1 files changed, 0 insertions, 324 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/modes/cbc/cbc.cpp b/src/libs/3rdparty/botan/src/lib/modes/cbc/cbc.cpp
deleted file mode 100644
index c01fc43284..0000000000
--- a/src/libs/3rdparty/botan/src/lib/modes/cbc/cbc.cpp
+++ /dev/null
@@ -1,324 +0,0 @@
-/*
-* CBC Mode
-* (C) 1999-2007,2013,2017 Jack Lloyd
-* (C) 2016 Daniel Neus, Rohde & Schwarz Cybersecurity
-* (C) 2018 Ribose Inc
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/cbc.h>
-#include <botan/mode_pad.h>
-#include <botan/internal/rounding.h>
-
-namespace Botan {
-
-CBC_Mode::CBC_Mode(BlockCipher* cipher, BlockCipherModePaddingMethod* padding) :
-   m_cipher(cipher),
-   m_padding(padding),
-   m_block_size(cipher->block_size())
-   {
-   if(m_padding && !m_padding->valid_blocksize(m_block_size))
-      throw Invalid_Argument("Padding " + m_padding->name() +
-                             " cannot be used with " +
-                             cipher->name() + "/CBC");
-   }
-
-void CBC_Mode::clear()
-   {
-   m_cipher->clear();
-   reset();
-   }
-
-void CBC_Mode::reset()
-   {
-   m_state.clear();
-   }
-
-std::string CBC_Mode::name() const
-   {
-   if(m_padding)
-      return cipher().name() + "/CBC/" + padding().name();
-   else
-      return cipher().name() + "/CBC/CTS";
-   }
-
-size_t CBC_Mode::update_granularity() const
-   {
-   return cipher().parallel_bytes();
-   }
-
-Key_Length_Specification CBC_Mode::key_spec() const
-   {
-   return cipher().key_spec();
-   }
-
-size_t CBC_Mode::default_nonce_length() const
-   {
-   return block_size();
-   }
-
-bool CBC_Mode::valid_nonce_length(size_t n) const
-   {
-   return (n == 0 || n == block_size());
-   }
-
-void CBC_Mode::key_schedule(const uint8_t key[], size_t length)
-   {
-   m_cipher->set_key(key, length);
-   m_state.clear();
-   }
-
-void CBC_Mode::start_msg(const uint8_t nonce[], size_t nonce_len)
-   {
-   if(!valid_nonce_length(nonce_len))
-      throw Invalid_IV_Length(name(), nonce_len);
-
-   /*
-   * A nonce of zero length means carry the last ciphertext value over
-   * as the new IV, as unfortunately some protocols require this. If
-   * this is the first message then we use an IV of all zeros.
-   */
-   if(nonce_len)
-      m_state.assign(nonce, nonce + nonce_len);
-   else if(m_state.empty())
-      m_state.resize(m_cipher->block_size());
-   // else leave the state alone
-   }
-
-size_t CBC_Encryption::minimum_final_size() const
-   {
-   return 0;
-   }
-
-size_t CBC_Encryption::output_length(size_t input_length) const
-   {
-   if(input_length == 0)
-      return block_size();
-   else
-      return round_up(input_length, block_size());
-   }
-
-size_t CBC_Encryption::process(uint8_t buf[], size_t sz)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-   const size_t BS = block_size();
-
-   BOTAN_ASSERT(sz % BS == 0, "CBC input is full blocks");
-   const size_t blocks = sz / BS;
-
-   if(blocks > 0)
-      {
-      xor_buf(&buf[0], state_ptr(), BS);
-      cipher().encrypt(&buf[0]);
-
-      for(size_t i = 1; i != blocks; ++i)
-         {
-         xor_buf(&buf[BS*i], &buf[BS*(i-1)], BS);
-         cipher().encrypt(&buf[BS*i]);
-         }
-
-      state().assign(&buf[BS*(blocks-1)], &buf[BS*blocks]);
-      }
-
-   return sz;
-   }
-
-void CBC_Encryption::finish(secure_vector<uint8_t>& buffer, size_t offset)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-   BOTAN_ASSERT(buffer.size() >= offset, "Offset is sane");
-
-   const size_t BS = block_size();
-
-   const size_t bytes_in_final_block = (buffer.size()-offset) % BS;
-
-   padding().add_padding(buffer, bytes_in_final_block, BS);
-
-   if((buffer.size()-offset) % BS)
-      throw Exception("Did not pad to full block size in " + name());
-
-   update(buffer, offset);
-   }
-
-bool CTS_Encryption::valid_nonce_length(size_t n) const
-   {
-   return (n == block_size());
-   }
-
-size_t CTS_Encryption::minimum_final_size() const
-   {
-   return block_size() + 1;
-   }
-
-size_t CTS_Encryption::output_length(size_t input_length) const
-   {
-   return input_length; // no ciphertext expansion in CTS
-   }
-
-void CTS_Encryption::finish(secure_vector<uint8_t>& buffer, size_t offset)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-   BOTAN_ASSERT(buffer.size() >= offset, "Offset is sane");
-   uint8_t* buf = buffer.data() + offset;
