VeraCrypt License

Software distributed under this license is distributed on an "AS IS" BASIS WITHOUT WARRANTIES OF ANY KIND. THE AUTHORS AND DISTRIBUTORS OF THE SOFTWARE DISCLAIM ANY LIABILITY. ANYONE WHO USES, COPIES, MODIFIES, OR (RE)DISTRIBUTES ANY PART OF THE SOFTWARE IS, BY SUCH ACTION(S), ACCEPTING AND AGREEING TO BE BOUND BY ALL TERMS AND CONDITIONS OF THIS LICENSE. IF YOU DO NOT ACCEPT THEM, DO NOT USE, COPY, MODIFY, NOR (RE)DISTRIBUTE THE SOFTWARE, NOR ANY PART(S) THEREOF.

VeraCrypt is governed by the TrueCrypt License version 3.0, a verbatim copy of this version of the TrueCrypt License can be found below.
This license does not grant you rights to use any contributors' name, logo, or trademarks, including IDRIX, VeraCrypt and all derivative names. For example, the following names are not allowed: VeraCrypt, VeraCrypt+, VeraCrypt Professional, iVeraCrypt, etc. Nor any other names confusingly similar to the name VeraCrypt (e.g., Vera-Crypt, Vera Crypt, VerKrypt, etc).
____________________________________________________________

TrueCrypt License Version 3.0

Software distributed under this license is distributed on an "AS IS" BASIS WITHOUT WARRANTIES OF ANY KIND. THE AUTHORS AND DISTRIBUTORS OF THE SOFTWARE DISCLAIM ANY LIABILITY. ANYONE WHO USES, COPIES, MODIFIES, OR (RE)DISTRIBUTES ANY PART OF THE SOFTWARE IS, BY SUCH ACTION(S), ACCEPTING AND AGREEING TO BE BOUND BY ALL TERMS AND CONDITIONS OF THIS LICENSE. IF YOU DO NOT ACCEPT THEM, DO NOT USE, COPY, MODIFY, NOR (RE)DISTRIBUTE THE SOFTWARE, NOR ANY PART(S) THEREOF.


I. Definitions

1. "This Product" means the work (including, but not limited to, source code, graphics, texts, and accompanying files) made available under and governed by this version of this license ("License"), as may be indicated by, but is not limited to, copyright notice(s) attached to or included in the work.

2. "You" means (and "Your" refers to) an individual or a legal entity (e.g., a non-profit organization, commercial organization, government agency, etc.) exercising permissions granted by this License.

3. "Modification" means (and "modify" refers to) any alteration of This Product, including, but not limited to, addition to or deletion from the substance or structure of This Product, translation into another language, repackaging, alteration or removal of any file included with This Product, and addition of any new files to This Product.

4. "Your Product" means This Product modified by You, or any work You derive from (or base on) any part of This Product. In addition, "Your Product" means any work in which You include any (modified or unmodified) portion of This Product. However, if the work in which you include it is an aggregate software distribution (such as an operating system distribution or a cover CD-ROM of a magazine) containing multiple separate products, then the term "Your Product" includes only those products (in the aggregate software distribution) that use, include, or depend on a modified or unmodified version of This Product (and the term "Your Product" does not include the whole aggregate software distribution). For the purposes of this License, a product suite consisting of two or more products is considered a single product (operating system distributions and cover media of magazines are not considered product suites).

5. "Distribution" means (and "distribute" refers to), regardless of means or methods, conveyance, transfer, providing, or making available of This/Your Product or portions thereof to third parties (including, but not limited to, making This/Your Product, or portions thereof, available for download to third parties, whether or not any third party has downloaded the product, or any portion thereof, made available for download).



II. Use, Copying, and Distribution of This Product

1. Provided that You comply with all applicable terms and conditions of this License, You may make copies of This Product (unmodified) and distribute copies of This Product (unmodified) that are not included in another product forming Your Product (except as permitted under Chapter III). Note: For terms and conditions for copying and distribution of modified versions of This Product, see Chapter III.

2. Provided that You comply with all applicable terms and conditions of this License, You may use This Product freely (see also Chapter III) on any number of computers/systems for non-commercial and/or commercial purposes.



III. Modification, Derivation, and Inclusion in Other Products

1. If all conditions specified in the following paragraphs in this Chapter (III) are met (for exceptions, see Section III.2) and if You comply with all other applicable terms and conditions of this License, You may modify This Product (thus forming Your Product), derive new works from This Product or portions thereof (thus forming Your Product), include This Product or portions thereof in another product (thus forming Your Product, unless defined otherwise in Chapter I), and You may use (for non-commercial and/or commercial purposes), copy, and/or distribute Your Product.

