aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/rng/auto_rng/auto_rng.h
blob: a7b28af92d26831b05fa61ce37e508da74d938b2 (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
/*
* Auto Seeded RNG
* (C) 2008 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#ifndef BOTAN_AUTO_SEEDING_RNG_H__
#define BOTAN_AUTO_SEEDING_RNG_H__

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

namespace Botan {

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

      bool is_seeded() const override { return m_rng->is_seeded(); }

      void clear() override { m_rng->clear(); }

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

      void reseed(size_t poll_bits = 256) override { m_rng->reseed(poll_bits); }

      void add_entropy(const byte in[], size_t len) override
         { m_rng->add_entropy(in, len); }

      AutoSeeded_RNG() : m_rng(RandomNumberGenerator::make_rng()) {}
   private:
      std::unique_ptr<RandomNumberGenerator> m_rng;
   };

}

#endif