1 files changed, 0 insertions, 146 deletions
diff --git a/src/rng/x931_rng/x931_rng.cpp b/src/rng/x931_rng/x931_rng.cpp
deleted file mode 100644
index b36f87106..000000000
--- a/src/rng/x931_rng/x931_rng.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
-* ANSI X9.31 RNG
-* (C) 1999-2009 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/x931_rng.h>
-#include <botan/internal/xor_buf.h>
-#include <algorithm>
-
-namespace Botan {
-
-/*
-* Generate a buffer of random bytes
-*/
-void ANSI_X931_RNG::randomize(byte out[], size_t length)
-   {
-   if(!is_seeded())
-      throw PRNG_Unseeded(name());
-
-   while(length)
-      {
-      if(position == R.size())
-         update_buffer();
-
-      const size_t copied = std::min<size_t>(length, R.size() - position);
-
-      copy_mem(out, &R[position], copied);
-      out += copied;
-      length -= copied;
-      position += copied;
-      }
-   }
-
-/*
-* Refill the internal state
-*/
-void ANSI_X931_RNG::update_buffer()
-   {
-   const size_t BLOCK_SIZE = cipher->block_size();
-
-   secure_vector<byte> DT = prng->random_vec(BLOCK_SIZE);
-   cipher->encrypt(DT);
-
-   xor_buf(&R[0], &V[0], &DT[0], BLOCK_SIZE);
-   cipher->encrypt(R);
-
-   xor_buf(&V[0], &R[0], &DT[0], BLOCK_SIZE);
-   cipher->encrypt(V);
-
-   position = 0;
-   }
-
-/*
-* Reset V and the cipher key with new values
-*/
-void ANSI_X931_RNG::rekey()
-   {
-   const size_t BLOCK_SIZE = cipher->block_size();
-
-   if(prng->is_seeded())
-      {
-      cipher->set_key(prng->random_vec(cipher->maximum_keylength()));
-
-      if(V.size() != BLOCK_SIZE)
-         V.resize(BLOCK_SIZE);
-      prng->randomize(&V[0], V.size());
-
-      update_buffer();
-      }
-   }
-
-/*
-* Reseed the internal state
-*/
-void ANSI_X931_RNG::reseed(size_t poll_bits)
-   {
-   prng->reseed(poll_bits);
-   rekey();
-   }
-
-/*
-* Add some entropy to the underlying PRNG
-*/
-void ANSI_X931_RNG::add_entropy(const byte input[], size_t length)
-   {
-   prng->add_entropy(input, length);
-   rekey();
-   }
-
-/*
-* Check if the the PRNG is seeded
-*/
-bool ANSI_X931_RNG::is_seeded() const
-   {
-   return (V.size() > 0);
-   }
-
-/*
-* Clear memory of sensitive data
-*/
-void ANSI_X931_RNG::clear()
-   {
-   cipher->clear();
-   prng->clear();
-   zeroise(R);
-   V.clear();
-
-   position = 0;
-   }
-
-/*
-* Return the name of this type
-*/
-std::string ANSI_X931_RNG::name() const
-   {
-   return "X9.31(" + cipher->name() + ")";
-   }
-
-/*
-* ANSI X931 RNG Constructor
-*/
-ANSI_X931_RNG::ANSI_X931_RNG(BlockCipher* cipher_in,
-                             RandomNumberGenerator* prng_in)
-   {
-   if(!prng_in || !cipher_in)
-      throw Invalid_Argument("ANSI_X931_RNG constructor: NULL arguments");
-
-   cipher = cipher_in;
-   prng = prng_in;
-
-   R.resize(cipher->block_size());
-   position = 0;
-   }
-
-/*
-* ANSI X931 RNG Destructor
-*/
-ANSI_X931_RNG::~ANSI_X931_RNG()
-   {
-   delete cipher;
-   delete prng;
-   }
-
-}