“Sigfox does include encryption and many security mechanism.
See: https://www.sigfox.com/sites/default/files/1701-SIGFOX-White_Paper_Security.pdf
However these are handled by Sigfox and you only have 12 byte of data to play with.
You can code these 12 bytes as you like, but as the number of bytes are limited, it will be challenging to find an proper crypto algorithm.
”
Last Update: September 14, 2017
September 14, 2017 1896 SIGFOX Q&A