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+<!DOCTYPE html>
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+<html><head><meta charset="UTF-8" /><meta name="viewport" content="initial-scale=1.0" /><link rel="stylesheet" href="../help.css" /></head><body><ul id="top">
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+ <li><a href="#apa-itu-delta-chat">Apa itu Delta Chat?</a>
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+ <ul>
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+ <li><a href="#bagaimana-saya-bisa-menemukan-orang-untuk-diajak-ngobrol">Bagaimana Saya bisa menemukan orang untuk diajak ngobrol?</a></li>
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+ <li><a href="#apa-kelebihan-delta-chat-dibandingkan-dengan-messenger-lain">Apa kelebihan Delta Chat dibandingkan dengan messenger lain?</a></li>
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+ <li><a href="#pesan-mana-yang-muncul-di-delta-chat">Pesan mana yang muncul di Delta Chat?</a></li>
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+ <li><a href="#bagaimana-dengan-spam">Bagaimana dengan spam?</a></li>
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+ <li><a href="#apakah-delta-chat-mendukung-gambar-vidio-dan-lampiran-lainnya">Apakah Delta Chat mendukung gambar, vidio dan lampiran lainnya?</a></li>
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+ <li><a href="#siapa-yang-dapat-melihat-foto-profil-saya">Siapa yang dapat melihat Foto Profil saya?</a></li>
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+ <li><a href="#apakah-delta-chat-mendukung-email-html">Apakah Delta Chat mendukung email HTML?</a></li>
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+ <li><a href="#mengapa-saya-harus-memasukkan-kata-sandi-e-mail-saya-ke-delta-chat-apakah-ini-aman">Mengapa saya harus memasukkan kata sandi E-Mail saya ke Delta Chat? Apakah ini aman?</a></li>
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+ <li><a href="#izin-apa-yang-dibutuhkan-delta-chat">Izin apa yang dibutuhkan Delta Chat?</a></li>
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+ </ul>
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+ </li>
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+ <li><a href="#grup">Grup</a>
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+ <ul>
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+ <li><a href="#pembuatan-grup">Pembuatan grup</a></li>
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+ <li><a href="#tambahkan-anggota-ke-grup">Tambahkan anggota ke grup</a></li>
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+ <li><a href="#what-is-a-verified-group-why-is-it-experimental">What is a verified group? Why is it experimental?</a></li>
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+ <li><a href="#i-have-deleted-myself-by-accident">I have deleted myself by accident.</a></li>
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+ <li><a href="#i-do-not-want-to-receive-the-messages-of-a-group-any-longer">I do not want to receive the messages of a group any longer.</a></li>
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+ <li><a href="#what-do-double-ticks-mean-in-group-messages-has-everyone-read-my-message-now">What do double ticks mean in group messages? Has everyone read my message now?</a></li>
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+ </ul>
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+ </li>
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+ <li><a href="#encryption">Encryption</a>
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+ <ul>
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+ <li><a href="#does-delta-chat-support-end-to-end-encryption">Does Delta Chat support end-to-end-encryption?</a></li>
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+ <li><a href="#what-do-i-have-to-do-to-activate-the-end-to-end-encryption">What do I have to do to activate the end-to-end-encryption?</a></li>
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+ <li><a href="#if-end-to-end-encryption-is-not-available-is-the-connection-not-encrypted-at-all">If end-to-end-encryption is not available, is the connection not encrypted at all?</a></li>
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+ <li><a href="#how-can-i-verify-cryptographic-status-with-a-sender">How can I verify cryptographic status with a sender?</a></li>
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+ <li><a href="#how-can-i-check-the-encryption-of-messages">How can I check the encryption of messages?</a></li>
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+ <li><a href="#which-standards-are-used-for-end-to-end-encryption">Which standards are used for end-to-end-encryption?</a></li>
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+ <li><a href="#what-is-the-difference-between-verified-groups-and-11-chats-with-verified-contacts">What is the difference between verified groups and 1:1 chats with verified contacts?</a></li>
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+ <li><a href="#does-delta-chat-support-perfect-forward-secrecy">Does Delta Chat support Perfect Forward Secrecy?</a></li>
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+ <li><a href="#how-does-delta-chat-protect-my-metadata">How does Delta Chat protect my Metadata?</a></li>
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+ <li><a href="#can-i-reuse-my-existing-private-key">Can I reuse my existing private key?</a></li>
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+ <li><a href="#i-cant-import-my-existing-pgp-key-into-delta-chat">I can’t import my existing PGP key into Delta Chat.</a></li>
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+ <li><a href="#why-dont-you-use-pep-pretty-easy-privacy">Why don’t you use pEp (pretty easy privacy)?</a></li>
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+ </ul>
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+ </li>
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+ <li><a href="#multiclient">Multi-client</a>
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+ <ul>
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+ <li><a href="#can-i-use-delta-chat-on-multiple-devices-at-the-same-time">Can I use Delta Chat on multiple devices at the same time?</a></li>
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+ <li><a href="#are-there-any-plans-for-introducing-a-delta-chat-web-client">Are there any plans for introducing a Delta Chat Web Client?</a></li>
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+ <li><a href="#why-can-i-choose-not-to-watch-the-inbox">Why can I choose not to watch the Inbox?</a></li>
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+ <li><a href="#what-is-the-send-copy-to-self-setting-good-for">What is the “Send Copy to Self” setting good for?</a></li>
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+ <li><a href="#why-can-i-choose-to-watch-the-sent-folder">Why can I choose to watch the “Sent” folder?</a></li>
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+ <li><a href="#why-can-i-choose-not-to-watch-the-deltachat-folder">Why can I choose not to watch the DeltaChat folder?</a></li>
