From 3ec852b64cf07d00298253057a65f2bb308277ad Mon Sep 17 00:00:00 2001
From: weidai <weidai11@users.noreply.github.com>
Date: Sat, 3 Feb 2007 13:29:09 +0000
Subject: [PATCH] fix threading bug

---
 osrng.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osrng.cpp b/osrng.cpp
index c310575c..52d1f537 100644
--- a/osrng.cpp
+++ b/osrng.cpp
@@ -85,7 +85,7 @@ void NonblockingRng::GenerateBlock(byte *output, size_t size)
 {
 #ifdef CRYPTOPP_WIN32_AVAILABLE
 #	ifdef WORKAROUND_MS_BUG_Q258000
-		static MicrosoftCryptoProvider m_Provider;
+		const MicrosoftCryptoProvider &m_Provider = Singleton<MicrosoftCryptoProvider>().Ref();
 #	endif
 	if (!CryptGenRandom(m_Provider.GetProviderHandle(), (DWORD)size, output))
 		throw OS_RNG_Err("CryptGenRandom");