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vcdm2-test-suite

Test Suite for Verifiable Credentials Data Model (VCDM) 2.0

Table of Contents

Background

Provides interoperability tests for verifiable credential processors (issuers/verifiers) that support vc-data-model-2.0.

Install

npm i

Setup

You will need a VC API compatible issuer and verifier that can handle both VCs and VPs.

The issuer endpoint will need to follow the VC API's issuer documentation.

A request to an issuer endpoint will look like this:

{
  "credential": {
    "@context": [
      "https://www.w3.org/ns/credentials/v2", 
      "https://www.w3.org/ns/credentials/examples/v2"
    ],
    "id": "http://university.example/credentials/1872",
    "type": ["VerifiableCredential", "ExampleAlumniCredential"],
    "issuer": "https://university.example/issuers/565049",
    "validFrom": "2023-07-01T19:23:24Z",
    "credentialSubject": {
      "id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
      "alumniOf": {
        "id": "did:example:c276e12ec21ebfeb1f712ebc6f1",
        "name": "Example University"
      }
    },
  },
  "options": {}
}

An issuer response will look like this:

{
  "verifiableCredential": {
    "@context": [
      "https://www.w3.org/ns/credentials/v2", 
      "https://www.w3.org/ns/credentials/examples/v2"
    ],
    "id": "http://university.example/credentials/1872",
    "type": ["VerifiableCredential", "ExampleAlumniCredential"],
    "issuer": "https://university.example/issuers/565049",
    "validFrom": "2023-07-01T19:23:24Z",
    "credentialSubject": {
      "id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
      "alumniOf": {
        "id": "did:example:c276e12ec21ebfeb1f712ebc6f1",
        "name": "Example University"
      }
    },
    "proof": {
      "type": "DataIntegrityProof",
      "cryptosuite": "eddsa-2022",
      "created": "2023-06-18T21:19:10Z",
      "proofPurpose": "assertionMethod",
      "verificationMethod": "https://university.example/issuers/565049#key-1",
      "proofValue": "zQeVbY4oey...V6doDwLWx"
    }
  }
}

The credential verifier endpoint will also need to follow the VC API verifier documentation.

A request to the verifier endpoint for a credential will look like this:

{
  "verifiableCredential": {
    "@context": [
      "https://www.w3.org/ns/credentials/v2", 
      "https://www.w3.org/ns/credentials/examples/v2"
    ],
    "id": "http://university.example/credentials/1872",
    "type": ["VerifiableCredential", "ExampleAlumniCredential"],
    "issuer": "https://university.example/issuers/565049",
    "validFrom": "2023-07-01T19:23:24Z",
    "credentialSubject": {
      "id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
      "alumniOf": {
        "id": "did:example:c276e12ec21ebfeb1f712ebc6f1",
        "name": "Example University"
      }
    },
    "proof": {
      "type": "DataIntegrityProof",
      "cryptosuite": "eddsa-2022",
      "created": "2023-06-18T21:19:10Z",
      "proofPurpose": "assertionMethod",
      "verificationMethod": "https://university.example/issuers/565049#key-1",
      "proofValue": "zQeVbY4oey...V6doDwLWx"
    }
  },
  "options": {}
}

A response from the verifier endpoint for a credential might look like this (only HTTP response codes are checked for now):

{
  "checks": ["proof"],
  "warnings": ["invalid-uri"],
  "errors": ["invalid proof"]
}

The presentation verifier endpoint will also need to follow the VC API verifier documentation.

A request to the verifier endpoint for a presentation will look like this:

{
  "verifiablePresentation": {
    "@context": ["https://www.w3.org/ns/credentials/v2"],
    "type": ["VerifiablePresentation"],
    "holder": "did:example:holder123456789",
    "verifiableCredential": [{
      "@context": [
        "https://www.w3.org/ns/credentials/v2", 
        "https://www.w3.org/ns/credentials/examples/v2"
      ],
      "id": "http://university.example/credentials/1872",
      "type": ["VerifiableCredential", "ExampleAlumniCredential"],
      "issuer": "https://university.example/issuers/565049",
      "validFrom": "2023-07-01T19:23:24Z",
      "credentialSubject": {
        "id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
        "alumniOf": {
          "id": "did:example:c276e12ec21ebfeb1f712ebc6f1",
          "name": "Example University"
        }
      },
      "proof": {
        "type": "DataIntegrityProof",
        "cryptosuite": "eddsa-2022",
        "created": "2023-06-18T21:19:10Z",
        "proofPurpose": "assertionMethod",
        "verificationMethod": "https://university.example/issuers/565049#key-1",
        "proofValue": "zQeVbY4oey...V6doDwLWx"
      }
    }],
    "proof": {
      "type": "DataIntegrityProof",
      "cryptosuite": "eddsa-2022",
      "challenge": "08cf4ce0-2bd0-11ee-8622-83054936f200",
      "domain": "example.com",
      "created": "2023-06-18T21:19:10Z",
      "proofPurpose": "assertionMethod",
      "verificationMethod": "did:example:holder123456789#key-1",
      "proofValue": "zQeVbY4y...oDwLWxV6d"
    }
  },
  "options": {
    "challenge": "secret",
    "domain": "example.com"
  }
}

A response from the verifier endpoint for a presentation will look like this:

{
  "checks": ["proof"],
  "warnings": ["invalid-uri"],
  "errors": ["invalid proof"]
}

Issuers and verifiers will need to not error when these contexts are used:

Usage

npm test

Implementation

VC-API

To add your implementation to this test suite You will need to add 3 endpoints to your implementation manifest.

  • A credentials issuer endpoint (/credentials/issue) in the issuers property.
  • A credentials verifier endpoint (/credentials/verify) in the verifiers property.
  • A presentations verifier (presentations/verify) in the vpVerifiers property.

All endpoints will need the tag vc.2.0. A simplified manifest would look like this:

{
  "name": "My Company",
  "implementation": "My implementation",
  "issuers": [{
    "id": "",
    "endpoint": "https://issuer.mycompany.com/credentials/issue",
    "method": "POST",
    "tags": ["vc2.0"]
  }],
  "verifiers": [{
    "id": "",
    "endpoint": "https://verifier.mycompany.com/credentials/verify",
    "method": "POST",
    "tags": ["vc2.0"]
  }],
  "vpVerifiers": [{
    "id": "",
    "endpoint": "https://verifier.mycompany.com/presentations/verify",
    "method": "POST",
    "tags": ["vc2.0"]
  }]
}

This example above is an unauthenticated endpoint. You may add zcap or oauth authentication to your endpoints.

See the vc-api-test-suite-implementations README here.

To run the tests, some implementations require client secrets that can be passed as env variables to the test script. To see which ones require client secrets, you can check the vc-api-test-suite-implementations library.

Docker (TODO)

We are currently adding a feature that would allow Docker images (using the VC API above) to be used instead of live endpoints. The docker image that you provide will be started when the test suite is run. The image is expected to expose the API provided above, which will be utilized in the same way that live HTTP endpoints are used above.

License

Copyright © 2023 World Wide Web Consortium, (MIT, ERCIM, Keio, Beihang) and others. All Rights Reserved. http://www.w3.org/Consortium/Legal/2008/04-testsuite-copyright.html

Distributed under both the W3C Test Suite License (SPDX: LicenseRef-scancode-w3c-test-suite) and the W3C 3-clause BSD License. To contribute to a W3C Test Suite, see the policies and contribution forms.

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