Warmwasserwerfer Blog

Category: xmpp

Shaking Hands With OMEMO: X3DH Key Exchange

In this blog post I take a detailed look at how the Extended Triple Diffie-Hellman Key Exchange (X3DH) works. This algorithm is part of the cryptography that drives OMEMO.

April 4, 2019
Another Step to a Google-free Life

Today I * registered an account at mailbox.org * changed my mail address to username+service@mailbox.org on all the services I use * decoupled and deleted YouTube from my Google Account Yay!

March 25, 2019
A look at Matrix.org’s OLM | MEGOLM encryption protocol

In this post I take a closer look on how matrix.org’s crypto protocols olm/megolm compare to the OMEMO protocol.

March 10, 2019
I Love Free Software Day 2019

Today is I Love Free Software Day! Time to thank the developers of your favorite free software!

February 14, 2019
Brussels Day 1 and 2

The XSF summit is over. Next will be FOSDEM.

February 2, 2019
Unified Encrypted Payload Elements for XMPP

An envelope hiding the original message – Image by Bru-nO

This is a proposal to extract the element encryption principle from OpenPGP for XMPP to make it applicable to other encryption protocols.

January 17, 2019
Join the Fediverse!

vanitasvitae’s blog is now part of the fediverse!

January 12, 2019
QR-Code Generator for OMEMO

I wrote a small tool that generates QR-Codes for OMEMO fingerprints.

November 3, 2018
Future of OMEMO

OMEMO brought many new faces to XMPP. However, there is quite a lot of controversy around it. Part of it are technical discussions, others are more or less of a political nature. Let me list some of them for you.

September 7, 2018
Summer of Code: Smack has OpenPGP Support!

I am very proud to announce, that Smack got support for OpenPGP for XMPP!

July 30, 2018