VeraCrypt  1.25.9
About: VeraCrypt is a free disk encryption software (based on TrueCrypt).
  Fossies Dox: VeraCrypt_1.25.9_Source.tar.bz2  ("unofficial" and yet experimental doxygen-generated source code documentation)  

VeraCrypt Documentation

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This archive contains the source code of VeraCrypt. It is based on original TrueCrypt 7.1a with security enhancements and modifications.


You may use the source code contained in this archive only if you accept and agree to the license terms contained in the file 'License.txt', which is included in this archive.

Note that the license specifies, for example, that a derived work must not be called 'TrueCrypt' or 'VeraCrypt'


I. Windows Requirements for Building VeraCrypt for Windows. Instructions for Building VeraCrypt for Windows. Instructions for Signing and Packaging VeraCrypt for Windows.

II. Linux and Mac OS X Requirements for Building VeraCrypt for Linux and Mac OS X. Instructions for Building VeraCrypt for Linux and Mac OS X. Mac OS X specifics


IV. Third-Party Developers (Contributors)

V. Legal Information

VI. Further Information

I. Windows

Requirements for Building VeraCrypt for Windows:

  • Microsoft Visual C++ 2010 SP1 (Professional Edition or compatible)
  • Microsoft Visual C++ 2019
  • Microsoft Visual C++ 1.52 (available from MSDN Subscriber Downloads)
  • Microsoft Windows SDK for Windows 7.1 (configured for Visual C++ 2010)
  • Microsoft Windows SDK for Windows 8.1 (needed for SHA-256 code signing)
  • Microsoft Windows Driver Kit 7.1.0 (build 7600.16385.1)
  • NASM assembler 2.08 or compatible
  • YASM 1.3.0 or newer.
  • gzip compressor
  • upx packer (available at


The 64-bit editions of Windows Vista and later versions of Windows, and in some cases (e.g. playback of HD DVD content) also the 32-bit editions, do not allow the VeraCrypt driver to run without an appropriate digital signature. Therefore, all .sys files in official VeraCrypt binary packages are digitally signed with the digital certificate of the IDRIX, which was issued by GlobalSign certification authority. At the end of each official .exe and .sys file, there are embedded digital signatures and all related certificates (i.e. all certificates in the relevant certification chain, such as the certification authority certificates, CA-MS cross-certificate, and the IDRIX certificate). Keep this in mind if you compile VeraCrypt and compare your binaries with the official binaries. If your binaries are unsigned, the sizes of the official binaries will usually be approximately 10 KiB greater than sizes of your binaries (there may be further differences if you use a different version of the compiler, or if you install a different or no service pack for Visual Studio, or different hotfixes for it, or if you use different versions of the required SDKs).

Instructions for Building VeraCrypt for Windows:

  1. Create an environment variable 'MSVC16_ROOT' pointing to the folder 'MSVC15' extracted from the Visual C++ 1.52 self-extracting package.

    Note: The 16-bit installer MSVC15\SETUP.EXE cannot be run on 64-bit Windows, but it is actually not necessary to run it. You only need to extract the folder 'MSVC15', which contains the 32-bit binaries required to build the VeraCrypt Boot Loader.

  2. If you have installed the Windows Driver Development Kit in another directory than '%SYSTEMDRIVE%\WinDDK', create an environment variable 'WINDDK_ROOT' pointing to the DDK installation directory.

  3. Open the solution file 'VeraCrypt.sln' in Microsoft Visual Studio 2010.

  4. Select 'All' as the active solution configuration and WIN32 as the active platform.

  5. Build the solution.

  6. Select x64 as the active platform and build the solution again.

  7. Open the solution file 'VeraCrypt_vs2019.sln' in Microsoft Visual Studio 2019.

  8. Select 'All' as the active solution configuration and ARM64 as the active platform.

  9. Build the solution.

  10. If successful, there should be newly built VeraCrypt binaries in the 'Release\Setup Files' folder.

Instructions for Signing and Packaging VeraCrypt for Windows:

First, create an environment variable 'WSDK81' pointing to the Windows SDK for Windows 8.1 installation directory. The folder "Signing" contains a batch file (sign.bat) that will sign all VeraCrypt components using a code signing certificate present on the certificate store and also build the final installation setup and MSI package. The batch file suppose that the code signing certificate is issued by GlobalSign. This is the case for IDRIX's certificate. If yours is issued by another CA, then you should put its intermediate certificates in the "Signing" folder and modify sign.bat accordingly.

