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1ca835f34d
The old draft was expired and abandoned, and the new draft should be possible to generate cleanly without breaking compatibility with old clients.
63 lines
4.3 KiB
Markdown
63 lines
4.3 KiB
Markdown
# Standards used in Delta Chat
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Some of the standards Delta Chat is based on:
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Tasks | Standards
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Transport | IMAP v4 ([RFC 3501][]), SMTP ([RFC 5321][]) and Internet Message Format (IMF, [RFC 5322][])
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Proxy | SOCKS5 ([RFC 1928][])
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Embedded media | MIME Document Series ([RFC 2045][], [RFC 2046][]), Content-Disposition Header ([RFC 2183][]), Multipart/Related ([RFC 2387][])
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Text and Quote encoding | Fixed, Flowed ([RFC 3676][])
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Reactions | Reaction: Indicating Summary Reaction to a Message ([RFC 9078][])
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Filename encoding | Encoded Words ([RFC 2047][]), Encoded Word Extensions ([RFC 2231][])
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Identify server folders | IMAP LIST Extension ([RFC 6154][])
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Push | IMAP IDLE ([RFC 2177][])
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Quota | IMAP QUOTA extension ([RFC 2087][])
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Seen status synchronization | IMAP CONDSTORE extension ([RFC 7162][])
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Client/server identification | IMAP ID extension ([RFC 2971][])
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Authorization | OAuth2 ([RFC 6749][])
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End-to-end encryption | [Autocrypt Level 1][], OpenPGP ([RFC 4880][]), Security Multiparts for MIME ([RFC 1847][]) and [“Mixed Up” Encryption repairing](https://tools.ietf.org/id/draft-dkg-openpgp-pgpmime-message-mangling-00.html)
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Detect/prevent active attacks | [securejoin][] protocols
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Compare public keys | [openpgp4fpr][] URI Scheme
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Header encryption | [Header Protection for Cryptographically Protected E-mail](https://datatracker.ietf.org/doc/draft-ietf-lamps-header-protection/)
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Configuration assistance | [Autoconfigure](https://web.archive.org/web/20210402044801/https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration) and [Autodiscover][]
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Messenger functions | [Chat-over-Email](https://github.com/deltachat/deltachat-core-rust/blob/master/spec.md#chat-mail-specification)
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Detect mailing list | List-Id ([RFC 2919][]) and Precedence ([RFC 3834][])
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User and chat colors | [XEP-0392][]: Consistent Color Generation
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Send and receive system messages | Multipart/Report Media Type ([RFC 6522][])
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Send and receive contact files | vCard ([RFC 6350][])
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Return receipts | Message Disposition Notification (MDN, [RFC 8098][], [RFC 3503][]) using the Chat-Disposition-Notification-To header
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Locations | KML ([Open Geospatial Consortium](http://www.opengeospatial.org/standards/kml/), [Google Dev](https://developers.google.com/kml/))
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[Autocrypt Level 1]: https://autocrypt.org/level1.html
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[securejoin]: https://securejoin.delta.chat/
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[openpgp4fpr]: https://metacode.biz/openpgp/openpgp4fpr
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[Autodiscover]: https://learn.microsoft.com/en-us/exchange/autodiscover-service-for-exchange-2013
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[XEP-0392]: https://xmpp.org/extensions/xep-0392.html
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[RFC 1847]: https://tools.ietf.org/html/rfc1847
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[RFC 1928]: https://tools.ietf.org/html/rfc1928
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[RFC 2045]: https://tools.ietf.org/html/rfc2045
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[RFC 2046]: https://tools.ietf.org/html/rfc2046
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[RFC 2047]: https://tools.ietf.org/html/rfc2047
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[RFC 2087]: https://tools.ietf.org/html/rfc2087
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[RFC 2177]: https://tools.ietf.org/html/rfc2177
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[RFC 2183]: https://tools.ietf.org/html/rfc2183
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[RFC 2231]: https://tools.ietf.org/html/rfc2231
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[RFC 2387]: https://tools.ietf.org/html/rfc2387
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[RFC 2919]: https://tools.ietf.org/html/rfc2919
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[RFC 2971]: https://tools.ietf.org/html/rfc2971
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[RFC 3501]: https://tools.ietf.org/html/rfc3501
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[RFC 3503]: https://tools.ietf.org/html/rfc3503
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[RFC 3676]: https://tools.ietf.org/html/rfc3676
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[RFC 3834]: https://tools.ietf.org/html/rfc3834
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[RFC 4880]: https://tools.ietf.org/html/rfc4880
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[RFC 5321]: https://tools.ietf.org/html/rfc5321
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[RFC 5322]: https://tools.ietf.org/html/rfc5322
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[RFC 6154]: https://tools.ietf.org/html/rfc6154
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[RFC 6350]: https://tools.ietf.org/html/rfc6350
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[RFC 6522]: https://tools.ietf.org/html/rfc6522
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[RFC 6749]: https://tools.ietf.org/html/rfc6749
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[RFC 7162]: https://tools.ietf.org/html/rfc7162
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[RFC 8098]: https://tools.ietf.org/html/rfc8098
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[RFC 9078]: https://tools.ietf.org/html/rfc9078
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