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encrypt-filenames.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type">
<meta name="AUTHOR" content="PeaZip Free Archiver Utility">
<meta name="DESCRIPTION"
content="How to encrypt name of files inside archives, hide make unreadable TOC list. Disallow, disable browsing. Set ask password for showing content of 7Z PEA RAR files">
<meta name="KEYWORDS"
content="encrypt, filenames, names, file, content, toc, list, hide, unreadable, password, software, 7z, cryptography, archives, free, read">
<meta name="ROBOTS" content="all">
<title>Encrypt file names in archives, hide content</title>
<meta name="viewport" content="width=device-width">
<meta property="og:site_name"
content="PeaZip file archiver utility, free RAR ZIP software">
<meta property="og:title"
content="Encrypt file names in archives, hide content">
<meta property="og:description"
content="How to encrypt name of files inside archives, hide make unreadable TOC list. Disallow, disable browsing. Set ask password for showing content of 7Z PEA RAR files">
<meta property="og:image" content="free-zip/peazip-icon.png">
<meta property="og:url"
content="https://peazip.github.io/encrypt-filenames.html">
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title="Prevent listing archive content"
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src="free-rar/archive-manager.png" style="width: 12px; height: 12px;">
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<td colspan="1" rowspan="1" style="vertical-align: top;"> <br>
<h1 style="text-align: center;"><big><big><big><a
style="font-weight: bold;" name="hide_archive_content"></a><span
style="font-weight: bold;">Encrypt file names in archives, hide
content</span><br>
</big></big></big></h1>
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style="vertical-align: top; background-color: rgb(240, 239, 238);"><img
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src="free-rar/file-compressor.png" style="width: 2px; height: 2px;"><br>
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border="0" cellpadding="48" cellspacing="0">
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<tr align="left">
<td
style="background-color: rgb(255, 255, 255); vertical-align: top;">
<h2><big style="font-weight: bold;"><big><big><a
name="encrypt_file_name_list"></a></big></big></big><a
href="encrypt-filenames.html#hide_archive_content"><big
style="font-weight: bold;"><big><big>How
to set to ask password
for listing, browsing
archive content</big></big></big><br>
</a></h2>
<br>
<br>
<h3 style="font-weight: bold;"><big>Hide name of files in
archives</big></h3>
<br>
<a name="hide_content_of_archive"></a>Under some
circumstances, when <a href="encrypt-files.html">protecting archive
files with encryption</a>, it can be recommended to encrypt the list of
files
featured inside an archive to hide it from unauthorized users, in order
to disallow showing list of archive content before providing password,
otherwise, even if the file data itself is encrypted, readable
filenames can leak hints to attackers about the nature of the archive.<br>
<br>
<h2><img
title="Prevent listing of archives, hide content for unauthorized browsing"
alt="disallow listing of archives without password" src="password.png"
style="border: 0px solid ; width: 562px; height: 302px;"></h2>
<br>
<br>
<h3 style="font-weight: bold;"><big>How to encrypt
filenames in archives with PeaZip<br>
</big></h3>
<br>
<a name="password_for_listing_archive"></a>To prevent this
kind of information leak and make archive
table of content (TOC) unreadable without knowing the password,
disabling listing of the archive when the user will try to <a
href="extract-encrypted-files.html">open the encrypted archive file</a>,
it is possible to set a password for listing archive content.<br>
Click
on the
padlock icon to
set a <span style="font-weight: bold;">password </span>(and
optionally
a keyfile) for the archive
and check "<span style="font-weight: bold;">Encrypt also file names</span>"
option in the password dialog.<br>
<br>
<span style="font-weight: bold;">Browse archives with
hidden file list</span><br>
This will require the correct password to be provided opening the
archive, before being able to show name of files in archives.<br>
The padlock icon to set password for archive / filenames in archive,
can be found in the status bar, in the file/archive
browser, or below the output field in the archive creation interface<br>
<h3><img
title="How to encrypt table of content of archive with password for browsing"
alt="hide archive content" src="rar-files/cryptography.gif"
style="width: 16px; height: 16px;" align="middle"></h3>
