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348 lines
13 KiB
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348 lines
13 KiB
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\title{Sufyaan's Website}
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\author{Sufyaan's Website}
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\date{}
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\begin{document}
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\maketitle
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\section[How To Encrypt Emails]{How To Encrypt Emails}\label{why-i-use-terminal-apps}
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\textbf{14 March 2023}
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\textbf{Category: }Software \& Guides
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In this article, I will show you how to encrypt emails. You can encrypt
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emails on almost any device. In this article, however, I will be
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focusing on Gmail, Outlook, Yahoo. I will also be focusing on making
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ProtonMail encrypt emails with Gmail.
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\hypertarget{myths}{%
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\subsection[Myths]{Myths}\label{myths}}
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Firstly, let us dispell a few myths. The first myth is a big one.
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\hypertarget{gmails-confidential-mode-does-not-encrypt-your-emails}{%
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\subsubsection{Gmail\textquotesingle s Confidential mode does not
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encrypt your
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emails}\label{gmails-confidential-mode-does-not-encrypt-your-emails}}
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Yes, you heard that right. Gmail\textquotesingle s confidential mode
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does not encrypt your emails. Whenever I speak about email encryption, I
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hear something along the lines of:
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\emph{``Why are you making things so complicated? Just use
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Gmail\textquotesingle s confidential mode! It encrypts your emails for
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you!''}
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No, Gmail\textquotesingle s confidential mode does not encrypt emails.
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It simply puts a password on your email.
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\hypertarget{protonmail-does-not-encrypt-emails-sent-to-non-protonmail-users}{%
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\subsubsection{ProtonMail does not encrypt emails sent to non-ProtonMail
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users}\label{protonmail-does-not-encrypt-emails-sent-to-non-protonmail-users}}
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This is also a huge myth. ProtonMail encrypts emails sent to other
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ProtonMail users. However, they do not encrypt emails sent to or
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received from non-ProtonMail users. It collects less data about you and
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it stores your emails with encryption on their servers but the email
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itself is not encrypted on the other person\textquotesingle s end.
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Encryption for non-ProtonMail users works on a user-to-user basis. You
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have to have the encryption keys of the other person if they are a
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non-ProtonMail user and they also have to encrypt their emails manually.
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We will learn how to do this in this guide.
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\hypertarget{online-email}{%
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\subsection[Online Email]{Online Email}\label{online-email}}
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Encrypting your emails online is a simple process.
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\hypertarget{step-1-get-the-mailvelope-extension}{%
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\subsubsection{Step 1: Get the Mailvelope
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extension}\label{step-1-get-the-mailvelope-extension}}
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\href{https://mailvelope.com/}{Mailvelope is a free, libre and
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open-source browser extension} which allows you to not only encrypt
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emails using public keys but also has a keyserver which has a list of
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other people who use Mailvelope. Emails sent to other people using
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Mailvelope will automatically be encrypted.
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\hypertarget{step-2-set-it-up}{%
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\subsubsection{Step 2: Set it up}\label{step-2-set-it-up}}
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Open the extension and generate your keypair if you do not have a
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keypair or import your keypair if you do have one.
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\centerline{\cutpic{1cm}{16cm}{mailvelope-1.png}}
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\hypertarget{step-3-import-other-peoples-keys}{%
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\subsubsection{Step 3: Import other people\textquotesingle s
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keys}\label{step-3-import-other-peoples-keys}}
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Encourage all of your friends to get the Mailvelope extension.
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Afterwards, you can import their public keys. Henceforth, all emails
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will be encrypted. Many websites also give their own public key along
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with their emails so that you can encrypt them as well. If you have
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friends who use ProtonMail, go to the ProtonMail import section of this
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post.
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\hypertarget{step-4-send-encrypted-emails}{%
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\subsubsection{Step 4: Send encrypted
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emails!}\label{step-4-send-encrypted-emails}}
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Whenever you go to compose an email, there will be a button like the
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image below. Just click on it and there will be a popup to compose your
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encrypted email. Just fill in the info and send your email!
