1 files changed, 9 insertions, 7 deletions
diff --git a/crypto/src/tls/crypto/TlsMacSink.cs b/crypto/src/tls/crypto/TlsMacSink.cs
index 58e65c731..e7d5c70d7 100644
--- a/crypto/src/tls/crypto/TlsMacSink.cs
+++ b/crypto/src/tls/crypto/TlsMacSink.cs
@@ -19,17 +19,19 @@ namespace Org.BouncyCastle.Tls.Crypto
             get { return m_mac; }
         }
 
-        public override void WriteByte(byte b)
+        public override void Write(byte[] buffer, int offset, int count)
         {
-            m_mac.Update(new byte[]{ b }, 0, 1);
-        }
+            Streams.ValidateBufferArguments(buffer, offset, count);
 
-        public override void Write(byte[] buf, int off, int len)
-        {
-            if (len > 0)
+            if (count > 0)
             {
-                m_mac.Update(buf, off, len);
+                m_mac.Update(buffer, offset, count);
             }
         }
+
+        public override void WriteByte(byte value)
+        {
+            m_mac.Update(new byte[]{ value }, 0, 1);
+        }
     }
 }