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-rw-r--r--src/Core/RandomNumberGenerator.h55
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diff --git a/src/Core/RandomNumberGenerator.h b/src/Core/RandomNumberGenerator.h
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+/*
+ Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Core_RandomNumberGenerator
+#define TC_HEADER_Core_RandomNumberGenerator
+
+#include "Platform/Platform.h"
+#include "Volume/Hash.h"
+#include "Common/Random.h"
+
+namespace TrueCrypt
+{
+ class RandomNumberGenerator
+ {
+ public:
+ static void AddToPool (const ConstBufferPtr &buffer);
+ static void GetData (const BufferPtr &buffer) { GetData (buffer, false); }
+ static void GetDataFast (const BufferPtr &buffer) { GetData (buffer, true); }
+ static shared_ptr <Hash> GetHash ();
+ static bool IsEnrichedByUser () { return EnrichedByUser; }
+ static bool IsRunning () { return Running; }
+ static ConstBufferPtr PeekPool () { return Pool; }
+ static void SetEnrichedByUserStatus (bool enriched) { EnrichedByUser = enriched; }
+ static void SetHash (shared_ptr <Hash> hash);
+ static void Start ();
+ static void Stop ();
+
+ static const size_t PoolSize = RNG_POOL_SIZE;
+
+ protected:
+ static void AddSystemDataToPool (bool fast);
+ static void GetData (const BufferPtr &buffer, bool fast);
+ static void HashMixPool ();
+ static void Test ();
+ RandomNumberGenerator ();
+
+ static const size_t MaxBytesAddedBeforePoolHashMix = RANDMIX_BYTE_INTERVAL;
+
+ static Mutex AccessMutex;
+ static size_t BytesAddedSincePoolHashMix;
+ static bool EnrichedByUser;
+ static SecureBuffer Pool;
+ static shared_ptr <Hash> PoolHash;
+ static size_t ReadOffset;
+ static bool Running;
+ static size_t WriteOffset;
+ };
+}
+
+#endif // TC_HEADER_Core_RandomNumberGenerator