Diff: random.h

Revision:

0:5045d2638c29

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/random.h	Sat Feb 05 01:09:17 2011 +0000
@@ -0,0 +1,72 @@
+/* random.h
+ *
+ * Copyright (C) 2006-2009 Sawtooth Consulting Ltd.
+ *
+ * This file is part of CyaSSL.
+ *
+ * CyaSSL 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.
+ *
+ * CyaSSL 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
+ */
+
+
+#ifndef CTAO_CRYPT_RANDOM_H
+#define CTAO_CRYPT_RANDOM_H
+
+#include "arc4.h"
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+
+#if defined(USE_WINDOWS_API)
+    #if defined(_WIN64)
+        typedef unsigned __int64 ProviderHandle;
+        /* type HCRYPTPROV, avoid #include <windows.h> */
+    #else
+        typedef unsigned long ProviderHandle;
+    #endif
+#endif
+
+
+/* OS specific seeder */
+typedef struct OS_Seed {
+    #if defined(USE_WINDOWS_API)
+        ProviderHandle handle;
+    #else
+        int fd;
+    #endif
+} OS_Seed;
+
+int GenerateSeed(OS_Seed* os, byte* seed, word32 sz);
+
+
+/* secure Random Nnumber Generator */
+typedef struct RNG {
+    OS_Seed seed;
+    Arc4    cipher;
+} RNG;
+
+
+int  InitRng(RNG*);
+void RNG_GenerateBlock(RNG*, byte*, word32 sz);
+byte RNG_GenerateByte(RNG*);
+
+
+#ifdef __cplusplus
+    } /* extern "C" */
+#endif
+
+#endif /* CTAO_CRYPT_RANDOM_H */
+