Exit Zen
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[[!meta title="Install Tails from Debian or Ubuntu using the command line and GnuPG"]]
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<h1 id="verify-key" class="step">Verify the Tails signing key</h1>
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<p>If you already certified the Tails signing key with your own key, you
can skip this step and start [[downloading and verifying the USB
image|expert#download]].</p>
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In this step, you will download and verify the *Tails signing key* which is the OpenPGP key that is used to cryptographically sign the Tails USB image.
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<div class="note">
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<p>To follow these instructions you need to have your own OpenPGP
key.</p>
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<p>To learn how to create yourself an OpenPGP key, see
<a href="https://riseup.net/en/security/message-security/openpgp/gpg-keys">Managing
OpenPGP Keys</a> by <em>Riseup</em>.</p>
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This verification technique uses the OpenPGP Web of Trust and the certification made by official Debian developers on the Tails signing key.
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Import the Tails signing key in your <span class="application">GnuPG</span> keyring:
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Install the Debian keyring. It contains the OpenPGP keys of all Debian developers:
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Import the OpenPGP key of [[!wikipedia Chris_Lamb_(software_developer) desc="Chris Lamb"]], a former Debian Project Leader, from the Debian keyring into your keyring:
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Verify the certifications made on the Tails signing key:
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In the output of this command, look for the following line:
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It is also possible to verify the certifications made by other
people. Their name and email address appear in the list of
certification if you have their key in your keyring.
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<div class="caution">
<p>If the verification of the certification failed, then you might
have downloaded a malicious version of the Tails signing key or our
instructions might be outdated.
Please [[get in touch with us|support/talk]].</p>
</div>
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Certify the Tails signing key with your own key:
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<h1 id="download" class="step">Download Tails</h1>
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Download the USB image:
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<h1 id="verify" class="step">Verify your download</h1>
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In this step, you will verify your download using the Tails signing key.
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