Add null-safe GetHashCode

1 files changed, 5 insertions, 0 deletions

diff --git a/crypto/src/util/Platform.cs b/crypto/src/util/Platform.cs

index 6f7a8b17b..547cef3fa 100644
--- a/crypto/src/util/Platform.cs
+++ b/crypto/src/util/Platform.cs
@@ -165,6 +165,11 @@ namespace Org.BouncyCastle.Utilities
         }
 #endif
 
+        internal static int GetHashCode(object obj)
+        {
+            return null == obj ? 0 : obj.GetHashCode();
+        }
+
         internal static string ToLowerInvariant(string s)
         {
 #if PORTABLE