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+ </ul>
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+ </li>
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+ <li><a href="#miscellaneous">Miscellaneous</a>
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+ <ul>
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+ <li><a href="#does-delta-chat-work-with-my-e-mail-provider">Does Delta Chat work with <em>my</em> e-mail-provider?</a></li>
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+ <li><a href="#if-delta-chat-uses-e-mail-is-it-really-an-instant-messenger">If Delta Chat uses E-Mail, is it really an <em>Instant</em> Messenger?</a></li>
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+ <li><a href="#is-delta-chat-compatible-with-protonmail--tutanota--criptext">Is Delta Chat compatible with Protonmail / Tutanota / Criptext?</a></li>
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+ <li><a href="#im-interested-in-the-technical-details-can-you-tell-me-more">I’m interested in the technical details. Can you tell me more?</a></li>
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+ <li><a href="#how-are-delta-chat-developments-funded">How are Delta Chat developments funded?</a></li>
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+ </ul>
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+ </li>
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+</ul>
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+
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+
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+
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+<p class="back"><a href="#top">^</a></p><h2 id="apa-itu-delta-chat">
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+
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+
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+ Apa itu Delta Chat? <a href="#apa-itu-delta-chat" class="anchor"></a>
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+
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+
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+ </h2>
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+
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+<p>Delta Chat adalah aplikasi obrolan baru yang mengirim pesan melalui email, diekripsi jika memungkinkan, dengan Autocrypt
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+<strong>Anda tidak harus mendaftar di mana saja, cukup gunakan akun email Anda yang ada dengan Delta Chat.</strong></p>
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+
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+<p><img style="float:right; width:50%; max-width:360%; margin:1em;" src="../delta-what-optim.png" /></p>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="bagaimana-saya-bisa-menemukan-orang-untuk-diajak-ngobrol">
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+
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+
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+ Bagaimana Saya bisa menemukan orang untuk diajak ngobrol? <a href="#bagaimana-saya-bisa-menemukan-orang-untuk-diajak-ngobrol" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<p>Dengan Delta Chat, anda dapat mengetik ke semua alamat email yang ada - meskipun
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+si penerima tidak menggunakan aplikasi Delta Chat. Tidak perlu bagi
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+penerima untuk menginstal aplikasi yang sama seperti milik Anda, seperti halnya dengan messenger-messanger lain.</p>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="apa-kelebihan-delta-chat-dibandingkan-dengan-messenger-lain">
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+
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+
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+ Apa kelebihan Delta Chat dibandingkan dengan messenger lain? <a href="#apa-kelebihan-delta-chat-dibandingkan-dengan-messenger-lain" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<ul>
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+ <li><em>Independen</em> dari perusahaan atau layanan apa pun. _Anda memiliki data Anda.</li>
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+ <li>Data Anda tidak disimpan di server pusat kecuali semua pengguna menggunakan
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+server email yang sama</li>
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+ <li>Anda tidak mendistribusikan buku alamat Anda kepada siapa pun.</li>
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+ <li><em>Cepat</em> dengan menggunakan Push-IMAP.</li>
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+ <li><em>Pengguna terluas</em> - penerima <em>tidak</em> menggunakan Delta Chat dapat dihubungi juga.</li>
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+ <li><em>Kompatibel</em> - tidak hanya untuk dirinya sendiri.</li>
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+ <li>Antarmuka pengguna <em>Elegan__ dan _simpel</em>.</li>
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+ <li>Sistem <em>Terdistribusi</em>.</li>
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+ <li><em>Tidak Spam</em> - hanya pesan dari pengguna yang dikenal yang ditampilkan secara default.</li>
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+ <li><em>Diandalkan</em> - aman untuk penggunaan profesional.</li>
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+ <li><em>Terpercaya</em> - bahkan dapat digunakan untuk pesan bisnis.</li>
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+ <li>Perangkat lunak gratis berbasis <em>Copyleft</em> dan <em>Standards</em>.</li>
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+</ul>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="pesan-mana-yang-muncul-di-delta-chat">
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+
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+
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+ Pesan mana yang muncul di Delta Chat? <a href="#pesan-mana-yang-muncul-di-delta-chat" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<p>Delta Chat otomatis menampilkan:</p>
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+
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+<ul>
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+ <li>Pesan-pesan dari kontak di <strong>buku alamat</strong> Anda</li>
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+ <li>Pesan dari kontak <strong>dihubungi oleh Anda</strong></li>
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+ <li><strong>Balasan</strong> untuk pesan yang dikirim oleh Anda</li>
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+</ul>
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+
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+<p>Pesan lain tidak muncul secara otomatis, dan dapat ditemukan di <strong>Permintaan kontak</strong>. Jika diinginkan obrolan bisa dimulai dari sana.</p>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="bagaimana-dengan-spam">
