fix sing vp

oidc4vp/forms.py

@@ -78,11 +78,13 @@ class AuthorizeForm(forms.Form):
 
         context = {
             "holder_did": did.did,
-            "verificable_credentials": vc_list,
             "id": str(uuid.uuid4())
         }
         unsigned_vp = vp_template.render(context)
+        vp = json.loads(unsigned_vp)
+        vp["verifiableCredential"] = vc_list
+        vp_str = json.dumps(vp)
 
         key_material = did.get_key_material()
-        self.vp = sign(key_material, unsigned_vp, did.did)
+        self.vp = sign(vp_str, key_material, did.did)
 

oidc4vp/templates/credentials/verifiable_presentation.json

@@ -2,10 +2,10 @@
   "@context": [
     "https://www.w3.org/2018/credentials/v1"
   ],
-  "id": "{{ id }}"",
+  "id": "{{ id }}",
   "type": [
     "VerifiablePresentation"
   ],
   "holder": "{{ holder_did }}",
-  "verifiableCredential": {{ verificable_credentials }}
+  "verifiableCredential": ""
 }