aboutsummaryrefslogtreecommitdiffstats
path: root/src/rng/auto_rng/auto_rng.h
blob: 9a93fee8fa042e481179905744e1118f01358db4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/*
* Auto Seeded RNG
* (C) 2008 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/

#ifndef BOTAN_AUTO_SEEDING_RNG_H__
#define BOTAN_AUTO_SEEDING_RNG_H__

#include <botan/rng.h>
#include <botan/libstate.h>
#include <string>

namespace Botan {

class BOTAN_DLL AutoSeeded_RNG : public RandomNumberGenerator
   {
   public:
      void randomize(byte out[], u32bit len)
         { rng->randomize(out, len); }

      bool is_seeded() const { return rng->is_seeded(); }

      void clear() { rng->clear(); }

      std::string name() const { return rng->name(); }

      void reseed(u32bit poll_bits = 256) { rng->reseed(poll_bits); }

      void add_entropy_source(EntropySource* es)
         { rng->add_entropy_source(es); }

      void add_entropy(const byte in[], u32bit len)
         { rng->add_entropy(in, len); }

      AutoSeeded_RNG() { rng = &global_state().global_rng(); }
      ~AutoSeeded_RNG() { delete rng; }
   private:
      RandomNumberGenerator* rng;
   };

}

#endif