1 files changed, 0 insertions, 164 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Crypto/ZipStrong.cpp b/src/libs/7zip/win/CPP/7zip/Crypto/ZipStrong.cpp
deleted file mode 100644
index 1554b3489..000000000
--- a/src/libs/7zip/win/CPP/7zip/Crypto/ZipStrong.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-// Crypto/ZipStrong.cpp
-
-#include "StdAfx.h"
-
-#include "../../../C/7zCrc.h"
-#include "../../../C/CpuArch.h"
-
-#include "../Common/StreamUtils.h"
-
-#include "MyAes.h"
-#include "Sha1.h"
-#include "ZipStrong.h"
-
-namespace NCrypto {
-namespace NZipStrong {
-
-static const UInt16 kAES128 = 0x660E;
-
-// DeriveKey* function is similar to CryptDeriveKey() from Windows.
-// But MSDN tells that we need such scheme only if
-// "the required key length is longer than the hash value"
-// but ZipStrong uses it always.
-
-static void DeriveKey2(const Byte *digest, Byte c, Byte *dest)
-{
-  Byte buf[64];
-  memset(buf, c, 64);
-  for (unsigned i = 0; i < NSha1::kDigestSize; i++)
-    buf[i] ^= digest[i];
-  NSha1::CContext sha;
-  sha.Init();
-  sha.Update(buf, 64);
-  sha.Final(dest);
-}
- 
-static void DeriveKey(NSha1::CContext &sha, Byte *key)
-{
-  Byte digest[NSha1::kDigestSize];
-  sha.Final(digest);
-  Byte temp[NSha1::kDigestSize * 2];
-  DeriveKey2(digest, 0x36, temp);
-  DeriveKey2(digest, 0x5C, temp + NSha1::kDigestSize);
-  memcpy(key, temp, 32);
-}
-
-void CKeyInfo::SetPassword(const Byte *data, UInt32 size)
-{
-  NSha1::CContext sha;
-  sha.Init();
-  sha.Update(data, size);
-  DeriveKey(sha, MasterKey);
-}
-
-STDMETHODIMP CBaseCoder::CryptoSetPassword(const Byte *data, UInt32 size)
-{
-  _key.SetPassword(data, size);
-  return S_OK;
-}
-
-HRESULT CDecoder::ReadHeader(ISequentialInStream *inStream, UInt32 /* crc */, UInt64 /* unpackSize */)
-{
-  Byte temp[4];
-  RINOK(ReadStream_FALSE(inStream, temp, 2));
-  _ivSize = GetUi16(temp);
-  if (_ivSize == 0)
-  {
-    return E_NOTIMPL;
-    /*
-    SetUi32(_iv, crc);
-    for (int i = 0; i < 8; i++)
-     _iv[4 + i] = (Byte)(unpackSize >> (8 * i));
-    SetUi32(_iv + 12, 0);
-    */
-  }
-  else if (_ivSize == 16)
-  {
-    RINOK(ReadStream_FALSE(inStream, _iv, _ivSize));
-  }
-  else
-    return E_NOTIMPL;
-  RINOK(ReadStream_FALSE(inStream, temp, 4));
-  _remSize = GetUi32(temp);
-  const UInt32 kAlign = 16;
-  if (_remSize < 16 || _remSize > (1 << 18))
-    return E_NOTIMPL;
-  if (_remSize + kAlign > _buf.GetCapacity())
-  {
-    _buf.Free();
-    _buf.SetCapacity(_remSize + kAlign);
-    _bufAligned = (Byte *)((ptrdiff_t)((Byte *)_buf + kAlign - 1) & ~(ptrdiff_t)(kAlign - 1));
-  }
-  return ReadStream_FALSE(inStream, _bufAligned, _remSize);
-}
-
-HRESULT CDecoder::CheckPassword(bool &passwOK)
-{
-  passwOK = false;
-  if (_remSize < 16)
-    return E_NOTIMPL;
-  Byte *p = _bufAligned;
-  UInt16 format = GetUi16(p);
-  if (format != 3)
-    return E_NOTIMPL;
-  UInt16 algId = GetUi16(p + 2);
-  if (algId < kAES128)
-    return E_NOTIMPL;
-  algId -= kAES128;
-  if (algId > 2)
-    return E_NOTIMPL;
-  UInt16 bitLen = GetUi16(p + 4);
-  UInt16 flags = GetUi16(p + 6);
-  if (algId * 64 + 128 != bitLen)
-    return E_NOTIMPL;
-  _key.KeySize = 16 + algId * 8;
-  if ((flags & 1) == 0)
-    return E_NOTIMPL;
-  if ((flags & 0x4000) != 0)
-  {
-    // Use 3DES
-    return E_NOTIMPL;
-  }
-
-  UInt32 rdSize = GetUi16(p + 8);
-  if ((rdSize & 0xF) != 0 || rdSize + 16 > _remSize)
-    return E_NOTIMPL;
-  memmove(p, p + 10, rdSize);
-  Byte *validData = p + rdSize + 16;
-  if (GetUi32(validData - 6) != 0) // reserved
-    return E_NOTIMPL;
-  UInt32 validSize = GetUi16(validData - 2);
-  if ((validSize & 0xF) != 0 || 16 + rdSize + validSize != _remSize)
-    return E_NOTIMPL;
-
-
-  {
-    RINOK(SetKey(_key.MasterKey, _key.KeySize));
-    RINOK(SetInitVector(_iv, 16));
-    Init();
-    Filter(p, rdSize);
-  }
-
-  Byte fileKey[32];
-  NSha1::CContext sha;
-  sha.Init();
-  sha.Update(_iv, 16);
-  sha.Update(p, rdSize - 16); // we don't use last 16 bytes (PAD bytes)
-  DeriveKey(sha, fileKey);
-  
-  RINOK(SetKey(fileKey, _key.KeySize));
-  RINOK(SetInitVector(_iv, 16));
-  Init();
-  Filter(validData, validSize);
-
-  if (validSize < 4)
-    return E_NOTIMPL;
-  validSize -= 4;
-  if (GetUi32(validData + validSize) != CrcCalc(validData, validSize))
-    return S_OK;
-  passwOK = true;
-  Init();
-  return S_OK;
-}
-
-}}