Keys for DTLS and TLS
To send encrypted messages, your device and the server need the same pre-shared key (PSK). Your device sends
its identity in the handshake, the server looks up the key for it. Use DTLS 1.2 on
UDP port 41300 or TLS 1.2 on TCP port 12400 of 164.30.75.205.
See the docs for the device settings.
The keys also work for LwM2M with DTLS on UDP ports 15684 (server) and 5784
(bootstrap): there the identity must be the endpoint name of the device, e.g.
urn:imei:351234567890123.
A key is deleted 90 days after it was last used.
Keys in operation
The identity and a short fingerprint of each key, so you can check which key your device has. The keys themselves are never shown here.
| Identity | Key | Fingerprint | Type | Created | Last used | Expires | Handshakes |
|---|---|---|---|---|---|---|---|
dk-cellular-test |
128 bit | 648edada |
user | 2026-10-04 | 2026-10-05 16:06 UTC | 2027-01-03 | 19 ok / 0 failed |
ict-gtktak |
128 bit | 6974b2ec |
user | 2026-10-04 | never | 2027-01-02 | 0 ok / 0 failed |
ict-hp4jhm |
128 bit | 9f20302e |
user | 2026-10-04 | 2026-10-04 17:46 UTC | 2027-01-02 | 8 ok / 4 failed |
urn:imei:359404230038656 |
256 bit | 42486dd6 |
user | 2026-10-06 | never | 2027-01-04 | 0 ok / 0 failed |
urn:imei:359404235389831 |
128 bit | 189aa388 |
user | 2026-10-05 | 2026-10-06 13:48 UTC | 2027-01-04 | 59 ok / 0 failed |