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\centerline{\cutpic{1cm}{5cm}{mailvelope-2.png}}
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\hypertarget{smartphones}{%
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\subsection[Smartphones]{Smartphones}\label{smartphones}}
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Firstly, I would like to give a disclaimer. There is no way to use PGP
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encryption on iOS. Most encryption that is used on iOS is either paid or
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unavailable. On Android, you cannot encrypt emails using the native
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applications for Gmail, Outlook or Yahoo. Even if there is such a
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feature, you should not use their official clients due to their invasive
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tracking. To encrypt emails, we will use an email app called K-9 Mail. I
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believe that everyone should use K-9 Mail even if they are not
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encrypting their emails. It is a fantastic app.
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K-9 Mail is a free and open-source email app that has a lot of features.
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I believe that no one should be writing emails on their phones but it is
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a great app to have just to make sure there is nothing urgent in your
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inbox.
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\hypertarget{step-1-get-the-app}{%
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\subsubsection{Step 1: Get the app}\label{step-1-get-the-app}}
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K-9 Mail is on the Play Store, but do not get it from there.
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\href{https://f-droid.org/}{Get F-Droid} and make it a habit to download
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apps you use and the alternatives to them through F-Droid.
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\href{https://f-droid.org/packages/com.fsck.k9/}{K-9 Mail is available
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on F-Droid} and is a popular app there.
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\hypertarget{step-2-set-it-up-1}{%
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\subsubsection{Step 2: Set it up}\label{step-2-set-it-up-1}}
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Follow the guide to enter your email address and get it working through
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K-9 Mail. I have tried Gmail and it works flawlessly. Other email
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providers will work well but some may not work at all.
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\hypertarget{step-3-get-the-openkeychain-app}{%
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\subsubsection{Step 3: Get the OpenKeychain
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app}\label{step-3-get-the-openkeychain-app}}
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OpenKeychain is an app that allows you to import and manage PGP keys.
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\href{https://f-droid.org/packages/org.sufficientlysecure.keychain/}{It
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is also available on F-Droid.}
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\hypertarget{step-4-generateimport-your-key}{%
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\subsubsection{Step 4: Generate/Import your
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key}\label{step-4-generateimport-your-key}}
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Generate your key by pressing the option to create a key or import the
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key file.
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\hypertarget{step-5-setup-k-9-mail}{%
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\subsubsection{Step 5: Setup K-9 Mail}\label{step-5-setup-k-9-mail}}
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Go back to K-9 Mail, go to settings, go to your account that you added,
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go to end-to-end encryption and enable it. Select your key. Turn on
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autocrypt mutual mode. That is it! You should see a lock icon whenever
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you are sending an email to someone if you have their PGP public key. If
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you need to import more keys, just go to the OpenKeychain app and import
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them.
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\centerline{\cutpic{0.5cm}{6cm}{k9-encryption.png}}
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\hypertarget{exporting-protonmail-keys}{%
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\subsection[Exporting ProtonMail Keys]{Exporting ProtonMail
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Keys}\label{exporting-protonmail-keys}}
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To export your ProtonMail public keys, follow these steps.
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\begin{enumerate}
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\tightlist
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\item
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Login to your ProtonMail account
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\item
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Go to the settings
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\item
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Go to the section labelled \textquotesingle Encryption and
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keys\textquotesingle{}
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\item
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Scroll down to \textquotesingle Email encryption
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keys\textquotesingle{} and click
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\textquotesingle Export\textquotesingle.
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\end{enumerate}
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The image below is how it looks like in 2023.
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\centerline{\cutpic{1cm}{16cm}{protonmail-key-export.png}}
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You can now send these keys to anyone to import into their PGP keychain.
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They will then be able to encrypt emails when sending them to your
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ProtonMail address!
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\hypertarget{conclusion}{%
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\subsection[Conclusion]{Conclusion}\label{conclusion}}
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That is it! You have setup encryption on your emails. This is a great
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step as email itself is very unsecure, so this will boost your privacy
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and security by a lot. Sharing passwords through email has never been
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safe but encryption allows you to do it with a good range of security.
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\end{document}
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