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+
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+
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+ Bagaimana dengan spam? <a href="#bagaimana-dengan-spam" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<ul>
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+ <li>Pesan dalam folder spam umum diabaikan dan alamat yang ada tidak dianggap sebagai kontak yang dikenal.</li>
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+ <li>Karena pesan dari kontak yang tidak dikenal tidak muncul secara otomatis, biasanya, tidak ada <strong>spam</strong>.</li>
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+ <li>Namun, jika diperlukan, Anda dapat <strong>memblokir</strong> kontak apa pun.</li>
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+</ul>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="apakah-delta-chat-mendukung-gambar-vidio-dan-lampiran-lainnya">
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+
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+
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+ Apakah Delta Chat mendukung gambar, vidio dan lampiran lainnya? <a href="#apakah-delta-chat-mendukung-gambar-vidio-dan-lampiran-lainnya" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<p>Ya, Di samping teks biasa, semua lampiran email ditampilkan sebagai pesan terpisah. Pesan keluar mendapatkan lampiran sesuai kebutuhan secara otomatis.</p>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="siapa-yang-dapat-melihat-foto-profil-saya">
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+
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+
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+ Siapa yang dapat melihat Foto Profil saya? <a href="#siapa-yang-dapat-melihat-foto-profil-saya" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<ul>
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+ <li>
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+ <p>Anda dapat menambahkan gambar profil di pengaturan Anda. Jika Anda menulis ke kontak Anda
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+atau menambahkannya melalui kode QR, mereka secara otomatis melihatnya sebagai gambar profil Anda.</p>
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+ </li>
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+ <li>
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+ <p>Kontak yang tidak menggunakan Delta Chat melihatnya sebagai lampiran E-Mail.</p>
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+ </li>
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+ <li>
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+ <p>Untuk alasan kerahasiaan, tidak ada satupun yang dapat melihat Foto Profil anda hingga anda menulis
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+sebuah pesan kepada mereka.</p>
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+ </li>
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+ <li>
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+ <p>Gambar profil Anda tidak dikirim dengan setiap pesan, tetapi cukup secara teratur
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+kontak Anda akan menerima kembali gambar profil Anda, bahkan jika mereka menambahkan yang perangkat
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+baru</p>
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+ </li>
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+</ul>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="apakah-delta-chat-mendukung-email-html">
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+
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+
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+ Apakah Delta Chat mendukung email HTML? <a href="#apakah-delta-chat-mendukung-email-html" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<ul>
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+ <li>Ya. Bila pesan email masuk tidak memiliki bagian teks biasa, email-email HTML akan dikonversi ke teks biasa dalam aplikasi. Email-email yang dikirim selalu menggunakan teks biasa.</li>
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+</ul>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="mengapa-saya-harus-memasukkan-kata-sandi-e-mail-saya-ke-delta-chat-apakah-ini-aman">
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+
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+
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+ Mengapa saya harus memasukkan kata sandi E-Mail saya ke Delta Chat? Apakah ini aman? <a href="#mengapa-saya-harus-memasukkan-kata-sandi-e-mail-saya-ke-delta-chat-apakah-ini-aman" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<p>As with other E-Mail programs like Thunderbird, K9-Mail, or Outlook, the
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+program needs the password so you can use it to send mails. Of course, the
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+password is stored only on your device. The password is only transmitted to
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+your E-Mail provider (when you login), which has access to your mails anyway.</p>
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+
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+<p>If you use an E-Mail provider with OAuth2 support like gmail.com or yandex.ru,
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+there is no need to store your password on the device. In this case, only an
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+access token is used.</p>
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+
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+<p>Karena Delta Chat adalah Open Source, Anda dapat memeriksa file <a href="https://github.com/deltachat/deltachat-core-rust/blob/master/src/login_param.rs">Source
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+Code</a>
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+jika Anda ingin memverifikasi bahwa kredensial Anda ditangani dengan aman. Kami bahagia
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+tentang umpan balik yang membuat aplikasi lebih aman untuk semua pengguna kami.</p>
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+
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+ <p class="back"><a href="#top">^</a></p><h3 id="izin-apa-yang-dibutuhkan-delta-chat">
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+
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+
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+ Izin apa yang dibutuhkan Delta Chat? <a href="#izin-apa-yang-dibutuhkan-delta-chat" class="anchor"></a>
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+
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+
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+ </h3>
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+
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+<p>Tergantung operasi sistem yang digunakan,
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+Anda mungkin diminta untuk memberikan izin ke aplikasi.
