Add working tests for invalid proofValue elements

Author: aljones15

tests/suites/algorithms-sd.js

@@ -12,6 +12,10 @@ import {
   encodeBs64Url,
   getBs64UrlBytes
 } from '../helpers.js';
+import {
+  parseDisclosureProofValue,
+  serializeProofValue
+} from './stubs.js';
 import {expect} from 'chai';
 import {getMultiKey} from '../vc-generator/key-gen.js';
 import {getSuites} from './helpers.js';
@@ -355,5 +359,10 @@ async function _setup({
   invalidProofValueHeader.proof.proofValue = `u${encodeBs64Url(invalidBuffer)}`;
   credentials.set('invalidDisclosureProofHeader', invalidProofValueHeader);
   const invalidProofArray = structuredClone(securedCredential);
+  const params = parseDisclosureProofValue({proof: invalidProofArray.proof});
+  invalidProofArray.proof.proofValue = serializeProofValue({
+    payload: [params.baseSignature, params.publicKey]
+  });
+  credentials.set('invalidProofArray', invalidProofArray);
   return credentials;
 }

tests/suites/stubs.js

@@ -101,6 +101,18 @@ function serializeDisclosureProofValue({
   return `u${base64url.encode(cbor)}`;
 }
 
+// ecdsa-sd-2023 test data creation function
+export function serializeProofValue({
+  prefix = CBOR_PREFIX_DERIVED,
+  payload,
+  typeEncoders
+}) {
+  const cbor = _concatBuffers([
+    prefix, cborg.encode(payload, {useMaps: true, typeEncoders})
+  ]);
+  return `u${base64url.encode(cbor)}`;
+}
+
 // ecdsa-sd-2023 derive helper
 async function _createDisclosureData({
   cryptosuite, document, proof, documentLoader