react-native fields. Apps still need a Buffer polyfill where the runtime does not provide one.