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+Inilah yang dilakukan Delta Chat dengan izin ini:</p>
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+
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+<ul>
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+ <li>Kamera <em>(dapat dianulir)</em></li>
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+ <li>ambil gambar dan video: untuk mengirim Foto</li>
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+ <li>Kontak <em>(dapat dianulir)</em></li>
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+ <li>baca kontak Anda: untuk menemukan kontak untuk diajak ngobrol</li>
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+ <li>Lokasi <em>(dapat dianulir)</em></li>
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+ <li>Akses perkiraan lokasi (sumber lokasi jaringan): untuk fitur streaming lokasi</li>
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+ <li>Akses lokasi yang tepat (GPS dan sumber lokasi jaringan): untuk fitur streaming lokasi</li>
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+ <li>Mikrofon <em>(dapat dianulir)</em></li>
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+ <li>rekam audio: untuk pesan audio</li>
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+ <li>Penyimpanan <em>(dapat dianulir)</em></li>
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+ <li>memodifikasi atau menghapus isi kartu SD Anda: untuk mengunduh lampiran pesan</li>
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+ <li>baca isi kartu SD Anda: untuk berbagi file dengan kontak Anda</li>
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+ <li>Kemampuan aplikasi lainnya</li>
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+ <li>ubah pengaturan audio Anda: sehingga Anda dapat memilih nada dering dan volume untuk pemberitahuan dan pesan audio</li>
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+ <li>berjalan saat startup: jadi Anda tidak harus memulai Delta Chat secara manual</li>
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+ <li>Kontrol getaran: untuk notifikasi</li>
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+ <li>lihat koneksi jaringan: untuk terhubung ke penyedia E-Mail Anda</li>
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+ <li>mencegah ponsel dari tidur: sehingga Anda dapat lebih mudah menyalin kode keamanan selama Pesan Pengaturan Autocrypt</li>
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+ <li>memiliki akses jaringan penuh: untuk terhubung ke penyedia E-Mail Anda</li>
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+ <li>lihat koneksi Wi-Fi: untuk terhubung ke penyedia E-Mail Anda</li>
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+ <li>minta untuk mengabaikan optimisasi baterai: untuk pengguna yang ingin menerima pesan setiap saat</li>
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+</ul>
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+
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+ <p class="back"><a href="#top">^</a></p><h2 id="grup">
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+
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+
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+ Grup <a href="#grup" class="anchor"></a>
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+
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+
|
|
|
+ </h2>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="pembuatan-grup">
|
|
|
+
|
|
|
+
|
|
|
+ Pembuatan grup <a href="#pembuatan-grup" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Select <strong>New chat</strong> and then <strong>New group</strong> from the menu in the upper right corner or hit the corresponding button on Android/iOS.</li>
|
|
|
+ <li>On the following screen, select the <strong>group members</strong> and define a <strong>group name</strong>. You can also select a <strong>group avatar</strong>.</li>
|
|
|
+ <li>As soon as you write the <strong>first message</strong> in the group, all members are informed about the new group and can answer in the group (as long as you do not write a message in the group the group is invisible to the members).</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="tambahkan-anggota-ke-grup">
|
|
|
+
|
|
|
+
|
|
|
+ Tambahkan anggota ke grup <a href="#tambahkan-anggota-ke-grup" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Every group member has the <strong>same rights</strong> as any other. For this reason every one can delete every member or add new ones.</li>
|
|
|
+ <li>To add or delete members, click on the group name in the chat.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="what-is-a-verified-group-why-is-it-experimental">
|
|
|
+
|
|
|
+
|
|
|
+ What is a verified group? Why is it experimental? <a href="#what-is-a-verified-group-why-is-it-experimental" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>A verified group is a chat that guarantees safety against an active
|
|
|
+attacker. All Messages in a verified chat view are e2e-encrypted, and
|
|
|
+members can join by scanning a “QR invite code”. All members are thus
|
|
|
+connected with each other through a chain of invites, which guarantee
|
|
|
+cryptographic consistency against active network or provider attacks.
|
|
|
+See <a href="https://countermitm.readthedocs.io/en/latest/new.html">countermitm.readthedocs.io</a>
|
|
|
+for the R&D behind this feature.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>As of Dec 2019, a “verified group” remains an experimental feature.
|
|
|
+It is continuously improved and many bugs have been fixed since the
|
|
|
+original introduction in 2018. However, there remain cases, especially
|
|
|
+with large groups where inconsistencies can occur, or messages become
|
|
|
+unreadable. Early 2020 a security review is upcoming, and several new
|
|
|
+developments around qr-join protocols are taking place so chances
|
|
|
+are we remove the “experimental” label not too far in the future.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="i-have-deleted-myself-by-accident">
|
|
|
+
|
|
|
+
|
|
|
+ I have deleted myself by accident. <a href="#i-have-deleted-myself-by-accident" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>As you’re no longer a group member, you cannot add yourself again.
|
|
|
+However, no problem, just ask any other group member in a normal chat to re-add you.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="i-do-not-want-to-receive-the-messages-of-a-group-any-longer">
|
|
|
+
|
|
|
+
|
|
|
+ I do not want to receive the messages of a group any longer. <a href="#i-do-not-want-to-receive-the-messages-of-a-group-any-longer" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>Either delete yourself from the member list or delete the whole chat.
|
|
|
+If you want to join the group again later on, ask another group member to add you again.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>As an alternative, you can also “Mute” a group - doing so means you get all messages and
|
|
|
+can still write, but are no longer notified of any new messages.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="what-do-double-ticks-mean-in-group-messages-has-everyone-read-my-message-now">
|
|
|
+
|
|
|
+
|
|
|
+ What do double ticks mean in group messages? Has everyone read my message now? <a href="#what-do-double-ticks-mean-in-group-messages-has-everyone-read-my-message-now" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>A message shows double ticks after more than half of the recipients have
|
|
|
+seen the message on their display.</li>
|
|
|
+ <li>Note that some recipients might have disabled read-receipts for
|
|
|
+privacy-reasons.</li>
|
|
|
+ <li>If more than 50% in a group disabled read receipts, the double ticks will
|
|
|
+never show up. For more detailed information, see
|
|
|
+<a href="https://delta.chat/en/2017-07-06-read-receipts-and-social-pressure">this blogpost</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h2 id="encryption">
|
|
|
+
|
|
|
+
|
|
|
+ Encryption <a href="#encryption" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h2>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="does-delta-chat-support-end-to-end-encryption">
|
|
|
+
|
|
|
+
|
|
|
+ Does Delta Chat support end-to-end-encryption? <a href="#does-delta-chat-support-end-to-end-encryption" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>Yes. Delta Chat implements the Autocrypt Level 1 standard and can
|
|
|
+thus E2E-encrypt messages with other Autocrypt-capable apps.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Delta Chat also supports a strong form of end-to-end encryption that is
|
|
|
+even safe against active attacks, see “verified groups” further below.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="what-do-i-have-to-do-to-activate-the-end-to-end-encryption">
|
|
|
+
|
|
|
+
|
|
|
+ What do I have to do to activate the end-to-end-encryption? <a href="#what-do-i-have-to-do-to-activate-the-end-to-end-encryption" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>Tidak ada.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Delta Chat apps (and other <a href="https://autocrypt.org">Autocrypt</a>-compatible
|
|
|
+e-mail apps) share the keys required for end-to-end-encryption automatically
|
|
|
+as the first messages are sent.
