/* Derived from source code of TrueCrypt 7.1a, which is Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed by the TrueCrypt License 3.0. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2013-2017 IDRIX and are governed by the Apache License 2.0 the full text of which is contained in the file License.txt included in VeraCrypt binary and source code distribution packages. */ #include "Tcdefs.h" #include "Registry.h" #include BOOL ReadLocalMachineRegistryDword (wchar_t *subKey, wchar_t *name, DWORD *value) { HKEY hkey = 0; DWORD size = sizeof (*value); DWORD type; if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, KEY_READ, &hkey) != ERROR_SUCCESS) return FALSE; if (RegQueryValueEx (hkey, name, NULL, &type, (BYTE *) value, &size) != ERROR_SUCCESS) { RegCloseKey (hkey); return FALSE; } RegCloseKey (hkey); return type == REG_DWORD; } BOOL ReadLocalMachineRegistryMultiString (wchar_t *subKey, wchar_t *name, wchar_t *value, DWORD *size) { HKEY hkey = 0; DWORD type; if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, KEY_READ, &hkey) != ERROR_SUCCESS) return FALSE; if (RegQueryValueEx (hkey, name, NULL, &type, (BYTE *) value, size) != ERROR_SUCCESS) { RegCloseKey (hkey); return FALSE; } RegCloseKey (hkey); return type == REG_MULTI_SZ; } BOOL ReadLocalMachineRegistryString (const wchar_t *subKey, wchar_t *name, wchar_t *str, DWORD *size) { HKEY hkey = 0; DWORD type; if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, KEY_READ, &hkey) != ERROR_SUCCESS) return FALSE; if (RegQueryValueEx (hkey, name, NULL, &type, (BYTE *) str, size) != ERROR_SUCCESS) { RegCloseKey (hkey); return FALSE; } RegCloseKey (hkey); return type == REG_SZ; } BOOL ReadLocalMachineRegistryStringNonReflected (const wchar_t *subKey, wchar_t *name, wchar_t *str, DWORD *size, BOOL b32bitApp) { HKEY hkey = 0; DWORD type; if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, KEY_READ | (b32bitApp? KEY_WOW64_32KEY: KEY_WOW64_64KEY), &hkey) != ERROR_SUCCESS) return FALSE; if (RegQueryValueEx (hkey, name, NULL, &type, (BYTE *) str, size) != ERROR_SUCCESS) { RegCloseKey (hkey); return FALSE; } RegCloseKey (hkey); return type == REG_SZ; } int ReadRegistryInt (wchar_t *subKey, wchar_t *name, int defaultValue) { HKEY hkey = 0; DWORD value, size = sizeof (DWORD); if (RegOpenKeyEx (HKEY_CURRENT_USER, subKey, 0, KEY_READ, &hkey) != ERROR_SUCCESS) return defaultValue; if (RegQueryValueEx (hkey, name, 0, 0, (LPBYTE) &value, &size) != ERROR_SUCCESS) value = defaultValue; RegCloseKey (hkey); return value; } wchar_t *ReadRegistryString (wchar_t *subKey, wchar_t *name, wchar_t *defaultValue, wchar_t *str, int maxLen) { HKEY hkey = 0; wchar_t value[MAX_PATH*4]; DWORD size = sizeof (value); str[maxLen/2-1] = 0; StringCbCopyW (str, maxLen, defaultValue); ZeroMemory (value, sizeof value); if (RegOpenKeyEx (HKEY_CURRENT_USER, subKey, 0, KEY_READ, &hkey) == ERROR_SUCCESS) if (RegQueryValueEx (hkey, name, 0, 0, (LPBYTE) value, &size) == ERROR_SUCCESS) StringCbCopyW (str, maxLen,value); if (hkey) RegCloseKey (hkey); return str; } DWORD ReadRegistryBytes (wchar_t *path, wchar_t *name, char *value, int maxLen) { HKEY hkey = 0; DWORD size = maxLen; BOOL success = FALSE; if (RegOpenKeyEx (HKEY_CURRENT_USER, path, 0, KEY_READ, &hkey) != ERROR_SUCCESS) return 0; success = (RegQueryValueEx (hkey, name, 0, 0, (LPBYTE) value, &size) == ERROR_SUCCESS); RegCloseKey (hkey); return success ? size : 0; } void WriteRegistryInt (wchar_t *subKey, wchar_t *name, int value) { HKEY hkey = 0; DWORD disp; if (RegCreateKeyEx (HKEY_CURRENT_USER, subKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, &disp) != ERROR_SUCCESS) return; RegSetValueEx (hkey, name, 0, REG_DWORD, (BYTE *) &value, sizeof value); RegCloseKey (hkey); } BOOL WriteLocalMachineRegistryDword (wchar_t *subKey, wchar_t *name, DWORD value) { HKEY hkey = 0; DWORD disp; LONG status; if ((status = RegCreateKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, &disp)) != ERROR_SUCCESS) { SetLastError (status); return FALSE; } if ((status = RegSetValueEx (hkey, name, 0, REG_DWORD, (BYTE *) &value, sizeof value)) != ERROR_SUCCESS) { RegCloseKey (hkey); SetLastError (status); return FALSE; } RegCloseKey (hkey); return TRUE; } BOOL WriteLocalMachineRegistryMultiString (wchar_t *subKey, wchar_t *name, wchar_t *multiString, DWORD size) { HKEY hkey = 0; DWORD disp; LONG status; if ((status = RegCreateKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, &disp)) != ERROR_SUCCESS) { SetLastError (status); return FALSE; } if ((status = RegSetValueEx (hkey, name, 0, REG_MULTI_SZ, (BYTE *) multiString, size)) != ERROR_SUCCESS) { RegCloseKey (hkey); SetLastError (status); return FALSE; } RegCloseKey (hkey); return TRUE; } BOOL WriteLocalMachineRegistryString (wchar_t *subKey, wchar_t *name, wchar_t *str, BOOL expandable) { HKEY hkey = 0; DWORD disp; LONG status; if ((status = RegCreateKeyEx (HKEY_LOCAL_MACHINE, subKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, &disp)) != ERROR_SUCCESS) { SetLastError (status); return FALSE; } if ((status = RegSetValueEx (hkey, name, 0, expandable ? REG_EXPAND_SZ : REG_SZ, (BYTE *) str, (DWO
/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file) 
 and all other portions of this file are Copyright (c) 2013-2015 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#include "EncryptionMode.h"
#include "EncryptionModeXTS.h"
#include "EncryptionThreadPool.h"