<table style="width: 100%; text-align: left;" border="0"
cellpadding="24" cellspacing="0">
<tbody>
<tr>
<td
style="vertical-align: top; text-align: right; width: 128px;">
<h2><span style="font-weight: bold;"><img
title="Make archive unreadable without password"
alt="hide names of files inside archives" src="file-format/quotes.png"
style="width: 32px; height: 32px;"></span></h2>
</td>
<td style="vertical-align: top; font-style: italic;"><a
name="password_protect_browsing_archive"></a><big>Support for
encryption of archive's table of content depends on the archive format
design: this feature can't
be added to formats lacking it by design, as enforcing it on the
archive manager will enable the attacker to bypass this "protection"
simply using a
different software to list the archive's content.</big></td>
<td style="vertical-align: bottom; width: 128px;">
<h3><img title="Ask password to show archive content"
alt="encrypt archive TOC table of content"
src="file-format/quotes-inverse.png" style="width: 32px; height: 32px;"></h3>
</td>
</tr>
</tbody>
</table>
<br>
<br>
<h3 style="font-weight: bold;"><big>What formats support
hiding names of files in archive</big></h3>
<br>
<a name="prevent_listing_of_archives"></a>Encryption in
standards employed by PeaZip supports in different ways the encryption
of
file content:<br>
<ul>
<li><span style="font-weight: bold;">ZIP </span>and <span
style="font-weight: bold;">ZIPX</span> formats
lack this feature, meaning this setting will have no effect, and
archive
TOC will always be readable before providing the correct password even
if the data is encrypted</li>
</ul>
<ul>
<li><span style="font-weight: bold;">7Z</span>, <span
style="font-weight: bold;">ARC</span>, and <span
style="font-weight: bold;">RAR</span> formats support encryption of
filenames in archive, so if this option is in use the archive content
will be
hidden unless correct password is provided for browsing it</li>
<ul>
<li>in order to create encrypted RAR files with PeaZip
WinRar must be installed in the system, autonomous write-support for
rar format is not possible due to rar licensing limitations<br>
</li>
</ul>
</ul>
<span style="font-weight: bold;">PEA</span> and <span
style="font-weight: bold;">ZPAQ </span>format,
by design, will never display content of an encrypted archive until
correct password is provided, and no option is provided to otherwise
allow listing of password-protected files. Using those archive formats,
providing encryption is in applied, name of files in archive will
always stay hidden until password is verified.<br>
<br>
Learn more about working with archive formats supporting filename
encryption: <a href="7zip-files-utility.html">manage encrypted 7Z files</a>
(optionally with filename encryption), <a href="arc-files-utility.html">manage
encrypted ARC files</a>, manage encrypted PEA files, <a
href="free-rar-create.html">create and modify encrypted RAR files</a>
from PeaZip GUI if WinRar is installed in the system, <a
href="paq-files-compression-utility.html">manage encrypted ZPAQ files</a>.<br>
<br>
<p><span style="font-weight: bold;">Synopsis: How to
encrypt name of files inside archives, hide (make unreadable without
password) TOC list. Disallow listing archive content. Disable browsing
inside archives. How to set option to ask password for showing content
of 7Z PEA RAR files.<br>
</span></p>
<p><span style="font-weight: bold;">Topics: encrypt file
names, so opening the archive requires password for listing archive
content</span><br>
<span style="font-weight: bold;"></span><span
style="font-weight: bold;"></span></p>
<p><span style="font-weight: bold;">PeaZip > FAQ
> Encrypt file names in archives, hide content<br>
</span></p>
<table
style="background-color: rgb(240, 240, 240); width: 100%; text-align: left;"
border="0" cellpadding="24" cellspacing="1">
<tbody>
<tr>
<td colspan="1" rowspan="1"
style="vertical-align: top; background-color: rgb(250, 250, 250);">
<h3><img title="Security FAQ"
alt="encrypt names of files inside archive"
src="file-format/security.png" style="width: 96px; height: 96px;"
align="right"><a name="how_to_protect_data"></a>SECURITY</h3>
<p style="font-weight: bold;"><a
href="antivirus-scan-zipped-files.html">Antivirus scan compressed files</a><br>
</p>
<p><a href="multiple-passwords.html"><span
style="font-weight: bold;">Archives with multiple passwords</span></a><br>
</p>
<p style="font-weight: bold;"><a
href="encrypt-filenames.html">Encrypt list of filenames inside an
archive</a><br>
</p>
<p><a href="backup-files.html"><span
style="font-weight: bold;">How to backup files and folders?</span></a><br>
</p>
<p><a href="change-password.html"><span
