@energyweb/vc-verification

VC Verification

Description

This package provides implementation for verification of Verifiable Credential and RoleEIP191JWT. The verification can be done for issuer or revoker authority, credential proof and revocation verificaiton. @energyweb/vc-verification is a typescript module.

{vc-verification} is a component of the Energy Web Decentralized Operating System

Usage

Issuer Verification

The IssuerVerification class can be used to verify issuers either with an RoleEIP191Jwt or a Verifiable Credential. The IssuerVerification verifies issuers authority, respective credential and revocation status.

import {
  CredentialResolver,
  IssuerResolver,
  RevokerResolver,
  VCIssuerVerification,
  ClaimIssuerVerification,
  EthersProviderIssuerResolver,
  EthersProviderRevokerResolver,
  IpfsCredentialResolver,
  RevocationVerification,
} from '@energyweb/vc-verification';
import { DidStore } from '@ew-did-registry/did-ipfs-store';
import { Resolver } from '@ew-did-registry/did-ethr-resolver';
import { DomainReader } from '@energyweb/credential-governance';
import { providers } from 'ethers';
import { RegistrySettings } from '@ew-did-registry/did-resolver-interface';
import { verifyCredential } from 'didkit-wasm-node';

(async () => {
  let provider: providers.provider;
  let issuerResolver: IssuerResolver = new EthersProviderIssuerResolver(
    DomainReader
  );
  let revokerResolver: RevokerResolver = new EthersProviderRevokerResolver(
    DomainReader
  );
  let credentialresolver: CredentialResolver = new IpfsCredentialResolver(
    DIDStore,
    Resolver
  );
  const revocationVerification = new RevocationVerification(
    revokerResolver,
    issuerResolver,
    credentialResolver,
    provider,
    registrySettings,
    verifyCredential
  );
  const issuerVerification = new IssuerVerification(
    issuerResolver,
    credentialResolver,
    provider,
    registrySettings,
    revocationVerification,
    verifyCredential
  );
  let issuer : 'did:ethr:ewc:0x1....';
  const role = 'role';
  issuerVerification.verifyIssuer(issuer, role);
})();

Revocation Verification

The RevocationVerification class can be used to verify statusList2021Credential and revoker's authority.

import {
  CredentialResolver,
  RevokerResolver,
  IssuerResolver,
  RevocationVerification,
  EthersProviderRevokerResolver,
  EthersProviderIssuerResolver,
  IpfsCredentialResolver,
} from '@energyweb/vc-verification';
import {
  StatusList2021Credential,
} from '@ew-did-registry/credentials-interface';
import { DidStore } from '@ew-did-registry/did-ipfs-store';
import { Resolver } from '@ew-did-registry/did-ethr-resolver';
import { DomainReader } from '@energyweb/credential-governance';
import { providers } from 'ethers';
import { RegistrySettings } from '@ew-did-registry/did-resolver-interface';
import { verifyCredential } from 'didkit-wasm-node';

(async () => {
  let provider: providers.provider;
  let issuerResolver: IssuerResolver = new EthersProviderIssuerResolver(
    DomainReader
  );
  let revokerResolver: RevokerResolver = new EthersProviderRevokerResolver(
    DomainReader
  );
  let credentialresolver: CredentialResolver = new IpfsCredentialResolver(
    DIDStore,
    Resolver
  );
  const revocationVerification = new RevocationVerification(
    revokerResolver,
    issuerResolver,
    credentialResolver,
    provider,
    registrySettings,
    verifyCredential
  );
  let credential : StatusList2021Credential;
  const role = 'role';
  revocationVerification.verifyStatusList(credential, role);
})();

Installation

This is a Node.js module available through the npm registry.

Requirements

Before installing, download and install Node.js. Node.js 16.10.0 or higher is required.

Installation is done using the following commands:

$ npm install

Build

$ npm run build

Run

$ npm run start

Testing

Unit Tests

$ npm run test-rpc