|
|
|
+After this, all subsequent messages are encrypted end-to-end automatically.
|
|
|
+If one of the chat partners uses a non-Autocrypt e-mail app, subsequent
|
|
|
+messages are not encrypted until an Autocrypt-compliant app is available again.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>If you want to rather avoid end-to-end-encrypted e-mails by default,
|
|
|
+use the corresponding Autocrypt setting in “Settings” or “Advanced settings”.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="if-end-to-end-encryption-is-not-available-is-the-connection-not-encrypted-at-all">
|
|
|
+
|
|
|
+
|
|
|
+ If end-to-end-encryption is not available, is the connection not encrypted at all? <a href="#if-end-to-end-encryption-is-not-available-is-the-connection-not-encrypted-at-all" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>With most mail servers, Delta Chat establishes <em>transport encryption</em>
|
|
|
+(<a href="https://en.wikipedia.org/wiki/Transport_Layer_Security">TLS</a>).
|
|
|
+This only secures the connection between your device and your e-mail
|
|
|
+server. Whereas e2e-encryption provides safety between
|
|
|
+your device and a friend’s device.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="how-can-i-verify-cryptographic-status-with-a-sender">
|
|
|
+
|
|
|
+
|
|
|
+ How can I verify cryptographic status with a sender? <a href="#how-can-i-verify-cryptographic-status-with-a-sender" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>If you are within immediate distance of the chat partner:</p>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Select <strong>QR Invite code</strong> on one device and then <strong>Scan QR code</strong>
|
|
|
+on the other one and scan the code. If both devices are online,
|
|
|
+they will introduce a chat channel with each-other (if it doesn’t exist already)
|
|
|
+and the encryption keys will also be verified. Both will see a
|
|
|
+“sender verified” system message in their 1:1 chat.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+<p>If you are not near the chat partner, you can check the status manually in the “Encryption” dialog
|
|
|
+(user profile on Android/iOS or right-click a user’s chat-list item on desktop):</p>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>For end-to-end-encryption, Delta Chat shows two fingerprints there.
|
|
|
+If the same fingerprints appear on your chat partner’s device,
|
|
|
+the connection is safe.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>For transport encryption, this state is just shown there</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="how-can-i-check-the-encryption-of-messages">
|
|
|
+
|
|
|
+
|
|
|
+ How can I check the encryption of messages? <a href="#how-can-i-check-the-encryption-of-messages" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>A little <strong>padlock</strong> shown beside a message denotes whether the message is end-to-end-encrypted from from the given sender.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>If there is <strong>no padlock</strong>, the message is usually transported unencrypted e.g. because you or the sender have turned off end-to-end-encryption, or the sender uses an app without support for end-to-end-encryption.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="which-standards-are-used-for-end-to-end-encryption">
|
|
|
+
|
|
|
+
|
|
|
+ Which standards are used for end-to-end-encryption? <a href="#which-standards-are-used-for-end-to-end-encryption" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p><a href="https://autocrypt.org">Autocrypt</a> is used for establishing
|
|
|
+e2e-encryption with other Delta Chat and other Autocrypt-capable mail apps.
|
|
|
+Autocrypt uses a limited subset of OpenPGP functionality.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Delta Chat implements <a href="https://countermitm.readthedocs.io/en/latest/new.html">countermitm setup-contact and verified-group protocols</a> to achieve protection against active network attacks. This goes beyond the opportunistic
|
|
|
+base protection of Autocrypt Level 1, while maintaining its ease of use.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="what-is-the-difference-between-verified-groups-and-11-chats-with-verified-contacts">
|
|
|
+
|
|
|
+
|
|
|
+ What is the difference between verified groups and 1:1 chats with verified contacts? <a href="#what-is-the-difference-between-verified-groups-and-11-chats-with-verified-contacts" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>1:1 chats with a verified contact and verified groups are not the same, even
|
|
|
+if there are only 2 people in the verified group. One difference is that you
|
|
|
+could easily add more people to the group, but there are other implications as
|
|
|
+well.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Verified groups are invariably secured. Any breakage (cleartext or wrongly
|
|
|
+signed messages etc.) will be flagged and such messages will not be shown in
|
|
|
+this chat. You can trust all messages in this verified-checkmark chat to have
|
|
|
+not been read/altered by middle parties.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>1:1 chats are opportunistic, it is meant to allow people to communicate no
|
|
|
+matter if they change e-mail clients, devices, setups etc. That’s why there
|
|
|
+is no verification checkmark, even if you have verified the contact.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="does-delta-chat-support-perfect-forward-secrecy">
|
|
|
+
|
|
|
+
|
|
|
+ Does Delta Chat support Perfect Forward Secrecy? <a href="#does-delta-chat-support-perfect-forward-secrecy" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>No, OpenPGP doesn’t support Perfect Forward Secrecy. Perfect Forward Secrecy
|
|
|
+works session-oriented, but E-Mail is asynchronous by nature
|
|
|
+and often used from multiple devices independently. This means that if your
|
|
|
+Delta Chat private key is leaked, and someone has a record
|
|
|
+of all your in-transit messages, they will be able to read them.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Note that if anyone has seized or hacked your running phone, they will
|
|
|
+typically be able to read all messages, no matter if Perfect Forward Secrecy
|
|
|
+is in place or not. Having access to a single device from a member of a group,
|
|
|
+will typically expose a lot of the social graph. Using e-mail addresses that
|
|
|
+are not easily tracked back to persons helps group members to stay safer from
|
|
|
+the effects of device seizure.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>We are sketching ways to protect communications better against the event
|
|
|
+of device seizure.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="how-does-delta-chat-protect-my-metadata">
|
|
|
+
|
|
|
+
|
|
|
+ How does Delta Chat protect my Metadata? <a href="#how-does-delta-chat-protect-my-metadata" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>As Delta Chat is a decentralized messenger, the metadata of Delta Chat users
|
|
|
+are not stored on a single central server. However, they are stored on the mail
|
|
|
+servers of the sender and the recipient of a message.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Each mail server currently knows about who sent and who received a message by
|
|
|
+inspecting the unencrypted To/Cc headers and thus determine which e-mail addresses
|
|
|
+are part of a group. Delta Chat itself could avoid unencrypted To/Cc headers quite
|
|
|
+and always put them only into the encrypted section. See
|
|
|
+<a href="https://github.com/deltachat/deltachat-core-rust/issues/1032">Avoid sending To/CC headers for verified groups</a>.