style="font-weight: bold;">How to change password for existing archive?</span></a><br>
</p>
<p> </p>
<p style="font-weight: bold;"> </p>
<p><a style="font-weight: bold;"
href="encrypt-files.html">How to encrypt
archives?</a> </p>
<p><a style="font-weight: bold;"
href="extract-encrypted-files.html">How to
extract
encrypted archives?</a> </p>
<p><a style="font-weight: bold;"
href="protect-files.html">How
to protect files
with PeaZip?</a> </p>
<p><a style="font-weight: bold;"
href="secure-delete.html">How to securely
delete files, folders, and free space?</a><br>
</p>
<p><a style="font-weight: bold;"
href="share-files-sharing.html">How to securely share files?</a><br>
</p>
<p><a style="font-weight: bold;"
href="quantum-computing-cryptography.html">Post-quantum computing
cryptanalysis</a><br>
</p>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<br>
</td>
</tr>
<tr align="center">
<td style="vertical-align: top;">
<table
style="margin-left: auto; margin-right: auto; width: 960px; text-align: left;"
border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top;"><br>
</td>
<td style="vertical-align: top;"><br>
</td>
<td style="vertical-align: top;"><br>
</td>
<td style="vertical-align: top;"><br>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 25%;"><small> <img
alt="hide names of files inside archives" src="titles.png"
style="width: 129px; height: 2px;"><br>
<a name="hide_archive_filenames"></a>DOWNLOADS<br>
<img alt="hide archive content"
src="free-rar/extract-rar.png" style="width: 1px; height: 1px;"
vspace="3"><br>
</small><small><a href="index.html">All
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</small><small><a href="peazip-sources.html">PeaZip sources</a></small><small><br>
</small></td>
<td style="vertical-align: top; width: 25%;"><small><img
alt="encrypt archive TOC table of content" src="titles.png"
style="width: 129px; height: 2px;"><br>
<a name="hide_archive_toc"></a>SUPPORT<br>
<img alt="hide archive filenames"
src="free-rar/extract-rar.png" style="width: 1px; height: 1px;"
vspace="3"><br>
<a href="peazip-help.html">Online
help</a><br>
<a href="peazip-help-faq.html">Frequently
Asked Questions</a><br>
</small><br>
</td>
<td style="vertical-align: top; width: 25%;"><small><img
alt="peazip file compression software" src="titles.png"
style="width: 129px; height: 2px;"><br>
<a style="color: rgb(0, 0, 0);"
name="peazip_cross_platform_archive_manager_app"></a>ABOUT<br
style="font-style: italic;">
<img alt="peazip free archiver utility"
src="free-rar/extract-rar.png" style="width: 1px; height: 1px;"
vspace="3"><br style="font-style: italic;">
</small><small><a href="peazip-tos-privacy.html"
style="font-weight: normal;">PeaZip project: TOS,
Privacy</a><br>
</small></td>
<td style="vertical-align: top; width: 247px;">
<table
style="width: 100%; text-align: left; margin-left: auto; margin-right: 0px;"
border="0" cellpadding="3" cellspacing="0">
<tbody>
<tr>
<td style="text-align: right; vertical-align: middle;"><small><a
target="_blank" href="https://github.com/peazip/PeaZip/releases.atom">Releases
Feed</a></small></td>
<td
style="text-align: right; width: 30px; vertical-align: middle;"><small><img
alt="Disallow, disable browsing of archive content"
title="PeaZip releases feed" src="extract-zip/rss16.png"
style="width: 24px; height: 24px;" align="middle"></small></td>
</tr>
<tr>
<td style="text-align: right; vertical-align: middle;"><small><a
target="_blank" href="https://github.com/peazip/PeaZip/wiki">PeaZip
Wiki</a></small></td>
<td
style="text-align: right; width: 30px; vertical-align: middle;"><small><img
title="PeaZip Wiki online"
alt="Set ask password for showing content of 7Z PEA RAR files"
src="free-zip/wikipedia.png" style="width: 24px; height: 24px;"
align="middle"></small></td>
</tr>
<tr>
<td style="text-align: right; vertical-align: middle;"><small><a
href="mailto:giorgio.tani.software@gmail.com">Developer email</a></small></td>
<td
style="text-align: right; width: 30px; vertical-align: middle;"><small><img
alt="disallow listing of archives without password"
title="Mail developer | Giorgio Tani" src="free-zip/mail.png"
style="width: 24px; height: 24px;"><br>
</small></td>
</tr>
<tr>
<td style="text-align: right; vertical-align: middle;"><small><a
href="peazip-more.html">Search knowledge-base</a><br>
</small></td>
<td
style="text-align: right; width: 30px; vertical-align: middle;"><small><img
alt="hide archive content" title="Search in PeaZip project domain"
src="extract-rar/rar-opener.png"
style="border: 0px solid ; width: 24px; height: 24px;" align="middle"></small></td>
</tr>
</tbody>
</table>
<br>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>