🇪🇸 IETF-123 Madrid: Merging ELA Security with Mari Networks

Jul 29, 2025·
Geovane Fedrecheski
Geovane Fedrecheski
· 2 min read
IETF-123 meeting in Madrid, Spain

I am just coming back from the IETF-123 meeting in Madrid, what a week!

In this beautifully organized event where the weather blessed us with a chill wind to cool off the summer sun of Spain, I had the pleasure and fun of merging two projects I’ve been passionately working on since I started my journey at Inria Paris:

Two Worlds Colliding

Lightweight Authorization over EDHOC (ELA): A protocol for secure automated enrollment of IoT nodes that we are standardizing at the IETF.

Micro-robot Access Radio Infrastructure (Mari): Our under-development “mini 5G” network that allows connecting thousands of mobile tiny robots and IoT nodes (relying only on BLE radios — low cost, low power, widely available).

The Integration

I worked on integrating the security of ELA into the Mari network during the IETF Hackathon, and demo-ed the results during the Hackdemo Happy Hour.

During the LAKE-WG meeting, I also presented updates about our ELA draft, including plans to make it compatible with post-quantum cipher suites.

Looking Forward

Plenty of fun and still more to come, as all this work evolves and unrolls into standards and large scale testbed deployments.

Acknowledgments

Big thanks to the team who made the experience much more enjoyable: Elsa López Pérez, Yuxuan SONG, Mališa Vučinić.


Conference Highlights

Hardware dongles and devices

Presenting the ELA-Mari integration at the Hackathon

Hackdemo presentation

Demonstrating the ELA-Mari integration during the Hackdemo Happy Hour

Team photo in Madrid

The amazing team