|
|
|
+For opportunistic chats the main concern is how it affects other mail apps who
|
|
|
+might participate in chats.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Many other e-mail headers, in particular the “Subject” header, are
|
|
|
+end-to-end-encryption protected, see also this upcoming <a href="https://datatracker.ietf.org/doc/draft-autocrypt-lamps-protected-headers/">IETF
|
|
|
+RFC</a>.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="can-i-reuse-my-existing-private-key">
|
|
|
+
|
|
|
+
|
|
|
+ Can I reuse my existing private key? <a href="#can-i-reuse-my-existing-private-key" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>Yes. The best way is to send an Autocrypt Setup Message from the other e-mail client. Look for something like <strong>Start Autocrypt Setup Transfer</strong> in the settings of the other client and follow the instructions shown there.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Alternatively, you can import the key manually in “Settings” or “Advanced settings” and then “Import secret keys”. Caution: Make sure the key is not protected by a password, or remove the password beforehand.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+<p>If you don’t have a key or don’t even know you would need one - don’t worry: Delta Chat generates keys as needed, you don’t have to hit a button for it.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="i-cant-import-my-existing-pgp-key-into-delta-chat">
|
|
|
+
|
|
|
+
|
|
|
+ I can’t import my existing PGP key into Delta Chat. <a href="#i-cant-import-my-existing-pgp-key-into-delta-chat" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>The most likely cause is that your key is encrypted and/or uses
|
|
|
+a password. Such keys are not supported by Delta Chat. You could remove the
|
|
|
+passphrase encryption and the password and try the import again. If you want
|
|
|
+to keep your passphrase you’ll have to create an e-mail alias for use
|
|
|
+with Delta Chat such that Delta Chat’s key is tied to this e-mail alias.</p>
|
|
|
+
|
|
|
+<p>Delta Chat supports common OpenPGP private key formats, however, it
|
|
|
+is unlikely that private keys from all sources will be fully supported. This
|
|
|
+is not the main goal of Delta Chat. In fact, the majority of new users
|
|
|
+will not have any key prior to using Delta Chat.
|
|
|
+We do, however, try to support private keys from as many sources as possible.</p>
|
|
|
+
|
|
|
+<p>Removing the password from the private key will depend on the
|
|
|
+software you use to manage your PGP keys. With Enigmail, you can set your
|
|
|
+password to an empty value in the Key Management window. With GnuPG you can set
|
|
|
+it <a href="https://github.com/deltachat/deltachat-android/issues/98#issuecomment-378383429">via the command
|
|
|
+line</a>.
