Matrix with Martin Albrecht and Dan Jones

1

Introduction

00:00 • 2min

2

Matrix

01:43 • 2min

3

The Key Idea Is Matrix Derivatives

03:59 • 2min

4

Is Matrix More Like Slack Than Signal?

05:32 • 2min

5

What Should You Expect to Trust a Matrix Server?

07:45 • 2min

6

Authenticating Group Membership Requests in a Matrix Room

10:14 • 3min

7

Do You Consider Valid Attacks That the Designers Consider?

12:45 • 2min

8

What's the Point of Out of Band Verification?

14:24 • 2min

9

The Trusted Home Server Attack

16:25 • 2min

10

Is There a Multi Device Secure Messaging System?

18:38 • 3min

11

Is It Inherent in Their Design Choice?

21:13 • 2min

12

Getting Private Group Membership on Top of a Signal Service

23:02 • 2min

13

The Key Device Identifier Confusion

24:51 • 2min

14

Is That a Root Cryptographic Identity?

26:53 • 2min

15

The Man in the Middle Attack

28:38 • 3min

16

A Taxi Attack on Megalm

31:18 • 2min

17

A Semi Trusted Impersonation Attack in the Matrix Protocol

33:28 • 3min

18

What's the Impact of Injecting a Mega Home Session Into Another Client?

36:43 • 2min

19

You Can't Have Strong Confidentiality Without Authentication

38:29 • 2min

20

A C Attack to Inject a Megalm Session

40:05 • 3min

21

Is This a Bug in the Afflection Client?

42:49 • 2min

22

End to End Encrypted Backups

44:26 • 2min

23

The Paper Is Great, but You Can't Exploit It, Right?

46:06 • 2min

24

Is Message Backup a Thing That You Shouldn't Have?

47:40 • 3min

25

Doing Engineering of Any Kind of Level of Security Is Not Easy

50:17 • 4min

26

Is That All of Omega Old and the Secure Backup?

53:58 • 2min

27

The Impossibility of Multi Party Encrypted Group Messages

56:03 • 2min

28

MLS and Group Key Agreement - What's That?

57:57 • 2min

29

Is There a Security Definition for Group Membership?

59:48 • 2min

30

Is There Any Work on Formal Analysis of a Federated Environment?

01:01:31 • 2min

31

How Does Signal Work With a Federated Model?

01:03:34 • 3min