1 files changed, 0 insertions, 135 deletions
diff --git a/src/block/rc5/rc5.cpp b/src/block/rc5/rc5.cpp
deleted file mode 100644
index f370e6cfb..000000000
--- a/src/block/rc5/rc5.cpp
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
-* RC5
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/rc5.h>
-#include <botan/loadstor.h>
-#include <botan/rotate.h>
-#include <botan/parsing.h>
-#include <algorithm>
-
-namespace Botan {
-
-/*
-* RC5 Encryption
-*/
-void RC5::encrypt_n(const byte in[], byte out[], size_t blocks) const
-   {
-   for(size_t i = 0; i != blocks; ++i)
-      {
-      u32bit A = load_le<u32bit>(in, 0);
-      u32bit B = load_le<u32bit>(in, 1);
-
-      A += S[0]; B += S[1];
-      for(size_t j = 0; j != rounds; j += 4)
-         {
-         A = rotate_left(A ^ B, B % 32) + S[2*j+2];
-         B = rotate_left(B ^ A, A % 32) + S[2*j+3];
-
-         A = rotate_left(A ^ B, B % 32) + S[2*j+4];
-         B = rotate_left(B ^ A, A % 32) + S[2*j+5];
-
-         A = rotate_left(A ^ B, B % 32) + S[2*j+6];
-         B = rotate_left(B ^ A, A % 32) + S[2*j+7];
-
-         A = rotate_left(A ^ B, B % 32) + S[2*j+8];
-         B = rotate_left(B ^ A, A % 32) + S[2*j+9];
-         }
-
-      store_le(out, A, B);
-
-      in += BLOCK_SIZE;
-      out += BLOCK_SIZE;
-      }
-   }
-
-/*
-* RC5 Decryption
-*/
-void RC5::decrypt_n(const byte in[], byte out[], size_t blocks) const
-   {
-   for(size_t i = 0; i != blocks; ++i)
-      {
-      u32bit A = load_le<u32bit>(in, 0);
-      u32bit B = load_le<u32bit>(in, 1);
-
-      for(size_t j = rounds; j != 0; j -= 4)
-         {
-         B = rotate_right(B - S[2*j+1], A % 32) ^ A;
-         A = rotate_right(A - S[2*j  ], B % 32) ^ B;
-
-         B = rotate_right(B - S[2*j-1], A % 32) ^ A;
-         A = rotate_right(A - S[2*j-2], B % 32) ^ B;
-
-         B = rotate_right(B - S[2*j-3], A % 32) ^ A;
-         A = rotate_right(A - S[2*j-4], B % 32) ^ B;
-
-         B = rotate_right(B - S[2*j-5], A % 32) ^ A;
-         A = rotate_right(A - S[2*j-6], B % 32) ^ B;
-         }
-      B -= S[1]; A -= S[0];
-
-      store_le(out, A, B);
-
-      in += BLOCK_SIZE;
-      out += BLOCK_SIZE;
-      }
-   }
-
-/*
-* RC5 Key Schedule
-*/
-void RC5::key_schedule(const byte key[], size_t length)
-   {
-   S.resize(2*rounds + 2);
-
-   const size_t WORD_KEYLENGTH = (((length - 1) / 4) + 1);
-   const size_t MIX_ROUNDS     = 3 * std::max(WORD_KEYLENGTH, S.size());
-
-   S[0] = 0xB7E15163;
-   for(size_t i = 1; i != S.size(); ++i)
-      S[i] = S[i-1] + 0x9E3779B9;
-
-   secure_vector<u32bit> K(8);
-
-   for(s32bit i = length-1; i >= 0; --i)
-      K[i/4] = (K[i/4] << 8) + key[i];
-
-   u32bit A = 0, B = 0;
-
-   for(size_t i = 0; i != MIX_ROUNDS; ++i)
-      {
-      A = rotate_left(S[i % S.size()] + A + B, 3);
-      B = rotate_left(K[i % WORD_KEYLENGTH] + A + B, (A + B) % 32);
-      S[i % S.size()] = A;
-      K[i % WORD_KEYLENGTH] = B;
-      }
-   }
-
-void RC5::clear()
-   {
-   zap(S);
-   }
-
-/*
-* Return the name of this type
-*/
-std::string RC5::name() const
-   {
-   return "RC5(" + std::to_string(rounds) + ")";
-   }
-
-/*
-* RC5 Constructor
-*/
-RC5::RC5(size_t r) : rounds(r)
-   {
-   if(rounds < 8 || rounds > 32 || (rounds % 4 != 0))
-      throw Invalid_Argument("RC5: Invalid number of rounds " +
-                             std::to_string(rounds));
-   }
-
-}