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nRF9160: Where are DTLS keys stored?

Hi,

The LwM2M sample app uses the function nrf_inbuilt_key_write() in the file nrf_inbuilt_key.h to store keys for the DTLS stack. It is also offloads net sockets with the config CONFIG_NET_SOCKETS_OFFLOAD=y. Questions:

1) What does offloading net sockets mean? Is the TCP/IP stack incl DTLS-layer deployed on the modem?

2) Where does nrf_inbuilt_key_write() store the keys? Dependes on CONFIG_NET_SOCKETS_OFFLOAD?

BR / Björn

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