From ce26bc15a91f7e9fa64edab263091d8745810e28 Mon Sep 17 00:00:00 2001
From: Syrone Wong <wong.syrone@gmail.com>
Date: Thu, 20 Oct 2016 08:06:39 +0800
Subject: [PATCH] Refine random generator handling

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>
---
 shadowsocks-csharp/Encryption/IVEncryptor.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/shadowsocks-csharp/Encryption/IVEncryptor.cs b/shadowsocks-csharp/Encryption/IVEncryptor.cs
index 12845c0b..f6781a29 100755
--- a/shadowsocks-csharp/Encryption/IVEncryptor.cs
+++ b/shadowsocks-csharp/Encryption/IVEncryptor.cs
@@ -237,10 +237,10 @@ namespace Shadowsocks.Encryption
 
         protected static void randBytes(byte[] buf, int length)
         {
-            byte[] temp = new byte[length];
-            RNGCryptoServiceProvider rngServiceProvider = new RNGCryptoServiceProvider();
-            rngServiceProvider.GetBytes(temp);
-            temp.CopyTo(buf, 0);
+            using (RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider())
+            {
+                rng.GetBytes(buf, 0, length);
+            }
         }
 
         public override void Encrypt(byte[] buf, int length, byte[] outbuf, out int outlength)