In order to generate MSI packages, WiX Toolset v3.11 must be installed.

VeraCrypt EFI Boot Loader:

VeraCrypt source code contains pre-built EFI binaries under src\Boot\EFI. The source code of VeraCrypt EFI Boot Loader is licensed under LGPL and it is available at For build instructions, please refer to the file src\Boot\EFI\Readme.txt.

II. Linux and Mac OS X

Requirements for Building VeraCrypt for Linux and Mac OS X:

Instructions for Building VeraCrypt for Linux and Mac OS X:

  1. Change the current directory to the root of the VeraCrypt source code.

  2. If you have no wxWidgets shared library installed, run the following command to configure the wxWidgets static library for VeraCrypt and to build it:

    $ make WXSTATIC=1 WX_ROOT=/usr/src/wxWidgets wxbuild

    The variable WX_ROOT must point to the location of the source code of the wxWidgets library. Output files will be placed in the './wxrelease/' directory.

  3. To build VeraCrypt, run the following command:

    $ make

    or if you have no wxWidgets shared library installed:

    $ make WXSTATIC=1
  4. If successful, the VeraCrypt executable should be located in the directory 'Main'.

By default, a universal executable supporting both graphical and text user interface (through the switch --text) is built. On Linux, a console-only executable, which requires no GUI library, can be built using the 'NOGUI' parameter:

$ make NOGUI=1 WXSTATIC=1 WX_ROOT=/usr/src/wxWidgets wxbuild

On MacOSX, building a console-only executable is not supported.

Mac OS X specifics:

Under MacOSX, the SDK for OSX 11.3 is used by default. To use another version of the SDK (i.e. 10.15), you can export the environment variable VC_OSX_TARGET:

$ export VC_OSX_TARGET=10.15

Before building under MacOSX, pkg-config must be installed if not yet available. Get it from and compile using the following commands :

$ ./configure --with-internal-glib
$ make
$ sudo make install

After making sure pkg-config is available, download and install OSXFuse from

The script available under "src/Build" performs the full build of VeraCrypt including the creation of the installer pkg. It expects to find the wxWidgets 3.1.2 sources at the same level as where you put VeraCrypt sources (i.e. if "src" path is "/Users/joe/Projects/VeraCrypt/src" then wxWidgets should be at "/Users/joe/Projects/wxWidgets-3.1.2")

The build process uses Code Signing certificates whose ID is specified in src/Main/Main.make (look for lines containing "Developer ID Application" and "Developer ID Installer"). You'll have to modify these lines to put the ID of your Code Signing certificates or comment them if you don't have one.

Because of incompatibility issues with OSXFUSE, the SDK 10.9 generates a VeraCrypt binary that has issues communicating with the OSXFUSE kernel extension. Thus, we recommend using a different OSX SDK version for building VeraCrypt.


FreeBSD is supported starting from version 11. The build requirements and instructions are the same as Linux except that gmake should be used instead of make.

IV. Third-Party Developers (Contributors)

If you intend to implement a feature, please contact us first to make sure:

  1. That the feature has not been implemented (we may have already implemented it, but haven't released the code yet).
  2. That the feature is acceptable.
  3. Whether we need help of third-party developers with implementing the feature.

Information on how to contact us can be found at:

V. Legal Information

This software as a whole:
Copyright (c) 2013-2022 IDRIX. All rights reserved.

Portions of this software:
Copyright (c) 2013-2022 IDRIX. All rights reserved.
Copyright (c) 2003-2012 TrueCrypt Developers Association. All rights reserved.
Copyright (c) 1998-2000 Paul Le Roux. All rights reserved.
Copyright (c) 1998-2008 Brian Gladman, Worcester, UK. All rights reserved.
Copyright (c) 1995-2017 Jean-loup Gailly and Mark Adler.
Copyright (c) 2016 Disk Cryptography Services for EFI (DCS), Alex Kolotnikov
Copyright (c) 1999-2017 Dieter Baron and Thomas Klausner.
Copyright (c) 2013, Alexey Degtyarev. All rights reserved.
Copyright (c) 1999-2016 Jack Lloyd. All rights reserved.
Copyright (c) 2013-2019 Stephan Mueller Copyright (c) 1999-2021 Igor Pavlov

For more information, please see the legal notices attached to parts of the source code.

Trademark Information

Any trademarks contained in the source code, binaries, and/or in the documentation, are the sole property of their respective owners.

VI. Further Information