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1 Used Protocols
2 ===============
3
4 * [Home](help)
5
6 Friendicas DFRN Protocol
7 ---
8
9 * [Document with the DFRN specification](spec/dfrn2.pdf)
10 * [Schema of the contact request process](spec/dfrn2_contact_request.png)
11 * [Schema of the contact request confirmation](spec/dfrn2_contact_confirmation.png)
12 * [Description of the message flow](help/Message-Flow)
13
14 ActivityStreams
15 ---
16
17 Friendica is using ActivityStreams in version 1.0 for its activities and object types.
18 Additional types are used for non standard activities.
19
20 * [Link to the specification](http://activitystrea.ms/head/activity-schema.html)
21 * [List of used ActivityStreams verbs and object types.](https://github.com/friendica/friendica/wiki/ActivityStreams)
22
23 Salmon
24 ---
25
26 Salmon is used as a message exchange protocol for replies and mentions.
27
28 * [Link to the protocol summary](http://www.salmon-protocol.org/salmon-protocol-summary)
29
30 Portable Contacts
31 ---
32
33 Portable Contacts is used for friends lists.
34
35 * [Link to the specification](https://web.archive.org/web/20160426223008/http://portablecontacts.net/draft-spec.html) (Link to archive.org)
36
37 pubsubhubbub
38 ---
39
40 pubsubhubbub is used for OStatus.
41
42 * [Link to the specification](https://pubsubhubbub.github.io/PubSubHubbub/pubsubhubbub-core-0.4.html)