From 2bed3eb47f27002fd5dee62b5b3906a9bc27b41f Mon Sep 17 00:00:00 2001
From: JKorf <jankorf91@gmail.com>
Date: Wed, 1 Aug 2018 14:46:35 +0200
Subject: [PATCH] Re-added null checks

---
 CryptoExchange.Net/Authentication/ApiCredentials.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CryptoExchange.Net/Authentication/ApiCredentials.cs b/CryptoExchange.Net/Authentication/ApiCredentials.cs
index f312ae3..721735f 100644
--- a/CryptoExchange.Net/Authentication/ApiCredentials.cs
+++ b/CryptoExchange.Net/Authentication/ApiCredentials.cs
@@ -35,6 +35,9 @@ namespace CryptoExchange.Net.Authentication
         /// <param name="privateKey">The private key used for signing</param>
         public ApiCredentials(string privateKey)
         {
+            if(string.IsNullOrEmpty(privateKey))
+                throw new ArgumentException("Private key can't be null/empty");
+
             var securePrivateKey = new SecureString();
             foreach (var c in privateKey)
                 securePrivateKey.AppendChar(c);
@@ -59,6 +62,9 @@ namespace CryptoExchange.Net.Authentication
         /// <param name="privateKey">The private key used for signing</param>
         public ApiCredentials(string key, string secret)
         {
+            if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(secret))
+                throw new ArgumentException("Key and secret can't be null/empty");
+
             var secureApiKey = new SecureString();
             foreach (var c in key)
                 secureApiKey.AppendChar(c);