Do not clear spans of zero length

diff --git a/Hazel/Crypto/SpanCryptoExtensions.cs b/Hazel/Crypto/SpanCryptoExtensions.cs
index b734961958f94cb6c4cd0ad5d87edda8483908b6..03164ec37a62ec66c08069f821e338d8672efb2d 100644 (file)
--- a/Hazel/Crypto/SpanCryptoExtensions.cs
+++ b/Hazel/Crypto/SpanCryptoExtensions.cs
@@ -10,7 +10,10 @@ namespace Hazel.Crypto
         /// </summary>
         public static void SecureClear(this ByteSpan span)
         {
-            Array.Clear(span.GetUnderlyingArray(), span.Offset, span.Length);
+            if (span.Length > 0)
+            {
+                Array.Clear(span.GetUnderlyingArray(), span.Offset, span.Length);
+            }
         }
 
         /// <summary>