# Dominic Letz | Diode DPKI: Why blockchain is the solution to IoT security | COSCUP 2019

- Channel: [Taipei Ethereum Meetup](https://streameth.org/taipei-ethereum-meetup)
- Date: 2019-10-07
- Duration: 29:36
- Topics: ethereum
- Watch: https://streameth.org/watch/yt-JiQghT6Tsqg
- YouTube: https://www.youtube.com/watch?v=JiQghT6Tsqg

## Description

Diode DPKI: Why blockchain is the solution to IoT security

Web PKI is the standard for resolving server authenticity in IoT device deployments. We highlight it’s known problems and recent hacks against Web PKI specifically in IoT deployments, and show a blockchain-based decentralized PKI (DPKI) approach that enables devices to fetch pinned certificates directly from blockchain to solve most, if not all, of the shortcomings of Web PKI. The demo runs on Raspberry PI on the device and a Firefox extension on the client side both connecting securely to the blockchain will be presented. Previous attempts on light clients struggled to either keep data size small or sacrifice security. We show a new approach that allows even tiny devices such as ESP32 to connect securely to a blockchain.

共筆: https://hackmd.io/@coscup/Hyr-gQg4r

講者: 
Dominic Letz

Dominic Letz, Chief Technology Officer of Diode at Exosite has more than ten years experience in managing large scale M2M and IoT deployments both at Exosite and before that at Nokia in Europe. Dominic innovated in connecting smart devices and using collected data to improve products and learn user behavior. His focus is now on bringing the security of smart device communication to the next level.

Slide:
https://www.slideshare.net/yahsinhuangtw/coscup-2019-diode-dpki-why-blockchain-is-the-solution-to-iot-security

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