In a world where smart buildings are becoming increasingly connected, KNX Secure plays a vital role in safeguarding automation systems from cyber threats. Developed by the KNX Association, KNX Secure is an advanced security extension of the KNX standard. It is designed to ensure data integrity, confidentiality, and protection against unauthorized access, while maintaining flexibility and compatibility across devices and systems.
KNX Secure operates on two levels. KNX IP Secure encrypts communication between KNX devices over IP networks, which helps prevent tampering or interception. This is especially important for systems accessed remotely. KNX Data Secure, on the other hand, protects communication on traditional media such as twisted pair. It does so by encrypting telegrams and verifying the authenticity of each message. Both methods are built on AES-128 encryption and comply with international standards, including ISO 18033-3 and EN 50090-3-4.
One of the strengths of KNX Secure is its ability to integrate with existing installations. System integrators can deploy both secure and non-secure devices within the same environment by using the KNX Secure Proxy. This means upgrades can be introduced without the need for a complete system overhaul. With a growing number of KNX Secure-certified products and full support from ETS for secure commissioning, setting up a protected KNX system is both practical and accessible.
As smart homes and commercial buildings continue to develop, KNX Secure provides a reliable way to combine advanced functionality with strong protection. It offers users and professionals confidence in a system that meets modern security needs through a globally trusted standard.