namespace VeraCrypt
{
	EncryptionMode::EncryptionMode () : KeySet (false), SectorOffset (0)
	{
	}

	EncryptionMode::~EncryptionMode ()
	{
	}

	void EncryptionMode::DecryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const
	{
		EncryptionThreadPool::DoWork (EncryptionThreadPool::WorkType::DecryptDataUnits, this, data, sectorIndex, sectorCount, sectorSize);
	}

	void EncryptionMode::EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const
	{
		EncryptionThreadPool::DoWork (EncryptionThreadPool::WorkType::EncryptDataUnits, this, data, sectorIndex, sectorCount, sectorSize);
	}

	EncryptionModeList EncryptionMode::GetAvailableModes ()
	{
		EncryptionModeList l;

		l.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ()));

		return l;
	}

	void EncryptionMode::ValidateState () const
	{
		if (!KeySet || Ciphers.size() < 1)
			throw NotInitialized (SRC_POS);
	}

	void EncryptionMode::ValidateParameters (byte *data, uint64 length) const
	{
		if ((Ciphers.size() > 0 && (length % Ciphers.front()->GetBlockSize()) != 0))
			throw ParameterIncorrect (SRC_POS);
	}

	void EncryptionMode::ValidateParameters (byte *data, uint64 sectorCount, size_t sectorSize) const
	{
		if (sectorCount == 0 || sectorSize == 0 || (sectorSize % EncryptionDataUnitSize) != 0)
			throw ParameterIncorrect (SRC_POS);
	}
}