-   const size_t sz = buffer.size() - offset;
-
-   const size_t BS = block_size();
-
-   if(sz < BS + 1)
-      throw Encoding_Error(name() + ": insufficient data to encrypt");
-
-   if(sz % BS == 0)
-      {
-      update(buffer, offset);
-
-      // swap last two blocks
-      for(size_t i = 0; i != BS; ++i)
-         std::swap(buffer[buffer.size()-BS+i], buffer[buffer.size()-2*BS+i]);
-      }
-   else
-      {
-      const size_t full_blocks = ((sz / BS) - 1) * BS;
-      const size_t final_bytes = sz - full_blocks;
-      BOTAN_ASSERT(final_bytes > BS && final_bytes < 2*BS, "Left over size in expected range");
-
-      secure_vector<uint8_t> last(buf + full_blocks, buf + full_blocks + final_bytes);
-      buffer.resize(full_blocks + offset);
-      update(buffer, offset);
-
-      xor_buf(last.data(), state_ptr(), BS);
-      cipher().encrypt(last.data());
-
-      for(size_t i = 0; i != final_bytes - BS; ++i)
-         {
-         last[i] ^= last[i + BS];
-         last[i + BS] ^= last[i];
-         }
-
-      cipher().encrypt(last.data());
-
-      buffer += last;
-      }
-   }
-
-size_t CBC_Decryption::output_length(size_t input_length) const
-   {
-   return input_length; // precise for CTS, worst case otherwise
-   }
-
-size_t CBC_Decryption::minimum_final_size() const
-   {
-   return block_size();
-   }
-
-size_t CBC_Decryption::process(uint8_t buf[], size_t sz)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-
-   const size_t BS = block_size();
-
-   BOTAN_ASSERT(sz % BS == 0, "Input is full blocks");
-   size_t blocks = sz / BS;
-
-   while(blocks)
-      {
-      const size_t to_proc = std::min(BS * blocks, m_tempbuf.size());
-
-      cipher().decrypt_n(buf, m_tempbuf.data(), to_proc / BS);
-
-      xor_buf(m_tempbuf.data(), state_ptr(), BS);
-      xor_buf(&m_tempbuf[BS], buf, to_proc - BS);
-      copy_mem(state_ptr(), buf + (to_proc - BS), BS);
-
-      copy_mem(buf, m_tempbuf.data(), to_proc);
-
-      buf += to_proc;
-      blocks -= to_proc / BS;
-      }
-
-   return sz;
-   }
-
-void CBC_Decryption::finish(secure_vector<uint8_t>& buffer, size_t offset)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-   BOTAN_ASSERT(buffer.size() >= offset, "Offset is sane");
-   const size_t sz = buffer.size() - offset;
-
-   const size_t BS = block_size();
-
-   if(sz == 0 || sz % BS)
-      throw Decoding_Error(name() + ": Ciphertext not a multiple of block size");
-
-   update(buffer, offset);
-
-   const size_t pad_bytes = BS - padding().unpad(&buffer[buffer.size()-BS], BS);
-   buffer.resize(buffer.size() - pad_bytes); // remove padding
-   if(pad_bytes == 0 && padding().name() != "NoPadding")
-      {
-      throw Decoding_Error(name());
-      }
-   }
-
-void CBC_Decryption::reset()
-   {
-   CBC_Mode::reset();
-   zeroise(m_tempbuf);
-   }
-
-bool CTS_Decryption::valid_nonce_length(size_t n) const
-   {
-   return (n == block_size());
-   }
-
-size_t CTS_Decryption::minimum_final_size() const
-   {
-   return block_size() + 1;
-   }
-
-void CTS_Decryption::finish(secure_vector<uint8_t>& buffer, size_t offset)
-   {
-   BOTAN_STATE_CHECK(state().empty() == false);
-   BOTAN_ASSERT(buffer.size() >= offset, "Offset is sane");
-   const size_t sz = buffer.size() - offset;
-   uint8_t* buf = buffer.data() + offset;
-
-   const size_t BS = block_size();
-
-   if(sz < BS + 1)
-      throw Encoding_Error(name() + ": insufficient data to decrypt");
-
-   if(sz % BS == 0)
-      {
-      // swap last two blocks
-
-      for(size_t i = 0; i != BS; ++i)
-         std::swap(buffer[buffer.size()-BS+i], buffer[buffer.size()-2*BS+i]);
-
-      update(buffer, offset);
-      }
-   else
-      {
-      const size_t full_blocks = ((sz / BS) - 1) * BS;
-      const size_t final_bytes = sz - full_blocks;
-      BOTAN_ASSERT(final_bytes > BS && final_bytes < 2*BS, "Left over size in expected range");
-
-      secure_vector<uint8_t> last(buf + full_blocks, buf + full_blocks + final_bytes);
-      buffer.resize(full_blocks + offset);
-      update(buffer, offset);
-
-      cipher().decrypt(last.data());
-
-      xor_buf(last.data(), &last[BS], final_bytes - BS);
-
-      for(size_t i = 0; i != final_bytes - BS; ++i)
-         std::swap(last[i], last[i + BS]);
-
-      cipher().decrypt(last.data());
-      xor_buf(last.data(), state_ptr(), BS);
-
-      buffer += last;
-      }
-   }
-
-}