From 2cf80449876f1960c6816a231e663cb24b04d9c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A1szl=C3=B3=20Monda?= <laci@monda.hu>
Date: Sat, 19 May 2018 14:07:18 +0200
Subject: [PATCH] Check the signature of the hardware configuration area
 instead of uniqueId.

---
 packages/uhk-common/src/util/helpers.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/uhk-common/src/util/helpers.ts b/packages/uhk-common/src/util/helpers.ts
index 57f26916..185cb375 100644
--- a/packages/uhk-common/src/util/helpers.ts
+++ b/packages/uhk-common/src/util/helpers.ts
@@ -5,10 +5,11 @@ export const getHardwareConfigFromDeviceResponse = (json: string): HardwareConfi
     const hardwareConfig = new HardwareConfiguration();
     hardwareConfig.fromBinary(UhkBuffer.fromArray(data));
 
-    if (hardwareConfig.uniqueId > 0) {
-        return hardwareConfig;
+    if (hardwareConfig.signature !== 'UHK') {
+        throw Error('Invalid hardware configuration');
     }
-    return null;
+
+    return hardwareConfig;
 };
 
 export const getUserConfigFromDeviceResponse = (json: string): UserConfiguration => {