https://devzone.nordicsemi.com/f/nordic-q-a/118881/diffie-hellman-generation-detailsHi! We are in the process of certifying a product using an nRF52840 against EN18031-1 (RED Cybersecurity) where we need to answer details regarding generation of cryptographic keys. Could you please help us answer the following information: How isen-USTelligent Community 13Wed, 12 Mar 2025 07:35:20 GMThttps://devzone.nordicsemi.com/thread/526849?ContentTypeID=1Wed, 12 Mar 2025 07:35:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb1c2bf9-fb89-44ed-a61d-aef71b20152bEinar Thorsrud<p>Hi,</p> <p>The LTK is generated according to Bluetooth core specification Vol 3, Part H, 2.3.5.6.5 Authentication stage 2 and long term key calculation Other keys, including LTK for legacy pairing (not recommended to be used) are generated according to Vol 3, Part H, Appendix B.&nbsp;Key Management.</p> <p>All security requirements from the Bluetooth core specification are followed by Nordic, including the requirements for secure random numbers generation.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/526182?ContentTypeID=1Thu, 06 Mar 2025 13:29:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:976c0fab-491f-4cd4-a6e5-fd2d23224fefEinar Thorsrud<p>HI,</p> <p>Unfortuantely not. We are working actively on&nbsp;material for&nbsp; on the&nbsp;RED Cybersecurity certification but I do not have an update or timeline yet, unfortunately.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/526110?ContentTypeID=1Thu, 06 Mar 2025 09:29:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a9e39ec4-721d-4d0f-88fe-7a0bcbd555c7andreasw781<p>Any updates on this?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/522866?ContentTypeID=1Thu, 13 Feb 2025 13:28:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ce559b7d-b6c7-45c4-a402-2475efbf0d36Einar Thorsrud<p>Hi,</p> <p>We are looking into this and will get back to you.</p><div style="clear:both;"></div>