1 files changed, 0 insertions, 198 deletions
diff --git a/src/hash/keccak/keccak.cpp b/src/hash/keccak/keccak.cpp
deleted file mode 100644
index e34c0fd43..000000000
--- a/src/hash/keccak/keccak.cpp
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
-* Keccak
-* (C) 2010 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/keccak.h>
-#include <botan/loadstor.h>
-#include <botan/parsing.h>
-#include <botan/exceptn.h>
-#include <botan/rotate.h>
-#include <botan/internal/xor_buf.h>
-
-namespace Botan {
-
-namespace {
-
-void keccak_f_1600(u64bit A[25])
-   {
-   static const u64bit RC[24] = {
-      0x0000000000000001, 0x0000000000008082, 0x800000000000808A,
-      0x8000000080008000, 0x000000000000808B, 0x0000000080000001,
-      0x8000000080008081, 0x8000000000008009, 0x000000000000008A,
-      0x0000000000000088, 0x0000000080008009, 0x000000008000000A,
-      0x000000008000808B, 0x800000000000008B, 0x8000000000008089,
-      0x8000000000008003, 0x8000000000008002, 0x8000000000000080,
-      0x000000000000800A, 0x800000008000000A, 0x8000000080008081,
-      0x8000000000008080, 0x0000000080000001, 0x8000000080008008
-   };
-
-   for(size_t i = 0; i != 24; ++i)
-      {
-      const u64bit C0 = A[0] ^ A[5] ^ A[10] ^ A[15] ^ A[20];
-      const u64bit C1 = A[1] ^ A[6] ^ A[11] ^ A[16] ^ A[21];
-      const u64bit C2 = A[2] ^ A[7] ^ A[12] ^ A[17] ^ A[22];
-      const u64bit C3 = A[3] ^ A[8] ^ A[13] ^ A[18] ^ A[23];
-      const u64bit C4 = A[4] ^ A[9] ^ A[14] ^ A[19] ^ A[24];
-
-      const u64bit D0 = rotate_left(C0, 1) ^ C3;
-      const u64bit D1 = rotate_left(C1, 1) ^ C4;
-      const u64bit D2 = rotate_left(C2, 1) ^ C0;
-      const u64bit D3 = rotate_left(C3, 1) ^ C1;
-      const u64bit D4 = rotate_left(C4, 1) ^ C2;
-
-      const u64bit B00 = A[ 0] ^ D1;
-      const u64bit B01 = rotate_left(A[ 6] ^ D2, 44);
-      const u64bit B02 = rotate_left(A[12] ^ D3, 43);
-      const u64bit B03 = rotate_left(A[18] ^ D4, 21);
-      const u64bit B04 = rotate_left(A[24] ^ D0, 14);
-      const u64bit B05 = rotate_left(A[ 3] ^ D4, 28);
-      const u64bit B06 = rotate_left(A[ 9] ^ D0, 20);
-      const u64bit B07 = rotate_left(A[10] ^ D1, 3);
-      const u64bit B08 = rotate_left(A[16] ^ D2, 45);
-      const u64bit B09 = rotate_left(A[22] ^ D3, 61);
-      const u64bit B10 = rotate_left(A[ 1] ^ D2, 1);
-      const u64bit B11 = rotate_left(A[ 7] ^ D3, 6);
-      const u64bit B12 = rotate_left(A[13] ^ D4, 25);
-      const u64bit B13 = rotate_left(A[19] ^ D0, 8);
-      const u64bit B14 = rotate_left(A[20] ^ D1, 18);
-      const u64bit B15 = rotate_left(A[ 4] ^ D0, 27);
-      const u64bit B16 = rotate_left(A[ 5] ^ D1, 36);
-      const u64bit B17 = rotate_left(A[11] ^ D2, 10);
-      const u64bit B18 = rotate_left(A[17] ^ D3, 15);
-      const u64bit B19 = rotate_left(A[23] ^ D4, 56);
-      const u64bit B20 = rotate_left(A[ 2] ^ D3, 62);
-      const u64bit B21 = rotate_left(A[ 8] ^ D4, 55);
-      const u64bit B22 = rotate_left(A[14] ^ D0, 39);
-      const u64bit B23 = rotate_left(A[15] ^ D1, 41);