|
|
|
+For other programs, you should be able to find a solution online.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="why-dont-you-use-pep-pretty-easy-privacy">
|
|
|
+
|
|
|
+
|
|
|
+ Why don’t you use pEp (pretty easy privacy)? <a href="#why-dont-you-use-pep-pretty-easy-privacy" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Delta Chat uses the Autocrypt e2e-encryption standard. For
|
|
|
+a discussion of Autocrypt and pEp, see the <a href="https://autocrypt.org/faq.html#how-does-autocrypt-differ-from-pep">Autocrypt
|
|
|
+FAQ</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h2 id="multiclient">
|
|
|
+
|
|
|
+
|
|
|
+ Multi-client <a href="#multiclient" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h2>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="can-i-use-delta-chat-on-multiple-devices-at-the-same-time">
|
|
|
+
|
|
|
+
|
|
|
+ Can I use Delta Chat on multiple devices at the same time? <a href="#can-i-use-delta-chat-on-multiple-devices-at-the-same-time" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>If you want to use the <strong>same account</strong> on different devices, you should export
|
|
|
+a backup from the old device, and import it into the new device:</p>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>On the old device, go to “Settings” or “Settings / Chats and media” and then to “Backup”. Enter your
|
|
|
+screen unlock PIN, pattern, or password. Then you can click on “Start
|
|
|
+Backup”. This saves the backup file to your device. Now you have to transfer
|
|
|
+it to the other device somehow.</li>
|
|
|
+ <li>On the new device, on the login screen, instead of logging into your email
|
|
|
+account, choose “Import Backup”. After import, your conversations, encryption
|
|
|
+keys, and media should be copied to the new device.</li>
|
|
|
+ <li>You are now synchronized, and can use both devices for sending and receiving
|
|
|
+E2E-encrypted messages with your communication partners.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="are-there-any-plans-for-introducing-a-delta-chat-web-client">
|
|
|
+
|
|
|
+
|
|
|
+ Are there any plans for introducing a Delta Chat Web Client? <a href="#are-there-any-plans-for-introducing-a-delta-chat-web-client" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>There are no immediate plans but some preliminary thoughts.</li>
|
|
|
+ <li>There are 2-3 avenues for introducing a Delta Chat Web Client, but all are
|
|
|
+significant work. For now, we focus on getting stable releases into all
|
|
|
+app stores (Google Play/iOS/Windows/macOS/Linux repositories) as native apps.</li>
|
|
|
+ <li>If you need a Web Client, because you are not allowed to install software on
|
|
|
+the computer you work with, you can use the portable Windows Desktop Client,
|
|
|
+or the AppImage for Linux. You can find them on
|
|
|
+<a href="https://get.delta.chat">get.delta.chat</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="why-can-i-choose-not-to-watch-the-inbox">
|
|
|
+
|
|
|
+
|
|
|
+ Why can I choose not to watch the Inbox? <a href="#why-can-i-choose-not-to-watch-the-inbox" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>This is an experimental setting for some people who are experimenting with
|
|
|
+server-side rules. Not all providers support this, but with some you can move
|
|
|
+all mails with a “Chat-Version” header to the DeltaChat folder. Normally, this
|
|
|
+would be done by the Delta Chat app.</p>
|
|
|
+
|
|
|
+<p>Watching the Inbox makes sense to turn off, if you have both:</p>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>enabled a server-side rule to move all messages with Chat-Version header to the DeltaChat folder, and</li>
|
|
|
+ <li>have set the “Show classic emails” setting to “no, chats only”.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+<p>In this case, Delta Chat doesn’t need to watch the Inbox.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="what-is-the-send-copy-to-self-setting-good-for">
|
|
|
+
|
|
|
+
|
|
|
+ What is the “Send Copy to Self” setting good for? <a href="#what-is-the-send-copy-to-self-setting-good-for" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>Sending a copy of your messages to yourself ensures that you receive your own
|
|
|
+messages on all devices. If you have multiple devices and don’t turn it on, you
|
|
|
+see only the messages from other people, and the messages you send from the
|
|
|
+current device.</p>
|
|
|
+
|
|
|
+<p>The copy is sent to the Inbox, and then moved to the DeltaChat folder; it’s not
|
|
|
+put into the “Sent” folder. Delta Chat <em>never</em> uploads anything to the Sent
|
|
|
+folder because this would mean uploading a message twice (once through SMTP,
|
|
|
+and once through IMAP to Sent folder).</p>
|
|
|
+
|
|
|
+<p>The default setting for copy-to-self is “no”.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="why-can-i-choose-to-watch-the-sent-folder">
|
|
|
+
|
|
|
+
|
|
|
+ Why can I choose to watch the “Sent” folder? <a href="#why-can-i-choose-to-watch-the-sent-folder" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>The only reason one wants to watch the Sent folder is if you are using another
|
|
|
+mail program (like Thunderbird) next to your Delta Chat app, and want your MUA
|
|
|
+to participate in chat conversations.</p>
|
|
|
+
|
|
|
+<p>However, we recommend using the Delta Chat Desktop Client; you can download it
|
|
|
+on <a href="https://get.delta.chat">get.delta.chat</a>. The option to watch the “Sent”
|
|
|
+folder might go away in the future. It was introduced at a time where there was
|
|
|
+no Delta Chat Desktop client available on all platforms.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="why-can-i-choose-not-to-watch-the-deltachat-folder">
|
|
|
+
|
|
|
+
|
|
|
+ Why can I choose not to watch the DeltaChat folder? <a href="#why-can-i-choose-not-to-watch-the-deltachat-folder" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>Some people use Delta Chat as a regular email client, and want to use the Inbox
|
|
|
+folder for their mail, instead of the DeltaChat folder. If you disable “Watch
|
|
|
+DeltaChat folder”, you should also disable “move chat messages to DeltaChat”.
