diff --git a/holo-key-manager-extension/src/lib/helpers/encryption.ts b/holo-key-manager-extension/src/lib/helpers/encryption.ts
index b2820ae..b0a075c 100644
--- a/holo-key-manager-extension/src/lib/helpers/encryption.ts
+++ b/holo-key-manager-extension/src/lib/helpers/encryption.ts
@@ -71,8 +71,7 @@ const calcDhtBytes = (data: Uint8Array): Uint8Array => {
 
 export const extendUint8Array = (inputArray: Uint8Array): Uint8Array => {
 	const prefix = new Uint8Array([132, 32, 36]);
-	const combinedArray = new Uint8Array([...prefix, ...inputArray]);
-	const suffix = calcDhtBytes(combinedArray);
+	const suffix = calcDhtBytes(inputArray);
 
-	return new Uint8Array([...combinedArray, ...suffix]);
+	return new Uint8Array([...prefix, ...inputArray, ...suffix]);
 };
diff --git a/holo-key-manager-extension/src/lib/queries/applicationQueries.ts b/holo-key-manager-extension/src/lib/queries/applicationQueries.ts
index 80d8b8e..1527c14 100644
--- a/holo-key-manager-extension/src/lib/queries/applicationQueries.ts
+++ b/holo-key-manager-extension/src/lib/queries/applicationQueries.ts
@@ -117,18 +117,18 @@ export function createSignInWithKeyMutation(queryClient: QueryClient) {
 
 			const currentAuthenticatedAppsListData = await fetchAuthenticatedAppsList();
 
-			const newIndex = currentAppsList.findIndex(
+			const index = currentAppsList.findIndex(
 				(app) => app.happId === happId && app.keyName === keyName
 			);
 
-			const pubKey = await deriveSignPubKey(newIndex);
+			const pubKey = await deriveSignPubKey(index);
 
 			storageService.set({
 				key: AUTHENTICATED_APPS_LIST,
 				value: {
 					...currentAuthenticatedAppsListData,
 					[happId]: {
-						index: newIndex,
+						index: index,
 						origin
 					}
 				},
diff --git a/holo-key-manager-extension/static/manifest.json b/holo-key-manager-extension/static/manifest.json
index d3ca349..803acdf 100644
--- a/holo-key-manager-extension/static/manifest.json
+++ b/holo-key-manager-extension/static/manifest.json
@@ -1,7 +1,7 @@
 {
 	"name": "Holo key manager",
 	"description": "A browser extension to manage holo keys",
-	"version": "0.0.67",
+	"version": "0.0.68",
 	"key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiAtKvbHNTN3O2BLRZH7RkLczaMLenSeZu+YP+KomPQPZ18nt4DY9boIN/+GWts7gCzEeQq59l8edGdF2P7xAbsRxYR88+zFEbxMtIyfyqJZIlzXwnvPJkwGu/S6arNtX48K7q1+xnJEE7VyeYSj6/i2LR+LmPigCzY9JCP7+SmWVeYbdm3kZmReK0ecfh15RXSNjZpXJUgrbea/RVxweggYKnmhhOUBmuJSCLoWTXIuJPBMwGQK1O2GKBqHOq94bPVSF7j+4WzSpPan70ZZJX/reFsOFE/idfFN6wbizjR1Ne50Po03kudEmfQgoqUhVpd0wP8A3YbqE7ODdZcCPPwIDAQAB",
 	"manifest_version": 3,
 	"action": {