# Matter and Certificate Revocation

DevFeed: [Matter and Certificate Revocation](<https://devfeed.tech/articles/matter-and-certificate-revocation-13910.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/matter-and-certificate-revocation/>)

Author: John Lee

Published: 2023-10-23T00:00:00Z

Content type: article

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [Matter](<https://devfeed.tech/topics/matter.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [blog](<https://devfeed.tech/tags/blog.md>), [certificates](<https://devfeed.tech/tags/certificates.md>), [devices](<https://devfeed.tech/tags/devices.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [exploit](<https://devfeed.tech/tags/exploit.md>), [iot](<https://devfeed.tech/tags/iot.md>), [matter](<https://devfeed.tech/tags/matter.md>), [security](<https://devfeed.tech/tags/security.md>), [trust](<https://devfeed.tech/tags/trust.md>)

## AI overview

This article explains certificate revocation in Matter, where devices use Device Attestation Certificates within a PKI-based security model. It describes Certificate Revocation Lists, how revocation affects PAI and DAC certificates, checks during commissioning, user notification, and vendor replacement of a device's DAC.

## Source excerpt

In the previous blogs, we discussed various aspects of Matter. One of which was the Matter Security Model. Matter's Security Model is based on PKI infrastructure, a widely used security model for securing communications and establishing trust and identity in the digital world. (To know more about Matter's Security Model you can read this blog).