Initial checkin1.5.6

1 files changed, 38 insertions, 0 deletions

diff --git a/include/x931_rng.h b/include/x931_rng.h
new file mode 100644
index 000000000..fda64ba86
--- /dev/null
+++ b/include/x931_rng.h
@@ -0,0 +1,38 @@
+/*************************************************
+* ANSI X9.31 RNG Header File                     *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_ANSI_X931_RNG_H__
+#define BOTAN_ANSI_X931_RNG_H__
+
+#include <botan/base.h>
+
+namespace Botan {
+
+/*************************************************
+* ANSI X9.31 RNG                                 *
+*************************************************/
+class ANSI_X931_RNG : public RandomNumberGenerator
+   {
+   public:
+      void randomize(byte[], u32bit) throw(PRNG_Unseeded);
+      bool is_seeded() const;
+      void clear() throw();
+      std::string name() const;
+
+      ANSI_X931_RNG(const std::string& = "", RandomNumberGenerator* = 0);
+      ~ANSI_X931_RNG();
+   private:
+      void add_randomness(const byte[], u32bit);
+      void update_buffer();
+
+      BlockCipher* cipher;
+      RandomNumberGenerator* prng;
+      SecureVector<byte> V, R;
+      u32bit position;
+   };
+
+}
+
+#endif