-      const u64bit B24 = rotate_left(A[21] ^ D2, 2);
-
-      A[ 0] = B00 ^ (~B01 & B02);
-      A[ 1] = B01 ^ (~B02 & B03);
-      A[ 2] = B02 ^ (~B03 & B04);
-      A[ 3] = B03 ^ (~B04 & B00);
-      A[ 4] = B04 ^ (~B00 & B01);
-      A[ 5] = B05 ^ (~B06 & B07);
-      A[ 6] = B06 ^ (~B07 & B08);
-      A[ 7] = B07 ^ (~B08 & B09);
-      A[ 8] = B08 ^ (~B09 & B05);
-      A[ 9] = B09 ^ (~B05 & B06);
-      A[10] = B10 ^ (~B11 & B12);
-      A[11] = B11 ^ (~B12 & B13);
-      A[12] = B12 ^ (~B13 & B14);
-      A[13] = B13 ^ (~B14 & B10);
-      A[14] = B14 ^ (~B10 & B11);
-      A[15] = B15 ^ (~B16 & B17);
-      A[16] = B16 ^ (~B17 & B18);
-      A[17] = B17 ^ (~B18 & B19);
-      A[18] = B18 ^ (~B19 & B15);
-      A[19] = B19 ^ (~B15 & B16);
-      A[20] = B20 ^ (~B21 & B22);
-      A[21] = B21 ^ (~B22 & B23);
-      A[22] = B22 ^ (~B23 & B24);
-      A[23] = B23 ^ (~B24 & B20);
-      A[24] = B24 ^ (~B20 & B21);
-
-      A[0] ^= RC[i];
-      }
-   }
-
-}
-
-Keccak_1600::Keccak_1600(size_t output_bits) :
-   output_bits(output_bits),
-   bitrate(1600 - 2*output_bits),
-   S(25),
-   S_pos(0)
-   {
-   // We only support the parameters for the SHA-3 proposal
-
-   if(output_bits != 224 && output_bits != 256 &&
-      output_bits != 384 && output_bits != 512)
-      throw Invalid_Argument("Keccak_1600: Invalid output length " +
-                             std::to_string(output_bits));
-   }
-
-std::string Keccak_1600::name() const
-   {
-   return "Keccak-1600(" + std::to_string(output_bits) + ")";
-   }
-
-HashFunction* Keccak_1600::clone() const
-   {
-   return new Keccak_1600(output_bits);
-   }
-
-void Keccak_1600::clear()
-   {
-   zeroise(S);
-   S_pos = 0;
-   }
-
-void Keccak_1600::add_data(const byte input[], size_t length)
-   {
-   if(length == 0)
-      return;
-
-   while(length)
-      {
-      size_t to_take = std::min(length, bitrate / 8 - S_pos);
-
-      length -= to_take;
-
-      while(to_take && S_pos % 8)
-         {
-         S[S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (S_pos % 8));
-
-         ++S_pos;
-         ++input;
-         --to_take;
-         }
-
-      while(to_take && to_take % 8 == 0)
-         {
-         S[S_pos / 8] ^= load_le<u64bit>(input, 0);
-         S_pos += 8;
-         input += 8;
-         to_take -= 8;
-         }
-
-      while(to_take)
-         {
-         S[S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (S_pos % 8));
-
-         ++S_pos;
-         ++input;
-         --to_take;
-         }
-
-      if(S_pos == bitrate / 8)
-         {
-         keccak_f_1600(&S[0]);
-         S_pos = 0;
-         }
-      }
-   }
-
-void Keccak_1600::final_result(byte output[])
-   {
-   std::vector<byte> padding(bitrate / 8 - S_pos);
-
-   padding[0] = 0x01;
-   padding[padding.size()-1] |= 0x80;
-
-   add_data(&padding[0], padding.size());
-
-   /*
-   * We never have to run the permutation again because we only support
-   * limited output lengths
-   */
-   for(size_t i = 0; i != output_bits/8; ++i)
-      output[i] = get_byte(7 - (i % 8), S[i/8]);
-
-   clear();
-   }
-
-}