Merge branch 'master' of git://git-nokia.trolltech.com.au/qtsoftware/research/qtuitest

1 files changed, 53 insertions, 0 deletions

diff --git a/botan/src/rng/randpool/randpool.h b/botan/src/rng/randpool/randpool.h
new file mode 100644
index 0000000..b6a3add
--- /dev/null
+++ b/botan/src/rng/randpool/randpool.h
@@ -0,0 +1,53 @@
+/*
+* Randpool
+* (C) 1999-2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_RANDPOOL_H__
+#define BOTAN_RANDPOOL_H__
+
+#include <botan/rng.h>
+#include <botan/block_cipher.h>
+#include <botan/mac.h>
+#include <vector>
+
+namespace Botan {
+
+/**
+* Randpool
+*/
+class BOTAN_DLL Randpool : public RandomNumberGenerator
+   {
+   public:
+      void randomize(byte[], u32bit);
+      bool is_seeded() const { return seeded; }
+      void clear() throw();
+      std::string name() const;
+
+      void reseed(u32bit bits_to_collect);
+      void add_entropy_source(EntropySource* es);
+      void add_entropy(const byte input[], u32bit length);
+
+      Randpool(BlockCipher* cipher, MessageAuthenticationCode* mac,
+               u32bit pool_blocks = 32,
+               u32bit iterations_before_reseed = 128);
+
+      ~Randpool();
+   private:
+      void update_buffer();
+      void mix_pool();
+
+      u32bit ITERATIONS_BEFORE_RESEED, POOL_BLOCKS;
+      BlockCipher* cipher;
+      MessageAuthenticationCode* mac;
+
+      std::vector<EntropySource*> entropy_sources;
+      SecureVector<byte> pool, buffer, counter;
+      bool seeded;
+   };
+
+}
+
+#endif