Messaging layer security: Encrypting a group chat

  Рет қаралды 8,452

Chalk Talk

Chalk Talk

Жыл бұрын

How do you keep the messages in a group chat secure? Messaging layer security (MLS).
The Double Ratchet algorithm provides end-to-end encryption for text messages between two people. But securing a group chat is much harder. MLS is the first standardized multi-party “key exchange” - a protocol for communication among groups of people or devices.
Resources:
Video on the Double Ratchet algorithm: • Double ratchet algorit...
MLS Working Group: messaginglayersecurity.rocks/
Created by Kelsey Houston-Edwards
Graphics by Ray Lux
Sponsored by Wire wire.com
Thanks to Britta Hale for the helpful conversation about MLS

Пікірлер: 12
@oncedidactic
@oncedidactic 9 ай бұрын
So easy to understand the concepts and see deeper into the space of problems and solutions. Awesome!! Thanks!
@eapiii
@eapiii Жыл бұрын
Great set of videos
@fusionsid
@fusionsid Жыл бұрын
Thank you for this and the other video, Im currently making a chat app and couldnt find any good videos explaining group encryption
@hashtag9990
@hashtag9990 Жыл бұрын
hey gentleman, would you like to share your wisdom? we want to implement encryption in our app too, and we are not knowledgeable enough, ofcourse you don't have to share your wisdom for nothing.
@tonpa
@tonpa 10 ай бұрын
Perfection!
@lollol1992lollol
@lollol1992lollol 4 ай бұрын
00:00 - Introduction and the Challenge 00:54 - some Ideas how to solve it 00:54 - Parallelized Conversation 01:40 - Key Systems 02:17 - Messaging Layer Security (MLS) (Tree System) 03:37 - Key System 05:00 - Key Schedule 06:50 - Root Key change 09:53 - Remove Group Member 11:13 - Conclusion
@charleskhenry
@charleskhenry 7 ай бұрын
Amazing.
@guzh
@guzh 2 ай бұрын
It is unclear how F gets its private key at 6'16''. It is also unclear why the rachet can go up the tree as well as down the tree.
@markcuello5
@markcuello5 Жыл бұрын
HELP
@leesweets4110
@leesweets4110 10 ай бұрын
Epic? Quit saying epic. Its clearly the other pronunciation. Because your way of doing it is ambiguous with another word.
@PrecariousPosition
@PrecariousPosition 10 ай бұрын
I've never heard it aloud that way. How bizarre. I wouldn't have thought it was a controversial word
@StevenAkinyemi
@StevenAkinyemi 8 ай бұрын
Ikr. If pronouncing it as epic is ambigous, why not save us the confusion?
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