@ew-did-registry/claims/test/claimsFactory.test.ts

The package exposes functionality needed to create, inspect, approve, and verify Private and Public claims

import chai from 'chai';
import chaiAsPromised from 'chai-as-promised';
import { Keys } from '@ew-did-registry/keys';
import { EwSigner, Operator } from '@ew-did-registry/did-ethr-resolver';
import { Methods } from '@ew-did-registry/did';
import { DidStore } from '@ew-did-registry/did-ipfs-store';
import {
  DIDDocumentFull,
  IDIDDocumentFull,
} from '@ew-did-registry/did-document';
import { ChildProcess } from 'child_process';
import {
  ClaimsFactory,
  IClaimsIssuer,
  IClaimsUser,
  IClaimsVerifier,
  IProofData,
} from '../src';
import {
  deployRegistry,
  shutdownIpfsCluster,
  spawnIpfsCluster,
} from '../../../tests';
import {
  ProviderSettings,
  ProviderTypes,
} from '@ew-did-registry/did-resolver-interface';

chai.use(chaiAsPromised);
chai.should();

describe('[CLAIMS PACKAGE/FACTORY CLAIMS]', function () {
  this.timeout(0);
  const userKeys = new Keys();
  const providerSettings: ProviderSettings = {
    type: ProviderTypes.HTTP,
  };
  const userAddress = userKeys.getAddress();
  const userDid = `did:${Methods.Erc1056}:${userAddress}`;
  const user = EwSigner.fromPrivateKey(userKeys.privateKey, providerSettings);

  const issuerKeys = new Keys();
  const issuerAddress = issuerKeys.getAddress();
  const issuerDid = `did:${Methods.Erc1056}:${issuerAddress}`;
  const issuer = EwSigner.fromPrivateKey(
    issuerKeys.privateKey,
    providerSettings
  );

  const verifierKeys = new Keys();
  const verifierAddress = verifierKeys.getAddress();
  const verifierDid = `did:${Methods.Erc1056}:${verifierAddress}`;
  const verifier = EwSigner.fromPrivateKey(
    verifierKeys.privateKey,
    providerSettings
  );

  let claimsUser: IClaimsUser;
  let claimsIssuer: IClaimsIssuer;
  let claimsVerifier: IClaimsVerifier;

  let userDoc: IDIDDocumentFull;
  let cluster: ChildProcess;

  before(async () => {
    const registry = await deployRegistry([
      userAddress,
      issuerAddress,
      verifierAddress,
    ]);
    console.log(`registry: ${registry}`);
    cluster = await spawnIpfsCluster();
    const store = new DidStore('http://localhost:8080');
    userDoc = new DIDDocumentFull(
      userDid,
      new Operator(user, { address: registry })
    );
    const issuerDoc = new DIDDocumentFull(
      issuerDid,
      new Operator(issuer, { address: registry })
    );
    const verifierDoc = new DIDDocumentFull(
      verifierDid,
      new Operator(verifier, { address: registry })
    );
    await userDoc.create();
    await issuerDoc.create();
    await verifierDoc.create();

    claimsUser = new ClaimsFactory(
      userKeys,
      userDoc,
      store,
      providerSettings
    ).createClaimsUser();

    claimsIssuer = new ClaimsFactory(
      issuerKeys,
      issuerDoc,
      store,
      providerSettings
    ).createClaimsIssuer();

    claimsVerifier = new ClaimsFactory(
      verifierKeys,
      verifierDoc,
      store,
      providerSettings
    ).createClaimsVerifier();
  });

  after(async () => {
    shutdownIpfsCluster(cluster);
  });

  it('workflow of private claim generation, issuance and presentation should pass', async () => {
    // User(Subject) side
    const privateData = { private: '123', public: 'shhh' };
    const { token: privateToken, saltedFields } =
      await claimsUser.createPrivateClaim(privateData, issuerDid);
    // Issuer side
    const issuedToken = await claimsIssuer.issuePrivateClaim(privateToken);
    // Application/User side
    const claimUrl = await claimsUser.publishPrivateClaim(
      issuedToken,
      saltedFields
    );
    const encryptedSaltedFields: IProofData = {
      private: { value: saltedFields.private, encrypted: true },
      public: { value: saltedFields.public, encrypted: false },
    };
    const proofToken = await claimsUser.createProofClaim(
      claimUrl,
      encryptedSaltedFields
    );
    // Verifier side
    try {
      await claimsVerifier.verifyPrivateProof(proofToken);
    } catch (e) {
      console.error('error verifing claims:', e);
    }
  });

  it('workflow of public claim generation, issuance and presentation should pass', async () => {
    // User(Subject) side
    const publicData = { public: '123' };
    const token = await claimsUser.createPublicClaim(publicData);
    // Issuer side
    const issuedToken = await claimsIssuer.issuePublicClaim(token);
    // Application/User side
    const claimUrl = await claimsUser.publishPublicClaim(
      issuedToken,
      publicData
    );
    // Verifier side
    return claimsVerifier.verifyPublicProof(claimUrl).should.be.fulfilled;
  });
});