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Filename : nvme-tls-key.html
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<body class="manpage">
<div id="header">
<h1>
nvme-tls-key(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-tls-key -
   Manage NVMe TLS PSKs
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>nvme tls-key</em> [--keyring=&lt;name&gt; | -k &lt;name&gt;]
                        [--keytype=&lt;type&gt; | -t &lt;type&gt;]
                        [--keyfile=&lt;file&gt; | -f &lt;file&gt;]
                        [--import | -i] [--export | -e]
                        [--revoke=&lt;description&gt;| -r &lt;description&gt;]
                        [--verbose | -v]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Import, export or remove NVMe TLS pre-shared keys (PSKs) from the system
keystore. When the <em>--export</em> option is given, all NVMe TLS PSKs are
exported in the form</p></div>
<div class="paragraph"><p>&lt;descriptions&gt; &lt;psk&gt;</p></div>
<div class="paragraph"><p>where <em>&lt;description&gt;</em> is the key description from the
exported key and <em>&lt;psk&gt;</em> is the key data in PSK interchange
format <em>NVMeTLSkey-1:01:&lt;base64 encoded data&gt;:</em>.
Each key is exported in a single line.
When the <em>--import</em> option is given key data is read in the
same format and imported into the kernel keystore.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-k &lt;name&gt;
</dt>
<dt class="hdlist1">
--keyring=&lt;name&gt;
</dt>
<dd>
<p>
        Name of the keyring into which the <em>retained</em> TLS key should be
        stored. Default is <em>.nvme</em>.
</p>
</dd>
<dt class="hdlist1">
-t &lt;type&gt;
</dt>
<dt class="hdlist1">
--keytype=&lt;type&gt;
</dt>
<dd>
<p>
        Type of the key for resulting TLS key.
        Default is <em>psk</em>.
</p>
</dd>
<dt class="hdlist1">
-f &lt;file&gt;
</dt>
<dt class="hdlist1">
--keyfile=&lt;file&gt;
</dt>
<dd>
<p>
        File to read the keys from or write the keys to instead of
        stdin / stdout.
</p>
</dd>
<dt class="hdlist1">
-i
</dt>
<dt class="hdlist1">
--import
</dt>
<dd>
<p>
        Read the key data from the file specified by <em>--keyfile</em>
        or stdin if not present.
</p>
</dd>
<dt class="hdlist1">
-e
</dt>
<dt class="hdlist1">
--export
</dt>
<dd>
<p>
        Write the key data to the file specified by <em>--keyfile</em>
        or stdout if not present.
</p>
</dd>
<dt class="hdlist1">
-r &lt;description&gt;
</dt>
<dt class="hdlist1">
--revoke=&lt;description&gt;
</dt>
<dd>
<p>
        Revoke a key from a keyring.
</p>
</dd>
<dt class="hdlist1">
-v
</dt>
<dt class="hdlist1">
--verbose
</dt>
<dd>
<p>
        Increase the information detail in the output.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Create a new TLS key and insert it directly into the .nvme keyring:
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme gen-tls-key -i -n hostnqn0 -c subsys0
NVMeTLSkey-1:01:/b9tVz2OXJVISnoFgrPAygyS86XYJWkAapQeULns6PMpM8wv:
Inserted TLS key 26b3260e</code></pre>
</div></div>
</li>
<li>
<p>
Export previously created key from the kernel keyring and store it into a file
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme tls-key -e -f nvme-tls-keys.txt</code></pre>
</div></div>
</li>
<li>
<p>
Export/list all keys from the .nvme keyring using nvme and keyctl
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme tls-key --export
NVMe0R01 hostnqn0 subsys0 NVMeTLSkey-1:01:/b9tVz2OXJVISnoFgrPAygyS86XYJWkAapQeULns6PMpM8wv:

# keyctl show
Session Keyring
 573249525 --alswrv      0     0  keyring: _ses
 353599402 --alswrv      0 65534   \_ keyring: _uid.0
 475911922 ---lswrv      0     0   \_ keyring: .nvme
 649274894 --als-rv      0     0       \_ psk: NVMe0R01 hostnqn0 subsys0</code></pre>
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</li>
<li>
<p>
Revoke a key using the description and verifying with
keyctl the operation
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme tls-key --revoke="NVMe0R01 hostnqn0 subsys0"

# keyctl show
Session Keyring
 573249525 --alswrv      0     0  keyring: _ses
 353599402 --alswrv      0 65534   \_ keyring: _uid.0
 475911922 ---lswrv      0     0   \_ keyring: .nvme
649274894: key inaccessible (Key has been revoked)</code></pre>
</div></div>
</li>
<li>
<p>
Import back previously generated key from file and verify with keyctl
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme tls-key --import -f nvme-tls-keys.txt

# keyctl show
Session Keyring
 573249525 --alswrv      0     0  keyring: _ses
 353599402 --alswrv      0 65534   \_ keyring: _uid.0
 475911922 ---lswrv      0     0   \_ keyring: .nvme
 734343968 --als-rv      0     0       \_ psk: NVMe0R01 hostnqn0 subsys0</code></pre>
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</li>
</ul></div>
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<div class="sect1">
<h2 id="_nvme">NVME</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the nvme-user suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated
 2025-02-13 00:00:00 UTC
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