fix: temporary work around for json ld canonizing issue

- Excluding "credentialStatus.type" from VC which is causing document
canonizing issue (#1592)
- closes #1593

Signed-off-by: sudesh.shetty <sudesh.shetty@securekey.com>

pkg/doc/signature/proof/jws.go

@@ -86,6 +86,9 @@ func createVerifyJWS(suite signatureSuite, jsonldDoc map[string]interface{}, p *
 
  proofOptionsDigest := suite.GetDigest(canonicalProofOptions)
 
+ // TODO this filter function to be removed [Issue #1592]
+ filterJsonldObject(jsonldDoc)
+
  canonicalDoc, err := prepareDocumentForJWS(suite, jsonldDoc)
  if err != nil {
  return nil, err
@@ -103,6 +106,18 @@ func createVerifyJWS(suite signatureSuite, jsonldDoc map[string]interface{}, p *
  return append([]byte(jwtHeader+"."), verifyData...), nil
 }
 
+// TODO this is a temporary fix to remove fields from JSON LD doc which is causing incorrect
+// canonized docs. To be removed as part of [Issue #1592]
+func filterJsonldObject(jsonldDoc map[string]interface{}) {
+ // remove 'type' from credential status object
+ if crStatus, ok := jsonldDoc["credentialStatus"]; ok {
+ if crstatusMap, ok := crStatus.(map[string]interface{}); ok {
+ delete(crstatusMap, "type")
+ jsonldDoc["credentialStatus"] = crstatusMap
+ }
+ }
+}
+
 func prepareJWSProof(suite signatureSuite, proofOptions map[string]interface{}) ([]byte, error) {
  proofOptions[jsonldContext] = securityContext
 

pkg/doc/signature/proof/jws_test.go

@@ -131,3 +131,33 @@ func TestGetJWTSignature(t *testing.T) {
  require.EqualError(t, err, "invalid JWT")
  require.Empty(t, signature)
 }
+
+func TestFilterJsonldObject(t *testing.T) {
+ const doc = `{
+ "@context": [
+ "https://www.w3.org/2018/credentials/v1",
+ "https://www.w3.org/2018/credentials/examples/v1"
+ ],
+ "credentialSchema": [],
+ "credentialStatus": {
+ "id": "http://issuer.vc.rest.example.com:8070/status/1",
+ "type": "CredentialStatusList2017"
+ }
+ }`
+
+ var jsonldDoc map[string]interface{}
+ err := json.Unmarshal([]byte(doc), &jsonldDoc)
+ require.NoError(t, err)
+ require.NotEmpty(t, jsonldDoc)
+
+ credStatus, ok := jsonldDoc["credentialStatus"].(map[string]interface{})
+ require.True(t, ok)
+
+ len := len(credStatus)
+ filterJsonldObject(jsonldDoc)
+
+ credStatus, ok = jsonldDoc["credentialStatus"].(map[string]interface{})
+ require.True(t, ok)
+ require.Len(t, credStatus, len-1)
+
+}