|
|
|
+Otherwise, deleting messages or multi-device setups might not work properly.</p>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h2 id="miscellaneous">
|
|
|
+
|
|
|
+
|
|
|
+ Miscellaneous <a href="#miscellaneous" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h2>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="does-delta-chat-work-with-my-e-mail-provider">
|
|
|
+
|
|
|
+
|
|
|
+ Does Delta Chat work with <em>my</em> e-mail-provider? <a href="#does-delta-chat-work-with-my-e-mail-provider" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>With a rather good chance: Yes :)<br />
|
|
|
+However, some providers need special options to work properly,
|
|
|
+see <a href="https://providers.delta.chat">Provider Overview</a></li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="if-delta-chat-uses-e-mail-is-it-really-an-instant-messenger">
|
|
|
+
|
|
|
+
|
|
|
+ If Delta Chat uses E-Mail, is it really an <em>Instant</em> Messenger? <a href="#if-delta-chat-uses-e-mail-is-it-really-an-instant-messenger" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Sending and receiving messages takes a few seconds, typically. Sometimes
|
|
|
+there are cases where it takes longer but that is arguably true as well for
|
|
|
+any other messenger.</li>
|
|
|
+ <li>Instant chatting works fast if both parties are actively using the app. It’s
|
|
|
+sometimes slower if the app is running in the background.</li>
|
|
|
+ <li>Receiving messages then can take minutes because both Android and iOS often
|
|
|
+stop Delta Chat from running in the background, and only wake it up
|
|
|
+occasionally. This artificial delay is usually worse on iOS than on Android.</li>
|
|
|
+ <li>Note that Delta Chat doesn’t use Google Cloud Messaging (GCM) or the Apple
|
|
|
+Push Notification Service (APNS), because this leads to user tracking and
|
|
|
+central control which Delta Chat aims to avoid as much as feasible.</li>
|
|
|
+ <li>However, Android and iOS kill apps running in the background is a
|
|
|
+problem for many legitimate apps. For more information, see
|
|
|
+<a href="https://dontkillmyapp.com/">dontkillmyapp.com</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="is-delta-chat-compatible-with-protonmail--tutanota--criptext">
|
|
|
+
|
|
|
+
|
|
|
+ Is Delta Chat compatible with Protonmail / Tutanota / Criptext? <a href="#is-delta-chat-compatible-with-protonmail--tutanota--criptext" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>Yes and No.</li>
|
|
|
+ <li>No, you can not use your Protonmail, Tutanota, or Criptext account with Delta
|
|
|
+Chat; they do not offer receiving mails via IMAP.</li>
|
|
|
+ <li>In any case you can use Delta Chat to send Messages to people who use
|
|
|
+Protonmail, Tutanota, or Criptext. Those messages will not be End-to-End
|
|
|
+encrypted, though. The End-to-End encryption those providers offer is only
|
|
|
+working inside their platforms, and not compatible with anyone outside.</li>
|
|
|
+ <li>Delta Chat can e2e-encrypt through any e-mail provider with any
|
|
|
+<a href="https://autocrypt.org/dev-status.html">Autocrypt-enabled e-mail app</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="im-interested-in-the-technical-details-can-you-tell-me-more">
|
|
|
+
|
|
|
+
|
|
|
+ I’m interested in the technical details. Can you tell me more? <a href="#im-interested-in-the-technical-details-can-you-tell-me-more" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>See <a href="https://github.com/deltachat/deltachat-core-rust/blob/master/standards.md#standards-used-in-delta-chat">Standards used in Delta Chat</a>.</li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ <p class="back"><a href="#top">^</a></p><h3 id="how-are-delta-chat-developments-funded">
|
|
|
+
|
|
|
+
|
|
|
+ How are Delta Chat developments funded? <a href="#how-are-delta-chat-developments-funded" class="anchor"></a>
|
|
|
+
|
|
|
+
|
|
|
+ </h3>
|
|
|
+
|
|
|
+<p>First of all, Delta Chat does not receive any Venture Capital and
|
|
|
+is not indebted, and under no pressure to produce huge profits, or to
|
|
|
+sell users and their friends and family to advertisers (or worse).</p>
|
|
|
+
|
|
|
+<p>Delta Chat developments have so far been funded from four major sources:</p>
|
|
|
+
|
|
|
+<ul>
|
|
|
+ <li>
|
|
|
+ <p>The <a href="https://nextleap.eu">NEXTLEAP</a> EU project funded the research
|
|
|
+and implementation of verified groups and setup contact protocols
|
|
|
+in 2017 and 2018.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>The <a href="https://opentechfund.org">Open Technology Fund</a> has given two grants.
|
|
|
+The first 2018/2019 grant (~$200K) majorly improved the Android app
|
|
|
+and allowed us to release a Desktop app beta version, and also
|
|
|
+moored our feature developments in UX research in human rights contexts,
|
|
|
+see our concluding <a href="https://delta.chat/en/2019-07-19-uxreport">Needfinding and UX report</a>.
|
|
|
+The second 2019/2020 grant (~$300K) is still ongoing and helps us to
|
|
|
+release Delta/iOS versions, to convert our core library to Rust, and
|
|
|
+to provide new features for all platforms. See the
|
|
|
+ongoing <a href="https://delta.chat/en/blog">blog posts</a> for more info.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>The <a href="https://nlnet.nl/">NLnet foundation</a> granted EUR 46K for
|
|
|
+completing Rust/Python bindings and instigating a Chat-bot ecosystem.</p>
|
|
|
+ </li>
|
|
|
+ <li>
|
|
|
+ <p>Last but by far not least, several pro-bono experts and enthusiasts contributed
|
|
|
+and contribute to Delta Chat developments without receiving money, or only
|
|
|
+small amounts. Without them, Delta Chat would not be where it is today, not
|
|
|
+even close.</p>
|
|
|
+ </li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+<p>The monetary funding mentioned above was organized by merlinux GmbH in
|
|
|
+Freiburg (Germany), and then distributed to almost a dozen contributors.</p>
|
|
|
+
|
|
|
+<p>Funding for 2020/2021 is yet to be determined. We are pursuing several
|
|
|
+opportunities with different organisations and partners. We also are
|
|
|
+considering to ask for donations. In fact, we experimentally started
|
|
|
+a little <a href="https://liberapay.com/delta.chat/">Delta Chat / Liberapay donation account</a>
|
|
|
+but have not published this yet. There were also around 3-4K so far
|
|
|
+donated to Bjoern’s (the original author of Delta Chat) paypal and bitcoin
|
|
|
+donation channels.</p>
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+</body></html><p class="back"><a href="#top">^</a></p>
|
B. Petersen