1 files changed, 0 insertions, 195 deletions
diff --git a/src/block/blowfish/blowfish.cpp b/src/block/blowfish/blowfish.cpp
deleted file mode 100644
index e93359141..000000000
--- a/src/block/blowfish/blowfish.cpp
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
-* Blowfish
-* (C) 1999-2011 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/blowfish.h>
-#include <botan/loadstor.h>
-
-namespace Botan {
-
-/*
-* Blowfish Encryption
-*/
-void Blowfish::encrypt_n(const byte in[], byte out[], size_t blocks) const
-   {
-   const u32bit* S1 = &S[0];
-   const u32bit* S2 = &S[256];
-   const u32bit* S3 = &S[512];
-   const u32bit* S4 = &S[768];
-
-   for(size_t i = 0; i != blocks; ++i)
-      {
-      u32bit L = load_be<u32bit>(in, 0);
-      u32bit R = load_be<u32bit>(in, 1);
-
-      for(size_t j = 0; j != 16; j += 2)
-         {
-         L ^= P[j];
-         R ^= ((S1[get_byte(0, L)]  + S2[get_byte(1, L)]) ^
-                S3[get_byte(2, L)]) + S4[get_byte(3, L)];
-
-         R ^= P[j+1];
-         L ^= ((S1[get_byte(0, R)]  + S2[get_byte(1, R)]) ^
-                S3[get_byte(2, R)]) + S4[get_byte(3, R)];
-         }
-
-      L ^= P[16]; R ^= P[17];
-
-      store_be(out, R, L);
-
-      in += BLOCK_SIZE;
-      out += BLOCK_SIZE;
-      }
-   }
-
-/*
-* Blowfish Decryption
-*/
-void Blowfish::decrypt_n(const byte in[], byte out[], size_t blocks) const
-   {
-   const u32bit* S1 = &S[0];
-   const u32bit* S2 = &S[256];
-   const u32bit* S3 = &S[512];
-   const u32bit* S4 = &S[768];
-
-   for(size_t i = 0; i != blocks; ++i)
-      {
-      u32bit L = load_be<u32bit>(in, 0);
-      u32bit R = load_be<u32bit>(in, 1);
-
-      for(size_t j = 17; j != 1; j -= 2)
-         {
-         L ^= P[j];
-         R ^= ((S1[get_byte(0, L)]  + S2[get_byte(1, L)]) ^
-                S3[get_byte(2, L)]) + S4[get_byte(3, L)];
-
-         R ^= P[j-1];
-         L ^= ((S1[get_byte(0, R)]  + S2[get_byte(1, R)]) ^
-                S3[get_byte(2, R)]) + S4[get_byte(3, R)];
-         }
-
-      L ^= P[1]; R ^= P[0];
-
-      store_be(out, R, L);
-
-      in += BLOCK_SIZE;
-      out += BLOCK_SIZE;
-      }
-   }
-
-/*
-* Blowfish Key Schedule
-*/
-void Blowfish::key_schedule(const byte key[], size_t length)
-   {
-   P.resize(18);
-   std::copy(P_INIT, P_INIT + 18, P.begin());
-
-   S.resize(1024);
-   std::copy(S_INIT, S_INIT + 1024, S.begin());
-
-   const byte null_salt[16] = { 0 };
-
-   key_expansion(key, length, null_salt);
-   }
-
-void Blowfish::key_expansion(const byte key[],
-                             size_t length,
-                             const byte salt[16])
-   {
-   for(size_t i = 0, j = 0; i != 18; ++i, j += 4)
-      P[i] ^= make_u32bit(key[(j  ) % length], key[(j+1) % length],
-                          key[(j+2) % length], key[(j+3) % length]);
-
-   u32bit L = 0, R = 0;
-   generate_sbox(P, L, R, salt, 0);
-   generate_sbox(S, L, R, salt, 2);
-   }
-
-/*
-* Modified key schedule used for bcrypt password hashing
-*/
-void Blowfish::eks_key_schedule(const byte key[], size_t length,
-                                const byte salt[16], size_t workfactor)
-   {
-   // Truncate longer passwords to the 56 byte limit Blowfish enforces
-   length = std::min<size_t>(length, 55);
-
-   if(workfactor == 0)
-      throw std::invalid_argument("Bcrypt work factor must be at least 1");
-
-   /*
-   * On a 2.8 GHz Core-i7, workfactor == 18 takes about 25 seconds to
-   * hash a password. This seems like a reasonable upper bound for the
-   * time being.
-   */
-   if(workfactor > 18)
-      throw std::invalid_argument("Requested Bcrypt work factor " +
-                                  std::to_string(workfactor) + " too large");
-
-   P.resize(18);
-   std::copy(P_INIT, P_INIT + 18, P.begin());
-
-   S.resize(1024);
-   std::copy(S_INIT, S_INIT + 1024, S.begin());
-
-   key_expansion(key, length, salt);
-
-   const byte null_salt[16] = { 0 };
-   const size_t rounds = 1 << workfactor;
-
-   for(size_t r = 0; r != rounds; ++r)
-      {
-      key_expansion(key, length, null_salt);
-      key_expansion(salt, 16, null_salt);
-      }
-   }
-
-/*
-* Generate one of the Sboxes
-*/
-void Blowfish::generate_sbox(secure_vector<u32bit>& box,
-                             u32bit& L, u32bit& R,
-                             const byte salt[16],
-                             size_t salt_off) const
-   {
-   const u32bit* S1 = &S[0];
-   const u32bit* S2 = &S[256];
-   const u32bit* S3 = &S[512];
-   const u32bit* S4 = &S[768];
-
-   for(size_t i = 0; i != box.size(); i += 2)
-      {
-      L ^= load_be<u32bit>(salt, (i + salt_off) % 4);
-      R ^= load_be<u32bit>(salt, (i + salt_off + 1) % 4);
-
-      for(size_t j = 0; j != 16; j += 2)
-         {
-         L ^= P[j];
-         R ^= ((S1[get_byte(0, L)]  + S2[get_byte(1, L)]) ^
-                S3[get_byte(2, L)]) + S4[get_byte(3, L)];
-
-         R ^= P[j+1];
-         L ^= ((S1[get_byte(0, R)]  + S2[get_byte(1, R)]) ^
-                S3[get_byte(2, R)]) + S4[get_byte(3, R)];
-         }
-
-      u32bit T = R; R = L ^ P[16]; L = T ^ P[17];
-      box[i] = L;
-      box[i+1] = R;
-      }
-   }
-
-/*
-* Clear memory of sensitive data
-*/
-void Blowfish::clear()
-   {
-   zap(P);
-   zap(S);
-   }
-
-}