1 files changed, 0 insertions, 146 deletions
diff --git a/src/modes/ctr/ctr.cpp b/src/modes/ctr/ctr.cpp
deleted file mode 100644
index d458d7848..000000000
--- a/src/modes/ctr/ctr.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
-* CTR Mode
-* (C) 1999-2009 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/ctr.h>
-#include <botan/xor_buf.h>
-#include <algorithm>
-
-namespace Botan {
-
-namespace {
-
-const u32bit PARALLEL_BLOCKS = BOTAN_PARALLEL_BLOCKS_CTR;
-
-}
-
-/*
-* CTR-BE Constructor
-*/
-CTR_BE::CTR_BE(BlockCipher* ciph) : cipher(ciph)
-   {
-   position = 0;
-
-   counter.create(ciph->BLOCK_SIZE * PARALLEL_BLOCKS);
-   enc_buffer.create(ciph->BLOCK_SIZE * PARALLEL_BLOCKS);
-   }
-
-/*
-* CTR-BE Constructor
-*/
-CTR_BE::CTR_BE(BlockCipher* ciph, const SymmetricKey& key,
-               const InitializationVector& iv) :
-   cipher(ciph)
-   {
-   position = 0;
-
-   counter.create(ciph->BLOCK_SIZE * PARALLEL_BLOCKS);
-   enc_buffer.create(ciph->BLOCK_SIZE * PARALLEL_BLOCKS);
-
-   cipher->set_key(key);
-   set_iv(iv);
-   }
-
-/*
-* CTR_BE Destructor
-*/
-CTR_BE::~CTR_BE()
-   {
-   delete cipher;
-   }
-
-/*
-* Return the name of this type
-*/
-std::string CTR_BE::name() const
-   {
-   return ("CTR-BE/" + cipher->name());
-   }
-
-/*
-* Set CTR-BE IV
-*/
-void CTR_BE::set_iv(const InitializationVector& iv)
-   {
-   const u32bit BLOCK_SIZE = cipher->BLOCK_SIZE;
-
-   if(iv.length() != BLOCK_SIZE)
-      throw Invalid_IV_Length(name(), iv.length());
-
-   enc_buffer.clear();
-   position = 0;
-
-   counter.copy(0, iv.begin(), iv.length());
-
-   for(u32bit i = 1; i != PARALLEL_BLOCKS; ++i)
-      {
-      counter.copy(i*BLOCK_SIZE,
-                   counter.begin() + (i-1)*BLOCK_SIZE, BLOCK_SIZE);
-
-      for(s32bit j = BLOCK_SIZE - 1; j >= 0; --j)
-         if(++counter[i*BLOCK_SIZE+j])
-            break;
-      }
-
-   cipher->encrypt_n(counter, enc_buffer, PARALLEL_BLOCKS);
-   }
-
-/*
-* CTR-BE Encryption/Decryption
-*/
-void CTR_BE::write(const byte input[], u32bit length)
-   {
-   u32bit copied = std::min(enc_buffer.size() - position, length);
-   xor_buf(enc_buffer + position, input, copied);
-   send(enc_buffer + position, copied);
-   input += copied;
-   length -= copied;
-   position += copied;
-
-   if(position == enc_buffer.size())
-      increment_counter();
-
-   while(length >= enc_buffer.size())
-      {
-      xor_buf(enc_buffer, input, enc_buffer.size());
-      send(enc_buffer, enc_buffer.size());
-
-      input += enc_buffer.size();
-      length -= enc_buffer.size();
-      increment_counter();
-      }
-
-   xor_buf(enc_buffer + position, input, length);
-   send(enc_buffer + position, length);
-   position += length;
-   }
-
-/*
-* Increment the counter and update the buffer
-*/
-void CTR_BE::increment_counter()
-   {
-   for(u32bit i = 0; i != PARALLEL_BLOCKS; ++i)
-      {
-      byte* this_ctr = counter + i*cipher->BLOCK_SIZE;
-
-      byte last_byte = this_ctr[cipher->BLOCK_SIZE-1];
-      last_byte += PARALLEL_BLOCKS;
-
-      if(this_ctr[cipher->BLOCK_SIZE-1] > last_byte)
-         for(s32bit j = cipher->BLOCK_SIZE - 2; j >= 0; --j)
-            if(++this_ctr[j])
-               break;
-
-      this_ctr[cipher->BLOCK_SIZE-1] = last_byte;
-      }
-
-   cipher->encrypt_n(counter, enc_buffer, PARALLEL_BLOCKS);
-
-   position = 0;
-   }
-
-}