delete old records

packages/oidc4vc/lib/src/oidc4vc.dart

@@ -1720,6 +1720,12 @@ class OIDC4VC {
     try {
       final secureStorageProvider = getSecureStorage;
       final cachedData = await secureStorageProvider.get(uri);
+      // TODO(hawkbee): To be removed.
+      /// temporary solution to purge faulty stored data
+      /// Will be removed in the future
+      await purgeFaultyStorageEntries(secureStorageProvider, uri);
+
+      /// end of temporary solution
       dynamic response;
 
       dio.options.headers = headers;
@@ -1759,6 +1765,20 @@ class OIDC4VC {
     }
   }
 
+// TODO(hawkbee): To be removed.
+  Future<void> purgeFaultyStorageEntries(
+      SecureStorageProvider secureStorageProvider, String uri) async {
+    // get all entries from the storage
+    final entries = await secureStorageProvider.getAllValues();
+    // remove all entries that do not start with the https://
+    for (final entry in entries.entries) {
+      if (!entry.key.startsWith('https://')) {
+        await secureStorageProvider.delete(entry.key);
+        print(entry.key + ' deleted');
+      }
+    }
+  }
+
   Map<String, dynamic> publicKeyBase58ToPublicJwk(String publicKeyBase58) {
     ///step 1 : change the publicKeyBase58 format from base58 to base64 :
     ///decode base58 then encode in base64 urlsafe