Verifying attestation with a public key using OKP make the server package to crash

[Julien-Pires]

Describe the issue

When trying to verify an attestation, with the server library, using a credential having a public key using OKP, verifyOKP function crash with following error:

TypeError: Cannot read properties of undefined (reading 'fromBuffer')
    at verifyOKP (file:///home/node/app/node_modules/.pnpm/@simplewebauthn+server@13.1.1/node_modules/@simplewebauthn/server/esm/helpers/iso/isoCrypto/verifyOKP.js:36:25)

When reviewing the file verifyOKP.js, the error come from this line x: isoBase64URL.fromBuffer(x).

The issue is that the import path is not correct and is going one folder up too far.

Current import: import { isoBase64URL } from '../../index.js';
Correct import: import { isoBase64URL } from '../index.js';.

Reproduction Steps

1. Create a credential with a public key using OKP
2. Start an authentication workflow with the same credential
3. Verify the attestation with simplewebauthn/server

Expected behavior

Attestation verification succeed

SimpleWebAuthn Libraries

@simplewebauthn/[email protected]

[MasterKale]

Hello @Julien-Pires can you please provide a registration response that causes the problem? Ideally as a sample of how you're calling the registration verification method.