diff --git a/src/app/_helpers/pgp-key-store.ts b/src/app/_helpers/pgp-key-store.ts
index 14d2534..d69d9b7 100644
--- a/src/app/_helpers/pgp-key-store.ts
+++ b/src/app/_helpers/pgp-key-store.ts
@@ -19,7 +19,8 @@ interface MutableKeyStore{
   getPublicKeyForSubkeyId: (subkeyId: string) => any;
   getPublicKeysForAddress: (address: string) => Array<any>;
   removeKeysForId: (keyId: string) => Array<any>;
-  removePublicKeysForId: (keyId: string) => any;
+  removePublicKeyForId: (keyId: string) => any;
+  removePublicKey: (publicKey: any) => any;
   clearKeysInKeyring: () => void;
   // revokeKey: (publicKey) => void;
 }
@@ -105,7 +106,12 @@ class MutablePgpKeyStore implements MutableKeyStore{
     return keyring.removeKeysForId(keyId);
   }
 
-  removePublicKeysForId(keyId): any {
+  removePublicKeyForId(keyId): any {
+    return keyring.publicKeys.removeForId(keyId);
+  }
+
+  removePublicKey(publicKey: any): any {
+    const keyId =  publicKey.getKeyId().toHex();
     return keyring.publicKeys.removeForId(keyId);
   }
 
diff --git a/src/app/_services/auth.service.ts b/src/app/_services/auth.service.ts
index 8373611..bbcf42f 100644
--- a/src/app/_services/auth.service.ts
+++ b/src/app/_services/auth.service.ts
@@ -4,7 +4,6 @@ import { hobaParseChallengeHeader } from '@src/assets/js/hoba.js';
 import { signChallenge } from '@src/assets/js/hoba-pgp.js';
 import {environment} from '@src/environments/environment';
 import {HttpClient} from '@angular/common/http';
-const openpgp = require('openpgp');
 
 const origin = 'http://localhost:4444';
 const pgpKeyStore = new UnsafeKeyStore();