https://cebulka.in/en/tags/ios/ Recent content in IOS on Cebulka Blog Hugo en-US Sat, 17 Aug 2024 12:06:00 +0000 https://cebulka.in/en/posts/pgp-pgpro/ Sat, 17 Aug 2024 12:06:00 +0000 https://cebulka.in/en/posts/pgp-pgpro/ <p>PGPro is a free iOS app for managing PGP keys and encrypting messages. This guide describes how to install and how to use PGPro on iOS.</p> <h2 class="heading" id="setup"> Installing PGPro on iOS<span class="heading__anchor"> <a href="#setup">#</a></span> </h2><ol> <li>Open the App Store on your iOS device and search for the <em>PGPro</em> app.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-001.jpg" alt="Installation 1" width="50%"> </figure> <ol start="2"> <li>Install the app by clicking the <em>Download</em> button.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-002.jpg" alt="Installation 2" width="50%"> </figure> <ol start="3"> <li>Once the installation is complete, launch the app from the home screen shortcut.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-003.jpg" alt="Installation 3" width="50%"> </figure> <h2 class="heading" id="keygen"> Generating keys in PGPro<span class="heading__anchor"> <a href="#keygen">#</a></span> </h2><ol> <li>Open the PGPro app and click the <em>+</em> button.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-008.jpg" alt="Key Generation 1" width="50%"> </figure> <ol start="2"> <li>Then click <em>Generate Key Pair</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-009.jpg" alt="Key Generation 2" width="50%"> </figure> <ol start="3"> <li>Enter your nickname and a non-existent email address.</li> <li>Enter a password and click <em>Done</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-010.jpg" alt="Key Generation 3" width="50%"> </figure> <ol start="5"> <li>The key has been created.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-011.jpg" alt="Key Generation 4" width="50%"> </figure> <h2 class="heading" id="backup"> Backing up the private key in PGPro<span class="heading__anchor"> <a href="#backup">#</a></span> </h2><ol> <li>Go to the <em>Keychain</em> management screen, select your private key, and click <em>Share</em>.</li> <li>Select the type of key you want to back up by marking <em>Private Key</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-012.jpg" alt="Backup 1" width="50%"> </figure> <ol start="3"> <li>Choose the location where you want to send the key, or copy and save it.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-013.jpg" alt="Backup 2" width="50%"> </figure> <ol start="4"> <li>Ensure the key is saved in a secure location.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-014.jpg" alt="Backup 3" width="50%"> </figure> <blockquote> <p>A backup copy of the private key should be encrypted with <a href="https://www.veracrypt.fr/en/Home.html">VeraCrypt</a> or <a href="https://www.truecrypt71a.com/">TrueCrypt</a> and placed on external media for protection against data loss.</p> </blockquote> <h2 class="heading" id="import"> Importing public keys in PGPro<span class="heading__anchor"> <a href="#import">#</a></span> </h2><ol> <li>Open the email or other communication containing the public key.</li> <li>Copy the public key to the clipboard.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-016.jpg" alt="Key Import 1" width="50%"> </figure> <ol start="3"> <li>Open the PGPro app and select the <em>Keychain</em> option, then <em>Add Key from Clipboard</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-017.jpg" alt="Key Import 2" width="50%"> </figure> <ol start="4"> <li>Agree to paste from another app by clicking <em>Allow Paste</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-018.jpg" alt="Key Import 3" width="50%"> </figure> <h2 class="heading" id="encryption"> Encrypting messages in PGPro<span class="heading__anchor"> <a href="#encryption">#</a></span> </h2><ol> <li>Open the PGPro app and go to the <em>Encryption</em> tab.</li> <li>Enter the message content you want to encrypt directly into the text field or paste it from the clipboard.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-020.jpg" alt="Encryption 1" width="50%"> </figure> <ol start="3"> <li>Click <em>Select Contacts&hellip;</em> and choose the recipient&rsquo;s public key from the list of available keys.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-021.jpg" alt="Encryption 2" width="50%"> </figure> <ol start="4"> <li>Click the <em>Envelope</em> icon to encrypt the message.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-022.jpg" alt="Encryption 3" width="50%"> </figure> <ol start="5"> <li>After encrypting the message, copy the resulting text to the clipboard.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-023.jpg" alt="Encryption 4" width="50%"> </figure> <ol start="6"> <li>You can now share the encrypted text in another app, such as via an instant messenger, or save it to a file.</li> </ol> <blockquote> <p>We do not need to import the public key again when encrypting the next messages. The key will be saved in the application files.</p> </blockquote> <h2 class="heading" id="decryption"> Decrypting messages in PGPro<span class="heading__anchor"> <a href="#decryption">#</a></span> </h2><ol> <li>Open the encrypted message in an email application or other text editor.</li> <li>Copy the encrypted text to the clipboard.</li> <li>Open the PGPro app.</li> <li>In the <em>Decryption</em> tab, select the private key you want to use to decrypt the encrypted text.</li> <li>Click <em>Paste from Clipboard</em>.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-024.jpg" alt="Decryption 1" width="50%"> </figure> <ol start="6"> <li>If prompted for a password, enter the password for your private key.</li> </ol> <figure><img src="https://cebulka.in/en/posts/pgp-pgpro/ios-025.jpg" alt="Decryption 2" width="50%"> </figure> <h2 class="heading" id="signing"> Signing messages in PGPro<span class="heading__anchor"> <a href="#signing">#</a></span> </h2><blockquote> <p>The PGPro app does not support signing unencrypted messages and there are no open-source alternatives available for iOS. If you need to sign a message, import keys from a backup in another GPG program, such as <a href="https://cebulka.in/en/posts/pgp-gpgsuite/#setup">GPGSuite on MacOS</a>.</p> </blockquote> <h2 class="heading" id="verification"> Verifying messages in PGPro<span class="heading__anchor"> <a href="#verification">#</a></span> </h2><blockquote> <p>The PGPro app does not support verification of unencrypted message signatures and there are no open-source alternatives available for iOS. If you need to verify message signatures, use another GPG program for this purpose, such as <a href="https://cebulka.in/en/posts/pgp-gpgsuite/#setup">GPGSuite on MacOS</a>.</p> </blockquote> <hr>