From e021ebbe27c60c8169b3b7203aa17d1129d10132 Mon Sep 17 00:00:00 2001
From: inga-lovinde <52715130+inga-lovinde@users.noreply.github.com>
Date: Mon, 27 Mar 2017 13:45:08 +0300
Subject: [PATCH] Safety checks

---
 WhiteRabbit/Program.cs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/WhiteRabbit/Program.cs b/WhiteRabbit/Program.cs
index 58cc288..5014e64 100644
--- a/WhiteRabbit/Program.cs
+++ b/WhiteRabbit/Program.cs
@@ -27,6 +27,18 @@
 
             var maxWordsInPhrase = int.Parse(ConfigurationManager.AppSettings["MaxWordsInPhrase"]);
 
+            if (sourceChars.Length + maxWordsInPhrase > 27)
+            {
+                Console.WriteLine("Only anagrams of up to 27 characters are allowed");
+                return;
+            }
+
+            if (!BitConverter.IsLittleEndian)
+            {
+                Console.WriteLine("Only little-endian systems are supported due to MD5Digest optimizations");
+                return;
+            }
+
             var expectedHashesAsVectors = ConfigurationManager.AppSettings["ExpectedHashes"]
                 .Split(',')
                 .Select(hash => new Vector<uint>(HexadecimalStringToUnsignedIntArray(hash)))