1 files changed, 87 insertions, 0 deletions
diff --git a/extra/yassl/taocrypt/include/random.hpp b/extra/yassl/taocrypt/include/random.hpp
new file mode 100644
index 00000000000..5fdda8da47a
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+++ b/extra/yassl/taocrypt/include/random.hpp
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+/* random.hpp                                
+ *
+ * Copyright (C) 2003 Sawtooth Consulting Ltd.
+ *
+ * This file is part of yaSSL.
+ *
+ * yaSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * yaSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/* random.hpp provides a crypto secure Random Number Generator using an OS
+   specific seed
+*/
+
+
+#ifndef TAO_CRYPT_RANDOM_HPP
+#define TAO_CRYPT_RANDOM_HPP
+
+#include "arc4.hpp"
+#include "error.hpp"
+
+namespace TaoCrypt {
+
+
+// OS specific seeder
+class OS_Seed {
+public:
+    OS_Seed();
+    ~OS_Seed();
+
+    void   GenerateSeed(byte*, word32 sz);
+    Error  GetError() const { return error_; }
+private:
+#if defined(WIN32)
+    #if defined(_WIN64)
+        typedef unsigned __int64 ProviderHandle;
+        // type HCRYPTPROV, avoid #include <windows.h>
+    #else
+        typedef unsigned long ProviderHandle;
+    #endif
+    ProviderHandle handle_;
+#else
+    int fd_;
+#endif
+    Error error_;
+
+    OS_Seed(const OS_Seed&);              // hide copy
+    OS_Seed& operator=(const OS_Seed&);   // hide assign
+};
+
+
+// secure Random Nnumber Generator
+class RandomNumberGenerator {
+public:
+    RandomNumberGenerator();
+    ~RandomNumberGenerator() {}
+
+    void GenerateBlock(byte*, word32 sz);
+    byte GenerateByte();
+
+    ErrorNumber GetError() const { return seed_.GetError().What(); }
+private:
+    OS_Seed seed_;
+    ARC4    cipher_;
+
+    RandomNumberGenerator(const RandomNumberGenerator&);           // hide copy
+    RandomNumberGenerator operator=(const RandomNumberGenerator&); // && assign
+};
+
+
+
+
+}  // namespace
+
+#endif // TAO_CRYPT_RANDOM_HPP
+