move standards.md here

the document standards.md exist since a long time
to get an overview but also a nice reference to get some links.

however, its placement in the android-repo is a bit unlogical,
probably comes from a time where there was only one implementation :)

as ios and desktop use the same standards and as
all acutal implementations are in the core,
we move it to the core repo.

android can have a link to the new place.
This commit is contained in:
B. Petersen
2020-05-19 12:48:21 +02:00
committed by Hocuri
parent 7e78d6a92b
commit 779a906d97

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# Standards used in Delta Chat
Some of the standards Delta Chat is based on:
Tasks | Standards
---------------------------------|---------------------------------------------
Transport | IMAP v4 ([RFC 3501](https://tools.ietf.org/html/rfc3501)), SMTP ([RFC 5321](https://tools.ietf.org/html/rfc5321)) and Internet Message Format (IMF, [RFC 5322](https://tools.ietf.org/html/rfc5322))
Embedded media | MIME Document Series ([RFC 2045](https://tools.ietf.org/html/rfc2045), [RFC 2046](https://tools.ietf.org/html/rfc2046)), Content-Disposition Header ([RFC 2183](https://tools.ietf.org/html/rfc2183)), Multipart/Related ([RFC 2387](https://tools.ietf.org/html/rfc2387))
Identify server folders | IMAP LIST Extension ([RFC 6154](https://tools.ietf.org/html/rfc6154))
Push | IMAP IDLE ([RFC 2177](https://tools.ietf.org/html/rfc2177))
Authorization | OAuth2 ([RFC 6749](https://tools.ietf.org/html/rfc6749))
End-to-end encryption | [Autocrypt Level 1](https://autocrypt.org/level1.html), OpenPGP ([RFC 4880](https://tools.ietf.org/html/rfc4880)) and Security Multiparts for MIME ([RFC 1847](https://tools.ietf.org/html/rfc1847))
Configuration assistance | [Autoconfigure](https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration) and [Autodiscover](https://technet.microsoft.com/library/bb124251(v=exchg.150).aspx)
Messenger functions | [Chat-over-Email](https://github.com/deltachat/deltachat-core-rust/blob/master/spec.md#chat-over-email-specification)
Detect mailing list | List-Id ([RFC 2919](https://tools.ietf.org/html/rfc2919)) and Precedence ([RFC 3834](https://tools.ietf.org/html/rfc3834))
Send and receive system messages | Multipart/Report Media Type ([RFC 6522](https://tools.ietf.org/html/rfc6522))
Return receipts | Message Disposition Notification (MDN, [RFC 8098](https://tools.ietf.org/html/rfc8098), [RFC 3503](https://tools.ietf.org/html/rfc3503)) using the Chat-Disposition-Notification-To header
Locations | KML ([Open Geospatial Consortium](http://www.opengeospatial.org/standards/kml/), [Google Dev](https://developers.google.com/kml/))