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<div class="section" id="encryption-migration">
<h1>Encryption migration<a class="headerlink" href="#encryption-migration" title="Permalink to this headline">¶</a></h1>
<div class="section" id="encryption-format">
<h2>Encryption format<a class="headerlink" href="#encryption-format" title="Permalink to this headline">¶</a></h2>
<p>Nextcloud still supports the legacy encryption scheme used for server side encryption.
However it is recommended to check if you have to still support this scheme.</p>
<p>Starting with version 20 for new installations the legacy encryption will be off by default.
However if you are upgrading there is a migration path to check if you can disable legacy encryption.</p>
<div class="section" id="checking-for-old-files">
<h3>Checking for old files<a class="headerlink" href="#checking-for-old-files" title="Permalink to this headline">¶</a></h3>
<p>On the command line run:</p>
<blockquote>
<div><p>occ encryption:scan:legacy-format</p>
</div></blockquote>
<p>The command will tell you if you can remove the legacy encryption mode.
If so remove the <cite>encryption.legacy_format_support</cite> from your config.php or set it to <cite>false</cite>.</p>
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