https://devzone.nordicsemi.com/f/nordic-q-a/116673/nrf-mesh-encryption-algorithmHello. I am currently working on a Mesh Network using the Nordic Thingy53 board. As far as I understand, the Mesh protocol developed by Nordic already has encryption, obfuscation, authentication and replay protection built-in (as noted here https://docsen-USTelligent Community 13Mon, 25 Nov 2024 13:50:08 GMThttps://devzone.nordicsemi.com/thread/511919?ContentTypeID=1Mon, 25 Nov 2024 13:50:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:539edca1-76dd-4725-a9d4-d038f808bc4bHieu<p>Hi&nbsp;MarioStoica,</p> <p>The choice of encryption in the&nbsp;Mesh stack doesn&#39;t come from a decision made by Nordic, but from the&nbsp;Bluetooth Mesh Protocol specification. Therefore, it cannot be changed.</p> <p>Please refer to Section 2: Mesh system architecture, and Section 3: Mesh networking in <a href="https://www.bluetooth.com/specifications/specs/mesh-protocol/">the Bluetooth Mesh Protocol specification</a> for more information.</p> <p>Hieu</p><div style="clear:both;"></div>