/* 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. */ #ifndef TC_HEADER_Main_TextUserInterface #define TC_HEADER_Main_TextUserInterface #include "System.h" #include "Main.h" #include "UserInterface.h" namespace VeraCrypt { class TextUserInterface : public UserInterface { public: TextUserInterface (); virtual ~TextUserInterface (); virtual FilePath AskFilePath (const wxString &message = wxEmptyString) const; virtual shared_ptr AskKeyfiles (const wxString &message = L"") const; virtual shared_ptr AskPassword (const wxString &message = L"", bool verify = false) const; virtual int AskPim (const wxString &message = L"") const; virtual ssize_t AskSelection (ssize_t optionCount, ssize_t defaultOption = -1) const; virtual wstring AskString (const wxString &message = wxEmptyString) const; virtual shared_ptr AskVolumePath (const wxString &message = L"") const; virtual bool AskYesNo (const wxString &message, bool defaultYes = false, bool warning = false) const; virtual void BackupVolumeHeaders (shared_ptr volumePath) const; virtual void BeginBusyState () const { } virtual void ChangePassword (shared_ptr volumePath = shared_ptr (), shared_ptr password = shared_ptr (), int pim = 0, shared_ptr currentHash = shared_ptr (), bool truecryptMode = false, shared_ptr keyfiles = shared_ptr (), shared_ptr newPassword = shared_ptr (), int newPim = 0, shared_ptr newKeyfiles = shared_ptr (), shared_ptr newHash = shared_ptr ()) const; virtual void CreateKeyfile (shared_ptr keyfilePath = shared_ptr ()) const; virtual void CreateVolume (shared_ptr options) const; virtual void DeleteSecurityTokenKeyfiles () const; virtual void DoShowError (const wxString &message) const; virtual void DoShowInfo (const wxString &message) const; virtual void DoShowString (const wxString &str) const; virtual void DoShowWarning (const wxString &message) const; virtual void EndBusyState () const { } virtual void ExportTokenKeyfile () const; virtual shared_ptr GetAdminPasswordRequestHandler (); virtual void ImportTokenKeyfiles () const; #ifndef TC_NO_GUI virtual bool Initialize (int &argc, wxChar **argv) { return wxAppBase::Initialize(argc, argv); } #endif virtual void InitSecurityTokenLibrary () const; virtual void ListTokenKeyfiles () const; virtual void ListSecurityTokenKeyfiles () const; virtual void ListEMVTokenKeyfiles () const; virtual VolumeInfoList MountAllDeviceHostedVolumes (MountOptions &options) const; virtual shared_ptr MountVolume (MountOptions &options) const; virtual bool OnInit (); #ifndef TC_NO_GUI virtual bool OnInitGui () { return true; } #endif virtual int OnRun(); virtual void RestoreVolumeHeaders (shared_ptr volumePath) const; static void SetTerminalEcho (bool enable); virtual void UserEnrichRandomPool () const; virtual void Yield () const { } protected: static void OnSignal (int signal); virtual void ReadInputStreamLine (wxString &line) const; virtual wxString ReadInputStreamLine () const; unique_ptr FInputStream; unique_ptr TextInputStream; private: TextUserInterface (const TextUserInterface &); TextUserInterface &operator= (const TextUserInterface &); }; extern wxMessageOutput *DefaultMessageOutput; } #endif // TC_HEADER_Main_TextUserInterface /a> 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 
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<h1>Memory Dump Files</h1>
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<em style="text-align:left">Note: The issue described below does <strong style="text-align:left">
not</strong> affect you if the system partition or system drive is encrypted (for more information, see the chapter
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System Encryption</a>) and if the system is configured to write memory dump files to the system drive (which it typically is, by default).</em></div>
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Most operating systems, including Windows, can be configured to write debugging information and contents of the system memory to so-called memory dump files (also called crash dump files) when an error occurs (system crash, &quot;blue screen,&quot; bug check). Therefore,
 memory dump files may contain sensitive data. VeraCrypt <em style="text-align:left">
cannot</em> prevent cached passwords, encryption keys, and the contents of sensitive files opened in RAM from being saved
<em style="text-align:left">unencrypted</em> to memory dump files. Note that when you open a file stored on a VeraCrypt volume, for example, in a text editor, then the content of the file is stored
<em style="text-align:left">unencrypted</em> in RAM (and it may remain <em style="text-align:left">
unencrypted </em>in RAM until the computer is turned off). Also note that when a VeraCrypt volume is mounted, its master key is stored
<em style="text-align:left">unencrypted</em> in RAM. Therefore, you must disable memory dump file generation on your computer at least for each session during which you work with any sensitive data and during which you mount a VeraCrypt volume. To do so in
 Windows XP or later, right-click the '<em style="text-align:left">Computer</em>' (or '<em style="text-align:left">My Computer</em>') icon on the desktop or in the
<em style="text-align:left">Start Menu</em>, and then select <em style="text-align:left">
Properties</em> &gt; (on Windows Vista or later: &gt; <em style="text-align:left">
Advanced System Settings</em> &gt;) <em style="text-align:left">Advanced </em>tab &gt; section
<em style="text-align:left">Startup and Recovery </em>&gt; <em style="text-align:left">
Settings &gt; </em>section <em style="text-align:left">Write debugging information
</em>&gt; select <em style="text-align:left">(none)</em> &gt; <em style="text-align:left">
OK</em>.</div>
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<em style="text-align:left">Note for users of Windows XP/2003</em>: As Windows XP and Windows 2003 do not provide any API for encryption of memory dump files, if the system partition/drive is encrypted by VeraCrypt and your Windows XP system is configured to
 write memory dump files to the system drive, the VeraCrypt driver automatically prevents Windows from writing any data to memory dump files<em style="text-align:left">.</em></div>
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