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[mono.git] / mcs / class / corlib / System.Security.Cryptography / HashAlgorithm.cs

diff --git a/mcs/class/corlib/System.Security.Cryptography/HashAlgorithm.cs b/mcs/class/corlib/System.Security.Cryptography/HashAlgorithm.cs
index a58905a9952f350d057fdfdd7f6013d63f6d2f82..14e5d116c57cfe50d3cc3678f480f9e83369a066 100644 (file)
--- a/mcs/class/corlib/System.Security.Cryptography/HashAlgorithm.cs
+++ b/mcs/class/corlib/System.Security.Cryptography/HashAlgorithm.cs
@@ -7,11 +7,7 @@
 //
 // Copyright 2001 by Matthew S. Ford.
 // Portions (C) 2002 Motus Technologies Inc. (http://www.motus.com)
-// (C) 2004 Novell (http://www.novell.com)
-//
-
-//
-// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
 //
 // Permission is hereby granted, free of charge, to any person obtaining
 // a copy of this software and associated documentation files (the
@@ -35,9 +31,13 @@
 
 using System.Globalization;
 using System.IO;
+using System.Runtime.InteropServices;
 
 namespace System.Security.Cryptography {
 
+#if NET_2_0
+       [ComVisible (true)]
+#endif
        public abstract class HashAlgorithm : ICryptoTransform {
 
                protected byte[] HashValue;
@@ -176,9 +176,22 @@ namespace System.Security.Cryptography {
                        // ordered to avoid possible integer overflow
                        if ((inputOffset < 0) || (inputOffset > inputBuffer.Length - inputCount))
                                throw new ArgumentException ("inputBuffer");
-                       // ordered to avoid possible integer overflow
-                       if ((outputOffset < 0) || (outputOffset > outputBuffer.Length - inputCount))
+                       if (outputOffset < 0) {
+#if NET_2_0
+                               throw new ArgumentOutOfRangeException ("outputOffset", "< 0");
+#else
                                throw new IndexOutOfRangeException ("outputBuffer");
+#endif
+                       }
+                       if (outputOffset > outputBuffer.Length - inputCount) {
+#if NET_2_0
+                               throw new ArgumentException ("outputOffset + inputCount", 
+                                       Locale.GetText ("Overflow"));
+#else
+                               throw new IndexOutOfRangeException ("outputBuffer");
+#endif
+                       }
+                       // ordered to avoid possible integer overflow
 
                        // note: other exceptions are handled by Buffer.BlockCopy
                        Buffer.BlockCopy (inputBuffer, inputOffset, outputBuffer, outputOffset, inputCount);