Revamp entropy polling

Remove Entropy_Accumulator, instead have entropy sources directly
add entropy to the RNG.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/tests/test_rng.h b/src/tests/test_rng.h
index c14ed7fb7..6c29b1d55 100644
--- a/src/tests/test_rng.h
+++ b/src/tests/test_rng.h
@@ -155,6 +155,31 @@ class Fixed_Output_Position_RNG : public Fixed_Output_RNG
       std::unique_ptr<RandomNumberGenerator> m_rng;
    };
 
+class SeedCapturing_RNG : public Botan::RandomNumberGenerator
+   {
+   public:
+      void randomize(uint8_t[], size_t) override
+         { throw Botan::Exception("SeedCapturing_RNG has no output"); }
+
+      void add_entropy(const byte input[], size_t len) override
+         {
+         m_samples++;
+         m_seed.insert(m_seed.end(), input, input + len);
+         }
+
+      void clear() override {}
+      bool is_seeded() const override { return false; }
+      std::string name() const override { return "SeedCapturing"; }
+
+      size_t samples() const { return m_samples; }
+
+      const std::vector<uint8_t>& seed_material() const { return m_seed; }
+
+   private:
+      std::vector<uint8_t> m_seed;
+      size_t m_samples = 0;
+   };
+
 }
 
 #endif