  1. The name of Your Product (or of Your modified version of This Product) must not contain the name TrueCrypt (for example, the following names are not allowed: TrueCrypt, TrueCrypt+, TrueCrypt Professional, iTrueCrypt, etc.) nor any other names confusingly similar to the name TrueCrypt (e.g., True-Crypt, True Crypt, TruKrypt, etc.)

    All occurrences of the name TrueCrypt that could reasonably be considered to identify Your Product must be removed from Your Product and from any associated materials. Logo(s) included in (or attached to) Your Product (and in/to associated materials) must not incorporate and must not be confusingly similar to any of the TrueCrypt logos (including, but not limited to, the non-textual logo consisting primarily of a key in stylized form) or portion(s) thereof. All graphics contained in This Product (logos, icons, etc.) must be removed from Your Product (or from Your modified version of This Product) and from any associated materials.

  2. The following phrases must be removed from Your Product and from any associated materials, except the text of this License: "A TrueCrypt Foundation Release", "Released by TrueCrypt Foundation", "This is a TrueCrypt Foundation release."

  3. Phrase "Based on TrueCrypt, freely available at http://www.truecrypt.org/" must be displayed by Your Product (if technically feasible) and contained in its documentation. Alternatively, if This Product or its portion You included in Your Product constitutes only a minor portion of Your Product, phrase "Portions of this product are based in part on TrueCrypt, freely available at http://www.truecrypt.org/" may b
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<img src="arrow_right.gif" alt=">>" style="margin-top: 5px">
<a href="Plausible%20Deniability.html">Plausible Deniability</a>
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<a href="Hidden%20Volume.html">Hidden Volume</a>
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<a href="Protection%20of%20Hidden%20Volumes.html">Protection of Hidden Volumes</a>
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<div class="wikidoc">
<h1>Protection of Hidden Volumes Against Damage</h1>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
If you mount a VeraCrypt volume within which there is a <a href="Hidden%20Volume.html" style="text-align:left; color:#0080c0; text-decoration:none.html">
hidden volume</a>, you may <em style="text-align:left">read</em> data stored on the (outer) volume without any risk. However, if you (or the operating system) need to
<em style="text-align:left">save</em> data to the outer volume, there is a risk that the hidden volume will get damaged (overwritten). To prevent this, you should protect the hidden volume in a way described in this section.</div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
When mounting an outer volume, type in its password and before clicking <em style="text-align:left">
OK, </em>click <em style="text-align:left">Mount Options</em>:</div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<img src="Protection of Hidden Volumes_Image_027.jpg" alt="VeraCrypt GUI" width="499" height="205"></div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
&nbsp;</div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
In the <em style="text-align:left">Mount Options </em>dialog window, enable the option '<em style="text-align:left">Protect hidden volume against damage caused by writing to outer volume</em> '. In the '<em style="text-align:left">Password to hidden volume</em>'
 input field, type the password for the hidden volume. Click <em style="text-align:left">
OK </em>and, in the main password entry dialog, click <em style="text-align:left">
OK</em>.</div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<img src="Protection of Hidden Volumes_Image_028.jpg" alt="Mounting with hidden protection" width="432" height="402"></div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<br style="text-align:left">
<br style="text-align:left">
Both passwords must be correct; otherwise, the outer volume will not be mounted. When hidden volume protection is enabled, VeraCrypt does
<em style="text-align:left">not</em> actually mount the hidden volume. It only decrypts its header (in RAM) and retrieves information about the size of the hidden volume (from the decrypted header). Then, the outer volume is mounted and any attempt to save
 data to the area of the hidden volume will be rejected (until the outer volume is dismounted).
<strong style="text-align:left">Note that VeraCrypt never modifies the filesystem (e.g., information about allocated clusters, amount of free space, etc.) within the outer volume in any way. As soon as the volume is dismounted, the protection is lost. When
 the volume is mounted again, it is not possible to determine whether the volume has used hidden volume protection or not. The hidden volume protection can be activated only by users who supply the correct password (and/or keyfiles) for the hidden volume (each
 time they mount the outer volume). <br style="text-align:left">
</strong><br style="text-align:left">
As soon as a write operation to the hidden volume area is denied/prevented (to protect the hidden volume), the entire host volume (both the outer and the hidden volume) becomes write-protected until dismounted (the VeraCrypt driver reports the 'invalid parameter'
 error to the system upon each attempt to write data to the volume). This preserves plausible deniability (otherwise certain kinds of inconsistency within the file system could indicate that this volume has used hidden volume protection). When damage to hidden
 volume is prevented, a warning is displayed (provided that the VeraCrypt Background Task is enabled &ndash; see the chapter
<a href="VeraCrypt%20Background%20Task.html" style="text-align:left; color:#0080c0; text-decoration:none.html">
