fix threading bug

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@278 57ff6487-cd31-0410-9ec3-f628ee90f5f0

1 files changed, 1 insertions, 1 deletions

diff --git a/osrng.cpp b/osrng.cpp
index c310575..52d1f53 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");