Merge pull request #72 from blockchain-certificates/feat/align-data-i…

…ntegrity-proof

feat(DataIntegrityProof): enable verification of data integrity proof

package.json

@@ -7,22 +7,22 @@
   "typings": "lib/index.d.ts",
   "dependencies": {
     "@blockcerts/explorer-lookup": "^1.5.1",
+    "@blockcerts/schemas": "^3.6.2",
     "@trust/keyto": "^1.0.1",
     "@vaultie/lds-merkle-proof-2019": "^0.0.12",
     "bitcoinjs-lib": "^6.0.2",
     "bs58": "^4.0.1",
     "elliptic": "^6.5.4",
     "hash-base": "github:blockchain-certificates/hash-base",
     "js-sha3": "^0.8.0",
-    "jsonld": "^8.2.0",
+    "jsonld": "^8.3.2",
     "jsonld-signatures": "^11.2.1",
     "lodash.clonedeep": "^4.5.0",
     "secp256k1": "^5.0.0",
     "sha256": "^0.2.0",
     "xmlhttprequest": "^1.8.0"
   },
   "devDependencies": {
-    "@blockcerts/schemas": "^3.2.1",
     "@decentralized-identity/did-common-typescript": "^0.1.19",
     "@digitalbazaar/vc": "^6.2.0",
     "@rollup/plugin-commonjs": "^25.0.7",

tests/fixtures/mocknet-vc-v2-data-integrity-proof.json

@@ -0,0 +1,39 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/credentials/v2",
+    "https://w3id.org/security/data-integrity/v2",
+    "https://w3id.org/blockcerts/v3.1"
+  ],
+  "id": "urn:uuid:bbba8553-8ec1-445f-82c9-a57251dd731c",
+  "type": [
+    "VerifiableCredential",
+    "BlockcertsCredential"
+  ],
+  "issuer": "https://www.blockcerts.org/samples/3.0/issuer-blockcerts.json",
+  "validFrom": "2022-07-13T20:21:40.088Z",
+  "validUntil": "2039-07-13T00:00:00.000Z",
+  "credentialSubject": {
+    "id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
+    "name": "Julien Fraichot",
+    "email": "[email protected]",
+    "publicKey": "ecdsa-koblitz-pubkey:1BPQXndcz5Uf3qZQkgnvJC87LUD5n7a2mC",
+    "claim": {
+      "name": "Master of Puppets",
+      "description": "Awarded to those who rock"
+    }
+  },
+  "metadata": "{\"classOf\":\"2021\"}",
+  "display": {
+    "contentMediaType": "text/html",
+    "content": "<div style=\"background-color:transparent;padding:6px;display:inline-flex;align-items:center;flex-direction:column\">Yo</div>"
+  },
+  "proof": {
+    "id": "urn:uuid:a68a8c11-556b-42dc-b840-55677639db7d",
+    "type": "DataIntegrityProof",
+    "cryptosuite": "merkle-proof-2019",
+    "proofPurpose": "assertionMethod",
+    "created": "2024-02-15T15:22:35.361231",
+    "proofValue": "zEuZQLZTYrdsDv2FbpkZtthsgpG54RGrfTSvyUNDGi1ecmJdY9KMtFSxbbs6pEspqa38GgXJD9ReRosEBrXsXKu4Nk7xMGnm6wfzuCUiwwBCXKrfs8e8r6a1gbyXbzifiJprkeVD9UtaVtdb5QXKHPRikuQR8F9epBejTF7MfQukr1T5U7mZ8nSuKXDJ5epzg6mCANdCFt8ZrYZiLUZGrWpd33BfeuyaJxSGYcfMgjzJGvLnoZpAXHi1MWpNFhxxuTn6BtUbivTJqQhgzUDoXaErWeMEe1z8wRR5TgzNaoULxGp",
+    "verificationMethod": "https://www.blockcerts.org/samples/3.0/issuer-blockcerts.json#key-1"
+  }
+}

tests/verification/data-integrity-proof-support.test.ts

@@ -0,0 +1,19 @@
+import fixture from '../fixtures/mocknet-vc-v2-data-integrity-proof.json';
+import { LDMerkleProof2019 } from '../../src';
+
+describe('given the documnet is signed following the DataIntegrityProof spec', function () {
+  describe('and is a valid MerkleProof2019 signature', function () {
+    it('should verify successfully', async function () {
+      const instance = new LDMerkleProof2019({
+        document: fixture,
+        proof: fixture.proof // merkle proof
+      });
+      const result = await instance.verifyProof();
+      expect(result).toEqual({
+        verified: true,
+        verificationMethod: null,
+        error: ''
+      });
+    });
+  });
+});