VeraCrypt Background Task</a>). Furthermore, the type of the mounted outer volume displayed in the main window changes to '<em style="text-align:left">Outer(!)</em> ':</div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<img src="Protection of Hidden Volumes_Image_029.jpg" alt="VeraCrypt GUI" width="579" height="498"></div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<br style="text-align:left">
<br style="text-align:left">
Moreover, the field <em style="text-align:left">Hidden Volume Protected </em>in the
<em style="text-align:left">Volume Properties </em>dialog window says:<br style="text-align:left">
'<em style="text-align:left">Yes (damage prevented!)</em>'<em style="text-align:left">.</em><br style="text-align:left">
<br style="text-align:left">
Note that when damage to hidden volume is prevented, <em style="text-align:left">
no</em> information about the event is written to the volume. When the outer volume is dismounted and mounted again, the volume properties will
<em style="text-align:left">not </em>display the string &quot;<em style="text-align:left">damage prevented</em>&quot;.<em style="text-align:left"><br style="text-align:left">
</em></div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<br style="text-align:left">
There are several ways to check that a hidden volume is being protected against damage:</div>
<ol style="text-align:left; margin-top:18px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<li style="text-align:left; margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px">
A confirmation message box saying that hidden volume is being protected is displayed after the outer volume is mounted (if it is not displayed, the hidden volume is not protected!).
</li><li style="text-align:left; margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px">
In the <em style="text-align:left">Volume Properties </em>dialog, the field <em style="text-align:left">
Hidden Volume Protected </em>says '<em style="text-align:left">Yes</em>': </li><li style="text-align:left; margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px">
The type of the mounted outer volume is <em style="text-align:left">Outer</em>: </li></ol>
<p><img src="Protection of Hidden Volumes_Image_030.jpg" alt="VeraCrypt GUI" width="579" height="232"></p>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<em style="text-align:left"><br style="text-align:left">
<strong style="text-align:left">Important: You are the only person who can mount your outer volume with the hidden volume protection enabled (since nobody else knows your hidden volume password). When an adversary asks you to mount an outer volume, you of course
 must </strong></em><strong style="text-align:left">not</strong><em style="text-align:left"><strong style="text-align:left"> mount it with the hidden volume protection enabled. You must mount it as a normal volume (and then VeraCrypt will not show the volume
 type &quot;Outer&quot; but &quot;Normal&quot;). The reason is that, during the time when an outer volume is mounted with the hidden volume protection enabled, the adversary
</strong></em><strong style="text-align:left">can</strong><em style="text-align:left"><strong style="text-align:left"> find out that a hidden volume exists within the outer volume (he/she will be able to find it out until the volume is dismounted and possibly
 even some time after the computer has been powered off - see <a href="Unencrypted%20Data%20in%20RAM.html" style="text-align:left; color:#0080c0; text-decoration:none.html">
Unencrypted Data in RAM</a>).</strong></em> <br style="text-align:left">
<br style="text-align:left">
<br style="text-align:left">
<br style="text-align:left">
<em style="text-align:left">Warning</em>: Note that the option '<em style="text-align:left">Protect hidden volume against damage caused by writing to outer volume</em>' in the
<em style="text-align:left">Mount Options </em>dialog window is automatically disabled after a mount attempt is completed, no matter whether it is successful or not (all hidden volumes that are already being protected will, of course, continue to be protected).
 Therefore, you need to check that option <em style="text-align:left">each </em>time you attempt to mount the outer volume (if you wish the hidden volume to be protected):<br style="text-align:left">
<br style="text-align:left">
<img src="Protection of Hidden Volumes_Image_031.jpg" alt="VeraCrypt GUI" width="432" height="402"></div>
<div style="text-align:left; margin-top:19px; margin-bottom:19px; padding-top:0px; padding-bottom:0px">
<br style="text-align:left">
If you want to mount an outer volume and protect a hidden volume within using cached passwords, then follow these steps: Hold down the
<em style="text-align:left">Control </em>(<em style="text-align:left">Ctrl</em>) key when clicking
<em style="text-align:left">Mount </em>(or select <em style="text-align:left">Mount with Options
</em>from the <em style="text-align:left">Volumes </em>menu). This will open the <em style="text-align:left">
Mount Options </em>dialog. Enable the option '<em style="text-align:left">Protect hidden volume against damage caused by writing to outer volume</em>' and leave the password box empty. Then click
<em style="text-align:left">OK</em>.</div>
<p>If you need to mount an outer volume and you know that you will not need to save any data to it, then the most comfortable way of protecting the hidden volume against damage is mounting the outer volume as read-only (see the section
<a href="Mounting%20VeraCrypt%20Volumes.html" style="text-align:left; color:#0080c0; text-decoration:none.html">
Mount Options</a>).</p>
<p>&nbsp;</p>
<p><a href="Security%20Requirements%20for%20Hidden%20Volumes.html" style="text-align:left; color:#0080c0; text-decoration:none; font-weight:bold.html">Next Section &gt;&gt;</a></p>
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