worldcerts-verifier

@govtechsg/opencerts-verify

Library to verify any Opencerts document. This library extends @govtechsg/oa-verify.

Installation

npm install @govtechsg/opencerts-verify

Usage

import { documentMainnetValidWithCertificateStore } from "./test/fixtures/v2/document";
import { verify, isValid } from "@govtechsg/opencerts-verify";

const fragments = await verify(documentMainnetValidWithCertificateStore, { network: "ropsten" });
console.log(fragments); // see below
console.log(isValid(fragments)); // display true

[
  {
    "data": true,
    "status": "VALID",
    "name": "OpenAttestationHash",
    "type": "DOCUMENT_INTEGRITY"
  },
  {
    "data": {
      "details": [
        {
          "address": "0x007d40224f6562461633ccfbaffd359ebb2fc9ba",
          "issued": true
        }
      ],
      "issuedOnAll": true
    },
    "status": "VALID",
    "name": "OpenAttestationEthereumDocumentStoreIssued",
    "type": "DOCUMENT_STATUS"
  },
  {
    "message": "Document issuers doesn't have \"tokenRegistry\" property or TOKEN_REGISTRY method",
    "name": "OpenAttestationEthereumTokenRegistryMinted",
    "status": "SKIPPED",
    "type": "DOCUMENT_STATUS"
  },
  {
    "data": {
      "details": [
        {
          "address": "0x007d40224f6562461633ccfbaffd359ebb2fc9ba",
          "revoked": false
        }
      ],
      "revokedOnAny": false
    },
    "status": "VALID",
    "name": "OpenAttestationEthereumDocumentStoreRevoked",
    "type": "DOCUMENT_STATUS"
  },
  {
    "message": "Document issuers doesn't have \"documentStore\" / \"tokenRegistry\" property or doesn't use DNS-TXT type",
    "status": "SKIPPED",
    "name": "OpenAttestationDnsTxt",
    "type": "ISSUER_IDENTITY"
  },
  {
    "data": [
      {
        "status": "VALID",
        "value": "0x007d40224f6562461633ccfbaffd359ebb2fc9ba",
        "name": "Government Technology Agency of Singapore (GovTech)",
        "displayCard": true,
        "website": "https://www.tech.gov.sg",
        "email": "[e-mail]",
        "phone": "[phone]",
        "logo": "/static/images/GOVTECH_logo.png",
        "id": "govtech-registry"
      }
    ],
    "name": "OpencertsRegistryVerifier",
    "status": "VALID",
    "type": "ISSUER_IDENTITY"
  }
]

Differences with @govtechsg/oa-verify

OpencertsRegistryVerifier

OpencertsRegistryVerifier is a new verifier specific to Opencerts documents:

• it ensures document ISSUER_IDENTITY and works closely with OpenAttestationDnsTxt verifier (see isValid below)
• it returns a VALID fragment if at least one of the issuer is in Opencerts registry
• it returns a SKIPPED fragment if none of the issuers is in the registry.

isValid

With the addition of OpencertsRegistryVerifier verifier, different rules apply for ISSUER_IDENTITY type verifiers:

• ISSUER_IDENTITY is valid if at least one issuer is in the registry, i.e. if OpencertsRegistryVerifier has status VALID
• if OpencertsRegistryVerifier doesn't have VALID status then all issuers must have valid DNS-TXT record.

API

Table of Contents

License

GPL-3.0