Changes for page Matrix

Last modified by Stefan Schwalb on 2023/08/28 20:39
From version 33.5
edited by Jonas Jelten
on 2023/08/28 16:46
Change comment: There is no comment for this version
To version 40.1
edited by Stefan Schwalb
on 2023/08/28 20:39
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.jelten
1 +XWiki.schwalb
Content
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1 1  {{toc/}}
2 2  
3 3  
4 -== What is Matrix? ==
4 += What is Matrix? =
5 5  
6 6  
7 -[[image:https://element.io/images/Ui-grad-homepage.png||alt="https://element.io/images/Ui-grad-homepage.png" height="677" width="942"]]
7 +[[image:matrix-element-uidemo.png||alt="Matrix user interface demo" height="641" width="892"]]
8 8  
9 9  
10 10  [[Matrix>>https://matrix.org/]] is a chat system very similar to E-Mail, but instantaneous and secure.
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19 19  Several apps exist, but we're going to go with "[[Element>>https://element.io/]]" for the sake of simplicity, as it's among the most fully-featured Matrix apps on the market.
20 20  )))
21 21  
22 -So People have their **account on one server** but can write messages **to anyone on other servers**.
22 +So people have their **account on one server** but can write messages **to anyone on other servers**.
23 23  
24 24  
25 -You can create[[ end-to-end encrypted>>https://en.wikipedia.org/wiki/End-to-end_encryption]] **personal or group chats** that are not stored and **not dependent on a central authority** like most other tools (MS Teams, WhatsApp, Zoom, ...).
25 +**Personal or group chats** are[[ end-to-end encrypted>>https://en.wikipedia.org/wiki/End-to-end_encryption]] and **not dependent on a central authority** like most other tools (MS Teams, WhatsApp, Zoom, ...) - anyone can host a Matrix server.
26 26  All your messages are **synced** between all your devices - web clients, desktop clients, smartphone apps.
27 27  For additional security, encryption keys of contacts can be verified and then stored as trusted.
28 28  
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30 30  
31 31  Messages are stored and synced between home servers.
32 32  
33 -A user typically has **one account** on one homeserver. You can use any homeserver of your choice - however [[ITO>>doc:CIT.ITO.WebHome]] offers two homeservers:
33 +A user typically has **one account** on one homeserver.
34 +You can use any homeserver of your choice - however **for TUM**, [[ITO>>doc:CIT.ITO.WebHome]] offers two homeservers:
34 34  
35 35  * **matrix.cit.tum.de** for CIT accounts: @username:cit.tum.de
36 36  * **matrix.tum.de** for TUM accounts: @username:tum.de
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37 37  
38 38  You only need to use one account and can communicate with any other homeserver of the world.
39 39  
40 -If you don't have a CIT or TUM account, you can use a public homeserver instead:
41 +If you don't have a CIT or TUM account, you can use a **public** homeserver instead:
41 41  
42 42  * matrix.org: [[https:~~/~~/app.element.io/#/register>>https://app.element.io/#/register]]
43 43  * or any other homeserver [[https:~~/~~/joinmatrix.org/servers/>>https://joinmatrix.org/servers/]]
44 -* or, host your own homeserver :)
45 +* or, [[host your own homeserver>>https://matrix-org.github.io/synapse/latest/]] 🤩
45 45  
46 46  To use your home server, you have to **use a client** that communicates with your homeserver.
47 47  
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74 74  
75 75  Follow [[the official guide>>https://matrix.org/docs/chat_basics/]] how to chat with Element 😎
76 76  
77 -You can create personal chats, group chats, and spaces for bundling multiple chatrooms to communicate with any other Matrix user in the world.
78 +You can create **personal chats**, **group chats**, and **spaces** for bundling multiple chatrooms to communicate with any other Matrix user in the world.
78 78  
79 79  
80 -== Invitation of TUM Users ==
81 += Invitation of TUM Users =
81 81  
82 82  When inviting TUM or CIT users to a chat, just enter the following Matrix IDs:
83 83  
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85 85  
86 86  (% class="box infomessage" %)
87 87  (((
88 -@CIT-ID:cit.tum.de     (e.g. @cooluser:tum.de)
89 +@CIT-ID:cit.tum.de     (e.g. @cooluser:cit.tum.de)
89 89  )))
90 90  
91 91  **For TUM Accounts:**
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104 104  
105 105  The invitation will then appear in the Matrix client of the just-added user and must be accepted.
106 106  
108 +**Search for User Names**
107 107  
108 -== Secure Backup ==
110 +To add a user to the user directory, he must become a member of a public chat room on the server, e.g. [[https:~~/~~/matrix.to/#/#announcements:tum.de>>https://matrix.to/#/#announcements:tum.de]] on matrix.tum.de, or share a private chat. Only after that his name will be displayed in the search field for persons.
109 109  
110 -Since end-to-end encryption stores decryption keys only on clients (the "end"), logging out of the last client would mean loosing all messages.
112 += Secure Backup =
111 111  
114 +Since end-to-end encryption stores decryption **keys only on clients** (the "end"), logging out of the last client would mean loosing all messages.
115 +
112 112  Matrix allows to create a encrypted backup of the decryption keys on your homeserver - with a separate passphrase.
113 113  
114 114  Matrix will ask you to set up your secure backup, and will request the password for the backup keys if needed.